WO2017135491A1

WO2017135491A1 - Polymer composite material

Info

Publication number: WO2017135491A1
Application number: PCT/KR2016/001522
Authority: WO
Inventors: 누르 안나스 로즐란무함마드; 조명현
Original assignee: 키스와이어 에스디엔 비에이치디
Priority date: 2016-02-05
Filing date: 2016-02-16
Publication date: 2017-08-10
Also published as: EP3222775A1; US20180371691A1; KR101680284B1; EP3222775A4

Abstract

The present invention relates to a polymer composite material that is light, but has high strength, high toughness, and excellent wear resistance. The polymer composite material has a multilayer structure in which one or more types of steels and fibers are implanted in a polymer and bonded thereto. The polymer composite material comprises: the polymer; a filament implanted in the polymer and bonded to the polymer; and a fiber implanted in the polymer and bonded to the polymer, wherein only one of the filament and the fiber is implanted in the polymer and bonded to the polymer, or both the filament and the fiber are simultaneously implanted in the polymer and bonded to the polymer.

Description

Polymer Composites

The present invention relates to a polymer composite material, and more particularly, to a polymer composite material having light weight, high strength and high toughness, and excellent wear resistance by forming a multilayered structure by bonding one or more kinds of steel and fibers in a polymer to be bonded and bonded. will be.

In general, steel wires are used in mooring steel ropes for offshore oil and gas production facilities, steel ropes for offshore cranes, mining ropes, cables for structures and bridges, and the like. Steel is also used as a reinforcement for sports, industrial materials, automobiles and tires.

In order to use steel for such a use, the strength of steel is progressing. Steel ropes for mooring or steel cranes for offshore cranes should be made of steel with high corrosion resistance because steel is easily corroded, and steel with excellent corrosion resistance should be used while reducing the weight as the depth applied to the rope increases.

However, in order to increase the strength of conventional steel or to produce steel having excellent corrosion resistance, there is a problem in that the weight of the steel must be increased. As the self weight of steel increases, so does the weight of equipment using steel. Accordingly, a problem may occur in terms of energy saving of facilities using steel, and may cause inconvenience to facilities using steel as the weight of steel increases.

Therefore, it is necessary to develop a material which is light and has strength and toughness comparable to that of steel. However, looking at the prior art, but can increase the strength of the steel, at the same time there is a problem that there is a limit in realizing the weight while reducing the weight of the steel.

The present invention is to solve the above-mentioned problems, and more specifically, by polymerizing one or more kinds of steel and fiber in the polymer adhesive bonding to form a multi-layer structure, a lightweight, high strength and high toughness, excellent wear resistance polymer composite material It is about.

The polymer composite material of the present invention for achieving the above object comprises a polymer, a filament planted inside the polymer and adhesively bonded to the polymer, a fiber planted inside the polymer and adhesively bonded to the polymer, Any one of the filament or the fiber is embedded in the polymer and bonded to the polymer, or the filament and the fiber are simultaneously planted inside the polymer and bonded to the polymer, so that it has light strength and high toughness. It is characterized by.

The filament of the polymer composite material of the present invention for achieving the above object is preferably made of at least one steel or fiber, the polymer is adhesively treated with an adhesive is preferably adhesively bonded to the filament or the fiber. Preferably, the filaments or the fibers are plasma surface modified to be adhesively bonded to the polymer.

In order to achieve the above object, it is preferable that an adhesive force ratio of the polymer and the filament or the polymer and the fiber of the polymer composite material of the present invention is 5% or more, and is formed between the polymer and the filament or the polymer and the fiber. It is preferable that the contact interface void ratio of the contact interface used becomes 90% or less.

The filament of the polymer composite material of the present invention for achieving the above object is located in the center of the polymer, the fiber is preferably located around the filament, the fiber is made of a plurality, the fiber around the filament It is preferable to form a layer, and the fiber layer is composed of at least one layer.

The polymer composite material of the present invention for achieving the above object further comprises a filler which is embedded in the polymer and bonded to the polymer, the filler is preferably made of steel or fiber, the filament and the fiber is It is preferred that the polymer is planted in any one or more of straight, twisted, and woven fabrics.

The polymer of the polymer composite material of the present invention for achieving the above object is made of any one or more of TPU (Thermoplastic Polyurethane), HDPE (high Density Polyethylene), PE (Polyethylene), PP (polypropylene), polyester, It is preferable that a fiber consists of any one or more of aramid, polyester, nylon, and polyethylene.

The cross section of the polymer composite material of the present invention for achieving the above object is preferably formed in any one shape of a circle, a square, a plate, a sheet, the polymer is a high pressure and rapid cooling treatment, the inside of the polymer It is preferable that the void area ratio is formed to be 2% or less.

Among the polymers of the polymer composite material of the present invention for achieving the above object, the HDPE polymer is preferably made of HDPE and HDPE-g-MAH additive, when the polymer is HDPE, 5% silane and 95% of ions Preferably, the fibers or filaments are adhesively bonded to the polymer by treatment with water or a solution consisting of 5% silane and 95% ethanol.

In the polymer composite material of the present invention, one or more kinds of steel and fiber are adhesively bonded by planting in the polymer. As the steel and fibers are planted in the polymer and bonded to each other, excellent tensile strength and cutting load can be obtained.

In addition, the adhesive treatment of the polymer and the filament or fiber, and the adhesive bonding of the filament and the fiber to the polymer by the plasma surface modification treatment has the advantage of increasing the adhesive strength of the filament and the polymer or fiber and the polymer.

In addition to the high pressure and rapid cooling of the polymer to reduce the polymer voids, there is an advantage that can increase the tensile strength of the polymer. Polymers and fibers have a smaller self weight than steel, and thus have excellent strength and cutting loads, but also have a lighter composite material.

1 to 3 is a view showing a composite material according to an embodiment of the present invention.

4 is a view showing a cross section of FIG.

5 to 7 is a view showing a composite material according to an embodiment of the present invention.

8 is a diagram showing the relationship between the adhesive force ratio (%) and the annual efficiency (%).

9 is a graph showing the relationship between the annual efficiency (%) and the tensile load.

10 is a view showing the tensile strength of the composite material according to an embodiment of the present invention.

11 is a view showing a cutting load of the composite material according to an embodiment of the present invention.

12A is a view showing an adhesive interface between an adhesive polymer and a filament or fiber according to an embodiment of the present invention.

FIG. 12B is a diagram illustrating components analyzed by EDX at an adhesive interface between an adhesive polymer and a filament or fiber. FIG.

13A is a view showing an adhesive interface between an untreated polymer and a filament or fiber according to an embodiment of the present invention.

FIG. 13B is a diagram illustrating an analysis of components by EDX on an adhesive interface between an untreated polymer and a filament or fiber.

14 is a view showing the adhesive force between the polymer and the filament or fiber before and after the adhesive treatment according to an embodiment of the present invention.

15 is a view showing the adhesion of the polymer to which the adhesion promoter according to an embodiment of the present invention.

16 is a view showing an adhesive interface before and after plasma surface modification according to an embodiment of the present invention.

17 is a view showing the adhesive force before and after the plasma surface modification process according to an embodiment of the present invention.

18 is a diagram illustrating an adhesive interface according to an embodiment of the present invention.

19A and 19B are views illustrating changes in the area of pores of a polymer before and after high pressure and rapid cooling according to an embodiment of the present invention.

20A and 20B are graphs showing a polymer internal void ratio (%) before and after high pressure and rapid cooling according to an embodiment of the present invention.

Tensile strength (N / mm²) increases in proportion to tensile load (N), and cutting strength (N / mm²) increases in proportion to breaking load (N). Therefore, when the tensile load (N) and the cutting load (N) increases, the tensile strength (N / mm²) and cutting strength (N / mm²) increases. Therefore, in the following description, the increase in tensile load (N) or cutting load (N) refers to the increase in tensile strength (N / mm²) and cutting strength (N / mm²).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The polymer composite material 100 of the present invention comprises a polymer 110, filament 120, fiber 130. Only one of the filament 120 or the fiber 130 may be planted inside the polymer 110 to be adhesively bonded to the polymer 110 in the polymer 110, and the filament 120 and the fiber ( 130 may be simultaneously planted inside the polymer 110 to be adhesively bonded to the polymer 110.

1 and 2, the filament 120 is planted inside the polymer 110 and adhesively bonded to the polymer 110. The filament 120 may be made of at least one steel or fiber. That is, the filament 120 may be made of steel or may be made of fiber. The filament 120 may be made of one, it may be made of two or more.

3 and 4, the polymer composite material 100 of the present invention may further include the fiber 130. The fiber 130 is positioned around the filament 120, and may be formed of a plurality of fibers to form a fiber layer 131 around the filament 120. That is, the polymer composite material 100 may be formed in a form in which the filament 120 is positioned at the center thereof and the fiber 130 is surrounded by the fiber layer 131.

The filament 120 and the fiber 130 are planted inside the polymer 110 and adhesively bonded to the polymer 110. 3 and 4, the polymer 110 may be formed of a first polymer 111 and a second polymer 112. The first polymer 111 surrounds the filament 120. The second polymer 112 surrounds the fiber 130. The filament 120 is planted and bonded to the first polymer 111, and the fiber 130 is planted and bonded to the second polymer 112. Here, the first polymer 111 and the second polymer 112 may be the same type of polymer, and different types of polymers may be used.

The fiber layer 131 formed of a plurality of fibers 130 may be formed of one layer, and the fiber layer 131 may be formed of two or more layers.

Referring to FIG. 5, the filler 140 may be planted in the polymer 110 to be adhesively bonded to the polymer 110, and the filler 140 may be made of steel or fiber. The filler 140 may be planted in an empty space between the fiber 130 or an empty space between the fiber 130 and the filament 120. As the filler 140 is planted in the empty space, a decrease in strength of the empty space may be prevented. Therefore, the strength of the composite material 100 is increased by planting the filler 140 having high strength in the empty space. Since the filler 140 is made of steel or fiber having high toughness, there is an effect of increasing the toughness of the composite material 100.

Referring to FIG. 6, the composite material 100 may have a cross section of various shapes. The cross section of the composite material 100 may be generally circular, but is not limited thereto, and may have a shape of a rectangle, a plate, a sheet, or the like. In addition, the cross section of the composite material 100 may be formed in another release form (trapezoid, H cross-sectional shape, Z cross-sectional shape, etc.).

The filament 120 and the fiber 130 may be planted in various shapes inside the polymer 110 to be adhesively bonded. The filament 120 and the fiber 130 may be planted in the polymer 110 in a straight line. Referring to FIG. 3, the filament 120 and the fiber 130 may be twisted in the form of the polymer. It can be planted in (110). In addition, the filament 120 and the fiber 130 may be planted in the polymer 110 in the form of a fabric (mesh or braded).

That is, the filament 120 and the fiber 130 may be planted extending in one direction in the polymer 110, and may be planted in the form of a fabric extending simultaneously in the horizontal and vertical directions. The filament 120 and the fiber 130 are planted in the polymer 110 is not limited thereto, but may be planted in various forms.

The shape of the composite material 100 is not limited to the above-described shape, but may be formed in various shapes. Referring to FIG. 7, two filaments 120 are planted in the center of the polymer 110, four fibers 130 are bundled, and four fibers 130 form the fiber layer 131. Can be formed. In addition to the one that can increase the strength of the composite material 100, it can be made in a variety of shapes.

The polymer 110 may be TPU (Thermoplastic Polyurethane), HDPE (High Density Polyethylene), PE (Polyethylene), PP (polypropylene), Polyester, etc., and the type of the fiber 130 may be aramid, polyester , Nylon, polyethylene and the like can be used. The type of the polymer 110 and the fiber 130 is not limited thereto, and various kinds may be used as long as the strength of the composite material 100 may be increased. Thermoplastic Polyurethane (TPU), High Density Polyethylene (HDPE), Polyethylene (PE), PP (polypropylene), Polyester, etc., which are types of the polymer 110, and aramid, polyester, nylon, polyethylene, etc., which are types of the fiber 130 Is a well-known technology, detailed description thereof will be omitted.

As the steel, metal plated steel may be used, and steel without metal plating may be used. The plated steel may be zinc plated, brass plated, or the like, and various other metals may be plated on the steel.

An important quality characteristic of the composite material 100 is a spinning factor (%), and the annual efficiency (%) is between the filament 120 and the fiber 130 and the polymer 110 planted in a polymer. Determined by adhesion force ratio (%).

Where the annual efficiency (%) is

Annual efficiency (%) = (tensile load of composite material / (sum of individual fiber and filament 120 plus the tensile load of polymer 110)) * 100

Is defined. That is, the sum of the individual tensile loads of the filament 120 and the fiber 130, which are planted in the polymer 110, and again the sum of the tensile loads of the polymer 110 of the composite material 100 The ratio of tensile load is the annual efficiency (%).

Here, the adhesion ratio (%) is

Adhesive Force Ratio (%) = (Adhesive Strength (N / mm²) / Polymer Tensile Strength (N / mm²)) * 100

Is defined. Adhesive strength is a value obtained by dividing the adhesion force (N) of the polymer 110 and the filament 120 or the polymer 110 and the fiber 130 by the area of the adhesive interface.

8 is a view showing the relationship between the adhesive force ratio (%) and the annual efficiency (%), Figure 9 is a view showing the relationship between the annual efficiency (%) and the tensile load (N). Referring to FIGS. 8 and 9, it can be seen that as the adhesive force ratio (%) increases, the annual efficiency (%) increases, and as the annual efficiency (%) increases, the tensile load of the composite material 100 increases. In addition, as the adhesive force between the polymer 110 and the filament 120 or the polymer 110 and the fiber 130 increases, the cutting load of the composite material 100 increases.

Therefore, the adhesive force (%) of the polymer 110 and the filament 120 or the polymer 110 and the fiber 130 is preferably 5% or more. When the adhesive force ratio (%) is 5% or less, since the tensile load and the cutting load of the composite material 100 become small, it becomes difficult to obtain the desired strength of the composite material 100. Therefore, the adhesive force (%) of the polymer 110 and the filament 120 or the polymer 110 and the fiber 130 is preferably 5% or more.

10 and 11 are views showing tensile strength and cutting load according to elongation of the composite material 100. 10 and 11, the composite material 100 can be seen that the tensile strength and the cutting load increases compared to the polyester, the elongation is reduced. That is, the elongation when the composite material 100 reaches the tensile strength and the cutting load is reduced compared to the elongation when the polyester reaches the tensile strength and the cutting load. As described above, the elongation decreases as a property of a steel material, and the composite material 100 is similar to that of steel as the filament 120 and the fiber 130 are planted in the polymer 110. There is.

The composite material 100 can be seen that the tensile load and the cutting load increases as the adhesive strength ratio (%) as described above, in order to increase the adhesive strength ratio (%) the polymer 110 and the filament 120 Or increase the adhesion between the polymer 110 and the fiber 130.

In order to increase the adhesive strength, the polymer 110 may be adhesively bonded to the filament 120 or the fiber 130 after the adhesive treatment through the adhesive. The type of adhesive may vary depending on the type of the polymer 110.

When the polymer 110 is high density polyethylene (HDPE), a solution composed of 5% silane and 95% deionized water or 5% silane and 95% ethanol After the adhesive treatment, the filament 120 or the fiber 130 may be adhesively bonded. Through such an adhesion treatment (chemical treatment), the adhesion between the polymer 110 and the filament 120 or the polymer 110 and the filament 120 is improved, and thus the tensile load of the composite material 100. And cutting load is also increased.

12A and 12B illustrate that the high density polyethylene (HDPE) in the polymer 110 is bonded with 5% silane and 95% deionized water to bond the galvanized steel. It is a figure which shows the adhesion interface of a sample. Referring to FIG. 12A, it can be seen that pores or pores of the adhesive interface are very small, which means that the polymer 110 is well bonded to the steel.

12B is a graph of the components of the adhesive sample described above with EDX. 12B, it can be seen that carbon (C), which is a chemical component of the polymer 110, and a zinc component of zinc-plated steel are uniformly distributed. This means that the polymer 110 and the steel are well chemically bonded.

Figures 13a and 13b show the sample without adhesion of 5% silane and 95% deionized water to high density polyethylene (HDPE) and galvanized steel in the sample described above. It is a figure which shows an adhesive interface. Referring to 13a, large gaps or pores exist in the adhesive interface. This indicates that the adhesion between the polymer 110 and the steel is not properly made.

13b is a graph in which the above-described sample is analyzed by EDX, and it can be seen that carbon (C), which is a chemical component of the polymer 110, is not uniformly distributed. This means that the chemical adhesion between the polymer 110 and the steel is not good.

As described above, when the polymer 110 is HDPE, the filament 120 or the fiber 130 is treated with 5% silane and 95% deionized water. It can be seen that when the adhesive bond to the adhesive strength increases. When the polymer 110 is a high density polyethylene (HDPE), in addition to 5% silane and 95% deionized water for adhesion treatment, 5% silane and 95% ethanol May be used.

The type of adhesive may be a different type of adhesive according to the type of the polymer 110, and when the polymer 110 is a TPU or a polyester, a Chemlok adhesive may be used. Chemlok adhesive is a commercially available adhesive and its detailed description is omitted. By using such an adhesive it is possible to increase the adhesive strength of the polymer 110 and the filament 120 or the polymer 110 and the fiber 130. 14 is a view comparing the adhesive force before and after the adhesive treatment to the TPU through the adhesive. Referring to Figure 14, it can be seen that the adhesive force increases when the adhesive treatment to the TPU through the adhesive. The type of the adhesive is not limited thereto, and various adhesives capable of increasing the adhesive force of the polymer 110 may be used according to the type of the polymer 110.

The polymer 110 may be made by adding an adhesion promoter. In order to add the adhesion promoter, the polymer 110 is dissolved and mixed with the adhesion promoter. The adhesion promoter may improve adhesion between the polymer 110 and the filament 120 or the polymer 110 and the fiber 130. The adhesion promoter may be used in various kinds according to the type of the polymer 110, and when the polymer 110 is made of high density polyethylene (HDPE), the adhesion promoter may be HDPE-g-MAH.

FIG. 15 illustrates that the polymer 110 is 90% made of high density polyethylene (HDPE) and has improved adhesion by using 10% HDPE-g-MAH adhesion promoter. When the polymer 110 is a high density polyethylene (HDPE), the adhesion promoter may be carbon black in addition to HDPE-g-MAH. By using the adhesion promoter, when using the HDPE-g-MAH adhesive strength is increased by 8 times, when using carbon black the adhesion strength is increased by 2 times.

In order to improve adhesion between the polymer 110 and the filament 120 or the polymer 110 and the fiber 130, the filament 120 or the fiber 130 may be subjected to an Atmospheric pressure plasma surface modification treatment Plasma surface modification treatment "). The plasma surface modification treatment of the filament 120 or the fiber 130 improves adhesion to the polymer 110.

FIG. 16 is a view showing adhesion sites with the polymer 110 before and after the filament 120 or the fiber 130 is subjected to plasma surface modification. Plasma surface modification can reduce gaps occurring at the adhesive interface. The gap Gap is a void of the adhesive interface, and the plasma surface modification process reduces the void of the adhesive interface, and thus the polymer 110, the filament 120, or the polymer 110 and the fiber ( 130) can improve the adhesion.

17 is a view showing the adhesive force before and after the plasma surface modification treatment to the filament 120 or the fiber 130, the brass plate when the polymer 110 is TPU and the fiber 130 is aramid ( It is a test result showing the adhesive strength with the brass plate and the adhesive force with the brass plate when the polymer 110 is a polyester and the fiber 130 is aramid. Referring to FIG. 17, in the case where the polymer 110 is a TPU, the adhesive strength is improved by about 2 times through plasma surface modification, and when the polymer 110 is a polyester, about 5 times through the plasma surface modification. It can be seen that the adhesive force is improved.

The polymer 110 and the filament 120 or the polymer 110 and the fiber 130 are bonded to the polymer 110 and the filament 120 or the polymer 110 and the fiber 130 Voids occur in the adhesive interface generated between them, and the void ratio at adhesion interface (%) is preferably 90% or less.

Here, the adhesive interfacial void ratio (%) is when the composite material 100 is cut,

% Of adhesive interface pore = (sum of all pore lengths at adhesive interface / total length of adhesive interface) * 100.

Looking at the method of measuring the adhesive interfacial void ratio (%) with reference to Figure 18 as follows. After cutting the composite material 100 by using an electron microscope to measure the length of all the pores in the area of 407.17 * 542.28 μm² at a magnification of x 600 and the length of the contact interface, the sum of all pore lengths to the adhesive interface The percentage of adhesive interface voids was measured by dividing by the total length of. The percentage of contact interface voids in FIG. 18 is 102.76 μm in the sum of all pore lengths, and the total length of the adhesive interface is measured at 630.83 μm, so that the bond interface porosity ratio may be measured as 102.76 / 630.83 * 100 = 16.3%. .

When the adhesive interface void percentage (%) is greater than 90%, as the voids become larger, the adhesion between the polymer 110 and the filament 120 or the polymer 110 and the fiber 130 decreases, thus The tensile load and the cutting load of the composite material 100 are reduced. Therefore, it is preferable to keep the adhesive interface void ratio (%) at 90% or less.

The polymer 110 occupies 15-40% of the total cross-sectional area of the composite material 100. Therefore, when the strength of the polymer 110, which occupies a large area of the composite material 100, is increased, the strength of the composite material 100 may be increased. The polymer 110 is melted and used to produce the composite material 100. In order to increase the strength of the polymer 110, it is preferable to cool the polymer 110 in a molten state at high pressure and rapid cooling. That is, the polymer 110 is rapidly cooled while increasing the pressure during solidification. Rapid cooling of the polymer 110 at high pressure reduces voids generated in the polymer 110, thereby increasing the tensile strength of the polymer 110.

19A and 19B are diagrams showing voids inside the polymer 110 before and after the polymer 110 is rapidly cooled at a high pressure. 19A is a view before rapid cooling of the polymer 110 at high pressure, and FIG. 19B is a view after rapid cooling of the polymer 110 at high pressure. 19A and 19B, when the polymer 110 is rapidly cooled at a high pressure, the pore area is reduced from 2698.57 μm to 173.78 μm, and the pore area is reduced to 1/15 compared with the initial pore area. This reduction in porosity increases the tensile strength of the polymer 110.

When the polymer 110 is rapidly cooled at a high pressure, the polymer internal void area ratio (%) is preferably 2% or less. Polymer internal void area ratio (%) is measured by cutting the composite material 100, the polymer internal void area ratio (%) is defined as follows.

% Polymer internal pore area = (sum of pore areas in polymer cut area / polymer cut area) * 100

Looking at the measurement method of the polymer void area percentage (%) is as follows. The composite material 100 is cut and photographed at x 5000 magnification using an electron microscope. By adding the area of the pores shown in the picture and dividing by the area of the picture, the ratio of the pore area inside the polymer is obtained. In this case, when cutting the composite material 100, the polymer internal pore area ratio (%) can be measured by cutting the area having only the polymer 110 instead of the contact interface formed therein and observing it under a microscope.

20A and 20B are diagrams showing a polymer internal void area ratio (%) before and after rapid cooling of the polymer 110 at high pressure. 20A is a view before rapid cooling of the polymer 110 at high pressure, and FIG. 20B is a view after rapid cooling of the polymer 110 at high pressure. When the polymer 110 is rapidly cooled at high pressure, the sum of the area of the pores is reduced, thereby reducing the polymer pore area ratio (%). 20A and 20B measure two samples, and by rapidly cooling the polymer 110 at high pressure, the polymer void area percentage decreases from 2.71% to 0.11% and from 4.14% to 0.18%. Able to know.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the following Examples are for the purpose of explanation and are not intended to limit the invention.

[실시 예1]Example 1

[Table 1] shows the adhesion of the polymer 110, the filament 120, the fiber type 130 and the adhesion according to specific embodiments of the present invention. The polymer 110, the filament 120, and the fiber 130 were prepared in an in-line facility by using a polymer adhesive sample. The process of in-line equipment consists of adhesive coating, drying and polymer bonding in the extruder. The adhesion force (N) of the sample was measured by the tensile load when the polymer 110 and the filament 120 or the fiber 130 is separated from each other through a tensile tester. In the adhesion test, when the polymer 110 is a high density polyethylene (HDPE) and the filament 120 is galvanized, 5% silane and 95% deionized water or 5% silane It can be seen that the adhesion is improved when the adhesive treatment with (silane) and 95% ethanol. In addition, it can be seen that the polymer 110 is 90% made of high density polyethylene (HDPE) and 10% is improved adhesion when using the HDPE-g-MAH adhesion promoter. The following examples are provided to aid the understanding of the present invention, and do not limit the present invention.

[Correction under Rule 91 26.02.2016]

[실시 예2]Example 2

The following [Table 2] is an experiment for confirming the degree of contribution of the plasma surface modification treatment to the adhesive force improvement of the filament 120 or the fiber 130 and the polymer 110 in a specific embodiment of the present invention.

Referring to FIG. 17, the brass plate and the fiber were subjected to plasma surface modification treatment at room temperature, the molten polymer was infiltrated therebetween, and applied under a constant pressure. The polymer dissolution temperature was 195 to 205 degrees and the plasma surface modification rate was 5 m / min. Through the above experiment to prepare a sample as shown in Table 2, the adhesion between the polymer and the brass plate of each sample was tested. Adhesion results with and without plasma surface modification treatment depending on the type of polymer are listed in Table 2. Referring to [Table 2], after the plasma surface modification treatment, the adhesive strength was increased in both the polymer TPU and the polymer Polyseter. When the polymer was polyester, the adhesive strength was remarkably increased. In addition, as a result of observing the adhesion interface between the polymer and the fiber under a microscope in this experiment, as shown in FIG. Especially when the polymer is polyester and the fiber is aramid, the adhesion is excellent. As such, the plasma surface modification treatment on the filament or the fiber reduces the voids generated at the contact interface, which can improve the adhesion between the polymer and the filament or the polymer and the fiber. The following examples are provided to aid the understanding of the present invention, and do not limit the present invention.

[실시 예3]Example 3

Table 3 below shows the measured values of tensile strength and cutting load according to the adhesive interface void ratio (%) and the adhesive force ratio (%) as specific examples of the present invention. Five samples were prepared by using a composite material composed of brass plated steel cord (filament), aramid (fiber), and TPU (polymer). The manufacturing method was plasma surface modified or chemlock adhesive on the surface of brass plated steel cord and adhesively bonded to the TPU polymer. After a 9-stranded aramid and plasma surface modification treatment, the TPU polymer was adhesively bonded (manufacture of the composite material of FIG. 7). At this time, five kinds of samples having different adhesive strength ratios (%) were changed under different plasma surface modification treatment conditions. Was produced. The bonding temperature of the TPU polymer was 195 to 205 degrees.

The results of calculating the adhesive interfacial porosity (%) of the sample through the above-described method for measuring the interfacial porosity (%) are described in Table 3 below. Looking at the following [Table 3], it can be seen that as the adhesive force ratio (%) increases the annual efficiency and cutting load increases. In particular, when the adhesive force ratio (%) is 3%, a very low cutting load is obtained, so that the adhesive force ratio (%) is preferably 5% or more in order to obtain a desired cutting load. In addition, the adhesive force percentage (%) was found to be related to the adhesive interface void percentage (%). Referring to the following [Table 3], it can be seen that as the adhesive interface void ratio (%) is smaller, the adhesive force ratio (%) increases. Therefore, in order to satisfy the desired cutting load, it is preferable to make the adhesive interface void ratio (%) 90% or less. The adhesive interface void ratio (%) can be made small through the above-described plasma surface modification treatment and the adhesive treatment using the adhesive described above. That is, through the above-described plasma surface modification treatment and the above-described adhesion treatment, the adhesive interface void ratio (%) may be formed to 90% or less, thereby increasing the tensile strength and cutting load of the composite material 100. Will be. The following examples are provided to aid the understanding of the present invention, and do not limit the present invention.

[실시 예 4]Example 4

The following [Table 4] is a table showing the characteristics before and after the rapid cooling of the polymer 110 to a specific embodiment of the present invention. In the experiment of Table 4, four types of samples were prepared by increasing the pressure of the polymer bond and increasing the cooling rate when the polymer was TPU. Working conditions of the four types of samples are as described in Table 4 below.

In the following [Table 4], after increasing the high pressure and applying the cooling rate, the pore inside the polymer decreased about 96%, which indicates that the tensile strength of the TPU polymer increased about 2.6 times. In other words, it can be seen that increasing the pressure and increasing the cooling rate through Table 4 decreases the polymer pore area ratio (%), thereby increasing the cutting load. Therefore, it is desirable to rapidly cool the polymer to a high pressure and keep the polymer internal void area percentage (%) at 2% or less. The following examples are provided to aid the understanding of the present invention, and do not limit the present invention.

The composite material 100 of the present invention is the adhesive to the polymer 110 and the filament 120 or the polymer 110 to improve the adhesion between the polymer 110 and the fiber 130 through an adhesive In addition, the adhesion may be improved through an adhesion promoter (eg, HDPE-g-MAH additive when the polymer 110 is a high density polyethylene (HDPE)). In addition, the filament 120 and the fiber 130 may be subjected to plasma surface modification to improve adhesion. Through this, it is preferable that the adhesion force percentage (%) is 5% or more, and the adhesion interface void percentage (%) is preferably 90% or less. As described above, the adhesive force ratio (%) should be 5% or more and the adhesive interface void ratio (%) should be 90% or less to obtain the desired tensile strength and cutting load of the composite material 100.

In addition, the polymer 110 may be rapidly cooled to a high pressure so that the polymer internal void ratio (%) is 2% or less. Reducing the polymer internal void ratio (%) of the polymer 110 to 2% can improve the tensile strength of the polymer 110, since the polymer 110 occupies a large volume in the composite material 100 It is possible to increase the strength of the composite material (100).

As described above, the composite material 100 which is rapidly treated at high pressure by an adhesive treatment through an adhesive, using an adhesion promoter, a plasma surface modification treatment, and high pressure may have the following effects.

First, the composite material 100 of the present invention can obtain excellent tensile strength and cutting load by bonding the filament 120 and the fiber 130 to the polymer 110. The polymer 110 and the fiber 130 has a lower self-weight than steel and can produce a light composite material 100 having excellent tensile strength and cutting load, and have low elongation at tensile strength and cutting load. It has the advantage of having similar characteristics. That is, the composite material 100 of the present invention can be light, yet have high strength and high toughness.

In addition, the polymer 110 is bonded to the filament 120 and the fiber 130 by adhesive treatment with a solution composed of 5% silane and 95% of ions removed, or 5% silane and 95% ethanol. Adhesive bonding, and the polymer 110 and the filament 120 or the polymer 110 and the fiber by adhesively bonding the filament 120 and the fiber 130 to the polymer 110 by the plasma surface modification treatment There is an advantage that can improve the adhesion of the 130. The polymer 110 has an advantage of increasing the tensile strength of the polymer 110 by reducing the polymer internal voids by high pressure and rapid cooling treatment.

The composite material 100 of the present invention described above is a process of bonding the adhesive through an adhesive, using an adhesion promoter, plasma surface modifying the filament 120 or the fiber 130, and rapidly cooling the polymer 110 at a high pressure. All of them can be rough. However, the composite material 100 is not limited thereto, and some processes may be omitted.

While the present invention has been described with reference to various embodiments, it is not limited thereto, and any thing that can be reasonably interpreted from the scope of the present invention will naturally belong to the scope of the present invention.

Claims

As a polymer composite material,

A polymer, a filament planted inside the polymer and adhesively bonded to the polymer, and a fiber planted inside the polymer and adhesively bonded to the polymer,

Any one of the filament or the fiber is embedded in the polymer and adhesively bonded to the polymer,

And the filament and the fiber are simultaneously embedded in the polymer and adhesively bonded to the polymer.
The method of claim 1,

The filament is a polymer composite material, characterized in that made of at least one steel or fiber.
The method of claim 1,

The polymer is adhesively treated with an adhesive, the polymer composite material, characterized in that the adhesive bonding with the filament or the fiber.
The method of claim 1,

The filament or the fiber is a polymer composite, characterized in that the plasma surface modification treatment, the adhesive bond to the polymer.
The method of claim 1,

The polymer composite material, characterized in that the adhesive force ratio of the polymer and the filament or the polymer and the fiber is 5% or more.
The method of claim 1,

The polymer composite material, characterized in that the contact interface void ratio of the contact interface formed between the polymer and the filament or the polymer and the fiber is 90% or less.
The method of claim 1,

The filament is located in the center of the polymer,

The fiber is polymer composite, characterized in that located around the filament.
The method of claim 7, wherein

The fiber consists of a plurality, forming a fiber layer around the filament,

The fiber layer is a polymer composite, characterized in that composed of at least one layer.
The method of claim 7, wherein

And a filler embedded in the polymer and adhesively bonded to the polymer,

The filler is a polymer composite material, characterized in that made of steel or fiber.
The method of claim 1,

The filament and the fiber,

Polymer composite material, characterized in that planted in any one or more of the form of a straight line, twisted line, woven fabric.
The method of claim 1,

The polymer is made of one or more of TPU (Thermoplastic Polyurethane), HDPE (High Density Polyethylene), PE (Polyethylene), PP (polypropylene), polyester,

The fiber is a polymer composite material, characterized in that made of any one or more of aramid, polyester, nylon, polyethylene.
The method of claim 1,

The cross section of the composite material is a polymer composite material, characterized in that formed in any shape of a circle, a square, a plate, a sheet.
The method of claim 1,

The polymer is a high pressure and rapid cooling treatment, the polymer composite material, characterized in that the pore area ratio of the polymer is formed to 2% or less.
The method of claim 1,

The polymer is a polymer composite material, characterized in that consisting of HDPE and HDPE-g-MAH additives.