CN103601939A

CN103601939A - Radiation protection and sound insulation felt

Info

Publication number: CN103601939A
Application number: CN201210446189.8A
Authority: CN
Inventors: 林嘉祥
Original assignee: XIAMEN JIADA GREEN CONSTRUCTION ENGINEERING Co Ltd
Current assignee: XIAMEN JIADA GREEN CONSTRUCTION ENGINEERING Co Ltd
Priority date: 2012-11-09
Filing date: 2012-11-09
Publication date: 2014-02-26

Abstract

The invention discloses a radiation protection and sound insulation felt, which is mainly composed of regenerated rubber powder, barite powder, and a fire retardant; and a proper amount of an activating agent 463, a silane coupling agent, naphthenic rubber oil, a fire retardant, and an antioxidant can be added according to the needs, wherein the regenerated rubber powder is made from waste old tires, the fineness of the regenerated rubber powder is in a range from 30 to 60 meshes; the fineness of the barite powder is in a range from 60 to 120 meshes; and the fire retardant is tris(beta-chloroethyl) phosphate. The felt has a sound insulation function, also has a radiation protection function, and avoids the degraded sound insulation damping performance caused by felt solidification caused by iron powder rustiness. At the same time, recyclable resources of waste old tires are fully utilized, the material cost and the production energy consumption are low, so the preparation method of the felt has a high economic and social profit, and is accord with the development direction of energy saving and environment-friendliness.

Description

Radioprotective sound-insulating felt

Technical field

The present invention relates to a kind of noise control technique field, especially can effectively intercept the radioprotective sound-insulating felt of noise transmission.

Background technology

Current, noise has become a kind of main environmental pollution, and the acoustic environment problem of buildings is more and more subject to people's concern and attention.Selecting suitable material to process insulating against sound is one of basic fundamental measure in architectural acoustics control engineering.

Having reached the requirement of national encouragement to junked tire precious resources circulation, resource utilization, regeneration, is minimizing truly, innoxious, resource utilization, circulation, safe recycling.The steel wire being separated and fiber can secondary recovery utilizations, and dust can be administered, and the production utilization of rubber powder is subject to the attention of countries in the world and supports energetically for this reason, be solve black pollution and junked tire resource circulation utilization an important development direction.Rubber powder can add in rubber raw materials for the manufacture of various rubber items, saves rubber raw materials, reduces import, thereby reaches the double effects that reduces rubber item cost and improve performance.Along with the development of rubber industry and automobile industry, a large amount of junked tires, rubber item and other scrap stock are on the increase.According to statistics, China is often only tire learies and is no less than 1,500,000 tons, and with annual 10% speed increase, and the rate of recovery only has 30% a few days ago.Because waste old can not get comprehensive utilization, mostly become industrial refuse, both wasted a large amount of available resources, caused again black pollution, having a strong impact on the mankind's living environment.Chinese festiva consumption of rubber amount ranks first in the world.Meanwhile, China is again the serious deficient country of a rubber sources, and annual import rubber, reaches 60% of total flow, and also do not have at short notice basic way to break away from present situation.Waste rubber resources regeneration comprehensive utilizes, and field is very extensive, both can replace part natural rubber, is again main starting material in field of new.Simultaneously, made up the predicament of current China rubber sources wretched insufficiency, China's rubber industry and renewable resource reclaimed rubber are referred to waste old is through physical and chemical processes such as pulverizing, heating, mechanical treatments, its elastic stage is become have rubber plasticity and stickiness, can good sulfuration.In reclaimed rubber component, except containing rubber hydrocarbon, also contain the Synergist S-421 95 of picture carbon black, tenderizer and mineral filler and so on, its feature is to have high dispersing and mutual miscibility.

Along with the high speed development of modern science and technology, the concern a kind ofly cannot see, impalpable source of pollution being subject to all circles day by day, Here it is is called the electromagnetic radiation of " stealthy killer " by people.For this good conductor of human body, hertzian wave draws inevitably can form harm to a certain degree.In general, radar system, TV and broadcast transmission system, radio frequency and microwave medical equipment, the communications transmit station and ultra high-tension transmission line and most of household electrical appliance etc. are all the electromagnetic radiation sources that can produce various forms, different frequency, varying strength.

ZL200510052341.4 discloses a kind of flame-proof sound insulation felt, and wherein soundproof material is iron powder, and in actual procedure, iron powder can produce to get rusty and cause sound-insulating felt sclerosis, reduce damping function, after duration of service is long, the sclerosis of sound-insulating felt and stickup glue are aging, can affect its sound insulation damping capacity.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of radioprotective sound-insulating felt is provided, not only when thering is sound insulation function, also have radiation proof function, avoided because of iron powder sound-insulating felt sclerosis cause the insulating against sound decline of damping capacity of getting rusty.

The technical solution adopted for the present invention to solve the technical problems is: a kind of radioprotective sound-insulating felt, its main raw material is regenerated rubber, ground barium sulfate, fire retardant, can add as required appropriate activator 463, silane coupling agent, naphthenic rubber oil, fire retardant, oxidation inhibitor.The rubber content that the rubber powder that described regenerated rubber system is produced by junked tire is prepared from is at 50% regenerated rubber; Described ground barium sulfate fineness is at 60-120 order; Described fire retardant is tricresyl phosphate (β-chloroethyl) ester.The hardness of ground barium sulfate is high, than great, in body material, when sound wave is met these particles in the air, excite on the one hand the vibration of particle, sound energy consumption.Meanwhile, sound wave will reflect, and numerous particles will make sound wave repeatedly reflect, sound wave trajectory is increased, and acoustic energy consumption will increase, and its sound insulating mechanism is consistent with iron powder, barite stable chemical nature, water insoluble and hydrochloric acid, consistency nonmagnetic and toxicity and rubber is better than iron powder.The particle diameter of inorganic filler is less, and surfactivity is larger, and reinforcing property is better, more unfavorable to the elasticity of cross-linked rubber.So the granularity that improves ground barium sulfate contributes to improve the Young's modulus of body material, improves elastic damping performance.Barite has the performance of absorption of x-rays, is that energetic ray protects good protective material, has cost low, the feature of easy construction simultaneously.

Because sound-insulating felt material is not high to mechanical property requirements.Use regnerated rubber powder to have utilized to contain in original tire except containing rubber hydrocarbon, also contain the Synergist S-421 95 of picture carbon black, additive and mineral filler and so on, without adding again mineral filler, also reduced the use of additive simultaneously, effectively reduce production costs.

Each component and weight ratio content thereof are: regenerated rubber 40-50%, ground barium sulfate 40-60%, activator 463 0.25-0.5%, fire retardant TCEP 4-7.5%, silane coupling agent 0.1-0.3, naphthenic rubber oil 0.27～0.6%, oxidation inhibitor 0.4-1.5% form.Will above each constituent materials by batching, mixing, make embryo, calendering, sulfuration, finished product packing technique and make radioprotective sound-insulating felt.The invention has the beneficial effects as follows when not only thering is sound insulation function, also there is radiation proof function.Make full use of the renewable resource of junked tire, lower cost for material, production energy consumption is low, has higher economic benefit and social benefit, meets the developing direction of energy-conserving and environment-protective.

Claims

1. a radioprotective sound-insulating felt, its main raw material is regenerated rubber, ground barium sulfate, fire retardant, can add as required appropriate activator 463, silane coupling agent, naphthenic rubber oil, fire retardant, oxidation inhibitor, it is characterized in that: the rubber content that the rubber powder that described regenerated rubber system is produced by junked tire is prepared from is at 50% regenerated rubber; Described ground barium sulfate fineness is at 60-120 order; Described fire retardant is tricresyl phosphate (β-chloroethyl) ester.

2. radioprotective sound-insulating felt according to claim 1, is characterized in that: each component and weight ratio content thereof are: regenerated rubber 40-50%, ground barium sulfate 40-60%, activator 463 0.25-0.5%, fire retardant TCEP 4-7.5%, silane coupling agent 0.1-0.3, naphthenic rubber oil 0.27～0.6%, oxidation inhibitor 0.4-1.5% form.