CN102973416A - Preparation method of dental restoring resin taking silicon dioxide and cluster of silicon dioxide as stuffing - Google Patents
Preparation method of dental restoring resin taking silicon dioxide and cluster of silicon dioxide as stuffing Download PDFInfo
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- CN102973416A CN102973416A CN2012105256316A CN201210525631A CN102973416A CN 102973416 A CN102973416 A CN 102973416A CN 2012105256316 A CN2012105256316 A CN 2012105256316A CN 201210525631 A CN201210525631 A CN 201210525631A CN 102973416 A CN102973416 A CN 102973416A
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Abstract
The invention relates to a preparation method of dental restoring resin taking silicon dioxide and cluster of the silicon dioxide as stuffing. The method comprises the following steps: (1) preparing the cluster of the silicon dioxide by using the reaction between bonded groups on the surface of silicon dioxide; (2) adding the silicon dioxide, the cluster of the silicon dioxide, an amine catalyst, and a double-bond-containing silane coupling agent in a cyclohexane solvent, thus obtaining surface-functionalized inorganic general stuffing after reaction; and (3) uniformly mixing the surface-functionalized inorganic general stuffing and an organic resin matrix with a light initiator and finally carrying out photo-curing for 40-120s, thus obtaining the dental restoring resin. The method is simple in preparation technology, easy to operate and suitable to industrial production; the raw materials are cheap in price; and the obtained dental restoring composite resin has a low polymerization-shrinkage ratio and excellent wear-resistant performance and is expected to be used clinically.
Description
Technical field
The invention belongs to tooth section with the preparation field of repair materials, particularly a kind of preparation method take silicon dioxide and cluster thereof as the tooth section resin for restoration of filler.
Background technology
Composite resin is since coming out as teeth repairing material mid-term nineteen sixties, rely on its unique aesthetic beauty, good biocompatibility, excellent physical-mechanical property and the performance such as operating handle and being widely used in labial teeth and the Molar repair treatment easily, and substitute gradually traditional silver amalgam, become the teeth repairing material that welcome by doctor and patient.But such material still comes with some shortcomings at present,, mechanical property higher such as polymerization shrinkage and the problem such as the tooth body does not mate and anti-wear performance is relatively poor in the life-time service process, and these deficiencies have limited such material and have used more widely.
Tooth section repairs composite resin and mainly is comprised of organic matrix, inorganic filler and photoinitiator system, and wherein the factors such as the kind of the composition of organic matrix and inorganic filler, particle diameter, loading are the deciding factors that affects the composite resin material performance.Development along with organic synthesis technology, people are by adopting novel organic matrix that the polymerization shrinkage of composite resin is reduced to about 2%, but the synthetic method of such monomer is comparatively complicated, required reagent is expensive, be unfavorable for large-scale production, so the research and development of inorganic filler have caused that people pay close attention to more widely.Inorganic filler is as the decentralized photo of composite resin, be mainly used in strengthening the physical-mechanical property of composite resin, develop into the little filler of mixing commonly used at present from early stage bulky grain filler, this development so that the performance of composite resin be greatly improved, but the micron order filler in this filler can come off in the life-time service process gradually, thereby form pit at material surface, have a strong impact on the performance attractive in appearance of resin.In recent years, along with the development of nanosecond science and technology in the dental material field, nanocluster and the application in resin for restoration thereof of being constructed by small-particle have obtained paying close attention to widely, and the introducing of this nanocluster structure is expected to give the combination property of material excellence.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method take silicon dioxide and cluster thereof as the tooth section resin for restoration of filler, and this preparation method is simple, is suitable for suitability for industrialized production, and is organic and the inorganic component compatibility is good in the tooth section resin for restoration that obtains.
Of the present invention a kind of take silicon dioxide and cluster thereof as the preparation method of the tooth section resin for restoration of filler, comprising:
(1) preparation of Silica clusters
The preparation of a, functionalized SiO 2
Add silicon dioxide and contain amino coupling agent in ethanol, then mechanical agitation is spent the night under 60 ± 5 ° of C, and reaction is centrifugal after finishing, and uses respectively ethanol and deionized water wash, again in 40 ~ 60 ° of C vacuum drying 14 ~ 18h, gets the silicon dioxide of amino functional;
Add silicon dioxide and carboxylic coupling agent in ethanol, then mechanical agitation is spent the night under 60 ± 5 ° of C, and reaction is centrifugal after finishing, and uses respectively ethanol and deionized water wash, again in 40 ~ 60 ° of C vacuum drying 14 ~ 18h, gets the silicon dioxide of carboxyl-functional;
In ethanol, add silicon dioxide and the coupling agent that contains epoxy radicals, then mechanical agitation is spent the night under 60 ± 5 ° of C, and reaction is centrifugal after finishing, and uses respectively ethanol and deionized water wash, in 40 ~ 60 ° of C vacuum drying 14 ~ 18h, get the silicon dioxide of epoxy radicals functionalization again;
The preparation of b, silica nanometer cluster body
Two kinds in the silicon dioxide of the silicon dioxide of the silicon dioxide of above-mentioned amino functional, carboxyl-functional, epoxy radicals functionalization are dissolved in respectively in the dehydrated alcohol, obtain respectively the dispersion liquid of the two; Then the dispersion liquid with the two mixes, and mechanical agitation at 20 ~ 60 ° of C reaction 24 ~ 32h, in 50 ~ 80 ° of C vacuum drying 12 ~ 24h, namely gets Silica clusters behind the centrifuge washing;
(2) the surface-functionalized inorganic altogether preparation of filler
Silicon dioxide and cluster, amines catalyst (n-propylamine) and double bond containing silane coupler (γ-methacryloxypropyl trimethoxy silane) are added in the cyclohexane solvent, room temperature reaction 20 ~ 60min, stir 30-40min in 60 ± 5 ° of C again, in 60 ± 5 ° of C vacuum drying 18-24h, namely get surface-functionalized inorganic altogether filler behind the removal solvent; The mass ratio of wherein said silicon dioxide and cluster thereof, amines catalyst and double bond containing silane coupler is 5:0.1-0.2:0.5-0.8, the mass ratio 5:1-1:1 of nano silicon and its cluster body in described nano silicon and the cluster thereof;
(3) preparation of light-cured composite
Surface-functionalized inorganic altogether filler, organic resin matrix and light trigger blend is even, namely get light-cured composite (tooth section resin for restoration) behind last photocuring 40 ~ 120s.
The particle diameter of the silicon dioxide described in step (1) a is 20 ~ 100nm.
The amino coupling agent that contains described in step (1) a is specially gamma-aminopropyl-triethoxy-silane, carboxylic coupling agent is specially 3-(3-carboxyl acrylyl amido) propyl-triethoxysilicane, and the coupling agent that contains epoxy radicals is specially γ-glycidyl ether oxygen propyl trimethoxy silicane.
The amount ratio that contains amino coupling agent, carboxylic coupling agent, the coupling agent that contains epoxy radicals and silicon dioxide described in step (1) a is respectively 0.5 ~ 5.0mL:5g, 0.5 ~ 5.0mL:5g, 0.5 ~ 5.0mL:5g.
Two kinds consumption in the silicon dioxide of the silicon dioxide of the amino functional described in step (1) b, the silicon dioxide of carboxyl-functional, epoxy radicals functionalization is respectively 0.5 ~ 3.0g, and the consumption of dehydrated alcohol is 10 ~ 50mL.
The particle diameter of resulting Silica clusters is 0.04 ~ 3.60 μ m among step (1) b.
The organic resin matrix and the surface-functionalized inorganic altogether filler of 40 ~ 80wt% that comprise 20 ~ 60wt% in the light-cured composite described in the step (3).
Organic resin matrix described in the step (3) is take bisphenol-A-glycidyl methacrylate (Bis-GMA) as main monomer, add one or more the composite uses in TEGDMA (TEGDMA), two ethyoxyl bisphenol-A dimethylacrylates (EBPADMA), the carbamate double methyl methacrylate (UDMA), wherein the mass percent of bisphenol-A-glycidyl methacrylate and other acrylic monomers (or monomer sum) is 70:30 ~ 40:60.
Light trigger described in the step (3) is the mixed system of main initiator and aided initiating, and wherein main initiator is camphorquinone (CQ), 2, and the 3-diacetyl (2, a kind of in 3-Butanedione); Aided initiating is a kind of in (dimethylamino)-ethyl benzoate (4-EDMAB), the DMA (N, N-dimethylaniline), and the mass ratio of main initiator and aided initiating is 1:3-5.
Among the present invention the concrete preparation method of light-cured composite be with the organic matrix of different component, through the inorganic filler of modification and light trigger behind manual premix, put it into again mix homogeneously in the three-roll grinder, namely get uncured tooth section reparation composite resin; Behind photocuring 40 ~ 120s, just obtain light-cured composite.
The present invention at first prepares the Silica clusters body by the reaction between the silica surface functional group; Respectively surface modification treatment is carried out in these two kinds of inorganic fillers afterwards, obtain the inorganic filler that reactive group is contained on the surface; At last with these two kinds of fillers as filler altogether for the preparation of photo-curing compound resin used for dental repair.
The present invention adopts silicon dioxide and cluster thereof to prepare photo-curing compound resin used for dental repair as inorganic altogether filler, there is cavity structure in its advantage by the cluster inside that silicon dioxide forms, the adding of nano-sized filler can be filled up the cavity in the cluster body gradually, improve the bulk density of inorganic filler, and then guaranteeing outside the good mechanical performance of material, also can reduce the polymerization shrinkage of composite resin, improve simultaneously the anti-wear performance of material.
The prepared composite resin of the present invention is compared with commercialization composite resin Esthet-X, and the minima of polymerization shrinkage is 2.6%, and the polymerization shrinkage of Esthet-X is up to 3.3%.In addition, the prepared volume attrition value of composite resin after 10,000 wearing and tearing of the present invention is lower than 100 * 10
-3Mm
3, and the volume attrition value of commercialization Esthet-X is up to 126 * 10
-3Mm
3, so the prepared composite resin of the present invention shows good combination property.
Beneficial effect:
(1) preparation method of the present invention is simple, and cost of material is cheap, is suitable for suitability for industrialized production;
(2) composite resin of the present invention shows good combination property, and polymerization shrinkage is lower, and wearability is good.
Description of drawings
Fig. 1 is the SEM figure of the Silica clusters that obtains of embodiment 1;
The polymerization shrinkage figure of Fig. 2 composite resin;
The anti-wear performance figure of Fig. 3 composite resin;
Fig. 4 is the SEM figure of the composite resin cross-section morphology that obtains of embodiment 1.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
The component of table 1 composite resin and the content of each component
| Component | Mass fraction (wt%) |
| Bis-GMA | 14.85 |
| TEGDMA | 14.85 |
| CQ | 0.06 |
| 4-EDMAB | 0.24 |
| Silanized silica | 35 |
| The silanized silica cluster | 35 |
(1) preparation of silica nanometer cluster body
The preparation of a functionalized nano silicon dioxide
(particle diameter is 20 ~ 100nm) to be dispersed to respectively in the ethanol with two parts of 5.0g nano silicons, adding respectively 0.5mL contains the coupling agent (3-(3-carboxyl acrylyl amido) propyl-triethoxysilicane) that amino coupling agent (gamma-aminopropyl-triethoxy-silane) and 0.5mL contain carboxyl and carries out functionalized modification, mechanical agitation is spent the night under 65 ° of C, it is centrifugal respectively after reaction finishes, use again ethanol and deionized water wash, 60 ° of C vacuum drying 16h obtain respectively the silicon dioxide of amino functional and the silicon dioxide of carboxyl-functional.
The preparation of b Silica clusters
Take by weighing respectively the silicon dioxide of amino functional and each 1g of silicon dioxide of carboxyl-functional, the silicon dioxide of two kinds of functionalization is dissolved in respectively is made into corresponding dispersion liquid in the 20mL dehydrated alcohol, silica dispersions with carboxyl-functional dropwise adds in the silica dispersions of amino functional afterwards, mechanical agitation 32h at room temperature, behind the centrifuge washing in 60 ° of C vacuum drying 20h, namely get Silica clusters, particle diameter is 0.04 ~ 3.60um.
(2) the altogether preparation of filler of surface-modified inorganic
5.0g nano silicon and cluster body (the two mass ratio is 1:1), 0.2g amines catalyst (n-propylamine) and the double bond containing silane coupler of 0.8g (γ-methacryloxypropyl trimethoxy silane) are added in the 100mL cyclohexane solvent, room temperature reaction 40min, stir 40min in 60 ° of C again, after removing solvent, dry 24h in 60 ° of C vacuum drying ovens namely gets the inorganic altogether filler through the silane coupler surface modification.
(3) the concrete preparation process of light-cured composite
According to the ratio in table 1 prescription, Bis-GMA, TEGDMA, CQ and 4-EDMAB are pressed corresponding proportion to be mixed, the inorganic altogether filler (silicon dioxide of silane modified processing and cluster thereof) of evenly rear adding to be mixed, manual premix is to inorganic filler during fully by the resin matrix moistening, putting it into the three-roll grinder secondary mixes, in order to obtain the uncured composite resin cream of mix homogeneously, finally by making photo-curing compound resin used for dental repair after the photocuring processing.
Inorganic filler and the light-cured composite sample of preparation carry out dependence test as described below, utilize the Silica clusters bodily form looks of FE-SEM observation post preparation, as shown in Figure 1; Adopt density balance that the composite resin polymerization shrinkage is estimated, the result as shown in Figure 2; Adopt biphase sliding friction instrument that the anti-wear performance of composite resin is estimated, the result as shown in Figure 3; Adopt FE-SEM to observe the composite resin cross-section morphology, the result as shown in Figure 4.
Embodiment 2
The component of table 2 composite resin and the content of each component
| Component | Mass fraction (wt%) |
| Bis-GMA | 14.85 |
| EBPADMA | 14.85 |
| 2,3-diacetyl | 0.06 |
| DMA | 0.24 |
| |
40 |
| The silanized silica cluster | 30 |
(1) preparation of silica nanometer cluster body
The preparation of a functionalized nano silicon dioxide
(particle diameter is 20 ~ 100nm) to be dispersed to respectively in the ethanol with two parts of 5.0g nano silicons, adding respectively 0.5mL contains the coupling agent (3-(3-carboxyl acrylyl amido) propyl-triethoxysilicane) that amino coupling agent (gamma-aminopropyl-triethoxy-silane) and 0.5mL contain carboxyl and carries out functionalized modification, mechanical agitation is spent the night under 65 ° of C, it is centrifugal respectively after reaction finishes, use again ethanol and deionized water wash, 60 ° of C vacuum drying 16h obtain respectively the silicon dioxide of amino functional and the silicon dioxide of carboxyl-functional.
The preparation of b Silica clusters
Take by weighing respectively the silicon dioxide of amino functional and each 1g of silicon dioxide of carboxyl-functional, the silicon dioxide of two kinds of functionalization is dissolved in respectively is made into corresponding dispersion liquid in the 20mL dehydrated alcohol, silica dispersions with carboxyl-functional dropwise adds in the silica dispersions of amino functional afterwards, mechanical agitation 32h at room temperature, behind the centrifuge washing in 60 ° of C vacuum drying 20h, namely get Silica clusters, particle diameter is 0.04 ~ 3.60um.
(2) the altogether preparation of filler of surface-modified inorganic
5.0g nano silicon and cluster body (the two mass ratio is 4:3), 0.2g amines catalyst (n-propylamine) and the double bond containing silane coupler of 0.8g (γ-methacryloxypropyl trimethoxy silane) are added in the 100mL cyclohexane solvent, room temperature reaction 40min, stir 40min in 60 ° of C again, after removing solvent, dry 24h in 60 ° of C vacuum drying ovens namely gets the inorganic altogether filler through the silane coupler surface modification.
(3) the concrete preparation process of light-cured composite
According to the ratio in table 2 prescription, with Bis-GMA, EBPADMA, 2,3-diacetyl and N, accelerine is pressed corresponding proportion and is mixed, to be mixedly add inorganic altogether filler (silicon dioxide of silane modified processing and cluster thereof) after evenly, manual premix puts it into the three-roll grinder secondary and mixes to inorganic filler during fully by the resin matrix moistening, in order to obtain the uncured composite resin cream of mix homogeneously, finally by making photo-curing compound resin used for dental repair after the photocuring processing.
Selecting commercialization resin Esthet-X to organize in contrast describes.The method of testing of the light-cured composite of embodiment 2 is identical with embodiment 1, and the commercialization resin is tested equally.The polymerization shrinkage that records and anti-wear performance are seen respectively Fig. 2 and Fig. 3.
Embodiment 3
The component of table 3 composite resin and the content of each component
| Component | Mass fraction (wt%) |
| Bis-GMA | 14.85 |
| UDMA | 14.85 |
| CQ | 0.06 |
| N, methylphenylamine | 0.24 |
| Silanized silica | 50 |
| The |
20 |
(1) preparation of silica nanometer cluster body
The preparation of a functionalized nano silicon dioxide
(particle diameter is 20 ~ 100nm) to be dispersed to respectively in the ethanol with two parts of 5.0g nano silicons, adding respectively 0.5mL contains the coupling agent (γ-glycidyl ether oxygen propyl trimethoxy silicane) that amino coupling agent (gamma-aminopropyl-triethoxy-silane) and 0.5mL contain epoxy radicals and carries out functionalized modification, mechanical agitation is spent the night under 65 ° of C, it is centrifugal respectively after reaction finishes, use again ethanol and deionized water wash, 60 ° of C vacuum drying 16h obtain respectively the silicon dioxide of amino functional and the silicon dioxide of epoxy radicals functionalization.
The preparation of b Silica clusters
Take by weighing respectively the silicon dioxide of amino functional and each 1g of silicon dioxide of epoxy radicals functionalization, the silicon dioxide of two kinds of functionalization is dissolved in respectively is made into corresponding dispersion liquid in the 20mL dehydrated alcohol, silica dispersions with the epoxy radicals functionalization dropwise adds in the silica dispersions of amino functional afterwards, mechanical agitation 32h at room temperature, behind the centrifuge washing in 60 ° of C vacuum drying 20h, namely get Silica clusters, particle diameter is 0.04 ~ 3.60um.
(2) the altogether preparation of filler of surface-modified inorganic
5.0g nano silicon and cluster body (the two mass ratio is 5:2), 0.2g amines catalyst (n-propylamine) and the double bond containing silane coupler of 0.8g (γ-methacryloxypropyl trimethoxy silane) are added in the 100mL cyclohexane solvent, room temperature reaction 40min, stir 40min in 60 ° of C again, after removing solvent, dry 24h in 60 ° of C vacuum drying ovens namely gets the inorganic altogether filler through the silane coupler surface modification.
(3) the concrete preparation process of light-cured composite
According to the ratio in table 3 prescription, with Bis-GMA, UDMA, CQ and N, accelerine is pressed corresponding proportion and is mixed, the inorganic altogether filler (silicon dioxide of silane modified processing and cluster thereof) of evenly rear adding to be mixed, manual premix is to inorganic filler during fully by the resin matrix moistening, put it into the three-roll grinder secondary and mix, in order to obtain the uncured composite resin cream of mix homogeneously, finally by making photo-curing compound resin used for dental repair after the photocuring processing.
Selecting commercialization resin Esthet-X to organize in contrast describes.The method of testing of the light-cured composite of embodiment 3 is identical with embodiment 1, and the commercialization resin is tested equally.The polymerization shrinkage that records and anti-wear performance are seen respectively Fig. 2 and Fig. 3.
Claims (9)
1. one kind take silicon dioxide and cluster thereof as the preparation method of the tooth section resin for restoration of filler, comprising:
(1) a, in ethanol, add silicon dioxide and contain amino coupling agent, then mechanical agitation is spent the night under 60 ± 5 ° of C, and reaction is centrifugal after finishing, and uses respectively ethanol and deionized water wash, in 40 ~ 60 ° of C vacuum drying 14 ~ 18h, get the silicon dioxide of amino functional again;
Add silicon dioxide and carboxylic coupling agent in ethanol, then mechanical agitation is spent the night under 60 ± 5 ° of C, and reaction is centrifugal after finishing, and uses respectively ethanol and deionized water wash, again in 40 ~ 60 ° of C vacuum drying 14 ~ 18h, gets the silicon dioxide of carboxyl-functional;
In ethanol, add silicon dioxide and the coupling agent that contains epoxy radicals, then mechanical agitation is spent the night under 60 ± 5 ° of C, and reaction is centrifugal after finishing, and uses respectively ethanol and deionized water wash, in 40 ~ 60 ° of C vacuum drying 14 ~ 18h, get the silicon dioxide of epoxy radicals functionalization again;
B, two kinds in the silicon dioxide of the silicon dioxide of the silicon dioxide of above-mentioned amino functional, carboxyl-functional, epoxy radicals functionalization are dissolved in respectively in the dehydrated alcohol, obtain respectively the dispersion liquid of the two; Then the dispersion liquid with the two mixes, and mechanical agitation at 20 ~ 60 ° of C reaction 24 ~ 32h, in 50 ~ 80 ° of C vacuum drying 12 ~ 24h, namely gets Silica clusters behind the centrifuge washing;
(2) silicon dioxide and cluster, amines catalyst and double bond containing silane coupler are added in the cyclohexane solvent, room temperature reaction 20 ~ 60min, stir 30-40min in 60 ± 5 ° of C again, in 60 ± 5 ° of C vacuum drying 18-24h, namely get surface-functionalized inorganic altogether filler behind the removal solvent; The mass ratio of wherein said silicon dioxide and cluster thereof, amines catalyst and double bond containing silane coupler is 5:0.1-0.2:0.5-0.8, the mass ratio 5:1-1:1 of nano silicon and its cluster body in described nano silicon and the cluster thereof;
(3) surface-functionalized inorganic altogether filler, organic resin matrix and light trigger blend is even, behind last photocuring 40 ~ 120s and get final product.
2. according to claim 1 a kind of take silicon dioxide and cluster thereof as the preparation method of the tooth section resin for restoration of filler, it is characterized in that: the particle diameter of the silicon dioxide described in step (1) a is 20 ~ 100nm.
3. a kind of preparation method take silicon dioxide and cluster thereof as the tooth section resin for restoration of filler according to claim 1, it is characterized in that: the amino coupling agent that contains described in step (1) a is specially gamma-aminopropyl-triethoxy-silane, carboxylic coupling agent is specially 3-(3-carboxyl acrylyl amido) propyl-triethoxysilicane, and the coupling agent that contains epoxy radicals is specially γ-glycidyl ether oxygen propyl trimethoxy silicane.
4. according to claim 1 a kind of take silicon dioxide and cluster thereof as the preparation method of the tooth section resin for restoration of filler, it is characterized in that: the amount ratio that contains amino coupling agent, carboxylic coupling agent, the coupling agent that contains epoxy radicals and silicon dioxide described in step (1) a is respectively 0.5 ~ 5.0mL:5g, 0.5 ~ 5.0mL:5g, 0.5 ~ 5.0mL:5g.
5. a kind of preparation method take silicon dioxide and cluster thereof as the tooth section resin for restoration of filler according to claim 1, it is characterized in that: two kinds consumption in the silicon dioxide of the silicon dioxide of the amino functional described in step (1) b, the silicon dioxide of carboxyl-functional, epoxy radicals functionalization is respectively 0.5 ~ 3.0g, and the consumption of dehydrated alcohol is 10 ~ 50mL.
6. according to claim 1 a kind of take silicon dioxide and cluster thereof as the preparation method of the tooth section resin for restoration of filler, it is characterized in that: the particle diameter of resulting Silica clusters is 0.04 ~ 3.60 μ m among step (1) b.
7. according to claim 1 a kind of take silicon dioxide and cluster thereof as the preparation method of the tooth section resin for restoration of filler, it is characterized in that: the organic resin matrix and the surface-functionalized inorganic altogether filler of 40 ~ 80wt% that comprise 20 ~ 60wt% in the light-cured composite described in the step (3).
8. a kind of preparation method take silicon dioxide and cluster thereof as the tooth section resin for restoration of filler according to claim 1, it is characterized in that: the organic resin matrix described in the step (3) is take bisphenol-A-glycidyl methacrylate as main monomer, add one or more the composite uses in TEGDMA, two ethyoxyl bisphenol-A dimethylacrylate, the carbamate double methyl methacrylate, wherein the mass percent of bisphenol-A-glycidyl methacrylate and other acrylic monomers or monomer sum is 70:30 ~ 40:60.
9. a kind of preparation method take silicon dioxide and cluster thereof as the tooth section resin for restoration of filler according to claim 1, it is characterized in that: the light trigger described in the step (3) is the mixed system of main initiator and aided initiating, wherein main initiator is camphorquinone, 2, a kind of in the 3-diacetyl; Aided initiating is (dimethylamino)-ethyl benzoate, N, a kind of in the methylphenylamine, and the mass ratio of main initiator and aided initiating is 1:3-5.
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| CN109199873A (en) * | 2017-07-06 | 2019-01-15 | 北京化工大学 | A kind of inorganic nano-particle cluster body and preparation method thereof for dental repair resin |
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| CN113943519A (en) * | 2021-12-22 | 2022-01-18 | 北京结力能源科技有限公司 | High-durability heavy-duty anticorrosion powder spraying modified resin and preparation method thereof |
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