CN103342816B - A kind of organic siliconresin and curable organopolysiloxane composition and application - Google Patents

A kind of organic siliconresin and curable organopolysiloxane composition and application Download PDF

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CN103342816B
CN103342816B CN201310245790.5A CN201310245790A CN103342816B CN 103342816 B CN103342816 B CN 103342816B CN 201310245790 A CN201310245790 A CN 201310245790A CN 103342816 B CN103342816 B CN 103342816B
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organic siliconresin
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CN103342816A (en
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郑海庭
何海
唐渝
朱经纬
黄光燕
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Guangzhou Huigu New Materials Technology Co ltd
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HUIGU CHEMCIAL CO Ltd GUANGZHOU
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Abstract

The invention discloses a kind of organic siliconresin and curable organopolysiloxane composition and application.The structural formula of this organic siliconresin forms shown in formula I.The organo-silicon compound in this organic siliconresin and a part with at least 2 hydrogen being combined with silicon atom are mixed, obtains curable organopolysiloxane composition.This curable organopolysiloxane composition is applied on emitting semiconductor encapsulates, and has the advantage that splendid adhesive property, stronger hardness, excellent impact resistance, transparency are high, variable color is little in heat resistant test, luminous efficiency is high, be unlikely to be peel off in thermal shock is tested and show outstanding cementability in PPA and metal adhesive experiment.R1R2 2SiO(R3SiO3/2)a(SiO4/2)b(R4 2SiO)c OSiR2 2R1Formulas I.

Description

A kind of organic siliconresin and curable organopolysiloxane composition and application
Technical field
The present invention relates to a kind of binding agent, particularly to a kind of organic siliconresin and curable organopolysiloxane Compositions and application.
Background technology
Traditional electronic/electrical device sealing and curing and the curable resin composition of bonding employing are frequently with curable Composition epoxy resin, to obtain the curing materials of high rigidity, the high grade of transparency and low-thermal-expansion.But, should Solidfied material excessively rigidity, thermal expansion in the curing process is tended to produce big in electronic/electrical device components interior Stress makes to occur inside cured product crackle.It addition, in the high power electronic/electric component application of big electric current Producing substantial amounts of thermal capacitance easily makes the solidfied material of composition epoxy resin turn yellow, and affects luminous efficiency.
In order to reduce stress and improve the deficiencies such as solidfied material xanthochromia, it is thus proposed that utilize organopolysiloxane group Compound prepares the resin material with the high grade of transparency and low stress, such as Japan by hydrosilylation Patent application JP2002-327126 and JP2002-338833 proposes to be contained at least 2 and Si-H by a part Base has the organo-silicon compound of the unsaturated double-bond of reactivity, containing at least 2 Si-H bases in a part Silicon compound, the emitting semiconductor that hydrosilylation catalyst is formed is coated to protection resin combination.But The solidfied material hardness of these silicon-types is not enough, lacks the caking property between metal/plastic, uses this material During encapsulation semiconductor device, during thermal shock experiment at-40~120 DEG C, organic siliconresin easily from metal or Peel off on person's plastic material.
It is proposed further and utilizes the compositions of epoxy resin and organic siliconresin to prepare curing materials, with Comprehensively both advantages.Japanese patent application JP2006-041927 utilizes the organic poly-silica containing vinyl Alkane, organic hydrogen polysiloxanes, addition reaction catalyst and containing epoxy radicals and/or the organic poly-silica of alkoxyl Alkane, prepares and has high rigidity, the high grade of transparency, thermostability and sunproof cured article, and from wet Thermal environment will not become white casse shape when returning to room temperature at once.Chinese patent application CN101155792B Utilize specific chemical structural formula: every a part has the organopolysiloxane of at least two epoxy-functional, Utilize the diorganosiloxane with ad hoc structure formula, for the firming agent of epoxy resin, prepare tool There is the cured product of excellent caking property and curing characteristics and excellent flexibility.
But, epoxy resin derived above/organosilicon resin composition curing materials is bonding with PPA/ metal Power is not enough, still easily peels off from substrate under thermal shock;Especially on the substrate that PPA purity is the highest Peeling rate is higher.
Summary of the invention
The primary and foremost purpose of the present invention is that the shortcoming overcoming prior art is with not enough, it is provided that a kind of organic siliconresin And preparation method thereof.
Another object of the present invention is to provide the curable organopolysiloxane group containing above-mentioned organic siliconresin Compound and preparation method thereof.
It is still another object of the present invention to provide the application of described curable organopolysiloxane composition.
The purpose of the present invention is achieved through the following technical solutions: a kind of organic siliconresin, and structural formula forms such as Formulas I Shown in:
R1R2 2SiO(R3SiO3/2)a(SiO4/2)b(R4 2SiO)c OSiR2 2R1
Formulas I;
In Formulas I, each R1Representation hydroxy, amino, carboxyl, alkoxyl, epoxy radicals, alkenyl independently Or halogen isoreactivity group, particularly preferred hydroxyl, carbon number are alkenyl or the carbon number of 1~10 It it is the epoxy radicals of 1~10;More preferably at least one R1For hydroxyl;Wherein, R1In hydroxyl, alkenyl and Epoxy radicals is obtained by hydrolyzable silane hydrolyzate, and amino, carboxyl, alkoxyl and halogen are by obtaining after hydrolysis To polysiloxanes react further and obtain;Reactive group R1The content in component A preferably 0.1~ 10%(mol/mol), particularly preferably 0.5~2%(mol/mol);During less than 0.1%, solidfied material hardness is inclined Low, and during more than 10%, solidfied material toughness declines a lot;
Each R2Represent the replacement (hydrogen referring on alkyl is to be replaced) that carbon number is 1~10 independently Or non-substituted monovalent hydrocarbon, or the alkoxyl that carbon number is 1~10, including methyl, ethyl, propyl group, Isopropyl, butyl, isobutyl group, the tert-butyl group, amyl group, neopentyl, hexyl, cyclohexyl, phenyl, toluene Base (main chain and benzene are joined directly together), xylyl, naphthyl, benzyl (main chain and methyl are joined directly together), Phenethyl, phenylpropyl, vinyl, pi-allyl, acrylic, isopropenyl, cyclobutenyl, hexenyl, first Epoxide, ethyoxyl, propoxyl group, isopropoxy, butoxy, isobutoxy and tert-butoxy;Preferably carbon Atomic number is the substituted or non-substituted monovalent hydrocarbon of 1~3, or the alkoxyl that carbon number is 1~2;More It is preferably methyl;
Each R3Represent the substituted or non-substituted monovalent hydrocarbon that carbon number is 1~10 independently, or carbon is former Subnumber is the alkoxyl of 1~10, including methyl, ethyl, propyl group, isopropyl, butyl, isobutyl group, uncle Butyl, amyl group, neopentyl, hexyl, cyclohexyl, phenyl, tolyl, xylyl, naphthyl, benzene first Base, phenethyl, phenylpropyl, vinyl, pi-allyl, acrylic, isopropenyl, cyclobutenyl, hexenyl, Methoxyl group, ethyoxyl, propoxyl group, isopropoxy, butoxy, isobutoxy and tert-butoxy;Preferably Carbon number is the substituted or non-substituted monovalent hydrocarbon of 1~6, or the alkoxyl that carbon number is 1~2; More preferably methyl or phenyl;
Each R4Represent substituted or non-substituted monovalent hydrocarbon that carbon number is 1~10 individually, containing epoxy The substituent group of group or the alkoxyl that carbon number is 1~10, including methyl, ethyl, propyl group, isopropyl, Butyl, isobutyl group, the tert-butyl group, amyl group, neopentyl, hexyl, cyclohexyl, phenyl, tolyl, diformazan Phenyl, naphthyl, benzyl, phenethyl, phenylpropyl, vinyl, pi-allyl, acrylic, isopropenyl, Cyclobutenyl, hexenyl, methoxyl group, ethyoxyl, propoxyl group, isopropoxy, butoxy, isobutoxy, Tert-butoxy, 2-epoxy ethyl, 2,3-glycidoxy, γ-(2,3-epoxypropyl) propyl group and β-(3,4 Epoxycyclohexyl)-ethyl or 2-oxetanyl;Preferably carbon number be 1~6 substituted or non-substituted Monovalent hydrocarbon, or the substituent group containing epoxide group;More preferably phenyl, methyl, vinyl or epoxy ethyl;
R2、R3And R4In at least contain 1 unsaturated monovalent hydrocarbon, in order to silicon hydrogen generation additive reaction, Improve the mechanical performance of cured product;
The compound represented in Formulas I meets 0.2≤a≤0.9,0≤b≤0.2,0.1≤c≤0.8, and a+b+c=1; Particularly preferred 0.3≤a≤0.7,0≤b≤0.1,0.2≤c≤0.7;A, b and c represent that it is at main chain (i.e. (R3SiO3/2)a(SiO4/2)b(R4 2SiO)cMole percent in);
The viscosity of described organic siliconresin has no particular limits, but recommendation range of viscosities at 25 DEG C is 50~1000000mPa s, preferably at 25 DEG C, range of viscosities is 200~100000mPa s, the most excellent Being selected in range of viscosities at 25 DEG C is 500~50000, will become to be difficult to operate when viscosity exceedes the upper limit, and viscosity is low When lower limit, the mechanical performance of cured product will decline;At more preferably 25 DEG C range of viscosities be 6000~ 20000。
The preparation method of described organic siliconresin, comprises the steps of:
1. it is the mixed in hydrochloric acid of 37% by tetraethyl orthosilicate, ethanol and mass percent, reaction;
2. phenyltrimethoxysila,e is added, reaction;
3. aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane and 3-glycidyl ether are added Epoxide hydroxypropyl methyl diethoxy silane, back flow reaction;
4. add tetramethyl divinyl disiloxane, continue back flow reaction;
5. take the organic layer in the product that 4. step obtains, with water, organic layer is washed neutral pH;Add water, Back flow reaction, concentrating under reduced pressure, obtain organic siliconresin;
Wherein, tetraethyl orthosilicate, ethanol, mass percent be 37% hydrochloric acid, phenyltrimethoxysila,e, Aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane, 3-glycydoxy methyl Diethoxy silane and tetramethyl divinyl disiloxane 10.4:30:15:(41.2 in mass ratio~68.3): (24.7~63.7): 7.9:(7.4~14.8): 1.8 proportionings;
Step 1. described in the condition of reaction be preferably 70 DEG C and react 5 minutes;
Step 2. described in the condition of reaction be preferably 70 DEG C and react 15~120 minutes;
Step 3. described in the condition of back flow reaction be preferably 70 DEG C of back flow reaction 15~120 minutes;
Step 4. described in the condition of back flow reaction be preferably 70 DEG C of back flow reaction 60 minutes;
Step 5. described in the condition of back flow reaction be preferably 70 DEG C of back flow reaction 30~60 minutes;
Step 5. described in the specifically comprising the following steps that step of the organic layer taken in the product that 4. step obtains 4. the product obtained pours separatory funnel into, divides and removes sour water layer, obtains organic layer;
Step 5. described in the consumption of the water added in water be equivalent to the 1/10.4 of tetraethyl orthosilicate quality;
Step 5. described in the condition of concentrating under reduced pressure reduce pressure distillation and concentration preferably with vacuum pump;
A kind of curable organopolysiloxane composition, comprises following component:
(A) above-mentioned organic siliconresin, it at least contains 2 alkenyls being bonded with silicon (i.e. thiazolinyl);
(B) a part has the organo-silicon compound of at least 2 hydrogen being combined with silicon atom;
Described curable organopolysiloxane composition, also comprises following component:
(C) platinum group metal series catalysts;
(D) metal-complexing catalytic reaction catalyst;
(E) additive reaction inhibitor.
Component (B) is to have the organo-silicon compound of at least 2 hydrogen being combined with silicon atom in a part, logical The Si-H base crossed in this composition carries out hydrosilylation formation solidification with the unsaturated double-bond in component (A) Thing;The formula of component (B) is as shown in Formula II:
Hd(R5)eSiO(4-d-e)/2
Formula II;
In Formula II, R5For the identical or different substituted or non-substituted monovalent hydrocarbon without unsaturated aliphatic, Preferably carbon number be the substituted or non-substituted monovalent hydrocarbon of 1~6, preferably carbon number be 1~3 take Generation or non-substituted monovalent hydrocarbon, more preferably methyl, ethyl, propyl group, isopropyl, butyl, cyclohexyl, Phenyl, tolyl, xylyl and benzyl etc.;The hydrogen atom position being combined with silicon does not has special restriction, Can also be in centre at the end of molecule;
D and e meets 0.1≤d≤2,0.5≤e≤2, and 0.7≤d+e≤3;
Component (B) is organic hydrogen polysiloxanes, and its consumption is the amount that matching component (A) reaches effectively to solidify, I.e. the Si-H base of component (B) is for the ratio (Si-H/Si-Vi) of the mole of the unsaturated thiazolinyl in component (A) Being 0.5~4.0, preferably 1.0~3.2, the mol ratio of particularly preferred 1.0~2.8 uses;Solidify during less than 0.5 Not exclusively residual unsaturated alkyl makes heat-resisting xanthochromia degradation, and due to residual Si-H base during more than 4.0 Making cured product be easily deformed, the residual quantity of (B) component too much also results in the mechanicalness of cured product in addition Can be deteriorated.
The synthesis of component (B) by siloxanes that degree of functionality is 1~3 and with the siloxanes of Si-H base at sulfur Under the catalysis of acid or hydrochloric acid, hydrolytie polycondensation realizes.
Described degree of functionality be 1~3 siloxanes include dimethyldimethoxysil,ne, dimethyl diethoxy Silane, MTMS, diethyldiethoxysilane, ethyl trimethoxy silane, diisopropyl Base dimethoxysilane, aminomethyl phenyl dimethoxysilane, phenyltrimethoxysila,e and diphenyl dimethoxy Base silane etc.;
The described siloxanes with Si-H base includes methyl dimethoxysilane, 1,1,3,3-tetramethyl two silica Alkane and phenyidimethoxysilane etc.;
The synthetic method of component (B) can refer to the Chemical Industry Press good fortune pine people, and it is " organic that Wang Yilu writes Silicon synthesis technique and products application " preparation method of chapter 7 7.2.2.1 containing hydrogen silicone oil: 30 mass parts Me2HSiOSiHMe2, 50 mass parts PhSi (OMe)3And 30 mass parts Me3SiO(MeHSiO)mSiMe3 Or (MeHSiO)mMixing, the concentrated sulphuric acid adding 7 mass parts mass percents 98% makees catalyst, in room temperature Lower balance 5h, stratification, remove sour water layer, oil reservoir Na2CO3Neutralize 30min, received after filtration Rate reaches 95%(mass fraction) purpose product HMe2Si(MeHSiO)3(PhSiO3/2)7SiMe2H。
Component (C) is to coordinate the platinum group metal series catalysts needed for Si-H addition reaction curing reaction, can enumerate H2PtCl6·mH2O、H2PtCl4·mH2O、K2PtCl6·mH2O、K2PtCl4·mH2O.These catalysis Agent can be used alone, it is also possible to by above-mentioned 2 kinds or above component with the use of.The consumption of catalyst is Aforementioned (A) and the 0.1~1000ppm of (B) constituent mass total amount, preferably 1~the scope of 200ppm Use, more preferably 7ppm.
Component (D) is the metal-complexing catalytic reaction catalyst making epoxy radicals catalyzed ring opening polymerization, specifically may be used List the titanizings such as titanium tetraisopropylate, isooctanol titanium, four n-butyl titaniums, diisopropoxy bis-acetylacetonate titanium Compound, the aluminium compound such as triethyl aluminum, aluminium ethoxide, aluminum isopropylate., aluminium acetylacetonate, diethyl zinc Deng zirconium compoundss such as zinc compound, zirconium-n-butylates;Aforesaid catalyst can be used alone, it is also possible to multiple Above with the use of.The consumption of component (D) catalyst be (A)~(C) constituent mass total amount 0.05~ 10%, preferably 0.1~5%, more preferably 0.4%, during less than 0.05%, curing rate is the slowest, it is possible to the short time In can not obtain completely crued product, during higher than 10%, curing rate is too fast, and solidification may be caused to produce Product light transmittance declines.
Component (E) is additive reaction inhibitor, can enumerate: the phosphorus-containing compounds such as triphenylphosphine, tetramethyl The nitrogen-containing compounds such as ethylenediamine, the sulfur-containing compound such as thiophene, the acetylide such as acetylene alcohols;It is preferably 2- Phenyl-3-butyne-2-alcohol.According to storage stability and heat cure requirement, different structure inhibitor can be selected also Can regulate addition, its consumption is preferably the 0.07% of (A)+(B) constituent mass total amount.
In order to increase the cementability of cured product, intensity, operability, resistance to metachrosis etc. further, In the range of the object of the invention, silane coupler, inorganic reinforcement and filler material, solidification can be added Catalyst-initiator, antioxidant etc..
The preparation method of described curable organopolysiloxane composition, comprises the steps of: (A)~ (E) component mixing final vacuum sloughs bubble, and solidification obtains curable organopolysiloxane composition.
The condition of described solidification, according to operating condition from lower 168 hours to 200 DEG C of room temperature (25 DEG C) 20 minutes is arbitrary, and can carry out the solidification that multistage temperature is different as required.
Described curable organopolysiloxane composition, it is adaptable to the coating guarantor of coating protection emitting semiconductor Protective material uses.As emitting semiconductor, light emitting diode (LED), organic electroluminescent can be listed Original paper (organic EL), laser diode, LED array etc..
The present invention has such advantages as relative to prior art and effect:
(1) curable organopolysiloxane composition that the present invention provides is applied on emitting semiconductor encapsulates, There is the advantages such as splendid adhesive property, stronger hardness and excellent impact resistance.
(2) using the semiconductor light-emitting apparatus of the organic silicon mixed resin combination protection of the present invention, resin has Having high transparency and hardness, in heat resistant test, variable color is little, and luminous efficiency is high, tests at thermal shock In be unlikely to be peel off, and show outstanding cementability in testing with PPA and metal adhesive.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to This.
Embodiment 1
Tetraethyl orthosilicate 10.4g is added flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 41.2g, 70 DEG C React 30 minutes, add aminomethyl phenyl dimethoxysilane 63.7g, methylvinyldimethoxysilane 7.9g With 3-glycidyl ether hydroxypropyl methyl diethoxy silane 7.4g, 70 DEG C are refluxed 60 minutes, add tetramethyl two Vinyl disiloxane 1.8g, continues 70 DEG C and refluxes 60 minutes, pour separatory funnel into, divide and remove sour water layer, have Machine layer is washed with deionized water neutral pH, pours flask into, adds deionized water 1g, and 70 DEG C are refluxed 30 minutes, Vacuum pump decompression distillation and concentration, obtain viscosity at 25 DEG C be 6000mPa s(viscometer detection) resin. Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and obtains following data:1H NMR (δ, ppm, 7-8,280H, Si-Ph, 5.7-6.2,18H, Si-CH=CH2, 0-0.5,144H, Si-Me),13C NMR(δ, ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR (δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR (cm-1, 3300-3400, Si-OH, 890-900, Ep), determine the structure of resin (named resin 1) Formula is as follows:
HOMe2SiO(PhSiO3/2)21(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)35OSi Me2Vi;Wherein, Me is methyl, Ph be phenyl, Ep be epoxy ethyl, Vi be vinyl.
Therefore, a=21/(21+5+3+6+35)=0.3, b=5/70=0.07, c=44/70=0.63.
Embodiment 2
Tetraethyl orthosilicate 10.4g is added flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 68.3g, 70 DEG C React 30 minutes, add aminomethyl phenyl dimethoxysilane 44.2g, methylvinyldimethoxysilane 7.9g With 3-glycidyl ether hydroxypropyl methyl diethoxy silane 7.4g, 70 DEG C are refluxed 60 minutes, add tetramethyl two Vinyl disiloxane 1.8g, continues 70 DEG C and refluxes 60 minutes, pour separatory funnel into, divide and remove sour water layer, have Machine layer washes neutral pH, pours flask into, adds deionized water 1g, and 70 DEG C are refluxed 60 minutes, vacuum water Pump decompression distillation and concentration, obtaining viscosity at 25 DEG C is the resin of 12000mPa s.Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and obtains following data:1H NMR(δ, ppm, 7-8, 280H, Si-Ph, 5.7-6.2,18H, Si-CH=CH2, 0-0.5,102H, Si-Me),13C NMR(δ, Ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR(δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR(cm-1, 3300-3400, Si-OH, 890-900, Ep), determine that the structural formula of resin (named resin 2) is as follows:
HOMe2SiO(PhSiO3/2)35(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)21OSi Me2Vi。
Ibid, a=0.5, b=0.07, c=0.43 are calculated.
Embodiment 3
Tetraethyl orthosilicate 10.4g adds flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 61.9g, 70 DEG C React 30 minutes, add aminomethyl phenyl dimethoxysilane 24.7g, methylvinyldimethoxysilane 7.9g With 3-glycidyl ether hydroxypropyl methyl diethoxy silane 14.8g, 70 DEG C are refluxed 60 minutes, add tetramethyl Divinyl disiloxane 1.8g, continues 70 DEG C and refluxes 60 minutes, pour separatory funnel into, divide and remove sour water layer, Organic layer washes neutral pH, pours flask into, adds deionized water 1g, and 70 DEG C are refluxed 30 minutes, vacuum Water pump decompression distillation and concentration, removal of solvent under reduced pressure and low-boiling point material, obtaining viscosity at 25 DEG C is 20000mPa The resin of s.Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and is counted as follows According to:1H NMR(δ, ppm, 7-8,280H, Si-Ph, 5.7-6.2,18H, Si-CH=CH2, 0-0.5, 60H, Si-Me),13C NMR(δ, ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR(δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR(cm-1, 3300-3400, Si-OH, 890-900, Ep), determine resin (named resin 3) Structural formula is as follows:
HOMe2SiO(PhSiO3/2)49(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)7OSi Me2Vi。
Ibid, a=0.7, b=0.07 and c=0.23 are calculated.
Reactive group R in this embodiment of embodiment 4(1The content in component A be 0.5%)
Tetraethyl orthosilicate 10.4g is added flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 68.3g, 70 DEG C React 15 minutes, add aminomethyl phenyl dimethoxysilane 44.2g, methylvinyldimethoxysilane 7.9g With 3-glycidyl ether hydroxypropyl methyl diethoxy silane 7.4g, 70 DEG C are refluxed 15 minutes, add tetramethyl two Vinyl disiloxane 1.8g, continues 70 DEG C and refluxes 60 minutes, pour separatory funnel into, divide and remove sour water layer, have Machine layer washes neutral pH, pours flask into, adds deionized water 1g, and 70 DEG C are refluxed 60 minutes, vacuum water Pump decompression distillation and concentration, obtaining viscosity at 25 DEG C is the resin of 30000mPa s.Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and obtains following data:1H NMR(δ, ppm, 7-8, 155H, Si-Ph, 5.7-6.2,12H, Si-CH=CH2, 0-0.5,63H, Si-Me),13C NMR(δ, Ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR(δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR(cm-1, 3300-3400, Si-OH, 890-900, Ep), determine that the structural formula of resin (named resin 4) is as follows:
HOMe2SiO(PhSiO3/2)19(SiO4/2)2(EpMeSiO)2(ViMeSiO)3(MePhSiO)12OSi Me2Vi。
Ibid, a=0.5, b=0.05 and c=0.45 are calculated.
Reactive group R in this embodiment of embodiment 5(1The content in component A be 2%)
Tetraethyl orthosilicate 10.4g is added flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 68.3g, 70 DEG C React 2 hours, add aminomethyl phenyl dimethoxysilane 44.2g, methylvinyldimethoxysilane 7.9g With 3-glycidyl ether hydroxypropyl methyl diethoxy silane 7.4g, 70 DEG C are refluxed 2 hours, add tetramethyl two Vinyl disiloxane 1.8g, continues 70 DEG C and refluxes 60 minutes, pour separatory funnel into, divide and remove sour water layer, have Machine layer washes neutral pH, pours flask into, adds deionized water 1g, and 70 DEG C are refluxed 60 minutes, vacuum water Pump decompression distillation and concentration, obtaining viscosity at 25 DEG C is the resin of 4000mPa s.Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and obtains following data:1H NMR(δ, ppm, 7-8, 390H, Si-Ph, 5.7-6.2,30H, Si-CH=CH2, 0-0.5,144H, Si-Me),13C NMR(δ, Ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR(δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR(cm-1, 3300-3400, Si-OH, 890-900, Ep), determine that the structural formula of resin (named resin 5) is as follows:
HOMe2SiO(PhSiO3/2)49(SiO4/2)7(EpMeSiO)4(ViMeSiO)9(MePhSiO)29OSi Me2Vi。
Ibid, a=0.5, b=0.07 and c=0.43 are calculated.
Comparative example 1: same as in Example 2, differs only in a few step backflow, causes R1 different
Tetraethyl orthosilicate 10.4g is added flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 68.3g, 70 DEG C React 30 minutes, add aminomethyl phenyl dimethoxysilane 44.2g, methylvinyldimethoxysilane 7.9g With 3-glycidyl ether hydroxypropyl methyl diethoxy silane 7.4g, 70 DEG C are refluxed 60 minutes, add tetramethyl two Vinyl disiloxane 1.8g continues 70 DEG C and refluxes 60 minutes, pours separatory funnel into, divides and remove sour water layer, have Machine layer washes neutral pH, pours flask, vacuum pump decompression distillation and concentration, removal of solvent under reduced pressure and low boiling into Point material, obtaining viscosity at 25 DEG C is the resin of 8000mPa s.Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and obtains following data:1H NMR(δ, ppm, 7-8,280H, Si-Ph, 5.7-6.2,24H, Si-CH=CH2, 0-0.5,102H, Si-Me),13C NMR(δ, ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR(δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR(cm-1, 3300-3400, Si-OH, 890-900, Ep), determine that the structural formula of resin (named resin 6) is as follows:
ViMe2SiO(PhSiO3/2)35(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)21OSi Me2Vi。
Comparative example 2: same as in Example 2, differs only in and is not added with 3-glycydoxy methyl two Ethoxysilane
Tetraethyl orthosilicate 10.4g is added flask, is sequentially added into dehydrated alcohol 30g and concentration is mass percent The concentrated hydrochloric acid 15g of 37%, 70 DEG C are reacted 5 minutes, rapidly join phenyltrimethoxysila,e 68.3g, 70 DEG C React 30 minutes, add aminomethyl phenyl dimethoxysilane 44.2g and methylvinyldimethoxysilane 7.9g, 70 DEG C are refluxed 60 minutes, add tetramethyl divinyl disiloxane 1.8g and continue backflow 60 minutes, Pouring separatory funnel into, divide and remove sour water layer, organic layer washes neutral pH, pours flask into, adds deionized water 1g, 70 DEG C of backflow 60min, vacuum pump decompression distillation and concentration, removal of solvent under reduced pressure and low-boiling point material, Obtaining viscosity at 25 DEG C is the following structural resin of 10000mPa s.Pass through1H NMR、13C NMR、29Si NMR and FT-IR detects, and obtains following data:1H NMR(δ, ppm, 7-8,280H, Si-Ph, 5.7-6.2,21H, Si-CH=CH2, 0-0.5,93H, Si-Me),13C NMR(δ, ppm, 0-5, Si-CH3, 120-140, Si-CH=CH2, Si-Ph),29Si NMR(δ, ppm, 0-10, SiO1/2, 20-50, SiO, 60-80, SiO3/2, 100-110, SiO4/2), FT-IR(cm-1, 3300-3400, Si-OH), Determine that the structural formula of resin (named resin 7) is as follows:
HOMe2SiO(PhSiO3/2)35(SiO4/2)5(ViMeSiO)6(MePhSiO)21OSi Me2Vi。
Ibid, a=0.52, b=0.08 and c=0.4 are calculated.
By embodiment 1~5 and the resin (title is respectively resin 1~7) of comparative example 1~2 preparation and with Lower composition carries out mixing (each composition is according to the mass fraction) according to the combination shown in table 1:
(A) represent that structural formula is embodiment 1~5 and the resin of comparative example 1~2 preparation;
(B) branched organic hydrogen polysiloxanes HMe is represented2Si(MeHSiO)3(PhSiO3/2)7SiMe2The synthesis of H Method: with reference to the Chemical Industry Press good fortune pine people, Wang Yilu write " organosilicon synthesis technique and product should With " preparation method of chapter 7 7.2.2.1 containing hydrogen silicone oil: 30 mass parts Me2HSiOSiHMe2, 50 mass parts PhSi(OMe)3, and 30 mass parts Me3SiO(MeHSiO)mSiMe3(DOW CORNING MHX-1107), adds The concentrated sulphuric acid of 7 mass parts mass percents 98% makees catalyst, at room temperature balances 5h, stratification, removes Remove sour water layer, oil reservoir Na2CO3Neutralize 30min, obtain yield after filtration and reach 95%(mass fraction) Purpose product, passes through1H NMR(δ, ppm, 7-8,35H, Si-Ph, 4.9,2H, end group Si-H, 4.8,3H, Si-H in chain, 0-0.5,12H, Si-Me) determine that target product is following structure: HMe2Si(MeHSiO)3(PhSiO3/2)7SiMe2H。
(C) addition reaction catalyst: the octanol solution (platinum concentration is 5wt%) of chloroplatinic acid;
(D) curing catalysts of ring-opening polymerisation: aluminum isopropylate.;
(E) inhibitor: 2-phenyl-3-butyne-2-alcohol.
(A)~(E) component mixing final vacuum is sloughed bubble, within 4 hours, gathers organic with 150 DEG C of bakings Silicone composition is heating and curing molding (length × width x thickness=300mm × 300mm × 2mm), outside range estimation See.It addition, measure hot strength, hard according to Japan's JIS K6301 vulcanite physical parameter testing standard Degree and elongation at break.Result is listed in table 1.
The characteristic of curable organosilicon resin combination and solidfied material thereof is measured by method as described below.
[refractive index of curable organosilicon resin combination]
At 25 DEG C, curable organosilicon resin composition refractive index, light source profit is measured by Abbe refractometer With the visible ray of 589nm.
[light transmittance of cured product]
Curable organosilicon resin composition it is clipped between two glass plates and solidifies 4 little at 150 DEG C Time, then by measuring under any wavelength of the visible ray in 400-700nm wave-length coverage Automatic spectrophotometer measures the light transmittance through cured product (thickness 0.2mm) at 25 DEG C.Measurement is worn Crossing combiner and the light transmittance only through glass plate, both differences are the absorbance of cured product.Table 1 Represent under 450nm wavelength, obtain light transmittance.
[hardness of cured product]
Curable organosilicon resin composition is made to form flake by curing molding 4h at 150 DEG C solid Change product.Gained flake cured product is measured by A type or D type viscometer according to JIS K6253 Hardness.
[bonding strength to polyphthalamide (PPA) resin plate]
Two politef-resin partition (length × width x thickness=50mm × 20mm × 1mm) is clipped in two Between individual polyphthalamide (PPA) resin plate (length × width x thickness=80mm × 80mm × 1mm), The remaining space between plate is filled, by fixture fixed assembly also with curable organosilicon resin composition It is placed in hot-air circulatory stove curing molding 4h at 150 DEG C.Cured product is cooled to room temperature, moves Except fixture and partition, and on cupping machine, pull aforementioned polyphthalamide resin in the opposite direction Plate is to measure shearing force.
[bonding strength to sheffield plate]
Two politef-resin partition (length × width x thickness=50mm × 20mm × 1mm) is clipped in two Between individual sheffield plate (length × width x thickness=80mm × 80mm × 1mm), with curable organosilicon tree Oil/fat composition fills the remaining space between plate, by fixture fixed assembly and be placed on hot-air and circulate In stove at 150 DEG C curing molding 4h.Cured product is cooled to room temperature, removes fixture and partition, and Pull aforementioned sheffield plate to measure shearing force on cupping machine in the opposite direction.
[manufacture method of light-emitting semiconductor device]
By the light-emitting semiconductor device with InGaN luminescence chip is filled silicone resin composition, 80 Solidify 1 hour at DEG C, solidify 4 hours at 150 DEG C, thus the light-emitting semiconductor device made.
[thermal shock test]
The light-emitting semiconductor device of use, carries out being-40 DEG C during 300 low temperature, is 120 DEG C during high temperature Cold shock testing, measure outward appearance produce cracking number.
[humidity test and Reflow Soldering experiment excessively]
The light-emitting semiconductor device made in the constant temperature and humidity indoor placement 1000 hours of 85 DEG C/85%RH After, to cross 3 times in reflow soldering apparatus (260 DEG C), be full of cracks generation number and/or the stripping of observing outward appearance produce number.
The evaluation result of above-described embodiment, the coating protection material of comparative example is shown in table 1.
Table 1
Visible, it is right that the curable organopolysiloxane composition of present invention offer is applied in emitting semiconductor encapsulation PPA and metal have splendid adhesive property, stronger hardness and excellent impact resistance.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-mentioned enforcement The restriction of example, the change made, modifies, replaces under other any spirit without departing from the present invention and principle In generation, combine, simplify, all should be the substitute mode of equivalence, within being included in protection scope of the present invention.

Claims (8)

1. an organic siliconresin, it is characterised in that structural formula composition is as shown in the one in Formulas I~V:
HOMe2SiO(PhSiO3/2)21(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)35OSi Me2Vi;
Formulas I;
HOMe2SiO(PhSiO3/2)35(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)21OSi Me2Vi;
Formula II;
HOMe2SiO(PhSiO3/2)49(SiO4/2)5(EpMeSiO)3(ViMeSiO)6(MePhSiO)7OSi Me2Vi;
Formula III;
HOMe2SiO(PhSiO3/2)19(SiO4/2)2(EpMeSiO)2(ViMeSiO)3(MePhSiO)12OSi Me2Vi;
Formula IV;
HOMe2SiO(PhSiO3/2)49(SiO4/2)7(EpMeSiO)4(ViMeSiO)9(MePhSiO)29OSi Me2Vi;
Formula V;
Wherein, Me is methyl, Ph be phenyl, Ep be γ-(2,3-epoxy radicals propoxyl group) propyl group, Vi be vinyl.
2. the preparation method of the organic siliconresin described in claim 1, it is characterised in that comprise the steps of:
1. it is the mixed in hydrochloric acid of 37% by tetraethyl orthosilicate, ethanol and mass percent, reaction;
2. phenyltrimethoxysila,e is added, reaction;
3. aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane and 3-glycydoxy methyldiethoxysilane, back flow reaction are added;
4. add tetramethyl divinyl disiloxane, continue back flow reaction;
5. take the organic layer in the product that 4. step obtains, with water, organic layer is washed neutral pH;Add water, back flow reaction, concentrating under reduced pressure, obtain organic siliconresin;
When described organic siliconresin shown in formula I time, tetraethyl orthosilicate, ethanol, mass percent are hydrochloric acid, phenyltrimethoxysila,e, aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane, 3-glycydoxy methyldiethoxysilane and the tetramethyl divinyl disiloxane proportioning of 10.4:30:15:41.2:63.7:7.9:7.4:1.8 in mass ratio of 37%;
When described organic siliconresin is as shown in Formula II, tetraethyl orthosilicate, ethanol, mass percent are hydrochloric acid, phenyltrimethoxysila,e, aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane, 3-glycydoxy methyldiethoxysilane and the tetramethyl divinyl disiloxane proportioning of 10.4:30:15:68.3:44.2:7.9:7.4:1.8 in mass ratio of 37%;
When described organic siliconresin is as shown in formula III, tetraethyl orthosilicate, ethanol, mass percent are hydrochloric acid, phenyltrimethoxysila,e, aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane, 3-glycydoxy methyldiethoxysilane and the tetramethyl divinyl disiloxane proportioning of 10.4:30:15:61.9:24.7:7.9:14.8:1.8 in mass ratio of 37%;
When described organic siliconresin is as shown in formula IV, tetraethyl orthosilicate, ethanol, mass percent are hydrochloric acid, phenyltrimethoxysila,e, aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane, 3-glycydoxy methyldiethoxysilane and the tetramethyl divinyl disiloxane proportioning of 10.4:30:15:68.3:44.2:7.9:7.4:1.8 in mass ratio of 37%;
When described organic siliconresin shown as a formula V time, tetraethyl orthosilicate, ethanol, mass percent are hydrochloric acid, phenyltrimethoxysila,e, aminomethyl phenyl dimethoxysilane, methylvinyldimethoxysilane, 3-glycydoxy methyldiethoxysilane and the tetramethyl divinyl disiloxane proportioning of 10.4:30:15:68.3:44.2:7.9:7.4:1.8 in mass ratio of 37%.
The preparation method of organic siliconresin the most according to claim 2, it is characterised in that:
Step 1. described in the condition of reaction be 70 DEG C and react 5 minutes;
Step 2. described in the condition of reaction as follows: condition during organic siliconresin shown in formula I~III is 70 DEG C and reacts 30 minutes;Condition when preparing the organic siliconresin shown in formula IV is 70 DEG C and reacts 15 minutes;Condition during organic siliconresin shown in formula V is 70 DEG C and reacts 120 minutes;
Step 3. described in the condition of back flow reaction as follows: condition during organic siliconresin shown in formula I~III is 70 DEG C of back flow reaction 60 minutes;Condition when preparing the organic siliconresin shown in formula IV is 70 DEG C of back flow reaction 15 minutes;Condition during organic siliconresin shown in formula V is 70 DEG C of back flow reaction 120 minutes;
Step 4. described in the condition of back flow reaction be 70 DEG C of back flow reaction 60 minutes;
Step 5. described in the condition of back flow reaction as follows: condition during organic siliconresin shown in formula I, III is 70 DEG C of back flow reaction 30 minutes;Condition when preparing the organic siliconresin shown in Formula II, IV and V is 70 DEG C of back flow reaction 60 minutes;
Step 5. described in the organic layer taken in the product that 4. step obtains specifically comprise the following steps that product step 4. obtained pours separatory funnel into, point remove sour water layer, obtain organic layer;
Step 5. described in the consumption of the water added in water be equivalent to the 1/10.4 of tetraethyl orthosilicate quality;
Step 5. described in concentrating under reduced pressure condition for use vacuum pump decompression distillation and concentration.
4. a curable organopolysiloxane composition, it is characterised in that comprise following component:
(A) organic siliconresin described in claim 1;
(B) a part has the organo-silicon compound of at least 2 hydrogen being combined with silicon atom, as shown in formula A:
Hd(R5)eSiO(4-d-e)/2
Formula A;
In formula A, R5For the identical or different substituted or non-substituted monovalent hydrocarbon without unsaturated aliphatic;
D and e meets 0.1≤d≤2,0.5≤e≤2, and 0.7≤d+e≤3;
The consumption of component (B) is the amount that matching component (A) reaches effectively to solidify.
Curable organopolysiloxane composition the most according to claim 4, it is characterised in that:
Described R5For the substituted or non-substituted monovalent hydrocarbon that carbon number is 1~6;
The Si-H base of component (B) is 0.5~4.0 for the ratio of the mole of the unsaturated thiazolinyl in component (A).
Curable organopolysiloxane composition the most according to claim 5, it is characterised in that also comprise following component:
(C) platinum group metal series catalysts;
(D) the metal-complexing catalytic reaction catalyst of epoxy radicals catalyzed ring opening polymerization is made;
(E) additive reaction inhibitor.
Curable organopolysiloxane composition the most according to claim 6, it is characterised in that
The consumption of component (C) is the 0.1~1000ppm of (A) and (B) constituent mass total amount;
The consumption of component (D) is the 0.05~10% of (A)~(C) constituent mass total amount;
The consumption of component (E) is the 0.07% of (A)+(B) constituent mass total amount;
Component (C) is H2PtCl6·mH2O、H2PtCl4·mH2O、K2PtCl6·mH2O、K2PtCl4·mH2O;
Component (D) is at least one in titanium tetraisopropylate, isooctanol titanium, four n-butyl titaniums, diisopropoxy bis-acetylacetonate titanium, triethyl aluminum, aluminium ethoxide, aluminum isopropylate., aluminium acetylacetonate, diethyl zinc and zirconium-n-butylate;
Component (E) is triphenylphosphine, tetramethylethylenediamine, thiophene or acetylene alcohol compounds.
8. the application in the coating protection material of coating protection emitting semiconductor of the curable organopolysiloxane composition described in claim 4.
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