Vinylphenyl silicon resin

A vinyl phenyl and vinyl alkoxy silane technology, applied in the field of vinyl phenyl silicone resin, can solve the problems of poor resin stability and large pollution, and achieve stable product structure and quality, easy operation, The effect of facilitating industrialization

Active Publication Date: 2013-01-23
九江润禾合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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Method used

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Examples

Experimental program
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Effect test

Embodiment l

[0027] Into a 3000ml glass kettle, add 300ml of water, 500ml of toluene, 300ml of ethanol, MM20g, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane 70g, concentrated hydrochloric acid (36.5wt% ) 20g, stirred rapidly at 40°C, and added dropwise an ethanol solution of 1000g of phenyltrimethoxysilane and 60g of methylphenyldimethoxysilane. Hydrolyze for 3 hours, then raise the temperature to 70°C and reflux for 5 hours, then stop the reaction, let the layers stand, remove the oil agent in the lower layer, neutralize it with aqueous sodium bicarbonate solution, wash it with deionized water until it is neutral, and use anhydrous chlorinated Calcium dries until clear and transparent. Add 20 g of silazane, react at 80°C for 3 hours, then raise the temperature, pull it down to 150°C under high vacuum -0.099Mpa for 6 hours, remove low boilers, and obtain 807g of clear and transparent vinyl phenyl silicone resin . The obtained product has a refractive index of 1.5145, a viscosity of 3300 ...

Embodiment 2

[0029]In a 3000ml glass kettle, add 300ml of water, 500ml of toluene, 300ml of ethanol, 100g of MM, 150g of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane, concentrated hydrochloric acid (36.5wt%) ) 20 g, stirred rapidly at 40° C., and added dropwise 900 g of phenyltrimethoxysilane and 20 g of ethyl orthosilicate in ethanol. Hydrolyze for 3 hours, then heat up to 70°C and reflux for 5 hours, then stop the reaction, let stand to separate layers, remove the oil agent in the lower layer, neutralize it with aqueous sodium bicarbonate solution, add KOH 30 g, react at 80°C for 3 hours, cool down, and use Wash with deionized water until neutral, and dry with anhydrous calcium chloride until clear and transparent. Then the temperature was raised, and the temperature was lowered to 150°C under high vacuum -0.099Mpa for 6 hours to remove the low boilers, and 827g of vinyl phenyl silicone resin was obtained as a clear and transparent product. The obtained product had a refractive index of 1....

Embodiment 3

[0031] Into a 3000ml glass kettle, add water 300ml, toluene 500ml, ethanol 300ml, MM30g, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane 170g, concentrated hydrochloric acid (36.5wt% ) 22g, stirred rapidly at 40°C, and added dropwise an ethanol solution of 800g of phenyltrimethoxysilane and 150g of methylphenyldimethoxysilane. Hydrolyze for 3 hours, then raise the temperature to 70°C and reflux for 5 hours, then stop the reaction, let the layers stand, remove the oil agent in the lower layer, neutralize it with aqueous sodium bicarbonate solution, wash it with deionized water until it is neutral, and use anhydrous chlorinated Calcium dries until clear and transparent. Add 20 g of silazane, react at 80°C for 3 hours, then raise the temperature, pull it down to 150°C under high vacuum -0.099Mpa for 6 hours, remove low boilers, and obtain 840g of clear and transparent vinyl phenyl silicone resin . The obtained product had a refractive index of 1.5356, a viscosity of 5358 mPa.s, a...

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Abstract

The invention relates to an organic silicon resin, particularly a vinylphenyl silicon resin. The vinylphenyl silicon resin is prepared by the following steps: 1) adding water into a kettle, and adding a solvent; 2) adding a blocking agent, stirring, and adding an acidic catalyst; 3) stirring the mixed solution at normal temperature, dropwisely adding an ethanol solution of one or more of phenyl alkoxy silane, vinyl alkoxy silane and ethyl orthosilicate at 0-60 DEG C; 4) after finishing the dropwise addition, hydrolyzing for 30-600 minutes; 5) standing for 5-30 hours to stratify; and 6) treating a condensation additive for an oil solution, and removing low boilers, thereby obtaining the product vinylphenyl silicon resin. The method is simple to operate, and is beneficial to the stability of the product structure and quality.

Description

technical field [0001] The invention relates to a silicone resin, specifically vinyl phenyl silicone resin. Background technique [0002] Compared with incandescent lamps and fluorescent lamps currently used, LED is a lighting method that is more energy-saving, environmentally friendly and requires higher technical requirements. Its power consumption is only 1 / 10 of these traditional light sources, and it does not use mercury that seriously pollutes the environment. , small in size and long in life, it is expected to become the fourth-generation light source after incandescent lamps, fluorescent lamps, and high-intensity gas discharge lamps. It can be said that the development of high-brightness LED is a revolutionary breakthrough in lighting technology. [0003] At present, the packaging material of ordinary LEDs is mainly transparent epoxy resin. With the development of white LEDs, packaging materials are required to maintain high transparency in the visible light regio...

Claims

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Application Information

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IPC IPC(8): C08G77/20C08G77/06C08G77/08H01L33/56
Inventor 易有彬
Owner 九江润禾合成材料有限公司
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