High performance organosilicon epoxy material, preparation method and applications thereof
An organosilicon epoxy and cyclosiloxane technology, applied in epoxy resin coatings, epoxy resin adhesives, organic insulators, etc., can solve the problems of failing to take into account material transmittance, poor compatibility, and large interfacial tension.
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Embodiment 1
[0052] The preparation method of silicone epoxy material is as follows:
[0053] (1) Preparation of end-capped epoxy cyclosiloxane: add 0.5mol (90.1g) 1,3,5-trimethylcyclosiloxane to a round-bottomed flask equipped with a stirrer, reflux condenser, thermometer, and nitrogen port Trisiloxane C 3 h 12 o 3 Si 3 (provided by Beijing Huawei Ruike Chemical Co., Ltd.), 1.0mol (114.1g) allyl glycidyl ether (CH 2 =CHCH 2 OCH 2 CHCH 2O, provided by Energy Chemical) and 100ml cyclohexane, feed high-purity nitrogen into the reactor at room temperature and stir evenly, then gradually heat up to 70°C, and slowly add 0.4ml dropwise after the temperature is constant. 1g / 160ml of tetrahydrofuran solution of chloroplatinic acid was used as a catalyst. After the dropwise addition, it was reacted for 8 hours, and 59.3g of end-capping agent n-butanol and 0.15ml of the above-mentioned tetrahydrofuran solution of chloroplatinic acid were added to the reactor, and the reaction was continued fo...
Embodiment 2
[0058] The preparation method of silicone epoxy material is as follows:
[0059] (1) Preparation of end-capped epoxy cyclosiloxane: add 0.5mol (120.2g) 1,3,5,7-tetramethyl to a round bottom flask equipped with a stirrer, reflux condenser, thermometer, and nitrogen port Cyclotetrasiloxane C 4 h 16 o 4 Si 4 (Quzhou Ruilijie Chemical Co., Ltd. provides), 0.5mol (62.1g) 1,2-epoxy-4-vinyl epoxycyclohexane ( CH 2 = CHC 6 h 9 O, provided by Sigma Aldrich) and 150ml of xylene, feed high-purity nitrogen into the reactor at room temperature and stir evenly, then gradually heat up to 60°C, after the temperature is constant, slowly add 3.22ml of platinum chloride with a concentration of 1g / 160ml Acid isopropanol solution is used as a catalyst, and after the dropwise addition is completed, after reacting for 2 hours, add 176.7g of end-capping agent 1-heptene and 2.52ml of the above-mentioned isopropanol solution of chloroplatinic acid in the reactor, and continue to react for 6 hou...
Embodiment 3
[0065] The preparation method of silicone epoxy material is as follows:
[0066] (1) Preparation of end-capped epoxy cyclosiloxane: add 0.5mol (180.4g) 1,3,5,7,9 in a round bottom flask equipped with a stirrer, reflux condenser, thermometer, nitrogen port, 11-Hexamethylcyclohexasiloxane C 6 h 24 o 6 Si 6 (provided by Kingston Chemistry), 3.5mol (434.63g) 1,2-epoxy-4-vinylcyclohexane (CH 2 = CHC 6 h 9 O, Provided by Sigma Aldrich) and 100ml of toluene, feed high-purity nitrogen into the reactor at room temperature and stir evenly, then gradually heat up to 100°C, and add 0.10ml of dicyclopentadiene dichloride with a concentration of 1g / 160ml dropwise after the temperature is constant Platinum ethanol solution was used as a catalyst. After 24 hours of reaction, 20.0 g of capping agent ethanol and 0.01 ml of the above-mentioned dicyclopentadiene platinum dichloride ethanol solution were added to the reactor, and the solvent toluene and excess unreacted 1 , 2-epoxy-4-viny...
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