The invention relates to specific boron-hybridized methyl vinyl MQ silicon resin. -O-B-O and-O-Si-O are used as frameworks, and vinyl groups are used as active functional groups. The method comprisesthe following steps: adding 15 parts of orthosilicate, 4-8 parts of methyl alkoxy silane, 5-10 parts of a boric acid derivative, 10-20 parts of dimethyl vinyl chlorosilane and 20 parts of xylene intoa reactor, heating to 70-80 DEG C, adding 10 parts of a 10% acid catalyst, and reacting for 2-4 hours to obtain hydrolysate; adding caustic soda into the hydrolysate to adjust the pH value to 10, heating the hydrolysate to 80 DEG C, carrying out reduced pressure distillation to carry out polycondensation reaction for 1 hour, then adding calcium sulfate, heating to 120 DEG C, and continuing reducedpressure distillation to carry out polycondensation reaction for 1 hour to obtain a polycondensation product; and washing the polycondensation product with deionized water until the polycondensationproduct is neutral, and carrying out vacuum drying to obtain the specific boron-hybridized methyl vinyl MQ silicon resin. The prepared specific boron-hybridized methyl vinyl MQ silicon resin has a better tackifying effect than traditional tackifying resin, and has a self-flame-retardant effect.
本发明涉及一种特定硼杂化甲基乙烯基MQ硅树脂,以‑O‑B‑O、‑O‑Si‑O为骨架,以乙烯基为活性官能团,其制备方法为:向反应器中加入15份正硅酸酯、4~8份甲基烷氧基硅烷、5~10份硼酸衍生物、10~20份二甲基乙烯基氯硅烷、20份二甲苯,加热至70℃~80℃,然后加入10份10%酸催化剂,反应2~4小时得水解液;向水解液中加入烧碱调至pH=10,加热水解液至80℃,减压蒸馏进行缩聚反应1h,然后加入硫酸钙,升温至120℃继续减压蒸馏进行缩聚反应1h,得缩聚产物;用去离子水洗涤缩聚产物至中性,真空干燥得所述的特定硼杂化甲基乙烯基MQ硅树脂。制成的特定硼杂化甲基乙烯基MQ硅树脂增粘效果较传统增粘树脂效果好、具有自阻燃效果。
Specific boron-hybridized methyl vinyl MQ silicon resin and application thereof
一种特定硼杂化甲基乙烯基MQ硅树脂及其应用
2020-07-24
Patent
Electronic Resource
Chinese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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