本课题设计以硅烷偶联剂为原料，反应类型为水解缩合，选用酸、碱，有机锡为催化剂。
The design of this subject: silicon coupling was used as raw material, the reaction type is hydrolytic condensation, acid, alkali and organic tin was used as catalyst.
氧气、水或醇、酸、碱或残留催化剂、硅油、机械外力、填料、聚硅氧烷的链端基等都会影响聚硅氧烷的热稳定性。
Accordingly, the thermal stability of polysiloxanes may be influenced by oxide, water, alcohol, acid, base, residual catalyst, silicone oil, mechanical stress, filler or the end groups of itself.
采用酸-碱交替沉淀法制备了一种新型的低压甲醇合成催化剂。
A new catalyst for methanol synthesis was prepared by alternant precipitation between acid and alkali.
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