【摘要】 探究了Karstedt催化剂和Speier催化剂对于聚醚改性有机硅在不同反应条件下的反应活性。结果表明，结合反应温度、催化剂浓度以及反应物配比三个因素，Karstedt催化剂的催化效果优于Speier催化剂，是一种较优的催化剂。此外，由Karstedt催化剂所得硅氢加成产物无色透明，在成品颜色要求严格的应用中具有更广泛的使用前景。但当反应温度较高时，建议使用Speier催化剂，这是因为Karstedt催化剂在较高的温度下会破坏产物结构，影响催化效果，也会对体系产生其他干扰，具体作用机制仍需深入探讨。更多还原

【Abstract】 The reaction activities of polyether-modified organosilicon under different reaction conditions with Karstedt’s and Speier’s two types of catalysts were investigated. Considering the three factors of reaction temperature, catalyst concentration and reactant ratio, the superior catalytic effect of Karstedt indicates that it is a preferable catalyst choice. Additionally, the silicon-hydrogen addition products catalyzed by Karstedt present a colorless and transparent state, which also broadens its application scenarios in some products with strict color requirements. However, when the reaction temperature is relatively high, Speier’s catalyst should be considered. The use of Karstedt’s catalyst at higher temperatures may destroy its molecular structure, affect the catalytic effect and possibly cause other interferences to the system. The specific mechanism still needs to be explored and summarized in the future.更多还原