研究了聚乙二醇(PEG)作为络合剂的负载型铂催化剂的制备及其催化苯乙烯与三乙氧基硅烷硅氢加成反应的反应规律,考察了温度、催化剂用量、载体粒度等因素对催化活性的影响。结果表明,该催化反应在50℃、投料比为1∶1、催化剂铂含量为2.6×10-5mol.g-1时,三乙氧基硅烷的转化率可达90%,反应无明显诱导期,催化剂性能稳定,回收使用3次无明显失活。 The preparation of supported platinum catalyst with polyethylene glycol (PEG) as complexing agent and its reaction rules for the hydrosilylation reaction of styrene with triethoxysilane were studied. The effects of temperature, catalyst dosage, carrier particle size, etc. Effect of Factors on Catalytic Activity. The results showed that the conversion of triethoxysilane reached 90% at 50 ℃, the feed ratio was 1: 1 and the platinum content was 2.6 × 10-5mol.g-1. The reaction had no obvious induction period , The catalyst performance is stable, no significant inactivation was recovered after 3 times of recovery.