采用钛酸脂偶联剂活化硅藻土颗粒表面并探讨其活化机理，制备了甲基乙烯基硅橡胶/硅藻土复合材料。通过扫描电子显微镜(SEM)对硅藻土表面和复合材料断口进行表征。研究了纯硅橡胶和复合材料的压缩性能，初步分析了压缩变形机理。结果显示，活化后硅藻土的平均活化度为98%，硅藻土含量为30%时复合材料的压缩变形回弹量最大。
The surface of diatomite particles was modified using titanate coupling agent and the activation mech-anism was discussed,the composite materials were fabricated with methyl vinyl silicone rubber and diatomite. The diatomite surface and fracture of composite materials were charactered by SEM.The compression proper-ties of simple silicone rubber and composite materials were researched.The results showed that the average ac-tivation grade of diatomite particles modified was 98%,the maximum compression deformation springback of composite materials was obtained while the content of diatomite was up to 30%.
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