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采用KH－550对钛酸铅（PT）粉末进行表面处理，通过对PT／环氧树脂和处理PT／环氧树脂两种压电复合材料的压电应变常数、耐热性和耐冲击强度的测定和对比，研究了界面改性对压电复合材料的压电性能的影响结果表明：通过界面改性，可以明显提高复合材料的耐热性和耐击穿强度，而对饱和极化时的压电应变常数无影响．
The surface of the lead titanate (PT) powder was treated by KH-550. The piezoelectric strain constant, heat resistance and impact resistance of both PT / epoxy and PT / The influence of interfacial modification on the piezoelectric properties of the piezoelectric composites was investigated and compared. The results show that the interfacial modification can significantly improve the heat resistance and the puncture resistance of the composites, Piezoelectric strain constant no effect.