近几年,国外开发了几种高性能密封材料,并已广泛应用于油田深井、化工、航空航天和核工业等要求密封性能苛刻的场合。国内对这几种新型密封材料的性能报道尚少.本文将较详细地介绍 Aflas、Kalrez、VitonGF 和 Vi-ton AHV 四种含氟密封材料的性能和应用情况。表1是 Aflas、Kalrez、VitonGF 和 Vi-ton AHV 四种材料生胶特性比较。 In recent years, several high performance sealing materials have been developed abroad and have been widely used in demanding applications such as oilfield deep well, chemical industry, aerospace and nuclear industries. Domestic reports on the performance of these few new sealing materials are still scarce.This article will introduce in more detail the performance and application of four fluorine-containing sealing materials of Aflas, Kalrez, VitonGF and Vi-ton AHV. Table 1 shows the comparison of gelatin characteristics of Aflas, Kalrez, VitonGF and Vi-ton AHV.