High temperature tribological behaviors of superfine kaolin in colza oil were tested with SRV machine,and wear surface was observed by surface profiler.

Based on the nature and structure of kaolin,the author introduced two major processing and preparation methods of ultra-fine kaolin,meanwhile elaborated on the present researches about its intercalation in our country as well as the latest breakthrough concerning the other materials.

Application of superfine active kaolin in carcass ply compound of bias ply truck tire;

Sulfur fixing and kinetics of CaO-kaolin complex reagent;