Preparation and Characterization of Polyimide/Multiple-wall Carbon Nanotubes Composites

Abstract

Abstract The PI/MWNTs composites are prepared by using pyromelic dianhydride (PMDA), 3,3’,4,4’-biphenyltetracarboxylic dianhydride (BPDA), 4,4’-diaminodiphenyl ether (ODA) and multi-wall carbon nanotubes (MWNTs) through the ultrasonic in-situ polymerization method. The effect of MWNTs on the molecular structure, mechanical performance and chemical resistance performance are studied. The result shows that the carboxylated long MWNTs could improve the tensile performance of the composites, and the adding of MWNTs will not affect the molecular structure and the chemical resistance performance of polyimide (PI) material.