The Thermal Properties, Mechanical Performances and Crystallization behaviors of Poly(aryl Ether Ketone) Copolymers by the effect of Ether/Ketone Ratio

By : Zhihui Huang, Jiamiao Chen, Yanping Huo, Jingwei Zhao

Page No: 257-269

Abstract
The effect of the ether/keto ratios on the thermal properties, mechanical performances and crystallization behavior of the Poly(aryl ether ketone)s (PAEK) were investigated. A formula was proposed the estimate the melting temperatures of the PAEKs with high accuracy. Glass transition temperatures were affected by the ether/keto ratios and molecular weights, and were related with the brittle-tough transition of the PAEKs. Mechanical performances of tensile, impact, flexural and compressive strength decreased with the increase of ether/keto ratios, while elongation had a trend of increase. The non-isothermal crystallization curves exhibited well linearity when treated with Jeziorny’s model, and two crystallization processes were found. The activation energies of the PAEKs were calculated to be 550~580 KJ/mol by Doyle’s method. All the PAEKs exhibited spherulites and their sizes decreased with the increase of ether/keto ratios.

Authors :
Jiamiao Chen
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China.

Yanping Huo
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China.

Jingwei Zhao
Guangzhou Tinci Materials Technology Co., Ltd, Guangzhou, China.
 

DOI: https://doi.org/10.32381/JPM.2021.38.3-4.7