The Effect of Temperature on Mechanical Properties of Modified Polypropylene

By : Guiqin Li, Jun Wang, Jiemin Feng, Qing Guo, Junlong Zhou, Peter Mitrouchev

Page No: 45-57

Abstract
The mechanical behaviors of five modified polypropylene composites were investigated under the effect of various temperatures. Mechanical properties of polymer were carried out through uniaxial tensile tests for low and high temperatures respectively. The results showed that both yield stress and the elastic modulus of the material decrease with the increase of temperature. The properties are also significantly influenced by the addition and the additive quantity. The addition with glass fiber (GF) manifests higher properties than the other addition, and the modulus and yield stress increase with the increasing of the additive amount. Three models are chosen to fitting with the experiment values in order to understand the mechanical behavior of the polymer. By comparing the proposed simplified model with Gibson model, both are successfully validated by the excellent agreement between model prediction and experimental results.

Authors :
Guiqin Li, Jun Wang and Jiemin Feng : Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, 200072, China
Qing Guo and Junlong Zhou : Shanghai Yanfeng Jingqiao automotive trim systems Co. Ltd, China
Peter Mitrouchev : University Grenoble Alpes, G-SCOP, F-38031, Grenoble, France
 

DOI: https://doi.org/10.32381/JPM.2018.35.01.4