Creep Characteristics of Liquid Crystal Polymer Film

Abstract

This paper studies the creep characteristic of a liquid crystal polymer (LCP) thin film. Tensile creep tests were performed using three directional specimens at three testing temperatures. Creep curves consisted of mainly transient creep and almost no steady and accelerated creep stages were found. The minimum creep strain rate and rupture lifetime were significantly influenced by the specimen direction and testing temperature. This paper developed a new method of correlating the minimum creep strain rate independent of the specimen direction and testing temperature. This paper also developed a correlation method of creep rupture lifetime independent of the specimen direction and testing temperature.