Shape memory effect and mechanical properties of cyanate ester-polybutadiene epoxy copolymer

Abstract

A type of thermal-induced shape memory polymer was fabricated using a new epoxy resin-polybutadiene epoxy (PBEP) and bisphenol A-type cyanate ester in different mass ratios. Mechanical performance, thermal properties, and shape memory behaviors were investigated systematically. This polymer system presented good shape memory properties. The deformation recovery speed increased with the increase in the amount of PBEP. The maximum deformation recovery speed was 0.0128 s−1, and the minimum value was 0.0073 s−1. The deformation recovery rate was almost 100 %.