Effects of Thermal Treatment on the Morphology and Properties of CSM/Poly(urethane-isocyanurate) Composites Formed by SRIM Process

摘要：

Fiberglass continuous strand mat(CSM)/poly(urethane-isocyanurate) composites were formed by SRIM process, treated under different conditions and then characterized based on dynamic mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM),transmission electron microscopy (TEM) and the mechanical property tests. The results show that the mechanical properties of the composites could be increased with improving the degree of microphase separation. At a given temperature (120℃), the degree of microphase separation is the highest for 4h and decreases gradually with prolonging treatment time. For a given time (4h), the well microphase-separated morphology is obtained and the degree of microphase mixing is increased at 120℃ and 140℃ treatments, respectively. The degree of microphase separation of the composites decreases with enhancing the temperature to 140℃.

关键词： Structural reaction injection molding(SRIM) Poly(urethane-isocyanurate) thermal treatment ?Microphase separation

作者: Hong-yan TANG Ji-hui WANG Guo-qiang GAO

作者单位: Materials Science and Engineering College, Wuhan University of Technology, Wuhan 430070, China Institute of Beijing Composite Materials, Beijing 102101,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）