原位聚合法制备连续纤维增强热塑复合材料研究进展  

Research Progress in the Preparation of Continuous Fiber-Reinforced Thermoplastic Composites by in-situ Polymerization Method

作　　者：伍立军 宋燕 卫星 高丽[1] 杨懿 WU Lijun;SONG Yan;WEI Xing;GAO Li;YANG Yi

机构地区：[1]中国汽车工程研究院股份有限公司,重庆400000

出　　处：《化工设计通讯》2024年第11期141-144,共4页Chemical Engineering Design Communications

基　　金：重庆市汽车轻量化工程技术研究中心科研平台(项目编号011904.05)。

摘　　要：原位聚合法在制备连续纤维热塑复合材料时相比传统热熔法,具有树脂粘度低,与增强纤维在微观尺度能很好地浸润,并在纤维周围原位固化一体化成型,较易制得大制件和形状复杂的热塑性复材制品,且制品具有优异的力学性能而备受行业广泛关注。己内酰胺(PA6)阴离子聚合机理及甲基丙烯酸甲酯单体(MMA)自由基聚合机理的深入研究,并结合拉挤工艺和树脂传递模塑工艺(RTM)特点,近年来原位聚合法制备热塑复合材料引起行业极大兴趣。综述了常见原位聚合树脂基体的聚合特性,并分别论述了其在拉挤工艺和RTM工艺中的实际应用。In situ polymerization method has lower resin viscosity compared to traditional hot melt method in preparing continuousfiber thermoplastic composite materials.It can be well wetted with reinforcingfiber at the microscopic scale and solidified in situ around the fiber for integrated molding.It is easier to produce large and complex shaped thermoplastic composite products,and the products have excellent mechanical properties and have attracted widespread attention in the industry.The in-depth study of the anionic polymerization mechanism of caprolactam(PA6)and the free radical polymerization mechanism of methyl methacrylate monomer(MMA),combined with the characteristics of pultrusion process and resin transfer molding(RTM)process,has attracted great interest in the industry in recent years for the preparation of thermoplastic composite materials by in-situ polymerization method.This article reviews the polymerization characteristics of common in-situ polymerization resin matrices and discusses their practical applications in pultrusion and RTM processes.

关 键 词：原位聚合法 PA6阴离子聚合 MMA自由基聚合 拉挤工艺 树脂传递模塑工艺(RTM) 

分 类 号：TQ325[化学工程—合成树脂塑料工业]