RTM环氧树脂用新型定位胶黏剂的研制

Study on novel tackifier for RTM

本文研制了一种与3266环氧树脂相匹配的LSD型定位胶黏剂,以应用于复合材料树脂传递模塑技术中预成型体的制备,其主要的特点是仅依靠定位胶黏剂的黏度变化即可起到预定型作用。通过对定位胶黏剂与3266树脂的相容性及其定位效果的分析确定了预成型体的制备工艺,同时研究了加入定位胶黏剂对复合材料层间剪切性能的影响。结果表明,所研制的定位胶黏剂在满足定位效果的同时,可以与基体树脂有很好的相容性,不会对其复合材料制件性能产生明显的影响。

In this paper,a kind of special novel tackifier LSD,which is compatible with epoxy 3266,applied on RTM tachnique for manufacturing polymer matrix composite was developed,whose main characteristic is the shape-fixing property could be achieved only by viscosity change of the tackifier.By researching compatibility between the tackifier and its matching matrix resin and the shape-fixing effect,the optimum processing condition was determined.In addition,the interlaminar shear strength of composite was investigated to study the influence brought by applying the tackifier.The results show that the tackifier has a good shape-fixing effect;at the same time,it would be well compatible with the epoxy 3266,therefore would not bring obviously negative influences on the performance of composite.