90℃固化环氧预浸料的研制与性能  

The Study of 90℃ Curing Epoxy Prepreg

作　　者：李树茂[1] 董鹏[1] 王明寅[1] 林再文[1] 高赫[1] 

机构地区：[1]哈尔滨玻璃钢研究院,哈尔滨150036

出　　处：《纤维复合材料》2014年第1期34-38,共5页Fiber Composites

摘　　要：开发了一种可以在90℃固化并适用于热熔法制备预浸料的环氧树脂体系。树脂体系在不同温度下的粘度表明树脂体系具有良好的流动性能,通过差示扫描量热仪(DSC)确定树脂体系的固化工艺为70℃/2 h+90℃/6h。通过研究辊面温度和压力对纤维浸透性的影响及树脂的性能,确定了制备预浸料的工艺参数。T700碳纤维预浸料具有良好的工艺性能,其弯曲强度达1 408 MPa,剪切强度达73 MPa。An epoxy system,could be cured at 90℃,was prepared for hot-melt prepreg. Figure of viscosity of resin system in different temperature and DSC curves showed that the resin system has towardly flowability,the cure cycle was confirmed by DSC,70℃ /2 h ﹢ 90℃ /6 h. The prepreg has favorable process and mechanical properties,the flexure strength was 1 408 MPa and short beam shear strength was 73 MPa.

关 键 词：复合材料 预浸料 热熔 中温固化 低粘度 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]