适用于热熔法制备预浸料的氰酸酯树脂的制备  

Preparation of Cyanate Ester Resin for Hot Melt Impregnation

作　　者：王帆[1] 王家樑[1] 朱亚平[1] 张中云[1] 焦扬声[1] 

机构地区：[1]华东理工大学特种功能高分子材料及其相关技术教育部重点实验室,上海200237

出　　处：《宇航材料工艺》2009年第1期25-28,共4页Aerospace Materials & Technology

摘　　要：为改进纤维增强氰酸酯树脂基复合材料的制备工艺,研制了一种适用热熔法制备预浸料的氰酸酯树脂体系。以旋转黏度计确定了适用热熔法浸渍纤维的树脂黏度为1.5Pa.s/80℃、最佳加工温度为(90±2)℃、工艺适用期为2h。利用DSC及哈克流变仪确定了树脂的固化工艺、纤维增强树脂基复合材料的制备工艺等。结果表明此树脂体系具有良好的热熔加工性能,适宜的工艺适用期,树脂体系在-10℃下贮存6个月后,树脂黏度基本保持不变,应用热熔浸渍法制备的M40J碳纤维/氰酸酯复合材料,具有优异的力学性能,拉伸强度和模量分别为2037MPa和226GPa,弯曲强度和模量分别为1580MPa和217GPa。Cyanate resin for hot melt impregnation was studied to improve the technology of preparation composites. The optimal operating temperature, process time and shelf life of the resin were studied by rotary viscosimeter. DSC and Thermo-Hakko rheometer were used to determine cure technique of the resin and preparation method of composite. The results showed that the resin had good hot melt process performance, the viscosity is 1.5 Pa· s/80℃, the shelf-life is 6 months at - 10℃. The composite of M40J intensified resin system made by hot melt method had excellent mechanical behavior. The tensile strength and modulus are 2 037 MPa and 226 GPa, respectively. The flexural strength and modulus are 1 580 MPa and 217 GPa respectively.

关 键 词：聚合物基复合材料 氰酸酯 M40J碳纤维 

分 类 号：TQ323[化学工程—合成树脂塑料工业] TU765[建筑科学—建筑技术科学]