摘要
文摘研制开发出了一种低黏度、高活性、高性能的室温RTM成型用树脂体系——R602,其凝胶温度为105℃,固化温度125℃,后处理温度175℃,Tg为178℃;该树脂体系室温黏度较低,适用期在50 h以上;固化产物和复合材料具有优异的综合力学和抗吸水性能,树脂的拉伸强度为97.2 MPa,断裂延伸率为4.12%,弯曲强度为162.6 MPa。SEM结果显示R602树脂体系对纤维具有很好的浸润性。
This paper introduce a new R602 resin system for room temperature RTM process, which have lowviscosity, high reaction activity and good properties. The resin began to gel at 105℃, to cure at 125℃ and to handle for better properties at 175℃, the gs is 178℃. R602 resin system have low viscosity at room temperature and its potlife is more than 50 hour. The cured resin and composites of R602 resin system also exhibit excellent mechanical prop- erties and hygroscopic resistance property. The tensile strength of the cured product is 97.2 MPa, fracture elongation percentage is 4.12%, and flexural strength is 162.6 MPa. In addition, the SEM reveal that the impregnation of the R602 resin to fiber is very good.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2014年第6期49-51,共3页
Aerospace Materials & Technology
