碳纤维复合材料发动机壳体用高性能树脂基体的研制

在综合考虑树脂黏度、力学性能、耐热性能的基础上。开发了适用于碳纤维复合材料火箭发动机壳体温法缠绕成型工艺用耐高温和韧性环氧树脂基体。用差示扫描式量热法(DSC)、傅里叶红外光谱FT—IR等分析技术对该韧性树脂基体的固化反应动力学参数、树脂基体固化物的性能和复合材料的性能进行了系统的研究。结果表明，该韧性树脂基体黏度低，适用期长，韧性好，与碳纤维界面粘接强度高，所制得的复合材料火箭发动机壳体纤维强度转化率高。为今后相关方面的研究指明了方向。

Study on High-property Resins Matrix for Carbon Fiber Composite Motor Case

This paper gives the guiding principle for resin matrices selection for rocket motor case of carbon fiber composite material. It shows the achievements in research on epoxy resin matrices with high-temperature resistance and good toughness. Under the consideration of the relations among viscosity,mechanical and heat-resistance properties. The epoxy resin system matrix is designed for the wet-winding of a carbon fiber composite rocket motor case.The curing kinetic parameter,gel time and properties of casting parts and carbon fiber composite were studied by means of DSC,FT-IR,ect. The results show that the formulation of the toughened epoxy resin matrix has low viscosity,longer-life-time and higher toughness,strong interfacial adhesion with the carbon fiber. Since the strength conversion ratio of the carbon fiber is high,it points out the way forward for further improvement on related subject.