高强中模碳纤维增强高耐热双马树脂复合材料性能  

Properties of High Strength Medium Modulus Carbon Fiber Reinforced High Heat Resistant Bismaleimide Composites

作　　者：樊虎 王超 左小彪[2] 周金岑 尚呈元[2] FAN Hu;WANG Chao;ZUO Xiaobiao;ZHOU Jincen;SHANG Chengyuan(The Third Miltary Representative Office in Beijing of The Air Force Equipment Department,Beijing 100076;Aerospace Research Institute of Materials&Processing Technology,Beijing 100076)

机构地区：[1]空装驻北京地区第三军事代表室,北京100076 [2]航天材料及工艺研究所,北京100076

出　　处：《宇航材料工艺》2024年第2期89-93,共5页Aerospace Materials & Technology

摘　　要：研究了一种耐高温改性双马来酰亚胺树脂(805)的工艺特性、流变特性和耐热性能,在此基础上制备了TG800/805国产高强中模碳纤维复合材料,并对高温及室温的力学性能和断裂微观形貌进行了表征。结果表明:805树脂的最低黏度为1.6 Pa·s,具有良好的工艺性;TG800/805复合材料具有优异的力学性能,经280℃热处理后,其弯曲强度和层间剪切强度在280℃的保持率分别为68%和52%,其玻璃化转变温度(Tg)为356℃,说明研制的TG800/805材料体系可以在280℃高温下较长时间使用。The processing properties,rheological properties and heat resistance of a high-temperature resistant modified bismaleimide resin(805)were studied.On this basis,TG800/805 domestic high-strength medium modulus carbon fiber composite was prepared,and the mechanical properties and fracture microstructure at high temperature and room temperature were characterized.The results show that the lowest viscosity of 805 is 1.6 Pa·s,which has excellent processing properties.TG800/805 composite has excellent mechanical properties.After heat treatment at 280℃,the mechanical properties retention rates of flexural strength and inter-laminar shear strength at 280℃are 68%and 52%,and the glass transition temperature(Tg)of 805 is 356℃,indicating that TG800/805 can be used at 280℃.

关 键 词：双马来酰亚胺 热熔预浸料 碳纤维复合材料 高温力学性能 

分 类 号：TB33[一般工业技术—材料科学与工程]