摘要
针对传统基于螺杆挤出的热塑性材料浸渍程度低而导致丝材性能不高的问题,基于“熔融-溶剂”法结合作用下的复合丝材制备工艺,以聚碳酸酯(PC)为基体材料,连续碳纤维(CCF)为增强体,研究拉丝速度、浸渍辊个数、浸渍温度对浸渍程度影响关系,并通过扫描电子显微镜进行对比分析,得到PC/CCF复合材料的最佳工艺参数,即拉丝速度为5 mm/min,浸渍温度为280℃,浸渍辊个数为3,此时复合丝材浸渍程度可达99.62%。通过对不同浸渍程度PC/CCF 3D打印样件力学性能对比,表明较高的复合丝材浸渍程度能够较大地提升样件的力学性能。
Aiming at solving the problem of low impregnation degree of traditional thermoplastic materials based on screw extrusion,based on the composite preparation process of"melt-solvent"method,using polycarbonate(PC)as matrix material and continuous carbon fiber as reinforcement,the influences of wire drawing speed,the number of impregnation rolls and impregnation temperature on impregnation degree were studied.The optimum parameters of PC/CCF composites were obtained by comparing and analyzing the scanning electron microscope images.The impregnation degree of PC/CCF composites can reach 99.62%when the drawing speed is 5 mm/min,impregnation temperature is 280℃and the number of impregnation rolls is 3.By comparing the mechanical properties of PC/CCF composites with different degrees of impregnation,the results show that higher degree of impregnation can bring greater mechanical properties improvement.
作者
张帆
陈港
贵树峰
张俊
Zhang Fan;Chen Gang;Gui Shufeng;Zhang Jun(School of Electrical and Mechanical Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2023年第3期69-75,共7页
Engineering Plastics Application
关键词
连续碳纤维
3D打印
浸渍程度
最佳工艺参数
continuous carbon fiber
3D printing
degree of immersion
optimum parameter
