摘要
利用微量双螺杆挤出机和微量注塑机,在聚碳酸酯/碳纤维(PC/CF)复合材料中添加丙烯腈-丁二烯-苯乙烯共聚物(ABS)对其进行增韧改性,对复合材料加工过程中的流变行为进行了分析,并分别研究了CF及ABS的含量对复合材料力学性能的影响,探讨了黏度与力学性能变化的机理。结果表明,当CF含量为2%(质量分数,下同)时,PC/CF复合材料假塑性最强,熔融状态下易于流动加工,力学性能也最为优异;CF含量不变,当ABS含量为30%～35%时,PC/ABS/CF三元复合材料同时具有良好的流动性及力学性能;拉伸断裂的主要断裂方式为界面脱胶,而冲击断裂则为纤维断裂;PC/ABS/CF三元复合材料的韧性断裂成分要明显多于PC/CF二元复合材料。
Acrylonitrile-butadiene-styrene copolymer （ABS） was introduced into polycarbonate/ carbon fiber （PC/CF） composites in a micro twin-screw extruder and a micro injection molding machine, and the rheological behavior of PC/ABS/CF composites was studied. Effect of contents of CF and ABS on the mechanical and rheological properties of the composites was studied. It showed that when CF content was 2 % .the minimum of non-Newtonian value and excellent mechanical and processing properties were obtained. With the content of CF remained unchanged, ABS content was between 30 %0 and 35 %, PC/ABS/CF composites with good mechanical and processing properties were also obtained. The tensile failure of the composites was mainly interface degumming, and the impact failure of the composites was mainly fiber breakage. PC/ABS/CF was tougher than PC/CF composites.
出处
《中国塑料》
CAS
CSCD
北大核心
2011年第11期16-21,共6页
China Plastics
