摘要
采用熔融共混法制备了聚丙烯(PP)/马来酸酐接枝丙烯腈-丁二烯-苯乙烯共聚物(ABS-g-MAH)/短碳纤维(SCF)复合材料,并利用万能电子试验机、冲击试验机、维卡软化和负荷热变形温度测试仪、热重分析仪以及熔体流动速率仪分别研究了其力学性能、热学性能及流动性能。力学性能测试表明:以PP-g-MAH作为增容剂,适量的加入SCF(5%~10%),复合材料的力学性能提升明显。维卡软化温度实验结果显示:SCF的加入提高了复合材料的维卡软化温度。热重分析表明:随着体系内SCF含量的逐渐增加,复合材料失重5%时的温度(T_(5%))有逐渐上升的趋势,说明SCF的加入在一定程度上提高了复合体系的热稳定性。熔体流动速率分析表明:随着SCF含量的不断增加,复合材料的熔体流动速率下降明显,流动性能受到抑制。
The polypropylene （PP）/malcinized polypropylene （PP-g-MAH）/short carbon fibers （SCF） composite were prepared by melt-blending process. The composite were studied by using the universal tester, impact tester, Vicat softening point tester, thermogravimetry analysis （ TGA ） and melt flow rate meter. The results showed that PP/ABS-g-MAH/SCF composite had good mechanical properties with using PP-g-MAH as a compatibilizer. The tensile and impact strength of the blends reached their maximum with SCF content of about 5% - 10%. The Vicat softening temperature of the composite was increased by the addition of SCF. The results of thermal stability of PP/ABS-g-MAH/SCF composite indicated that with the increasing content of SCF, T5% increased. It means the thermal stability of the composites was improved by the addition of SCF. The results of melt now rate test showed that with SCF increased, melt flow rate of the composites decreased significantly.
出处
《塑料》
CAS
CSCD
北大核心
2017年第2期74-76,92,共4页
Plastics
基金
河北省科技支撑计划项目(15211224)
河北省应用基础研究计划重点基础研究项目(15961006D)
廊坊市科技支撑计划项目(2016011067)
