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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 / maleic anhydride grafted ABS-g-MAH / short carbon fiber (SCF) composites were prepared by the melt blending method. The universal electronic test Mechanical, impact testing machine, Vicat softening and load heat distortion temperature tester, thermogravimetric analyzer and melt flow rate meter were studied mechanical properties, thermal properties and flow properties. The mechanical properties of the composites show that the mechanical properties of the composites increase obviously with PP-g-MAH as compatibilizer and proper amount of SCF (5% -10%). Vicat softening temperature experimental results show: SCF added to improve the Vicat softening temperature of the composite material. Thermogravimetric analysis shows that the temperature (T_ (5%)) of composites increases gradually with the increase of SCF content in the system, indicating that the addition of SCF improves the heat of the composites to a certain extent stability. Melt flow rate analysis showed that: with the increasing of SCF content, the melt flow rate of the composites decreased significantly, and the flowability was inhibited.