利用Brabender挤出机和密炼机分别制备了熔融接枝物PP g MAH,研究了ABS/PP、ABS/PP g MAH、ABS/PP/PP g MAH三种共混物的性能,且作了对比。实验结果表明:PP g MAH的加入,能在一定程度上改善共混物的冲击性能、加工流动性能和耐热... 利用Brabender挤出机和密炼机分别制备了熔融接枝物PP g MAH,研究了ABS/PP、ABS/PP g MAH、ABS/PP/PP g MAH三种共混物的性能,且作了对比。实验结果表明:PP g MAH的加入,能在一定程度上改善共混物的冲击性能、加工流动性能和耐热性能。展开更多
采用双螺杆挤出机熔融制备废旧PP(R-PP)/废旧ABS(R-ABS)共混物,研究了二嵌段共聚物苯乙烯-乙烯/丙烯(SEP)对R-PP/R-ABS共混物力学性能、熔体流动速率以及微观形貌的影响。研究表明,SEP的加入虽使拉伸强度略有下降,但能改善共混物的综合...采用双螺杆挤出机熔融制备废旧PP(R-PP)/废旧ABS(R-ABS)共混物,研究了二嵌段共聚物苯乙烯-乙烯/丙烯(SEP)对R-PP/R-ABS共混物力学性能、熔体流动速率以及微观形貌的影响。研究表明,SEP的加入虽使拉伸强度略有下降,但能改善共混物的综合力学性能,且5 phr SEP与R-PP/R-ABS(70/30)共混时,共混物的综合力学性能最佳,缺口冲击强度达到4.05 k J/m2,比未加SEP时提高了73%。此外,熔体流动速率研究表明,随着SEP含量的增加,熔融指数降低。扫描电镜研究表明,SEP的加入减小了分散相的平均粒径,降低了分散相的聚集程度。展开更多
The preparation process-dependent phase morphology of blends composed of nylon 6 and acrylonitrile-butadiene- styrene(ABS)over a composition range of 30-70 wt% using a styrene-maleic anhydride(SMA)copolymer as the com...The preparation process-dependent phase morphology of blends composed of nylon 6 and acrylonitrile-butadiene- styrene(ABS)over a composition range of 30-70 wt% using a styrene-maleic anhydride(SMA)copolymer as the compatibilizing agent with a constant content(5phr)was investigated.The results of the scanning electron microscope (SEM)observation revealed that compared with the binary blends of nylon 6 and ABS,the existence of SMA caused a composition shift of phase inversion to a higher weight fraction of ny...展开更多
文摘采用双螺杆挤出机熔融制备废旧PP(R-PP)/废旧ABS(R-ABS)共混物,研究了二嵌段共聚物苯乙烯-乙烯/丙烯(SEP)对R-PP/R-ABS共混物力学性能、熔体流动速率以及微观形貌的影响。研究表明,SEP的加入虽使拉伸强度略有下降,但能改善共混物的综合力学性能,且5 phr SEP与R-PP/R-ABS(70/30)共混时,共混物的综合力学性能最佳,缺口冲击强度达到4.05 k J/m2,比未加SEP时提高了73%。此外,熔体流动速率研究表明,随着SEP含量的增加,熔融指数降低。扫描电镜研究表明,SEP的加入减小了分散相的平均粒径,降低了分散相的聚集程度。
基金This work was supported by the National Science Funds for GuiZhou Province Science Projects(No.GY-2005-3036)the Special Funds for Major State Basic Research Projects(No.2005CB623802).
文摘The preparation process-dependent phase morphology of blends composed of nylon 6 and acrylonitrile-butadiene- styrene(ABS)over a composition range of 30-70 wt% using a styrene-maleic anhydride(SMA)copolymer as the compatibilizing agent with a constant content(5phr)was investigated.The results of the scanning electron microscope (SEM)observation revealed that compared with the binary blends of nylon 6 and ABS,the existence of SMA caused a composition shift of phase inversion to a higher weight fraction of ny...