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采用熔融接枝共混法制备了马来酸酐(MAH)接枝共聚PP(ICPP)制备增容剂ICPP-g-MAH和PC/ICPP/ICPP-g-MAH共混物,研究了ICPP-g-MAH增容PC/ICPP合金的力学性能、吸水性和加工流变性能等。结果表明,与未增容的体系相比,ICPP-g-MAH是PC/ICPP合金的有效增容剂,在80%PC的共混体系中,加入少量的ICPP-g-MAH的确起到改善相界面,提高合金力学性能的作用。当ICPP-g-MAH质量分数为5%,EBS质量分数为0.2%时,合金拉伸强度和冲击强度最好,维卡软化温度达到最大;加入ICPP-g-MAH后,PC/ICPP/ICPP-g-MAH共混物吸水率下降,熔体流动速率(MFR)先减小后增大。
MAH graft copolymer PP (ICPP) was prepared by melt graft copolymerization. The compatibilizer ICPP-g-MAH and PC / ICPP / ICPP-g-MAH blends were prepared. The effects of ICPP-g -MAH compatibilization PC / ICPP alloy mechanical properties, water absorption and processing rheological properties. The results show that ICPP-g-MAH is an effective compatibilizer for PC / ICPP alloys compared to an uncapped system, and the addition of a small amount of ICPP-g-MAH to a blend of 80% PC does indeed improve Phase interface, improve the mechanical properties of the alloy role. When the content of ICPP-g-MAH was 5% and the mass fraction of EBS was 0.2%, the tensile strength and impact strength of the alloy were the best, Vicat softening temperature reached the maximum. After adding ICPP-g-MAH, the PC / ICPP / ICPP -g-MAH blends decreased water absorption, the melt flow rate (MFR) first decreased and then increased.