玻纤质量分数对长玻纤增强聚丙烯水驱动弹头辅助共注塑管件的影响

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中图分类号：TQ320.66 DOI：10.3969/j.issn.1004-132X.2025.06.020 开放科学（资源服务）标识码（OSID）：

Effects of Glass Fiber Mass Fraction on W-PACIM Pipes of Long Glass Fiber Reinforced Polypropylene

LIAO Qiansheng1， LIU Hesheng²KUANG Tangqing²*LIU Jiahao² ZHANG Wei² 1.School of Transportation Engineering，East China Jiaotong University，Nanchang， 2.School of Mechanical & Vehicle Engineering，East China Jiaotong University，Nanchang， 3.School of Mechanical Engineering，Nanchang Institute of Technology，Nanchang，

Abstract： To study the effects of glass fiber mass fraction on W-PACIM pipes with long glass fiber reinforced polypropylene as the outer material and pure polypropylene as the inner material，the influences of glass fiber mass fraction on the residual wall thickness，the orientation distribution of glass fibers and the pressure resistance of the pipes were analyzed by experimental methods. The results show that with the increases of glass fiber mass fraction， the total residual wall thickness of the pipes decreases first and then increases.The outer layer of the pipes may be divided into near the mold wall layer，the middle layer and the near interface layer according to the distribution characteristics of the glass fiber orientations，the orientation of the glass fiber along the melt flow direction increases gradually from the outside to the inside，the uniformity of the distribution of the outer glass fiber decreases with the increase of glass fiber mass fraction. The pressure resistance of pipes increases first and then decreases，when the glass fiber mass fraction is 20% ，the pressure resistance of pipes is the best.

Key words： glass fiber mass fraction; water-powered projectile assisted co-injection molding（WPACIM）；residual wall thickness;glass fiber orientation; pressure resistance

0 引言

玻纤增强聚丙烯是一种以纯聚丙烯（poly-propylene，PP）为基体，玻璃纤维为增强相，通过特定工艺生产的高分子复合材料。（剩余14452字）