中国机械工程 ›› 2025, Vol. 36 ›› Issue (06): 1329-1337.DOI: 10.3969/j.issn.1004-132X.2025.06.020

• 先进材料加工工程 • 上一篇    下一篇

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

廖钱生1,3;柳和生2;匡唐清2*;刘家豪2;张伟2   

  1. 1.华东交通大学交通运输工程学院,南昌,330013
    2.华东交通大学机电与车辆工程学院,南昌,330013
    3.南昌工程学院机械工程学院,南昌,330029

  • 出版日期:2025-06-25 发布日期:2025-08-05
  • 作者简介:廖钱生,男,1983年生,博士研究生。研究方向为高分子成形加工。E-mail:liaoqiansheng@163.com。
  • 基金资助:
    国家自然科学基金(52163006,52273033,52303038);江西省重点研发计划(20223BBE51012);江西省自然科学基金重点项目(20232ACB204004)

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

LIAO Qiansheng1,3;LIU Hesheng2;KUANG Tangqing2*;LIU Jiahao2;ZHANG Wei2   

  1. 1.School of Transportation Engineering,East China Jiaotong University,Nanchang,330013
    2.School of Mechanical & Vehicle Engineering,East China Jiaotong University,Nanchang,330013
    3.School of Mechanical Engineering,Nanchang Institute of Technology,Nanchang,330029

  • Online:2025-06-25 Published:2025-08-05

摘要: 为研究玻纤质量分数对以长玻纤增强聚丙烯为外层材料、纯聚丙烯为内层材料的水驱动弹头辅助共注塑成形(W-PACIM)管件的影响,采用试验方法分析了玻纤质量分数对管件残余壁厚、玻纤取向分布规律及管件耐压性能的影响规律及影响机理,结果表明:随着玻纤质量分数的增大,管件总残余壁厚先减小后增大;管件外层根据玻纤取向的分布特点可分为近模壁层、中间层和近界面层,且玻纤沿熔体流动方向的取向由外而内逐层升高,随着玻纤质量分数的增大,外层玻纤分布均匀性降低;管件的耐压性能先增后减,玻纤质量分数为20%时,管件耐压性能最好。

关键词: 玻纤质量分数, 水驱动弹头辅助共注塑成形, 残余壁厚, 玻纤取向, 耐压性能

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(W-PACIM), residual wall thickness, glass fiber orientation, pressure resistance

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