玻纖質量分數(shù)對長玻纖增強聚丙烯水驅動彈頭輔助共注塑管件的影響

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中圖分類號：TQ320.66 DOI：10.3969/j.issn.1004-132X.2025.06.020 開放科學（資源服務）標識碼（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

玻纖增強聚丙烯是一種以純聚丙烯（poly-propylene，PP）為基體，玻璃纖維為增強相，通過特定工藝生產(chǎn)的高分子復合材料。（剩余14452字）