Process effects of long glass fiber reinforced polypropylene fluid assisted injection molding pipes

被引：0
|
作者：
Wang J. [1 ]
Kuang T. [1 ]
Liu H. [1 ]
Zhu Y. [1 ]
Gao C. [2 ]
机构：
[1] School of Mechanical & Vehicle Engineering, East China Jiaotong University, Nanchang
[2] Jiangxi Liansu Technology Industry CO., LTD., Nanchang
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2024年 / 41卷 / 05期
基金：
中国国家自然科学基金;
关键词：
FAIM; glass fiber breakage length; glass fiber orientation; LGFR-PP; process method;
D O I：
10.13801/j.cnki.fhclxb.20230906.001
中图分类号：
学科分类号：
摘要：
The long glass fiber reinforced polypropylene fluid-assisted injection molding pipes were molded by four processes: Gas-assisted injection molding process (GAIM), gas-projectile-assisted injection molding process (G-PAIM), water-assisted injection molding process (WAIM) and water-projectile-assisted injection molding process (W-PAIM). The effects of each process on the wall thickness, glass fiber fracture length and glass fiber orientation of the pipes were compared and studied. The results show that the wall thickness of the W-PAIM process pipes is the thinnest and most uniform, and the wall thickness of the GAIM process pipes is the thickest and most non-uniform. G-PAIM had better wall thickness uniformity than WAIM pipes, but WAIM pipes has thinner wall thicknesses. The glass fiber fracture lengths are unevenly distributed among the four process methods. The average glass fiber fracture length is ranked as WAIM>GAIM>W-PAIM>G-PAIM. The introduction of the projectile intensifies the glass fiber fracture effect, so that the glass fiber fracture length is shorter. In G-PAIM, WAIM and W-PAIM processes, the orientation of glass fibers along the flow direction tends to increase gradually from near the mold wall layer to the middle layer to near the runner layer, and the orientation of GAIM glass fibers is disorganized. The degree of glass fiber orientation of each process pipes is ranked as W-PAIM>WAIM>G-PAIM>GAIM. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
引用
收藏
页码：2436 / 2444
页数：8
相关论文
共 26 条
  • [1] QIU Yonghong, Structure and properties of long glass fiber reinforced polypropylene composites, Petrochemical Industry Technology, 29, 6, pp. 1-3, (2022)
  • [2] LIU Guogang, MA Yi, LIANG Wenbin, Et al., Study on properties of long glass fiber reinforced polypropylene composites, Plastics Science and Technology, 45, 10, pp. 25-29, (2017)
  • [3] ZHANG Yang, ZHANG Haisheng, CHEN Jianrui, Effect of matrix resin and glass fiber on properties of polypropylene composites, Plastics Science and Technology, 50, 3, pp. 43-48, (2022)
  • [4] HOU Xuqin, LI Guili, CHEN Xingyuan, Et al., Overview of the fracture of long glass fiber reinforced thermoplastics during injection molding, Polymer Materials Science & Engineering, 35, 5, pp. 179-183, (2019)
  • [5] TSENG H C, CHANG R Y, HSU C H., Numerical prediction of fiber orientation and mechanical performance for short/ long glass and carbon fiber-reinforced composites, Composites Science and Technology, 144, pp. 51-56, (2017)
  • [6] ZHANG D H, HE M, LUO H, Et al., Performance of long glass fiber-reinforced polypropylene composites at different injection temperature, Journal of Vinyl and Additive Technology, 24, 3, pp. 233-238, (2018)
  • [7] YANG X J, CHANG J Y, FANG W J, Et al., Improved impact property of long glass fiber-reinforced polypropylene random copolymer composites toughened with beta-nucleating agent via tunning the crystallization and phase, Polymer Composites, 42, 7, pp. 3169-3183, (2021)
  • [8] TSENG H C, CHANG R Y, HSU C H., Numerical predictions of fiber orientation and mechanical properties for injection-molded long-glass-fiber thermoplastic composites, Composites Science and Technology, 150, pp. 181-186, (2017)
  • [9] WANG Bo, HUANG Jie, YANG Jinming, Et al., Study on mechanical properties of long glass fiber reinforced PP composite, Plastics Science and Technology, 45, 10, pp. 35-38, (2017)
  • [10] KONG Xiaoyin, Research progress of long glass fiber reinforced polypropylene composites, Papermaking Equipment & Materials, 49, 3, (2020)
123