Full Process Simulation of Short Fiber Reinforced Polymer Blend Extrusion-Injection Molding Based on Co-Simulation

被引：0

作者：

Shen G. ^{[1
]}

Wang Z. ^{[1
]}

Si L. ^{[1
]}

Yang Y. ^{[1
]}

Zhou M. ^{[1
]}

Li L. ^{[1
]}

Li M. ^{[1
]}

Zhang Y. ^{[1
]}

Zhou H. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2023年 / 39卷 / 10期

关键词：

blend extrusion; co-simulation; fiber fracture; fiber reinforced polymer; injection molding;

D O I：

10.16865/j.cnki.1000-7555.2023.0212

中图分类号：

学科分类号：

摘要：

Short fiber reinforced polymers are widely used in automotive, electronic, mechanical, and other fields. Blending extrusion and injection molding are the most common preparation and forming processes, respectively. Existing simulations of blend extrusion and injection molding have the problems of material and process information isolation, and product optimization coordination difficulty, which cannot meet the development needs of high- end and customized polymer products. This paper proposed a co- simulation method for short fiber reinforced polymer blend extrusion- injection molding process. A full area flow field calculation model for blend extrusion process was first established. Based on the flow field simulation, the fiber fracture and fiber length distribution were simulated. On this basis, the rheological and PVT model considering fiber content were established to calculate the equivalent thermodynamic parameters of materials, the fiber orientation and elastic modulus distribution of the injection molded tensile samples were calculated through the mold flow-structure properties. The relative errors between the experimental and simulation results of elastic modulus for the injection molded tensile GF/PA6 samples with the fiber content of 20%, 30% and 40% are 9.94%, 8.32%, and 3.72%, respectively, which verify the accuracy of the co-simulation method. © 2023 Chengdu University of Science and Technology. All rights reserved.

引用

页码：80 / 90

页数：10

共 15 条

[1] Yin X C, Wang Q, He G J, Et al., Development of a mixer under the synergy of ultrasonic wave and adjustable normal stress and preparation of nylon 6/ carbon fiber composites [J], Polymer Materials Science & Engineering, 38, 8, pp. 147-153, (2022)
[2] Wang H X, Peng J，Ge Z, Et al., Research progress in numerical simulation of twin ⁃ screw extrusion process [J], China Plastics, 34, 9, pp. 96-102, (2020)
[3] Li Y, Zhao P, Li D Q, Et al., 3D simulation of residual thermal stress and shrinkage in plastic injection molding, Polymer Materials Science & Engineering, 26, 10, pp. 159-162, (2010)
[4] Morales-Huerta J C, Hernandez-Melendez O, Hernandez-Luna M G, Et al., An experimental and modeling study on the pretreatment and alkaline hydrolysis of blue agave bagasse in twin- screw extruders, Industrial & Engineering Chemistry Research, 60, pp. 12449-12460, (2021)
[5] Luo J S, Yu H W, Du Y X, Et al., Melting mechanisms of high density polyethylene/polystyrene in co-rotating non-twin screws extrusion, Polymer Materials Science & Engineering, 31, 7, pp. 107-113, (2015)
[6] Lafleur P G, Vergnes B., Co- rotating twin- screw extrusion, Polymer extrusion, pp. 109-210, (2014)
[7] Sasayama T, Inagaki M, Sato N., Direct simulation of glass fiber breakage in simple shear flow considering fiber-fiber interaction, Composites Part A: Applied Science and Manufacturing, 124, (2019)
[8] Deng J, Mao X, Brandt L., Symmetry breaking of tail- clamped filaments in Stokes flow, Physical Review Letters, 126, (2021)
[9] Phelps J H, Abd El-Rahman A I, Kunc V, Et al., A model for fiber length attrition in injection- molded long- fiber composites, Composites Part A: Applied Science and Manufacturing, 51, pp. 11-21, (2013)
[10] Shen G, Yu W, Qiao H, Et al., Measuring orientation dynamics of carbon fibers by dielectric anisotropy in shear flows, NDT & E International, 129, (2022)

← 1 2 →