Effects of fiber length distribution on flow property and internal microstructure of an injection molded part

被引：10

作者：

Hwang, Soon Hyoung ^{[1
]}

Lee, Doo Jin ^{[1
]}

Youn, Hye Rim ^{[1
]}

Song, Young Seok ^{[2
]}

Youn, Jae Ryoun ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, RIAM, Seoul 151744, South Korea

[2] Dankook Univ, Dept Fiber Syst Engn, Gyeonggi 448701, South Korea

来源：

MACROMOLECULAR RESEARCH | 2015年 / 23卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

micro-CT; fiber length distribution; flowability; numerical analysis; GLASS-FIBER; RHEOLOGICAL BEHAVIOR; REINFORCED POLYPROPYLENE; THERMAL-CONDUCTIVITY; POLYMER COMPOSITES; MICROSCOPY; MODULUS; TENSILE; LIQUIDS; FOAM;

D O I：

10.1007/s13233-015-3108-z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Internal microstructures of micro-injection molded connectors were investigated to figure out the relationship between flow properties in the micro-channel and fiber length distributions (FLD). Micro-CT and image processing techniques were performed to convert the images obtained by Micro-CT into 3D structures and visualize the fiber length distributions. It was verified by both experimental and numerical analyses that the fiber length distribution affects significantly the processability and flowability of the composite melt for injection molding of microconnectors since a large amount of glass fibers within the material worsen the rheological properties and long fibers hinder flowability at narrow junctions and micro scale channels.

引用

页码：844 / 849

页数：6

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