Multi-gating injection molding to enhance the thermal conductivity of carbon fiber/polysulfone composite

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• 作者：Deliang Sun ; Guoming Lin ; Guoxin Sui ; Yulin Hao ; Rui Yang and Kai Zhang
• 刊名：Polymer Composites
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：38
• 期：1
• 页码：185-191
• 全文大小：1052K
• ISSN：1548-0569

文摘

Carbon fiber was blended into the polysulfone matrix by twin screw extruder. The polymer composites samples were prepared using four different processing technologies, the compression molding, edge-gating injection molding, sprue-gating injection molding, and the multi-gating injection molding techniques. Among four techniques, the composite samples manufactured by multi-gating injection molding technique got a higher value of thermal conductivity, which is due to the carbon fibers orientation and distribution. The experimental result indicated that the fiber orientation have a significant influence on the thermal conductivity of polymer composites. The thermal conductivity of sample made by multi-gating injection molding was 1.82 W/(m·K) when the fiber content was 26 vol%, which was nearly twice than the values obtained by conventional technologies. POLYM. COMPOS., 38:185–191, 2017.