Tensile properties of ICM polycarbonate part under low temperature

被引：0
|
作者：
Jiang, Jing [1 ,2 ,3 ]
Wang, Xiaofeng [2 ,3 ,4 ]
Hou, Jianhua [2 ,3 ,4 ]
Li, Qian [2 ,3 ]
Xu, Yiyang [2 ,3 ,4 ]
机构：
[1] School of Material Science and Engineering, Zhengzhou University, Zhengzhou,Henan,450001, China
[2] National Centre for International Joint Research of Micro-Nano Moulding Technology, Zhengzhou,Henan,450001, China
[3] Key Laboratory of Micro Molding Technology at Henan Province, Zhengzhou,Henan,450001, China
[4] School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou,Henan,450001, China
来源：
Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Injection molding - Yield stress - Compression molding - Residual stresses - Polycarbonates;
D O I：
10.11949/j.issn.0438-1157.20150292
中图分类号：
学科分类号：
摘要：
Tensile properties of conventional injection molding (IM) PC (polycarbonate) and injection-compression molding (ICM) parts in room and low temperature were compared. The effect of five process parameters (melt and mold temperature, compression distance, delay time and compression force) on residual stress and tensile properties of ICM parts under low temperature was investigated systematically. The results showed that higher tensile yield stress and Modulus were found for ICM parts compared with IM part. Tensile properties of ICM or IM parts were improved under low temperature. Secondary transition were discovered around -40℃ for PC. As the most influenced morphology, the residual stress of ICM parts has the opposite variation as the function of process parameters. Higher melt and molding temperature, bigger compression distance, shorter delay time and smaller compression force can be helpful to give lower residual stress value, and thus to improve the tensile properties. © All right reserved.
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页码：4268 / 4274
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