| 气体辅助注射成型高密度聚乙烯的结晶形态 |
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| 引用本文： | 黄莉,郑国强,杨伟,杨斌,杨鸣波,李倩,申长雨. 气体辅助注射成型高密度聚乙烯的结晶形态[J]. 高分子材料科学与工程, 2007, 23(5): 198-201 |
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| 作者姓名： | 黄莉 郑国强 杨伟 杨斌 杨鸣波 李倩 申长雨 |
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| 作者单位： | 四川大学高分子科学与工程学院,高分子工程国家重点实验室,四川,成都,610065;郑州大学橡塑模具国家工程研究中心,河南,郑州,450002 |
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| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 通过扫描电镜(SEM)观察了气体辅助注射成型(GAIM)和常规注射成型(CIM)高密度聚乙烯(HDPE)的结晶形态,发现CIM试样为区分不明显的皮芯结构,而GAIM试样形成了包括球晶、串晶和取向片晶的多层结构.且GAIM试样球晶尺寸显著小于CIM制品.在结晶形态分析的基础上,初步探讨了气体辅助注射成型制品结晶形态的形成机理.
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| 关 键 词： | 气辅注射 串晶 气体穿透 刻蚀 |
| 文章编号： | 1000-7555（2007）05-0198-04 |
| 修稿时间： | 2007-03-19 |
Crystalline Morphology of HDPE Molded by Gas Assisted Injection |
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| HUANG Li,ZHENG Guo-qiang,YANG Wei,YANG Bin,YANG Ming-bo,LI Qian,SHEN Chang-yu. Crystalline Morphology of HDPE Molded by Gas Assisted Injection[J]. Polymer Materials Science & Engineering, 2007, 23(5): 198-201 |
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| Authors: | HUANG Li ZHENG Guo-qiang YANG Wei YANG Bin YANG Ming-bo LI Qian SHEN Chang-yu |
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| Affiliation: | 1. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; 2. National Engineer Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China |
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| Abstract: | Scanning electronic microscopy was adopted to explore the crystalline morphology of HDPE molded by gas assisted injection and conventional injection. The results show that a multilayer structure was formed in the GAIM parts with several kinds of crystalline structure, including spherulite, shish-kebab, and oriented parallel lamellar stacks, which was not observed in CIM. Moreover, the spherulite sizes of GAIM parts are obviously small than CIM ones. |
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| Keywords: | gas assisted injection molding shish-kebab gas penetration etching |
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