| 动态注射成型聚丙烯制品的湿热老化性能研究 |
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| 引用本文： | 刘斌,刘庆辉,瞿金平. 动态注射成型聚丙烯制品的湿热老化性能研究[J]. 材料科学与工艺, 2011, 19(1): 58-64,70 |
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| 作者姓名： | 刘斌 刘庆辉 瞿金平 |
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| 作者单位： | 华南理工大学聚合物成型加工工程教育部重点实验室聚合物新型成型装备国家工程研究中心; |
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| 基金项目： | 国家自然科学基金资助项目(10590351) |
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| 摘 要： | 通过对动态注射成型聚丙烯制品进行人工加速老化,对其老化性能进行测试研究,探讨了聚丙烯制品的抗湿热老化机制.利用动态注射成型机注射成型聚丙烯制品,采用DSC等测试手段分析了稳态注射和动态注射成型的聚丙烯制品的性能特征,通过湿热老化试验(90℃,湿度为95%),对比分析了稳态注射和动态注射成型的聚丙烯制品老化期间力学性能的...
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| 关 键 词： | 动态注射成型 聚丙烯 湿热老化 |
Research on hygrothermal aging of dynamic injection molded polypropylene products |
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| LIU Bin,LIU Qing-hui and QU Jin-ping. Research on hygrothermal aging of dynamic injection molded polypropylene products[J]. Materials Science and Technology, 2011, 19(1): 58-64,70 |
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| Authors: | LIU Bin LIU Qing-hui QU Jin-ping |
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| Affiliation: | LIU Bin,LIU Qing-hui,QU Jin-ping(The Key Laboratory of Polymer Processing Engineering of Ministry of Education,National Engineering Research Center of Novel Equipment for Polymer Processing South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | By artificially accelerating the aging process,the effects of dynamic injection molding on the anti-hygrothermal aging properties of polypropylene products were studied and its mechanism was also discussed.The results show that,when the aging temperature is 90 ℃,and the humidity is 95%,compared with steady injection molding,the performance of the polypropylene products made by dynamic injection molding machine is improved.After 60 days of aging,the maintain rate of tensile strength of the dynamic injection molded polypropylene products is 46%,that of the impact strength is 54.7%,and that of products colors increases to some extent. |
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| Keywords: | dynamic injection molding polypropylene hygrothermal aging |
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