| 高熔体强度聚丙烯及发泡珠粒的制备与研究 |
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| 引用本文： | 郭鹏,徐耀辉,吕明福,张师军.高熔体强度聚丙烯及发泡珠粒的制备与研究[J].化学通报,2015,78(2):164-169. |
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| 作者姓名： | 郭鹏 徐耀辉 吕明福 张师军 |
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| 作者单位： | 中国石油化工股份有限公司北京化工研究院 北京 100013 |
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| 基金项目： | 国家科技支撑计划课题(2011BAE26B04)和中国石化科技开发项目(G6001-14-ZS-0464)资助 |
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| 摘 要： | 使用直接聚合法制备了具有宽分子量分布的高熔体强度聚丙烯。利用反应釜浸渍法,以上述高熔体强度聚丙烯为基础树脂可以制备聚丙烯发泡珠粒。利用扫描电子显微镜和熔体强度测试仪考察了聚丙烯发泡珠粒的制备工艺及基础树脂的熔体强度对泡孔结构的影响。结果表明,与普通商业化聚丙烯如T30S相比,较高的熔体强度有利于泡孔结构的控制。
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| 关 键 词： | 聚丙烯 熔体强度 发泡聚丙烯 泡孔结构 |
| 收稿时间： | 6/9/2014 12:00:00 AM |
| 修稿时间： | 2014/7/15 0:00:00 |
Fabrication and investigation of high melt strength polypropylene and its foams |
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| Guo Peng,Xu Yaohui,Lv Mingfu and Zhang Shijun.Fabrication and investigation of high melt strength polypropylene and its foams[J].Chemistry,2015,78(2):164-169. |
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| Authors: | Guo Peng Xu Yaohui Lv Mingfu and Zhang Shijun |
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| Institution: | Beijing Research Institute of Chemical Industry, SINOPEC,,, |
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| Abstract: | The high melt strength polypropylene (HMSPP) is produced by direct polymerization. This polypropylene contains a wide molecular weight distribution and exhibit excellent mechanical properties, especially with very high melt strength. The expanded polypropylene beads are produced by above HMSPP through autoclave-based batch process. The effects of processing conditions and melt strength on the cellular morphology of EPP were investigated by scanning electron microscope (SEM) and melt strength meter, respectively. Results indicated higher melt strength facilitates the control of foaming process and cellular structure compared with common commercial polypropylene such as T30S. |
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| Keywords: | Polypropylene Melt strength Expanded polypropylene Cellular structure |
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