超临界CO2辅助PTFE／PP挤出的研究

PTFE

超临界CO2辅助PTFE／PP挤出的研究
STUDY ON EXTRUSION OF PTFE/PP ASSISTED BY SUPERCRITICAL CARBON DIOXIDE
作　　者：杜小刚 刘亚青 谢江波 马春

Du Xiaogang, Liu Yaqing, Xie Jiangbo, Ma Chun （Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan 030051, China ）

机构地区：中北大学山西省高分子复合材料工程技术研究中心,太原030051

出　　处：《工程塑料应用》 CAS CSCD 2008年第36卷第2期 35-37页,共3页

Engineering Plastics Application

摘　　要：研究了超临界CO2辅助聚四氟乙烯（PTFE）／聚丙烯（PP）共混体系的挤出成型过程。结果表明，超临界CO2辅助挤出成型过程中，超临界CO2对阿FE／PP体系能起到一定的增韧作用，并且超临界CO2作为一种增塑剂，能降低阿FE／PP体系的粘度，改善体系的流动性和加工性。

PTFE/PP extrusion assisted by supercritical carbon dioxide was studied. The results showed that the supercritical carbon dioxide could make the polymer system tougher. As a plasticizer, the supercritical carbon dioxide could reduce apparent viscosity of polymers, improve the rheological property and process ability of polymers.

关 键 词：超临界CO2 聚四氟乙烯 聚丙烯 增韧 降粘
supercritical carbon dioxide, PTFE, PP, toughening, viscosity reduction
分 类 号： TQ028.32 [工业技术 > 化学工业 > 一般性问题 > 化工过程（物理过程及物理化学过程） > 分离过程 > 单相系液态混合物的分离过程] TQ325.4 [工业技术 > 化学工业 > 合成树脂与塑料工业 > 聚合类树脂及塑料]

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