超临界CO_2辅助UHMWPE/PP挤出成型研究  

Study on Extrusion Moulding of UHMWPE/PP Assisted by Supercritical Carbon Dioxide

作　　者：谢江波[1] 刘亚青[1] 罗佳[1] 付一政[1] 

机构地区：[1]中北大学山西省高分子复合材料工程技术研究中心,山西太原030051

出　　处：《塑料科技》2009年第2期43-45,共3页Plastics Science and Technology

摘　　要：对超临界CO2辅助UHMWPE/PP共混体系的挤出成型进行了研究。结果表明,在挤出成型过程中,超临界CO2对UHMWPE/PP体系起到一定的增韧作用,使其力学性能有所改善。同时超临界CO2作为一种增塑剂,降低了UHMWPE/PP体系的黏度,改善了体系的流动性和加工性能。The extrusion moulding of UHMWPE/PP assisted by supercritical carbon dioxide was studied. The result showed that the UHMWPE/PP blending system was toughened by the supercritical carbon dioxide during the extrusion moulding process, and then the mechanical properties were improved. Meanwhile, the supercritical carbon dioxide acted as a plasticizer, the viscosity of UHMWPE/PP system was reduced, and the rheological property and processability of the blend system were improved.

关 键 词：超临界CO2 超高分子量聚乙烯 聚丙烯 降黏 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]