Preparation of nano-polyethylene fibers and floccules using MCM-41-supported metallocene catalytic system under atmospheric pressure

被引：36

作者：

Dong, XC ^{[1
]}

Wang, L ^{[1
]}

Wang, WQ ^{[1
]}

Yu, HJ ^{[1
]}

Wang, JF ^{[1
]}

Chen, T ^{[1
]}

Zhao, ZR ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Polymer React Engn, Coll Mat Sci & Chem Engn, Hangzhou 310027, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2005年 / 41卷 / 04期

基金：

中国国家自然科学基金;

关键词：

nano-polyethylene fiber; polyethylene floccules; MCM-41; extrusion polymerization; metallocene catalyst; atmospheric pressure;

D O I：

10.1016/j.eurpolymj.2004.11.001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Under atmospheric pressure, nano-polyethylene fibers and floccules were prepared via ethylene extrusion polymerization in situ with MCM-41-supported metallocene catalytic system. The nano-fibers and floccules were the major morphological units in the resultant samples, and the nano-fibers aggregated uniformly into aggregates and bundles. The diameter of the single fiber was 80-100 nm. With the extension of the polymerization time, the number of floccules increased. The DSC results showed that the resultant samples had higher melting point, compared with polyethylene prepared by homogeneous metallocene catalytic system in the same conditions. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：797 / 803

页数：7

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