Rheological Properties for Polypropylene Modified by Polytetrafluoroethylene

被引：35

作者：

Ali, Mohd Amran Bin Md ^{[1
]}

Okamoto, Kenzo ^{[1
]}

Yamaguchi, Masayuki ^{[1
]}

Kasai, Toshihiro ^{[2
]}

Koshira, Atsunori ^{[2
]}

机构：

[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan

[2] Mitsubishi Rayon Co Ltd, Minato Ku, Tokyo 1088506, Japan

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2009年 / 47卷 / 20期

关键词：

blends; poly(propylene); polytetrafluoroethylene; rheology; BINARY BLENDS; ELONGATIONAL VISCOSITY; MOLECULAR-STRUCTURE; FLOW INSTABILITY; POLYETHYLENE; EXTRUSION; BEHAVIOR; POLYMER; PROCESSABILITY; DENSITY;

D O I：

10.1002/polb.21799

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Linear and nonlinear viscoelastic properties for binary blends composed of isotactic polypropylene and polytetrafluoroethylene (PTFE) are studied. It is found that blending a small amount of PTFE greatly enhances the storage modulus in the low frequency region. Further, drawdown force and normal stress difference increase with the PTFE content. Electron microscope observation reveals that PTFE deforms into fine fibers whose diameter is smaller than 0.5 mu m. The network structure composed of the fibers is responsible for the marked elastic properties. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 2008-2014, 2009

引用

页码：2008 / 2014

页数：7

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