Microstructure and mechanical properties of isotactic polypropylene composite with two-scale reinforcement

被引：12

作者：

Chen, Yan-Hui ^{[2
,3
]}

Zhang, Zheng-Chi ^{[2
,3
]}

Hsiao, Benjamin S. ^{[4
]}

Tang, Jian-Hua ^{[1
]}

Li, Zhong-Ming ^{[2
,3
]}

机构：

[1] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Peoples R China

[2] Sichuan Univ, Coll Polymer Sci & Engn, Chengdu 610065, Peoples R China

[3] Sichuan Univ, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

[4] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

来源：

POLYMERS FOR ADVANCED TECHNOLOGIES | 2012年 / 23卷 / 12期

关键词：

oscillatory shear injection molding; glass fiber; shish-kebab; mechanical properties; GLASS-FIBER; IMPACT PROPERTIES; SHEAR-FLOW; ORIENTATION; TENSILE; CRYSTALLIZATION; MORPHOLOGY;

D O I：

10.1002/pat.3032

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Isotactic polypropylene (iPP) composite with two-scale reinforcement structure, i.e. nanoscale shishkebab structure and micron-scale glass fiber (GF) with orientation, was fabricated by an oscillatory shear injection molding (OSIM) technology. The oscillatory shear flow provided by the OSIM gave rise to a high fraction of shishkebab structures in the iPP composite, characterized by X-ray scattering technique. On the other hand, the oscillatory shear flow oriented GFs in the iPP composite, which was revealed by scanning electron microscopy measurement. The iPP composite with this two-scale reinforcement structure exhibited simultaneously remarkably enhanced tensile strength and impact strength. Fracture mechanism of this iPP composite was also proposed. Copyright (c) 2012 John Wiley & Sons, Ltd.

引用

页码：1580 / 1589

页数：10

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