Impact fracture behavior of ethylene ionomer and structural change after stretching

被引：10

作者：

Akimoto, H ^{[1
]}

Kanazawa, T ^{[1
]}

Yamada, M ^{[1
]}

Matsuda, S ^{[1
]}

Shonaike, GO ^{[1
]}

Murakami, A ^{[1
]}

机构：

[1] Himeji Inst Technol, Dept Chem Engn, Himeji, Hyogo 6712201, Japan

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2001年 / 81卷 / 07期

关键词：

D O I：

10.1002/app.1603

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We carried out tensile impact test and very low speed tensile test on ethylene-based Ionomers (E/15wt %MAA) to clarify the relation between impact toughness and high-ordered structure. We also studied the changes in high-ordered structure under deformation by observing Differential Scanning Calorimetory (DSC) and Small-Angle X-ray Scattering (SAXS) of fractured surface. Na Ionomers showed ductile fracture in both high speed tensile impact (3 m/s) and very low speed tensile (2 mm/min). The disappearance of secondary melting point (Ti) in Na Ionomers was due to the destruction of ordered structure surrounding the ionic aggregate. Similar behavior was observed in 60% (or less) neutralized Zn Ionomers. However, 80%: neutralized Zn Ionomer showed brittle failure in high-speed tensile impact, and Ti did not disappear. SAXS studies of Na and Zn Ionomers after fracture, show no change both after molding (no aging) and after aging. (C) 2001 John Wiley & Sons, Inc.

引用

页码：1712 / 1720

页数：9

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