Electrical conductivity of thermoresponsive shape-memory polymer with embedded micron sized Ni powder chains

被引：174

作者：

Leng, J. S. ^{[1
]}

Lan, X. ^{[1
]}

Liu, Y. J. ^{[1
]}

Du, S. Y. ^{[1
]}

Huang, W. M. ^{[2
]}

Liu, N. ^{[2
]}

Phee, S. J. ^{[2
]}

Yuan, Q. ^{[2
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin, Peoples R China

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2829388

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electrical resistivity of a thermoresponsive polyurethane shape-memory polymer (SMP) filled with micron sized Ni powders is investigated in this letter. We show that, by forming conductive Ni chains under a weak static magnetic field (0.03 T), the electrical conductivity of the SMP composite in the chain direction can be improved significantly, which makes it more suitable for Joule heat induced shape recovery. In addition, Ni chains reinforce the SMP significantly but their influence on the glass transition temperature is about the same as that of the randomly distributed Ni powders. (c) 2008 American Institute of Physics.

引用

页数：3

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