Embedded shape-memory alloy wires for improved performance of self-healing polymers

被引：149

作者：

Kirkby, Eva L. ^{[1
]}

Rule, Joseph D. ^{[2
]}

Michaud, Veronique. J. ^{[1
]}

Sottos, Nancy R. ^{[2
]}

White, Scott R. ^{[2
]}

Manson, Jan-Anders E. ^{[1
]}

机构：

[1] Inst Materiaux, Lab Technol Composites & Polymeres, CH-1015 Lausanne, Switzerland

[2] Univ Illinois, Beckman Inst Adv Sci & Technol, Auton Mat Syst Grp, Urbana, IL 61801 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2008年 / 18卷 / 15期

基金：

瑞士国家科学基金会;

关键词：

D O I：

10.1002/adfm.200701208

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the first measurements of self-healing polymers with embedded shape-memory alloy (SMA) wires. The addition of SMA wires shows improvements of healed peak fracture loads by up to a factor of 1.6, approaching the performance of the virgin material. Moreover, the repairs can be achieved with reduced amounts of healing agent. The improvements in performance are due to two main effects: (i) crack Closure, which reduces the total crack Volume and increases the crack rill factor for a given amount of healing agent and (ii) heating of the healing agent during polymerization, which increases the degree of cure of the polymerized healing agent.

引用

页码：2253 / 2260

页数：8

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