Wax-protected catalyst microspheres for efficient self-healing materials

被引：313
作者：
Rule, JD
Brown, EN
Sottos, NR
White, SR
Moore, JS [1 ]
机构：
[1] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Chem, Urbana, IL 61801 USA
[3] Univ Illinois, Dept Theoret & Appl Mech, Urbana, IL 61801 USA
[4] Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA
来源：
ADVANCED MATERIALS | 2005年 / 17卷 / 02期
关键词：
D O I：
10.1002/adma.200400607
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Microspheres of wax containing embedded Grubbs' catalyst are generated by congealing a molten aqueous suspension. Even with a ten-fold reduction in catalyst concentration from previous systems, these microspheres produce unprecedented levels of toughness recovery in a polymeric self-healing material (see Figure). Unlike the previously reported systems, samples healed with the wax microspheres show nonlinear fracture behavior. A protocol that addresses this nonlinearity is employed to measure healing efficiency.
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页码：205 / +
页数：5
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