Shape-Memory Natural Rubber: An Exceptional Material for Strain and Energy Storage

被引：105

作者：

Heuwers, Benjamin ^{[1
]}

Beckel, Anna ^{[1
]}

Krieger, Andreas ^{[1
]}

Katzenberg, Frank ^{[1
]}

Tiller, Joerg C. ^{[1
]}

机构：

[1] TU Dortmund, Dept Biochem & Chem Engn, D-44221 Dortmund, Germany

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2013年 / 214卷 / 08期

关键词：

elastomers; energy storage; shape memory; stimuli-sensitive polymers; strain-induced crystallization; TEMPERATURE-MEMORY; POLYMER NETWORKS; NANOCOMPOSITES; CRYSTALLIZATION; DEFORMATION; TRANSITION; CRYSTALS;

D O I：

10.1002/macp.201200649

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

Shape-memory polymers (SMPs) are smart, responsive materials with numerous potential applications. Based on previously introduced shape-memory natural rubber (SMNR), which shows exceptional properties such as strain storage of 1000%, cold storage, cold programmability, and mechanical and thermal triggers tunable both during and after programming, different SMNRs regarding their shape-memory parameters are investigated. Furthermore, their energy-storage capability and their mechanical properties are explored. SMNRs show fixity ratios of up to 94% and excellent recovery ratios of up to 100% whereas strains even above 1000% can be stored. Energies of up to 4.88 J g1 can be stored with efficiencies of up to 53.30%. Further, the Young's modulus of SMNR can be switched by two orders of magnitude upon triggering or programming.

引用

页码：912 / 923

页数：12

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