期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 115, 期 6, 页码 3217-3229出版社
WILEY-BLACKWELL
DOI: 10.1002/app.31413
关键词
macroporous polymers; mechanical properties; polyurethanes; stimuli-sensitive polymers; thermosets
资金
- U.S. Department of Energy [DE-AC04-94AL85000]
The shape-memory polymer performance of urethane foams compressed under a variety of conditions was characterized. The foams were water-blown thermosets with a closed-cell structure and ranged in density from about 0.25 to 0.75 g/cm(3). Compressive deformations were carried out over a range of strain levels, temperatures, and lateral constraints. Recovery stresses measured between fixed platens were as high as 4 MPa. Recovery strains, measured against loads up to 0.13 MPa, demonstrated the effects of various parameters. The results suggest that compression near the foam glass-transition temperature provided optimal performance. Foams with densities of about 0.5 g/cc and compressed 50% provided a useful balance (time, strain, and load) in the recovery performance. (C) 2009 Wiley Periodicals, Inc.(dagger) J Appl Polym Sci 115: 3217-3229, 2010
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据