A novel approach to predict the recovery time of shape memory polymers

被引：36

作者：

Bonner, M. ^{[1
]}

de Oca, H. Montes ^{[2
]}

Brown, M. ^{[2
]}

Ward, I. M. ^{[1
]}

机构：

[1] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

[2] Grp Res Ctr, York YO10 5DF, N Yorkshire, England

来源：

POLYMER | 2010年 / 51卷 / 06期

关键词：

Shape memory polymer; Polymer physics; Recovery; AMORPHOUS POLYMERS; MODEL; DEFORMATION;

D O I：

10.1016/j.polymer.2010.01.058

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：

In this paper a novel approach is presented for prediction of the recovery time for a shape memory polymer. The Transient Stress Dip Tests of Fotheringham and Cherry are used to determine the two parameters of a Kelvin-Voigt element. The characteristic retardation time of this element can then be calculated to predict the recovery time. It is shown that this approach is successful in predicting the recovery times for a shape memory polymer drawn and recovered under a range of temperatures. Furthermore it is shown that the ratio of the recovery stress to the draw stress is independent of the drawing conditions to a very good approximation. (C) 2010 Elsevier Ltd All rights reserved.

引用

页码：1432 / 1436

页数：5

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