TY - GEN
T1 - Modeling of polyurethane's shape memory effects and recovery time under different recovery temperatures
AU - Luo, Ling
AU - Jia, Yuxi
AU - Wang, Xiaoxia
AU - Wang, Zhaojing
AU - Gao, Junpeng
AU - Yi, Xiaosu
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2014
Y1 - 2014
N2 - Shape memory polymer (SMP), which has attracted lots of attentions recently, is a kind of smart material. The thermally induced SMPs can remember two different shapes because of the combined functions of polymer's molecular architecture, morphology and the specific multi-step processing technology named shape memory creation programming. This paper aims to analyze Polyurethane's shape memory properties based on the viscoelastic theory. First, the Polyurethane's creep and relaxation performances are simulated using Maxwell-Weichert model. The simulated results of relaxation process are found in good agreement with the experimental results. Later, same model is used to describe Polyurethane's shape memory effects in strain-controlled situation. As the results show, Polyurethane's shape recovery ratios are almost 100%, whereas shape fixing properties are relatively poor. Moreover, as shown by the simulated results of recovery time under different recovery temperatures, recovery time shortens along with the increase of recovery temperature.
AB - Shape memory polymer (SMP), which has attracted lots of attentions recently, is a kind of smart material. The thermally induced SMPs can remember two different shapes because of the combined functions of polymer's molecular architecture, morphology and the specific multi-step processing technology named shape memory creation programming. This paper aims to analyze Polyurethane's shape memory properties based on the viscoelastic theory. First, the Polyurethane's creep and relaxation performances are simulated using Maxwell-Weichert model. The simulated results of relaxation process are found in good agreement with the experimental results. Later, same model is used to describe Polyurethane's shape memory effects in strain-controlled situation. As the results show, Polyurethane's shape recovery ratios are almost 100%, whereas shape fixing properties are relatively poor. Moreover, as shown by the simulated results of recovery time under different recovery temperatures, recovery time shortens along with the increase of recovery temperature.
KW - Maxwell-weichert model
KW - Recovery time
KW - Shape memory effects
UR - http://www.scopus.com/inward/record.url?scp=84885763063&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.575-576.95
DO - 10.4028/www.scientific.net/KEM.575-576.95
M3 - Conference contribution
AN - SCOPUS:84885763063
SN - 9783037858295
T3 - Key Engineering Materials
SP - 95
EP - 100
BT - Recent Highlights in Advanced Materials
PB - Trans Tech Publications Ltd
T2 - 2nd International Congress on Advanced Materials, AM 2013
Y2 - 16 May 2013 through 19 May 2013
ER -