High actuation properties of shape memory polymer composite actuator

被引：16
作者：
Basit, A. [1 ]
L'Hostis, G. [1 ]
Durand, B. [1 ]
机构：
[1] Univ Haute Alsace, CNRS, EAC 7189, LPMT, F-68093 Mulhouse, France
来源：
SMART MATERIALS AND STRUCTURES | 2013年 / 22卷 / 02期
关键词：
THERMOMECHANICAL CHARACTERIZATION; POLYURETHANE SERIES; COPOLYMER NETWORKS; HYBRID-COMPOSITES; SMART SYSTEMS; RECOVERY; POLY(EPSILON-CAPROLACTONE); NANOCOMPOSITES; SEGMENTS; BEHAVIOR;
D O I：
10.1088/0964-1726/22/2/025023
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The shape memory polymers (SMPs) possess two shapes: permanent shape and temporary shape. This property leads to replacement of shape memory alloys by SMPs in various applications. In this work, two properties, namely structure activeness and the shape memory property of 'controlled behavior composite material (CBCM)' plate and its comparison with the conventional symmetrical composite plate (SYM), are studied. The SMPC plates (CBCM and SYM) are manufactured using epoxy resin with a thermal glass transition temperature (T-g) of 130 degrees C. The shape memory properties of these composites are investigated (under three-point bending test) and compared by deforming them to the same displacement. Three types of recoveries are conducted: unconstrained recovery, constrained recovery, and partial recovery under load. It is found that by coupling the structure activeness (due to its asymmetry) and its shape memory property, higher activated displacement is obtained during the unconstrained recovery. Also, at a lower recovery temperature (90 degrees C) than the fixing temperature, a recovery close to 100% is obtained for CBCM, whereas for SYM it is only 25%. During constrained recovery, CBCM produces five times larger recovery force than SYM. In addition, higher actuation properties are demonstrated by calculating recovered work and recovery percentages during partial recovery under load.
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页数：11
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