Two-Way Shape Memory Effect of a Shape Memory Composite Strip

被引：1
|
作者：
Du, Haiyang [1 ]
Yao, Yongtao [2 ]
Liu, Yang [1 ]
Zhao, Wei [3 ]
机构：
[1] Hebei Univ Engn, Sch Civil Engn, Handan 056038, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composite Special E, Harbin 150001, Peoples R China
[3] Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 08期
关键词：
rubber; shape memory polymer; shape memory alloy; two-way shape memory effect; application; ALLOY; POLYMER; ACTUATION; COMPLIANT; DESIGN; SMA;
D O I：
10.3390/app13084715
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, a NiTi shape memory alloy (SMA) wire was embedded into a rubber/shape memory polymer (SMP) soft matrix to form a composite strip with a two-way reversible bending behavior. First, the elastic moduli of SMA wire were characterized as increasing about 3 times (18.6 GPa at martensite phase and 50.1 GPa at austenite phase) from 25 degrees C to 90 degrees C. Then, an SMA composite strip using SMP to replace the rubber matrix was fabricated to significantly improve the load-bearing ability (16-fold) at 28 degrees C. After that, the good two-way bending behaviors of the rubber/SMP-based SMA strip with high shape deploying ratio above 80% were demonstrated. Finally, the application of rubber/SMP-based composite strips in a space-deployable antenna model with two-way reversible bending behavior was developed and demonstrated through a heating and cooling temperature cycle.
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页数：14
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