Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates
Stimuli-responsive shape-memory ethylene-acrylic acid copolymer (EAA)/chloroprene rubber (CR) thermoplastic vulcanizates (TPVs) were prepared via dynamic vulcanization. Meanwhile, a simple and effective strategy was designed to achieve rapidly reconfigurable shape fixity and shape recovery for a hea...
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Budapest University of Technology
2020-03-01
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doaj-900650b489024eaa9cd766cca8de261f2020-11-25T00:44:53ZengBudapest University of Technology eXPRESS Polymer Letters1788-618X2020-03-0114328129310.3144/expresspolymlett.2020.24Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizatesF. F. LiuY. T. SunZ. B. WangStimuli-responsive shape-memory ethylene-acrylic acid copolymer (EAA)/chloroprene rubber (CR) thermoplastic vulcanizates (TPVs) were prepared via dynamic vulcanization. Meanwhile, a simple and effective strategy was designed to achieve rapidly reconfigurable shape fixity and shape recovery for a heat-triggered shape-memory polymer (HSMP), which was derived from a typical sea-island structured EAA/CR TPVs. Field emission scanning electron microscopy (FE-SEM) showed the average diameter of CR particles in EAA/CR TPVs was 3~8 µm. In this work, the mechanical properties results showed that the EAA/CR TPV had high tensile strength, indicating a strong interface interaction between EAA and CR, which would inevitably improve the shape recovery (SR) and shape fixing (SF) ability of TPVs. This HSMP exhibited the surprising shape-memory property (shape fixity ratio ~97%, shape recovery ratio ~95%, and fast recovery speed <30 s). The dynamic mechanical behavior and stress relaxation behavior of EAA/CR TPVs were characterized, and the results demonstrated that the high modulus value supported the improvement of SF ratios, and with the decrease continuously of EAA in the EAA/CR TPVs, the low-stress relaxation ratio stimulated the improvement of SR ratios of the EAA/CR TPVs. This novel HSMP expected to open up a wide range of potential applications in smart devices.http://www.expresspolymlett.com/letolt.php?file=EPL-0010270&mi=cdmechanical propertieschloroprene rubberethylene-acrylic acid copolymershape memory polymersthermoplastic vulcanizate |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
F. F. Liu Y. T. Sun Z. B. Wang |
spellingShingle |
F. F. Liu Y. T. Sun Z. B. Wang Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates eXPRESS Polymer Letters mechanical properties chloroprene rubber ethylene-acrylic acid copolymer shape memory polymers thermoplastic vulcanizate |
author_facet |
F. F. Liu Y. T. Sun Z. B. Wang |
author_sort |
F. F. Liu |
title |
Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates |
title_short |
Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates |
title_full |
Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates |
title_fullStr |
Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates |
title_full_unstemmed |
Facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates |
title_sort |
facile design of heat-triggered shape memory ethylene-acrylic acid copolymer/chloroprene rubber thermoplastic vulcanizates |
publisher |
Budapest University of Technology |
series |
eXPRESS Polymer Letters |
issn |
1788-618X |
publishDate |
2020-03-01 |
description |
Stimuli-responsive shape-memory ethylene-acrylic acid copolymer (EAA)/chloroprene rubber (CR) thermoplastic vulcanizates (TPVs) were prepared via dynamic vulcanization. Meanwhile, a simple and effective strategy was designed to achieve rapidly reconfigurable shape fixity and shape recovery for a heat-triggered shape-memory polymer (HSMP), which was derived from a typical sea-island structured EAA/CR TPVs. Field emission scanning electron microscopy (FE-SEM) showed the average diameter of CR particles in EAA/CR TPVs was 3~8 µm. In this work, the mechanical properties results showed that the EAA/CR TPV had high tensile strength, indicating a strong interface interaction between EAA and CR, which would inevitably improve the shape recovery (SR) and shape fixing (SF) ability of TPVs. This HSMP exhibited the surprising shape-memory property (shape fixity ratio ~97%, shape recovery ratio ~95%, and fast recovery speed <30 s). The dynamic mechanical behavior and stress relaxation behavior of EAA/CR TPVs were characterized, and the results demonstrated that the high modulus value supported the improvement of SF ratios, and with the decrease continuously of EAA in the EAA/CR TPVs, the low-stress relaxation ratio stimulated the improvement of SR ratios of the EAA/CR TPVs. This novel HSMP expected to open up a wide range of potential applications in smart devices. |
topic |
mechanical properties chloroprene rubber ethylene-acrylic acid copolymer shape memory polymers thermoplastic vulcanizate |
url |
http://www.expresspolymlett.com/letolt.php?file=EPL-0010270&mi=cd |
work_keys_str_mv |
AT ffliu faciledesignofheattriggeredshapememoryethyleneacrylicacidcopolymerchloroprenerubberthermoplasticvulcanizates AT ytsun faciledesignofheattriggeredshapememoryethyleneacrylicacidcopolymerchloroprenerubberthermoplasticvulcanizates AT zbwang faciledesignofheattriggeredshapememoryethyleneacrylicacidcopolymerchloroprenerubberthermoplasticvulcanizates |
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