Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam

In this paper, a thermo-responsive shape memory effect in a polyvinyl chloride thermoset foam is characterized. Excellent shape recovery performance is observed in foam samples programmed both at room temperature and above their transition temperature. The conversion of porous structures in the foam...

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Detalles Bibliográficos
Autores principales: Wang, Tao Xi, Chang, Lu Lu, Geng, Yun Hui, Shen, Xing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7563293/
https://www.ncbi.nlm.nih.gov/pubmed/32899892
http://dx.doi.org/10.3390/polym12092025
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author Wang, Tao Xi
Chang, Lu Lu
Geng, Yun Hui
Shen, Xing
author_facet Wang, Tao Xi
Chang, Lu Lu
Geng, Yun Hui
Shen, Xing
author_sort Wang, Tao Xi
collection PubMed
description In this paper, a thermo-responsive shape memory effect in a polyvinyl chloride thermoset foam is characterized. Excellent shape recovery performance is observed in foam samples programmed both at room temperature and above their transition temperature. The conversion of porous structures in the foam from closed-cell to open-cell after a shape memory effect cycle is revealed via a series of specially designed oil-dripping experiments and optical images of the micro pores. Programming the strain higher than 20% results in an apparent increase in open-cell level, whereas programming temperatures have almost no influence.
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spelling pubmed-75632932020-10-29 Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam Wang, Tao Xi Chang, Lu Lu Geng, Yun Hui Shen, Xing Polymers (Basel) Article In this paper, a thermo-responsive shape memory effect in a polyvinyl chloride thermoset foam is characterized. Excellent shape recovery performance is observed in foam samples programmed both at room temperature and above their transition temperature. The conversion of porous structures in the foam from closed-cell to open-cell after a shape memory effect cycle is revealed via a series of specially designed oil-dripping experiments and optical images of the micro pores. Programming the strain higher than 20% results in an apparent increase in open-cell level, whereas programming temperatures have almost no influence. MDPI 2020-09-04 /pmc/articles/PMC7563293/ /pubmed/32899892 http://dx.doi.org/10.3390/polym12092025 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Tao Xi
Chang, Lu Lu
Geng, Yun Hui
Shen, Xing
Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam
title Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam
title_full Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam
title_fullStr Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam
title_full_unstemmed Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam
title_short Thermo-Responsive Shape Memory Effect and Conversion of Porous Structure in a Polyvinyl Chloride Foam
title_sort thermo-responsive shape memory effect and conversion of porous structure in a polyvinyl chloride foam
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7563293/
https://www.ncbi.nlm.nih.gov/pubmed/32899892
http://dx.doi.org/10.3390/polym12092025
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