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Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite
Shape memory polymer (SMP) nanocomposites with a fast electro-actuation speed were prepared by dispersing Cu-decorated carbon nanotubes (CNTs) (Cu-CNTs, 1 wt %, 2 wt %, and 3 wt %) in a polylactic acid (PLA)/epoxidized soybean oil (ESO) blend matrix. The shape memory effect (SME) induced by an elect...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5512920/ https://www.ncbi.nlm.nih.gov/pubmed/28793570 http://dx.doi.org/10.3390/ma8095313 |
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author | Alam, Javed Khan, Aslam Alam, Manawwer Mohan, Raja |
author_facet | Alam, Javed Khan, Aslam Alam, Manawwer Mohan, Raja |
author_sort | Alam, Javed |
collection | PubMed |
description | Shape memory polymer (SMP) nanocomposites with a fast electro-actuation speed were prepared by dispersing Cu-decorated carbon nanotubes (CNTs) (Cu-CNTs, 1 wt %, 2 wt %, and 3 wt %) in a polylactic acid (PLA)/epoxidized soybean oil (ESO) blend matrix. The shape memory effect (SME) induced by an electrical current was investigated by a fold-deploy “U”-shape bending test. In addition, the Cu-CNT dispersed PLA/ESO nanocomposite was characterized by atomic force microscopy (AFM), dynamic mechanical analysis (DMA) and tensile and electrical measurements. The results demonstrated that the SME was dependent on the Cu-CNT content in the nanocomposites. When comparing the SMEs of the nanocomposite specimens with different Cu-CNT contents, the 2 wt % Cu-CNT dispersed system exhibited a shape recovery as high as 98% within 35 s due to its higher electrical conductivity that results from uniform Cu-CNT dispersion. However, the nanocomposites that contained 1 wt % and 3 wt % Cu-CNTs required 75 s and 63 s, respectively, to reach a maximum recovery level. In addition, the specimens exhibited better mechanical properties after the addition of Cu-CNTs. |
format | Online Article Text |
id | pubmed-5512920 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-55129202017-07-28 Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite Alam, Javed Khan, Aslam Alam, Manawwer Mohan, Raja Materials (Basel) Article Shape memory polymer (SMP) nanocomposites with a fast electro-actuation speed were prepared by dispersing Cu-decorated carbon nanotubes (CNTs) (Cu-CNTs, 1 wt %, 2 wt %, and 3 wt %) in a polylactic acid (PLA)/epoxidized soybean oil (ESO) blend matrix. The shape memory effect (SME) induced by an electrical current was investigated by a fold-deploy “U”-shape bending test. In addition, the Cu-CNT dispersed PLA/ESO nanocomposite was characterized by atomic force microscopy (AFM), dynamic mechanical analysis (DMA) and tensile and electrical measurements. The results demonstrated that the SME was dependent on the Cu-CNT content in the nanocomposites. When comparing the SMEs of the nanocomposite specimens with different Cu-CNT contents, the 2 wt % Cu-CNT dispersed system exhibited a shape recovery as high as 98% within 35 s due to its higher electrical conductivity that results from uniform Cu-CNT dispersion. However, the nanocomposites that contained 1 wt % and 3 wt % Cu-CNTs required 75 s and 63 s, respectively, to reach a maximum recovery level. In addition, the specimens exhibited better mechanical properties after the addition of Cu-CNTs. MDPI 2015-09-18 /pmc/articles/PMC5512920/ /pubmed/28793570 http://dx.doi.org/10.3390/ma8095313 Text en © 2015 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 license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Alam, Javed Khan, Aslam Alam, Manawwer Mohan, Raja Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite |
title | Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite |
title_full | Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite |
title_fullStr | Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite |
title_full_unstemmed | Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite |
title_short | Electroactive Shape Memory Property of a Cu-decorated CNT Dispersed PLA/ESO Nanocomposite |
title_sort | electroactive shape memory property of a cu-decorated cnt dispersed pla/eso nanocomposite |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5512920/ https://www.ncbi.nlm.nih.gov/pubmed/28793570 http://dx.doi.org/10.3390/ma8095313 |
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