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Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites

Polyhydroxybutyrate (PHB)/polycaprolactone (PCL)/stearate Mg-Al layered double hydroxide (LDH) nanocomposites were prepared via solution casting intercalation method. Coprecipitation method was used to prepare the anionic clay Mg-Al LDH from nitrate salt solution. Modification of nitrate anions by s...

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Autores principales: Liau, Cha Ping, Bin Ahmad, Mansor, Shameli, Kamyar, Yunus, Wan Md Zin Wan, Ibrahim, Nor Azowa, Zainuddin, Norhazlin, Then, Yoon Yee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926308/
https://www.ncbi.nlm.nih.gov/pubmed/24600329
http://dx.doi.org/10.1155/2014/572726
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author Liau, Cha Ping
Bin Ahmad, Mansor
Shameli, Kamyar
Yunus, Wan Md Zin Wan
Ibrahim, Nor Azowa
Zainuddin, Norhazlin
Then, Yoon Yee
author_facet Liau, Cha Ping
Bin Ahmad, Mansor
Shameli, Kamyar
Yunus, Wan Md Zin Wan
Ibrahim, Nor Azowa
Zainuddin, Norhazlin
Then, Yoon Yee
author_sort Liau, Cha Ping
collection PubMed
description Polyhydroxybutyrate (PHB)/polycaprolactone (PCL)/stearate Mg-Al layered double hydroxide (LDH) nanocomposites were prepared via solution casting intercalation method. Coprecipitation method was used to prepare the anionic clay Mg-Al LDH from nitrate salt solution. Modification of nitrate anions by stearate anions between the LDH layers via ion exchange reaction. FTIR spectra showed the presence of carboxylic acid (COOH) group which indicates that stearate anions were successfully intercalated into the Mg-Al LDH. The formation of nanocomposites only involves physical interaction as there are no new functional groups or new bonding formed. X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicated that the mixtures of nanocomposites are intercalated and exfoliated types. XRD results showed increasing of basal spacing from 8.66 to 32.97 Å in modified stearate Mg-Al LDH, and TEM results revealed that the stearate Mg-Al LDH layers are homogeneously distributed in the PHB/PCL polymer blends matrix. Enhancement in 300% elongation at break and 66% tensile strength in the presence of 1.0 wt % of the stearate Mg-Al LDH as compare with PHB/PCL blends. Scanning electron microscopy (SEM) proved that clay improves compatibility between polymer matrix and the best ratio 80PHB/20PCL/1stearate Mg-Al LDH surface is well dispersed and stretched before it breaks.
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spelling pubmed-39263082014-03-05 Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites Liau, Cha Ping Bin Ahmad, Mansor Shameli, Kamyar Yunus, Wan Md Zin Wan Ibrahim, Nor Azowa Zainuddin, Norhazlin Then, Yoon Yee ScientificWorldJournal Research Article Polyhydroxybutyrate (PHB)/polycaprolactone (PCL)/stearate Mg-Al layered double hydroxide (LDH) nanocomposites were prepared via solution casting intercalation method. Coprecipitation method was used to prepare the anionic clay Mg-Al LDH from nitrate salt solution. Modification of nitrate anions by stearate anions between the LDH layers via ion exchange reaction. FTIR spectra showed the presence of carboxylic acid (COOH) group which indicates that stearate anions were successfully intercalated into the Mg-Al LDH. The formation of nanocomposites only involves physical interaction as there are no new functional groups or new bonding formed. X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicated that the mixtures of nanocomposites are intercalated and exfoliated types. XRD results showed increasing of basal spacing from 8.66 to 32.97 Å in modified stearate Mg-Al LDH, and TEM results revealed that the stearate Mg-Al LDH layers are homogeneously distributed in the PHB/PCL polymer blends matrix. Enhancement in 300% elongation at break and 66% tensile strength in the presence of 1.0 wt % of the stearate Mg-Al LDH as compare with PHB/PCL blends. Scanning electron microscopy (SEM) proved that clay improves compatibility between polymer matrix and the best ratio 80PHB/20PCL/1stearate Mg-Al LDH surface is well dispersed and stretched before it breaks. Hindawi Publishing Corporation 2014-01-29 /pmc/articles/PMC3926308/ /pubmed/24600329 http://dx.doi.org/10.1155/2014/572726 Text en Copyright © 2014 Cha Ping Liau et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Liau, Cha Ping
Bin Ahmad, Mansor
Shameli, Kamyar
Yunus, Wan Md Zin Wan
Ibrahim, Nor Azowa
Zainuddin, Norhazlin
Then, Yoon Yee
Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites
title Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites
title_full Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites
title_fullStr Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites
title_full_unstemmed Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites
title_short Preparation and Characterization of Polyhydroxybutyrate/Polycaprolactone Nanocomposites
title_sort preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926308/
https://www.ncbi.nlm.nih.gov/pubmed/24600329
http://dx.doi.org/10.1155/2014/572726
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