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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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Main Authors: Liau, Cha Ping, Ahmad @ Ayob, Mansor, Shameli, Kamyar, Wan Yunus, Wan Md. Zin, Ibrahim, Nor Azowa, Zainuddin, Norhazlin, Then, Yoon Yee
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2014
Online Access:http://psasir.upm.edu.my/id/eprint/34969/1/34969.pdf
http://psasir.upm.edu.my/id/eprint/34969/
https://www.hindawi.com/journals/tswj/2014/572726/abs/
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spelling my.upm.eprints.349692016-10-11T02:41:09Z http://psasir.upm.edu.my/id/eprint/34969/ Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites Liau, Cha Ping Ahmad @ Ayob, Mansor Shameli, Kamyar Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Zainuddin, Norhazlin Then, Yoon Yee 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 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/34969/1/34969.pdf Liau, Cha Ping and Ahmad @ Ayob, Mansor and Shameli, Kamyar and Wan Yunus, Wan Md. Zin and Ibrahim, Nor Azowa and Zainuddin, Norhazlin and Then, Yoon Yee (2014) Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites. The Scientific World Journal, 2014. art. no. 572726. pp. 1-9. ISSN 2356-6140; ESSN: 1537-744X https://www.hindawi.com/journals/tswj/2014/572726/abs/ 10.1155/2014/572726
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
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.
format Article
author Liau, Cha Ping
Ahmad @ Ayob, Mansor
Shameli, Kamyar
Wan Yunus, Wan Md. Zin
Ibrahim, Nor Azowa
Zainuddin, Norhazlin
Then, Yoon Yee
spellingShingle Liau, Cha Ping
Ahmad @ Ayob, Mansor
Shameli, Kamyar
Wan Yunus, Wan Md. Zin
Ibrahim, Nor Azowa
Zainuddin, Norhazlin
Then, Yoon Yee
Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites
author_facet Liau, Cha Ping
Ahmad @ Ayob, Mansor
Shameli, Kamyar
Wan Yunus, Wan Md. Zin
Ibrahim, Nor Azowa
Zainuddin, Norhazlin
Then, Yoon Yee
author_sort Liau, Cha Ping
title Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites
title_short 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_sort preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites
publisher Hindawi Publishing Corporation
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/34969/1/34969.pdf
http://psasir.upm.edu.my/id/eprint/34969/
https://www.hindawi.com/journals/tswj/2014/572726/abs/
_version_ 1643831313815306240
score 13.211869

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