Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex

Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex

Biodegradable polymeric films, obtained from chitosan/natural rubber latex (CS/NRL) blends with different compositions, have been prepared by wetting process. The blends were characterized by dynamic mechanical thermal analysis (DMTA) and found that the CS/NRL blends are thermodynamically incompatib...

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Main Author: Wirach Taweepreda
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2014
Online Access:http://journalarticle.ukm.my/6853/
http://journalarticle.ukm.my/6853/
http://journalarticle.ukm.my/6853/1/11_Wirach.pdf
id ukm-6853
recordtype eprints
spelling ukm-68532016-12-14T06:42:23Z http://journalarticle.ukm.my/6853/ Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex Wirach Taweepreda, Biodegradable polymeric films, obtained from chitosan/natural rubber latex (CS/NRL) blends with different compositions, have been prepared by wetting process. The blends were characterized by dynamic mechanical thermal analysis (DMTA) and found that the CS/NRL blends are thermodynamically incompatible. This is evident from the presence of two glass transitions, corresponding to CS and NRL phases in the blend. The mechanical properties of the CS/NRL blends were improved with increasing the amount of chitosan and after surface treatment with sulphuric acid due to the sulfonate ionic interaction. The dielectric properties was determined using Precision LCR meter in the frequency range 75 kHz up to 30 MHz. After CS/NRL surface treatment with sulphuric acid at high content of chitosan showed the highest dielectric constant. The surface properties of the CS/NRL blend films before and after surface treatment were confirmed by atomic force microscopy (AFM), respectively. Universiti Kebangsaan Malaysia 2014-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6853/1/11_Wirach.pdf Wirach Taweepreda, (2014) Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex. Sains Malaysiana, 43 (2). pp. 241-245. ISSN 0126-6039 http://www.ukm.my/jsm
repository_type Digital Repository
institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
description Biodegradable polymeric films, obtained from chitosan/natural rubber latex (CS/NRL) blends with different compositions, have been prepared by wetting process. The blends were characterized by dynamic mechanical thermal analysis (DMTA) and found that the CS/NRL blends are thermodynamically incompatible. This is evident from the presence of two glass transitions, corresponding to CS and NRL phases in the blend. The mechanical properties of the CS/NRL blends were improved with increasing the amount of chitosan and after surface treatment with sulphuric acid due to the sulfonate ionic interaction. The dielectric properties was determined using Precision LCR meter in the frequency range 75 kHz up to 30 MHz. After CS/NRL surface treatment with sulphuric acid at high content of chitosan showed the highest dielectric constant. The surface properties of the CS/NRL blend films before and after surface treatment were confirmed by atomic force microscopy (AFM), respectively.
format Article
author Wirach Taweepreda,
spellingShingle Wirach Taweepreda,
Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
author_facet Wirach Taweepreda,
author_sort Wirach Taweepreda,
title Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
title_short Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
title_full Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
title_fullStr Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
title_full_unstemmed Dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
title_sort dynamic mechanical and dielectric properties of modified surface chitosan/natural rubber latex
publisher Universiti Kebangsaan Malaysia
publishDate 2014
url http://journalarticle.ukm.my/6853/
http://journalarticle.ukm.my/6853/
http://journalarticle.ukm.my/6853/1/11_Wirach.pdf
first_indexed 2023-09-18T19:48:03Z
last_indexed 2023-09-18T19:48:03Z
_version_ 1777406032643883008

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