Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends

Polylactic acid (PLA)/Epoxidized natural rubber (ENR-50) blends were prepared by melt extrusion followed by injection molding to fabricate the test samples. The effect of ENR-50 loadings on the morphological, mechanical, chemical resistance and water absorption properties of the blends were studied...

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Main Authors: Mat Uzir Wahit, Azman Hassan, Akos Noel Ibrahim, Nurhayati Ahmad Zawawi, Kayathre Kunasegeran
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2015
Online Access:http://journalarticle.ukm.my/9371/
http://journalarticle.ukm.my/9371/
http://journalarticle.ukm.my/9371/1/11_Mat_Uzir.pdf
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spelling ukm-93712016-12-14T06:49:43Z http://journalarticle.ukm.my/9371/ Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends Mat Uzir Wahit, Azman Hassan, Akos Noel Ibrahim, Nurhayati Ahmad Zawawi, Kayathre Kunasegeran, Polylactic acid (PLA)/Epoxidized natural rubber (ENR-50) blends were prepared by melt extrusion followed by injection molding to fabricate the test samples. The effect of ENR-50 loadings on the morphological, mechanical, chemical resistance and water absorption properties of the blends were studied using standard methods. The toughness of the blend improved with ENR loading up to 20 wt. % but flexural and tensile strength decreased. The balanced mechanical properties were obtained at 20 wt. % ENR-50 loading. SEM showed good distribution and increased ENR particle size as ENR content increased from 10 to 30 wt. %. The differential scanning calorimeter (DSC) showed a steady drop in crystallization temperature (Tc) as ENR content increases while the glass transition temperature (Tg) remained unchanged. Water absorption was observed to increase with ENR loadings. Increase in ENR content was also observed to reduce the chemical resistance of the blends. Universiti Kebangsaan Malaysia 2015-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/9371/1/11_Mat_Uzir.pdf Mat Uzir Wahit, and Azman Hassan, and Akos Noel Ibrahim, and Nurhayati Ahmad Zawawi, and Kayathre Kunasegeran, (2015) Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends. Sains Malaysiana, 44 (11). pp. 1615-1623. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil11_2015/KandunganJilid44Bil11_2015.html
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institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
description Polylactic acid (PLA)/Epoxidized natural rubber (ENR-50) blends were prepared by melt extrusion followed by injection molding to fabricate the test samples. The effect of ENR-50 loadings on the morphological, mechanical, chemical resistance and water absorption properties of the blends were studied using standard methods. The toughness of the blend improved with ENR loading up to 20 wt. % but flexural and tensile strength decreased. The balanced mechanical properties were obtained at 20 wt. % ENR-50 loading. SEM showed good distribution and increased ENR particle size as ENR content increased from 10 to 30 wt. %. The differential scanning calorimeter (DSC) showed a steady drop in crystallization temperature (Tc) as ENR content increases while the glass transition temperature (Tg) remained unchanged. Water absorption was observed to increase with ENR loadings. Increase in ENR content was also observed to reduce the chemical resistance of the blends.
format Article
author Mat Uzir Wahit,
Azman Hassan,
Akos Noel Ibrahim,
Nurhayati Ahmad Zawawi,
Kayathre Kunasegeran,
spellingShingle Mat Uzir Wahit,
Azman Hassan,
Akos Noel Ibrahim,
Nurhayati Ahmad Zawawi,
Kayathre Kunasegeran,
Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
author_facet Mat Uzir Wahit,
Azman Hassan,
Akos Noel Ibrahim,
Nurhayati Ahmad Zawawi,
Kayathre Kunasegeran,
author_sort Mat Uzir Wahit,
title Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
title_short Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
title_full Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
title_fullStr Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
title_full_unstemmed Mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
title_sort mechanical, thermal and chemical resistance of epoxidized natural rubber toughened polylactic acid blends
publisher Universiti Kebangsaan Malaysia
publishDate 2015
url http://journalarticle.ukm.my/9371/
http://journalarticle.ukm.my/9371/
http://journalarticle.ukm.my/9371/1/11_Mat_Uzir.pdf
first_indexed 2023-09-18T19:54:40Z
last_indexed 2023-09-18T19:54:40Z
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