Effect of Manganese on Radiation Vulcanization of Natural Rubber

Manganese was added as a promoter to investigate physico-mechanical properties of radiation-vulcanized natural rubber latex (RVNRL) films. RVNRL films were prepared by the addition of Mn with the concentration range 0–30 ppm to natural rubber latex and irradiated with various radiation doses (0–20 k...

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Main Authors:	Rahman, Md. Wasikur, Alam, Jahangir, Khan, Maksudur R.
Format:	Article
Language:	English
Published:	Taylor & Francis 2015
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/12598/ http://umpir.ump.edu.my/id/eprint/12598/ http://umpir.ump.edu.my/id/eprint/12598/ http://umpir.ump.edu.my/id/eprint/12598/1/Effect%20of%20Manganese%20on%20Radiation%20Vulcanization%20of%20Natural%20Rubber.pdf

id	ump-12598
recordtype	eprints
spelling	ump-125982018-01-16T02:56:14Z http://umpir.ump.edu.my/id/eprint/12598/ Effect of Manganese on Radiation Vulcanization of Natural Rubber Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. QD Chemistry Manganese was added as a promoter to investigate physico-mechanical properties of radiation-vulcanized natural rubber latex (RVNRL) films. RVNRL films were prepared by the addition of Mn with the concentration range 0–30 ppm to natural rubber latex and irradiated with various radiation doses (0–20 kGy). Tensile strength, tear strength, and cross-linking density of the irradiated rubber films increased with increasing the concentration of Mn ions as well as radiation doses. In contrast, elongation at break, permanent set, and swelling ratio of the films were decreased under the same conditions. The concentration of Mn ions and radiation doses were optimized and found to be 20 ppm and 12 kGy, respectively. The maximum tensile and tear strengths of irradiated rubber films were observed as 29.12 MPa and 44.78 N/mm, respectively at the optimum conditions. The mechanical properties of the films increased markedly with the addition of Mn until they attained the highest values of 33.88 MPa and 54.77 N/mm, respectively. These enhancements, which reached approximately 20% at the most favorable conditions, can be explained by the effect of transition metals in view of Fajan’s rules regarding the covalent character of ionic bonds and suggest that the higher the difference in charges between cation and anion, the higher the ability to form distortion or polarization of ions. Taylor & Francis 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12598/1/Effect%20of%20Manganese%20on%20Radiation%20Vulcanization%20of%20Natural%20Rubber.pdf Rahman, Md. Wasikur and Alam, Jahangir and Khan, Maksudur R. (2015) Effect of Manganese on Radiation Vulcanization of Natural Rubber. International Journal of Polymer Analysis and Characterization, 20 (5). pp. 406-413. ISSN 1023-666X http://dx.doi.org/10.1080/1023666X.2015.1033881 doi:10.1080/1023666X.2015.1033881
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. Effect of Manganese on Radiation Vulcanization of Natural Rubber
description	Manganese was added as a promoter to investigate physico-mechanical properties of radiation-vulcanized natural rubber latex (RVNRL) films. RVNRL films were prepared by the addition of Mn with the concentration range 0–30 ppm to natural rubber latex and irradiated with various radiation doses (0–20 kGy). Tensile strength, tear strength, and cross-linking density of the irradiated rubber films increased with increasing the concentration of Mn ions as well as radiation doses. In contrast, elongation at break, permanent set, and swelling ratio of the films were decreased under the same conditions. The concentration of Mn ions and radiation doses were optimized and found to be 20 ppm and 12 kGy, respectively. The maximum tensile and tear strengths of irradiated rubber films were observed as 29.12 MPa and 44.78 N/mm, respectively at the optimum conditions. The mechanical properties of the films increased markedly with the addition of Mn until they attained the highest values of 33.88 MPa and 54.77 N/mm, respectively. These enhancements, which reached approximately 20% at the most favorable conditions, can be explained by the effect of transition metals in view of Fajan’s rules regarding the covalent character of ionic bonds and suggest that the higher the difference in charges between cation and anion, the higher the ability to form distortion or polarization of ions.
format	Article
author	Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R.
author_facet	Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R.
author_sort	Rahman, Md. Wasikur
title	Effect of Manganese on Radiation Vulcanization of Natural Rubber
title_short	Effect of Manganese on Radiation Vulcanization of Natural Rubber
title_full	Effect of Manganese on Radiation Vulcanization of Natural Rubber
title_fullStr	Effect of Manganese on Radiation Vulcanization of Natural Rubber
title_full_unstemmed	Effect of Manganese on Radiation Vulcanization of Natural Rubber
title_sort	effect of manganese on radiation vulcanization of natural rubber
publisher	Taylor & Francis
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12598/ http://umpir.ump.edu.my/id/eprint/12598/ http://umpir.ump.edu.my/id/eprint/12598/ http://umpir.ump.edu.my/id/eprint/12598/1/Effect%20of%20Manganese%20on%20Radiation%20Vulcanization%20of%20Natural%20Rubber.pdf
first_indexed	2023-09-18T22:14:24Z
last_indexed	2023-09-18T22:14:24Z
_version_	1777415240747581440

Effect of Manganese on Radiation Vulcanization of Natural Rubber

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