Investigation of Polymer Degradation by Adding Magnesium

The effect of alkali metal magnesium on polymer degradation of physico-mechanical properties of radiation-vulcanized natural rubber latex (RVNRL) films was investigated. RVNRL films were prepared by the addition of Mg of different concentrations (0–30 ppm) to natural rubber latex and irradiation wit...

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Main Authors:	Rahman, Md. Wasikur, Alam, Jahangir, Khan, Maksudur R.
Format:	Article
Language:	English English
Published:	Taylor & Francis 2016
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/12593/ http://umpir.ump.edu.my/id/eprint/12593/ http://umpir.ump.edu.my/id/eprint/12593/ http://umpir.ump.edu.my/id/eprint/12593/1/Investigation%20of%20polymer%20degradation%20by%20addition%20of%20magnesium.pdf http://umpir.ump.edu.my/id/eprint/12593/7/Investigation%20of%20Polymer%20Degradation%20by%20Addition%20of%20Magnesium.pdf

id	ump-12593
recordtype	eprints
spelling	ump-125932018-01-16T02:35:11Z http://umpir.ump.edu.my/id/eprint/12593/ Investigation of Polymer Degradation by Adding Magnesium Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. TP Chemical technology The effect of alkali metal magnesium on polymer degradation of physico-mechanical properties of radiation-vulcanized natural rubber latex (RVNRL) films was investigated. RVNRL films were prepared by the addition of Mg of different concentrations (0–30 ppm) to natural rubber latex and irradiation with various radiation doses (0–20 kGy). The radiation doses were optimized (12 kGy), and the adverse effect of Mg was studied against a reference film prepared without metal. Tensile strength, tear strength, and cross-linking density of the irradiated rubber films were decreased with increasing metal ion concentrations and decreasing radiation doses. The mechanical properties of the films were reduced by nearly 10% for 30 ppm Mg ions and at the optimum dose. In contrast, elongation at break, permanent set, and swelling ratio of the films were increased at the same conditions. The maximum tensile and tear strengths of irradiated rubber films without additive were 29.33 MPa and 47.95 N/mm, respectively, at a radiation dose of 12 kGy, and these values were about six times higher than those of blank samples. With the addition of Mg, the corresponding values decrease continuously, and the minimum values were found to be 26.35 MPa and 42.675 N/mm, respectively. The effect of divalent alkali metal on polymer chain scission can be explained by the classical electron concept reported in this article. Taylor & Francis 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12593/1/Investigation%20of%20polymer%20degradation%20by%20addition%20of%20magnesium.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12593/7/Investigation%20of%20Polymer%20Degradation%20by%20Addition%20of%20Magnesium.pdf Rahman, Md. Wasikur and Alam, Jahangir and Khan, Maksudur R. (2016) Investigation of Polymer Degradation by Adding Magnesium. International Journal of Polymer Analysis and Characterization, 21 (2). pp. 156-162. ISSN 1023-666X http://dx.doi.org/10.1080/1023666X.2016.1128164 doi:10.1080/1023666X.2016.1128164
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. Investigation of Polymer Degradation by Adding Magnesium
description	The effect of alkali metal magnesium on polymer degradation of physico-mechanical properties of radiation-vulcanized natural rubber latex (RVNRL) films was investigated. RVNRL films were prepared by the addition of Mg of different concentrations (0–30 ppm) to natural rubber latex and irradiation with various radiation doses (0–20 kGy). The radiation doses were optimized (12 kGy), and the adverse effect of Mg was studied against a reference film prepared without metal. Tensile strength, tear strength, and cross-linking density of the irradiated rubber films were decreased with increasing metal ion concentrations and decreasing radiation doses. The mechanical properties of the films were reduced by nearly 10% for 30 ppm Mg ions and at the optimum dose. In contrast, elongation at break, permanent set, and swelling ratio of the films were increased at the same conditions. The maximum tensile and tear strengths of irradiated rubber films without additive were 29.33 MPa and 47.95 N/mm, respectively, at a radiation dose of 12 kGy, and these values were about six times higher than those of blank samples. With the addition of Mg, the corresponding values decrease continuously, and the minimum values were found to be 26.35 MPa and 42.675 N/mm, respectively. The effect of divalent alkali metal on polymer chain scission can be explained by the classical electron concept reported in this article.
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	Investigation of Polymer Degradation by Adding Magnesium
title_short	Investigation of Polymer Degradation by Adding Magnesium
title_full	Investigation of Polymer Degradation by Adding Magnesium
title_fullStr	Investigation of Polymer Degradation by Adding Magnesium
title_full_unstemmed	Investigation of Polymer Degradation by Adding Magnesium
title_sort	investigation of polymer degradation by adding magnesium
publisher	Taylor & Francis
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/12593/ http://umpir.ump.edu.my/id/eprint/12593/ http://umpir.ump.edu.my/id/eprint/12593/ http://umpir.ump.edu.my/id/eprint/12593/1/Investigation%20of%20polymer%20degradation%20by%20addition%20of%20magnesium.pdf http://umpir.ump.edu.my/id/eprint/12593/7/Investigation%20of%20Polymer%20Degradation%20by%20Addition%20of%20Magnesium.pdf
first_indexed	2023-09-18T22:14:24Z
last_indexed	2023-09-18T22:14:24Z
_version_	1777415240151990272

Investigation of Polymer Degradation by Adding Magnesium

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