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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Taylor & Francis
2016
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| Online Access: | 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 http://umpir.ump.edu.my/id/eprint/12593/ http://dx.doi.org/10.1080/1023666X.2016.1128164 |
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| author | Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. |
| author_facet | Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. |
| author_sort | Rahman, Md. Wasikur |
| building | UMPSA Library |
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| content_provider | Universiti Malaysia Pahang Al-Sultan Abdullah |
| content_source | UMPSA Institutional Repository |
| continent | Asia |
| country | Malaysia |
| 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 |
| id | my.ump.umpir.12593 |
| institution | Universiti Malaysia Pahang |
| language | en en |
| publishDate | 2016 |
| publisher | Taylor & Francis |
| record_format | eprints |
| spelling | my.ump.umpir.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. (Published) http://dx.doi.org/10.1080/1023666X.2016.1128164 doi:10.1080/1023666X.2016.1128164 |
| spellingShingle | TP Chemical technology Rahman, Md. Wasikur Alam, Jahangir Khan, Maksudur R. Investigation of Polymer Degradation by Adding Magnesium |
| title | 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_short | Investigation of Polymer Degradation by Adding Magnesium |
| title_sort | investigation of polymer degradation by adding magnesium |
| topic | TP Chemical technology |
| url | 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 http://umpir.ump.edu.my/id/eprint/12593/ http://dx.doi.org/10.1080/1023666X.2016.1128164 |
| url_provider | http://umpir.ump.edu.my/ |