Yu, Long and Chee, Kiong Siew and Liu, Xingxun and Eustathios Petinakis and Stuart Bateman and Parveen Sangwan and Anne Ammala and Katherine Dean and Susan Wong-Holmes and Yuan, Qiang and Farid Samsudin and Zulkifli Ahamid (2013) Enhancement of pro-degradant performance in polyethylene/ starch blends as a function of distribution. Journal of Applied Polymer Science, 128 (1). pp. 591-596. ISSN 0021-8995
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Abstract
The effect of pro-degradant distribution in polyethylene (PE)/starch blends on ultraviolet (UV) photo-oxidative degradation was investigated. Two kinds of pro-degradants, Fe and Co-based, were used in this study. The distribution of pro-degradants in the different phases was varied by a dual step process using a side-feed on a reactive extruder. The variation in mechanical properties and evaluation of carbonyl groups by FTIR were conducted to investigate the effect of degradation following exposure to UV photo-oxidative degradation. It was found that the variation in mechanical properties was higher when the pro-degradants were distributed in the PE phase. The concentration of carbonyl groups increased as a function of UV exposure, and the concentration of carbonyl groups was higher when the pro-degradants were distributed in the PE phase. Micro-cracking was observed on the interface between starch and PE after adding the pro-degradants. When the pro-degradants were distributed in high-density polyethylene (HDPE) phase, the micro-cracks mainly appeared in HDPE matrix, and the density of micro-crack was higher. In general, the function of the pro-degradants in PE/starch blends was enhanced when their distribution was varied within HDPE phase.
| Item Type: | Article |
|---|---|
| Keyword: | polyethylene, pro-degradant distribution, ultraviolet (UV) |
| Subjects: | Q Science > Q Science (General) |
| Department: | FACULTY > Faculty of Food Science and Nutrition |
| Depositing User: | ADMIN ADMIN |
| Date Deposited: | 11 May 2016 14:07 |
| Last Modified: | 13 Oct 2017 14:24 |
| URI: | https://eprints.ums.edu.my/id/eprint/12587 |
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