Chemical Structure Changes and Correlation Analysis of High Density Polyethylene after Natural and Xenon Aging

Jun Jun Guo; Hua Yan; Zhi De Hu; Jian Jian Yang

doi:10.4028/www.scientific.net/MSF.809-810.323

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HomeMaterials Science ForumMaterials Science Forum Vols. 809-810Chemical Structure Changes and Correlation...

Chemical Structure Changes and Correlation Analysis of High Density Polyethylene after Natural and Xenon Aging

Abstract:

Elucidation of the chemical structure changes that take place of high density polyethylene (HDPE) used as rotational packaging case by attenuated total reflection infrared spectroscopy (ATR-FTIR), when natural aging of Lasa Tibet and xenon aging. The variations of carbonyl index (CI), hydroxyl index (HI), branching degree (N) and crystallinity (Xc) have been studied from qualitative and quantitative. Finally, the correlations between natural and xenon aging have been closely followed. It found that the oxidation and growth of unsaturated compounds play a leading role in the natural aging progress, but the polymeric chain scission is weak effect. However, the samples show a slower growth of unsaturated compounds and a sharp increase in polymeric chain scission after xenon aging. The CI, HI and N increased generally in a line fashion after natural and xenon aging while the Xc changes little.

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Materials Science Forum (Volumes 809-810)

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323-329

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https://doi.org/10.4028/www.scientific.net/MSF.809-810.323

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December 2014

Authors:

Jun Jun Guo, Hua Yan*, Zhi De Hu, Jian Jian Yang

Keywords:

ATR-FTIR, Chemical Structure, Correlation, Natural Aging, Xenon Aging

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