Photodegradation of polyethylene: comparison of various photoinitiators in natural weathering conditions

doi:10.1016/0141-3910(92)90165-2

Polymer Degradation and Stability

Volume 37, Issue 3, 1992, Pages 233-245

https://doi.org/10.1016/0141-3910(92)90165-2 Get rights and content

Abstract

Thin polyethylene films containing various additives as photoinitiators have been photooxidized in natural weathering conditions and under accelerated conditions using xenon radiation. The photoinitiators include iron carboxylate, allyl ether and ester and various aryl- and aralkylketones. Main chain scission is the dominant process in natural weathering conditions. The formation of cross-links is nevertheless detected by GPC in all cases except with iron carboxylate. Fragmentation of the films is observed at high doses in all cases. When xenon radiation is used, cross-linking is much more important, as indicated by the broadening of the MWD and the lowering of the OD at 1715 cm⁻¹. The difference between photodegradation by solar light and by xenon irradiation was assigned to a temperature effect and interpreted using the classical spontaneous mechanism of polyethylene degradation.

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Polymer Degradation and Stability

Photodegradation of polyethylene: comparison of various photoinitiators in natural weathering conditions

Abstract

Europ. Polym. J.

Europ. Polym. J.

Europ. Polym. J.

Europ. Polym. J.

Europ. Polym. J.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Polym. Deg. and Stab.

Investigating the sustainability of agricultural plastic products, combined influence of polymer characteristics and environmental conditions on microplastics aging

Enhancing the biodegradation of (bio)plastic through pretreatments: A critical review

Detecting the release of plastic particles in packaged drinking water under simulated light irradiation using surface-enhanced Raman spectroscopy

Plastic in agricultural soils – A global risk for groundwater systems and drinking water supplies? – A review

An overview of microplastic and nanoplastic pollution in agroecosystems

Effect of nano zinc oxide as UV stabilizer on the weathering performance of wood-polyethylene composite