Article ID Journal Published Year Pages File Type
5204392 Polymer Degradation and Stability 2006 13 Pages PDF
Abstract

This paper describes the chemical evolution of two propylene-ethylene copolymer formulations, non-stabilized and carbon black filled - HALS stabilized, exposed to a range of natural and artificially accelerated weathering techniques, commonly used in the field of material testing. With the non-stabilized formulation, a fairly good representation of weathering in outdoor conditions was demonstrated with any of the accelerated exposures through the recognition of similar chemical changes at the molecular level. In contrast, the additives in the stabilized matrix induced very different chemical evolutions depending on the weathering techniques employed. This variability has been used to critically characterize those techniques on a scientific basis.

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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