Factors affecting accelerated testing of polymer photostability

The effect of components of the atmosphere on photostabilized polymers and development of degradation phenomena is outlined. The processes are characteristic of heterogeneity in distribution of products of polymer degradation and stabilizer transformation or consumption. Concentration gradients of t...

Full description

Saved in:
Bibliographic Details
Published in:Polymer degradation and stability 2006-03, Vol.91 (3), p.417-422
Main Authors: Pospíšil, J., Pilař, J., Billingham, N.C., Marek, A., Horák, Z., Nešpůrek, S.
Format: Article
Language:English
Subjects:
Ageing
Applied sciences
Degradation analyses
Exact sciences and technology
Photodegradation
Photostabilization
Physical properties
Polymer industry, paints, wood
Properties and testing
Technology of polymers
Testing
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of components of the atmosphere on photostabilized polymers and development of degradation phenomena is outlined. The processes are characteristic of heterogeneity in distribution of products of polymer degradation and stabilizer transformation or consumption. Concentration gradients of the products indicate preferential surface and near-surface changes having U-shaped characteristics and affected by the polymer material or sample thickness due to limited penetration of oxygen. Increased intensity of radiation in artificial sources induces material changes different from those resulting from natural weathering, complicating correlation between the two processes and lifetime prediction. Surface and near-surface analyses of tested samples provide a realistic insight into heterogeneity characteristic of photodegradation.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2005.01.049