Weatherability of coated EPDM rubber compound by controlled UV irradiation
Date
2000
Authors
Matisons, J.G.
Ginic Markovic, M.
Choudhury, N.R.
Dimopoulos, M.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Polymer Degradation and Stability, 2000; 69(2):157-168
Statement of Responsibility
Conference Name
Abstract
Polymeric composites for automotive window seal applications are generally exposed to complex service environment conditions. The fundamental physico-chemical processes that control the durability of such composite systems on a micro and macroscopic level were evaluated in the present case using thermal analysis (TA), elemental mapping and microscopy. Five different EPDM rubber compounds (control, three bulk modified and one surface modified), coated with polyurethane coating were exposed to controlled UV irradiation. The higher the adhesion, the less the extent of UV penetration through the interface. The photo-oxidation mainly takes place from the surface, as the energy gets consumed and the intensity of the UV decreases on its passage through the strongly adhered layers to the rubber compound. The coating layer being on the surface, is more affected and photodegraded by UV irradiation than the rubber compound. The sample P1cc, being multiphasic in nature and with a strong interface, can scatter the UV strongly and hence shows best weatherability among all the system
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright status unknown