Monitoring the UV degradation of PVC window frames by microhardness analysis

Abstract

SynopsisWhile well-known methods of bulk analysis of thermal degradation of PVC become standard industrial tools, techniques for the study of surface damage produced by weathering are not generally considered. In this paper we present a new test, based on microhardness measurements, which can be used as a complementary technique for the study of this phenomenon. Comparison of this method with color changes and specific elongation at break measurement has been established for PVC window frames.

Study of performance properties of lignin-based polyblends with polyvinyl chloride

“…The mechanical properties and the colour get deteriorated due to the presence of oxygen and humidity [19,20]. So to prevent this weathering titanium dioxide and UV stabilizers are incorporated.…”

Principles of Uv Degradation

“…53 Only small changes were detected because the core is not affected and the surface is continuously changed due to surface erosion process. 54 Impact strength readings are affected by the presence of a degraded layer on the surface of PVC materials. 54 Impact strength readings are affected by the presence of a degraded layer on the surface of PVC materials.…”

Natural weathering effects on some properties of CPVC pipe material

“…For instance, the tensile strength of white poly(vinyl chloride), PVC, pipes exposed for 24 months in Dhahran (Saudi Arabia) decreased by 43% while an exposure of the same duration in Florida resulted in only a 26% decrease in the property [1]. Gonzalez et al [2] reported that one of the major problems associated with PVC is its sensitivity to weathering and UV irradiation. Furthermore, the presence of oxygen and humidity induces changes in its mechanical properties.…”