Ultraviolet weathering of photostabilized wood-flour-filled high-density polyethylene composites†‡
By N. Stark, L. Matuana. 2003
146 citations recorded by the source corpus.
Wood-plastic composites are being increasingly examined for nonstructural or semistructural building applications. As outdoor applications become more widespread, durability becomes an issue. Ultraviolet exposure can lead to photodegradation, which results in a change in appearance and/or mechanical properties. Photodegradation can be slowed through the addition of photostabilizers. In this study, we examined the performance of wood flour/high-density polyethylene composites after accelerated weathering. Two 24 factorial experimental designs were used to determine the effects of two hindered amine light stabilizers, an ultraviolet absorber, a colorant, and their interactions on the photostabilization of high-density polyethyl- ene blends and wood flour/high-density polyethylene composites. Color change and flexural properties were determined after 250, 500, 1000, and 2000 h of accelerated weathering. The results indicate that both the colorant and ultraviolet absorber were more effective photostabilizers for wood flour/high-density polyethylene composites than the hindered amine light stabilizers. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 2609–2617, 2003
Subfields: Mechanical Engineering, Mechanics of Materials, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/761f529108b94145ed560adf9aac00149ecbebb4
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In Mechanical Engineering
In Mechanics of Materials
In Polymers and Plastics
Citations in the corpus
- Influence of photostabilizers on wood flour-HDPE composites exposed to xenon-arc radiation with and without water spray (2006, methodology): “We previously employed a full-factorial experimental de sign to examine the effect of a low molecular weight HALS, a high molecular weight HALS, an ultraviolet absorber (UVA), and a pigment on the lightness and mechanical prop erties of WF/HDPE composites exposed for up to 2000 h of accelerated UV”