Photodegradation of polypropylene films using spectrally dispersed light.

Murayama, Mikio; Shoichiro, Yano

doi:10.1295/koron.45.789

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Results Of the Outdoor Exposure Test1

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2014

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“…The peak near 1720 cm -1 increased a little after 1 year of outdoor exposure. This implies that oxidation of both wood and polyolefin occurred [23]. The peak at 1509 cm -1 almost disappeared after outdoor exposure.…”

Section: Results Of the Outdoor Exposure Testmentioning

confidence: 87%

Surface deterioration of wood plastic composites under outdoor exposure

Ebe

Sekino

2014

J Wood Sci

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Outdoor exposure tests of wood plastic composites (WPCs) were conducted at seven sites in Japan. The tests examined the process of chalking on the surface of the WPCs and the weather factors affecting chalking. Observations using a scanning electron microscope and a polarization optical microscope (POM), analyses of Fourier transform infrared spectroscopy, as well as differential scanning calorimetry showed that the deterioration of both wood and polyolefin elements occurs on the surface of WPCs. The POM observations revealed that surface sanding of WPCs in the manufacturing process promoted more chalking. Furthermore, it became clear that among the weather conditions studied, temperature and global solar radiation had the greatest influence on chalking, as determined from the results of single regression analysis.

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Section: Results Of the Outdoor Exposure Testmentioning

confidence: 87%