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Effect of Additives on Photo-Aging Performance of Polyurethane Coating
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Effect of Additives on Photo-Aging Performance of Polyurethane Coating

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Abstract:

Polyurethane (PU) coatings with additives, such as UV-curing monomers and oligomers, ultraviolet absorbing (UVA) and hindered amine (HALS), were accelerated with Xenon lamp to study the effect of additives on photo aging performance of PU coatings. The ageing behavior of samples was evaluated with gloss-meter, chromatic meter, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM).The results indicated that the anti-aging of coating was improved by the synergy effect of 1.5wt.% HALS(Tinuvin 292), 3wt.% UV-curing resin (611B-85) and 1wt.% UVA(UV1130).

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Materials Processing Technology, AEMT2011 View Preview

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Periodical:

Advanced Materials Research (Volumes 291-294)

Pages:

211-214

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.291-294.211

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Online since:

July 2011

Authors:

Bin Xiang, Ren Qing Zhu, Hai Yun He, Zhong Cheng Xu, Shi Chen

Keywords:

Hindered Amine, Photo-Aging, Polyurethane (PU), Ultraviolet Absorber, UV-Curing Resin

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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