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Journal of Coatings Technology and Research
Published in: Journal of Coatings Technology and Research 6/2018

29-06-2018

Preparation and properties of waterborne polyurethane modified by stearyl acrylate for water repellents

Authors: Lixia Sheng, Xuetong Zhang, Zhen Ge, Zhu Liang, Xiaoli Liu, Chunpeng Chai, Yunjun Luo

Published in: Journal of Coatings Technology and Research | Issue 6/2018

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Abstract

Double bond end-capped waterborne polyurethane (DWPU) was synthesized from toluene diisocyanate, hydroxypropyl polysiloxane, trimethylolpropane, N-methyldiethanolamine, and hydroxyethyl acrylate. Then water repellents with long-chain hydrophobic alkyl structure were obtained by radical copolymerization of stearyl acrylate (SA) and DWPU. The waterproofing performance and other properties of the water repellents were studied for different SA contents. The results showed that, for the water repellent with SA content of 50 wt%, the water absorption of the film reduced to 4.29% while the water contact angle of fabric coated by the water repellent rose to 141.5°. In addition, the optimum SA content of the water repellent was 40%, achieving the highest score of 85 points in the waterproof performance evaluation.
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Metadata
Title
Preparation and properties of waterborne polyurethane modified by stearyl acrylate for water repellents
Authors
Lixia Sheng
Xuetong Zhang
Zhen Ge
Zhu Liang
Xiaoli Liu
Chunpeng Chai
Yunjun Luo
Publication date
29-06-2018
Publisher
Springer US
Published in
Journal of Coatings Technology and Research / Issue 6/2018
Print ISSN: 1547-0091
Electronic ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-018-0096-x

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