Novel waterborne polyurethanes containing long-chain alkanes: their synthesis and application to water repellency.

RSC Adv · 2019 · PMC9072565 · PMID 35527941

Europe PMC DOI

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a significant trendno p-value reported

22,23 Therefore, the development of fluorine-free water repellents has become a significant trend.

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a decreasing trendno p-value reported

Additionally, the adhesion of the particles to the fabric surface decreased due to the increased particle size of the emulsion, and thus, the water contact angle of the fabrics showed a decreasing trend.

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a slightly increasing trendno p-value reported

It can be seen from the results in Table 6 that when the content of GMS increased, the water repellency score showed a slightly increasing trend because the greater long-chain alkane content and the larger amount of –CH 2 CH 3 orientationally aligned on the fabric surface to form an effective water-repellent layer.

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