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Durable flame retardant and water repellent cotton fabric based on synergistic effect of ferrocene and DOPO

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Abstract

In order to endow cotton fabric better water repellency and flame retardancy, ferrocene formaldehyde and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) were introduced into cotton fabric through facile chemical reaction. The specific pyrolysis products of Fe@DOPO cotton tested by TG-IR was reduced obviously compare with pristine cotton. More importantly, the peak heat release rate and total heat release of the modified cotton fabric were decreased by 48.9% and 19.2%, respectively. Through the analysis of combustion mechanism, it was indicated that ferrocene and DOPO have synergistic flame retardant effect. In addition to the flame retardant, the waterproof property of Fe@DOPO cotton was also greatly improved, and the contact angle was 138°. After 12 times of washing, the limiting oxygen index (LOI) of as-prepared cotton was still 24%, indicating Fe@DOPO cotton had a good washing resistance. These excellent properties were expected to make the modified cotton fabric applied in many fields.

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Acknowledgments

This work was funded by National Natural Science Foundation of China (NO. 51773129, 51903167), Support Plan of Science and Technology Department of Sichuan Province, China (2019YFG0257, 2020YFG0071), International Science and Technology Cooperation Program of Chengdu (2019-GH02-00021-HZ), Miaozi Project in Science and Technology Innovation Program of Sichuan Province (20-YCG045). We also appreciate Mi Zhou and Sha Deng for her assistance with the experimental test.

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Correspondence to Xu Cheng or Haibo Wang.

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Luo, Y., Wang, S., Du, X. et al. Durable flame retardant and water repellent cotton fabric based on synergistic effect of ferrocene and DOPO. Cellulose 28, 1809–1826 (2021). https://doi.org/10.1007/s10570-020-03636-2

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  • DOI: https://doi.org/10.1007/s10570-020-03636-2

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