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An improved method for the durability of the flame retardant PA66 fabric

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Abstract

This paper describes an attempt in order to improve the durability of the flame retardant polyamide 66 (PA66) fabric prepared by the reaction of surface photografting with acrylamide (AM) under UV irradiation. In this study, N,N′-methylene bisacrylamide (MBAAm) combined with acrylamide has been used as a photosensitive monomer during flame retardant finishing of the PA66 fabric sample. “Durable efficiency” has been introduced to evaluate the durability of AM/MBAAm-g-PA66 fabric after 50 times washing with the 0.5 % commercial grade detergent solution. The result indicates that durable efficiency reaches its maximal value of 94.5 % when the MBAAm concentration is 5.0 mass%. The effect of MBAAm on the flame retardancy, thermal stability and tensile properties of the treated PA66 fabric has been investigated, respectively. And an interesting phenomenon shows that although MBAAm could improve the thermal stability of the treated fabric significantly at high temperature, it could have a negative effect on the flame retardancy and tensile properties of the fabric sample when its concentration is high. Its possible mechanism has been discussed here.

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Acknowledgements

The authors are grateful to the National Natural Science Foundation of China (No. 21374004), the program of the 13th Five-Year Plan (No. 2016YFC0800605 and 2016YFC0800604) and the program of Sichuan Fire Research Institute of Ministry of Public Security (20148806Z) for financial support and to Xinjun Zhu, Lihua Yu, Xiaosui Chen for their kind help during this investigating.

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Authors and Affiliations

  1. Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China

    Wei Liu, Sheng Zhang, Jun Sun & Xiaoyu Gu

  2. Sichuan Fire Research Institute of Ministry of Public Security, Chengdu, 610036, China

    Wei Liu & Xinguo Ge

Authors
  1. Wei Liu
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  2. Sheng Zhang
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  3. Jun Sun
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  4. Xiaoyu Gu
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  5. Xinguo Ge
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Correspondence to Wei Liu or Sheng Zhang.

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Liu, W., Zhang, S., Sun, J. et al. An improved method for the durability of the flame retardant PA66 fabric. J Therm Anal Calorim 128, 193–199 (2017). https://doi.org/10.1007/s10973-016-5913-9

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  • DOI: https://doi.org/10.1007/s10973-016-5913-9

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