Preparation and properties of flame-retardant viscose fiber modified with poly[bis(methoxyethoxy)phosphazene]

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• 作者：Yongfeng He ; Yuan Chen ; Qingkang Zheng ; Jinqu Zheng ; Sheng Chen
• 关键词：Flame retardant ; Viscose fiber ; Polyphosphazene ; Thermal properties ; Degradation
• 刊名：Fibers and Polymers
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：16
• 期：5
• 页码：1005-1011
• 全文大小：558 KB
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• 作者单位：Yongfeng He (1)
  Yuan Chen (1)
  Qingkang Zheng (1)
  Jinqu Zheng (1)
  Sheng Chen (1)
  
  1. College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, 610065, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  
• 出版者：The Korean Fiber Society
• ISSN：1875-0052

文摘

Poly[bis(methoxyethoxy)phosphazene] (PMEP) was synthesized and applied to the preparation of flame-retardant viscose fiber using wet spinning method. The structure of PMEP was characterized by FTIR and NMR. The combustibility and thermal stability of the flame-retardant viscose fiber containing different percentage of PMEP (0-20 %) were evaluated by limit oxygen index (LOI), 45 ° slope burning method, differential scanning calorimeter (DSC), and thermal gravity analysis (TGA). The results showed that the LOI of the flame-retardant viscose fiber containing 10 % or more PMEP could reach at least 28 % after normal family laundering, and the combustibility of the flame-retardant viscose fiber could reach the Japan industry standard JIS L1091-D (3 times of ignition). The analysis of the fiber thermal degradation suggested that PMEP as a macromolecular flame retardant had a multifunction of heat absorption, catalytic dehydration, carbonization, condensation-phase and gas-phase flame retardancy. The mechanical properties of the flame-retardant viscose fiber decreased insignificantly compared with that of virgin viscose fiber.