中国塑料 ›› 2024, Vol. 38 ›› Issue (12): 72-76.DOI: 10.19491/j.issn.1001-9278.2024.12.012

• 材料与性能 • 上一篇    下一篇

阻燃水性聚氨酯的制备及对涤纶织物涂层研究

杨陈1,2(), 赵丽雪1,2, 林燕萍1,2()   

  1. 1.江西服装学院,南昌 330201
    2.江西省现代服装工程技术研究中心,南昌 330201
  • 收稿日期:2024-03-12 出版日期:2024-12-26 发布日期:2024-12-25
  • 通讯作者: 林燕萍,女,博士在读,教授,主要从事功能性纺织品的开发与设计,linyanping_q@126.com
    E-mail:yangchen_q@126.com;linyanping_q@126.com
  • 作者简介:杨陈,男,博士,教授,主要从事功能性纺织材料的开发,yangchen_q@126.com
  • 基金资助:
    江西省教育厅科学技术重点研究项目(GJJ2202802)

Preparation of flame retardant waterborne polyurethane and its coating for polyester fabric

YANG Chen1,2(), ZHAO Lixue1,2, LIN Yanping1,2()   

  1. 1.Jiangxi Institute of Fashion Technology,Nanchang 330201,China
    2.Jiangxi Modern Clothing Engineering Technology Research Center,Nanchang 330201,China
  • Received:2024-03-12 Online:2024-12-26 Published:2024-12-25
  • Contact: LIN Yanping E-mail:yangchen_q@126.com;linyanping_q@126.com

摘要:

以阻燃聚酯多元醇为磷源对水性聚氨酯阻燃改性,并对改性的阻燃水性聚氨酯乳液、膜及其涂层涤纶织物进行性能表征。结果表明,改性引入的阻燃聚酯多元醇已完全参与了对水性聚氨酯的阻燃改性;当含磷量低于5 %时,阻燃水性聚氨酯乳液呈半透明至乳白色,粒径低于100 nm,离心稳定性较好;随着含磷量的增加,阻燃水性聚氨酯膜的吸水率、力学性能及裂解温度有所降低,质量残存率有所上升;含磷量为3 %时,其涂层涤纶织物已达到难燃级别;分析认为:利用阻燃水性聚氨酯涂层涤纶织物进行阻燃整理具有可行性。

关键词: 水性聚氨酯, 粒径, 分子结构, 热失重, 力学性能, 吸水性能, 阻燃性能

Abstract:

Waterborne polyurethane (PU) was modified with flame⁃retardant polyester polyol as a phosphorus source, and the properties of the resultant modified waterborne PU emulsion, film, and coated polyester fabric were characterized. The results indicated that the flame⁃retardant polyester polyol as a modifier was completely participated in the flame⁃retardant modification of waterborne PU. When the phosphorus content was less than 5 wt%, the flame⁃retardant waterborne PU emulsion presented an aspect from translucent to milky white, its particle size was less than 100 nm, and its centrifugal stability was good. The waterborne PU film exhibited a decrease in the water absorption rate, mechanical properties and cracking temperature with an increase in the phosphorus content, but its mass retention rate increased. The coated polyester fabric reached a nonflammable level at a phosphorus content of 3 wt%. The mechanism analysis indicates that it was feasible to finish polyester fabric with the flame⁃retardant waterborne PU coating.

Key words: waterborne polyurethane, particle size, molecular structure, thermal weight loss, mechanical property, water absorption property, flame retardant property

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