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无甲和持久的含棉阻燃剂 -N=P-(N)3-和反应性酸酸组
Qian Tang1, Yonghua Lu1, Shuo Diao1
1State Key Laboratory of Resource Insects, College of Sericulture, Textile and Biomass Science, Southwest University, No.2 Tiansheng Road, Beibei District, Chongqing 400715, China.
International journal of biological macromolecules
|January 10, 2024
概括
一种新型阻燃剂 (HDAPA) 增强了棉织物的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 织品化学 织品化学
- 聚合物化学 聚合物化学
背景情况:
- 棉花是一种广泛使用的天然纤维,但其易燃性会带来安全风险.
- 开发耐用和有效的织品阻燃剂对于安全应用至关重要.
- 现有的阻燃剂可能缺乏耐用性或释放有害物质.
研究的目的:
- 为了合成一种新的阻燃剂,六化三化二甲氨酸酸 (HDAPA).
- 为了评估HDAPA处理的棉织物的阻燃性和耐用性.
- 研究HDAPA在棉花上的接种机制和阻燃机制.
主要方法:
- 合成HDAPA阻燃剂的合成.
- 垂直可燃性测试和限制氧指数 (LOI) 测量.
- AATCC 61-2013 3A标准用于洗衣耐用性测试.
- 福里埃变换红外 (FTIR) 和X射线光电子光谱 (XPS) 用于化学分析.
- 热重力测量 (TGA) 和TGA-福里埃红外光谱测量 (TGA-FTIR) 用于热分析.
- 扫描电子显微镜 (SEM) 用于形态分析.
主要成果:
- 经过HDAPA处理的棉花在经过50次洗后也通过了垂直可燃性测试,具有高的LOI值 (30.1%35.4%).
- 光谱分析证实了HDAPA通过-P(=O) -O-C共价键在棉花上被移植.
- 与未经处理的棉花相比,减少了总热释放 (1.98 MJ/m2) 和增加了炭残留 (16.2%).
- 通过改变棉花的热分解,HDAPA证明了凝聚相阻燃机制.
- SEM显示HDAPA进入棉纤维的无形区域.
- 机械性能略有下降,但没有释放自由甲.
结论:
- HDAPA是棉花织品的有效和持久的阻燃剂.
- 在HDAPA中引入特定的化学组 (-N=P-(N) 3-和 -P(=O) ((O-NH4+) 2) 提高了阻燃性和耐用性.
- 在不释放自由甲的情况下,HDAPA提供了一种可行的方法来提高织品的安全性.
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