用阻燃剂处理的柔特织物的热降解和化学分析
Most Setara Begum1, Michael Hummel2, Sumit Mandal3
1Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu Str. 56, LT-51424 Kaunas, Lithuania.
Polymers
|July 27, 2024
概括
阻燃处理显著增强了木质织物的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 聚合物化学 聚合物化学
背景情况:
- 朱特是一种纤维纤维,需要阻燃性质,用于各种工业应用.
- 目前的应用包括工业通风,汽车复合材料,装饰,地毯,军服,医院家具和窗.
研究的目的:
- 为了评估基于有机的阻燃剂 (FR) 和在木质织物上的交联剂的有效性.
- 分析这种处理对热稳定性,降解行为和表面特征的影响.
- 为了评估阻燃性,燃煤生成和残留甲含量.
主要方法:
- 七种编织结构的柔特织物使用ITOFLAM CPN (FR) 和KNITTEX CHN (交联剂) 通过干固法进行处理.
- 热重力测量分析 (TGA) 评估了热稳定性和降解.
- 扫描电子显微镜 (SEM) 使用能量分散光谱 (EDS) 和减弱总反射-里埃变换红外光谱仪 (ATR-FTIR) 分析了表面形态和化学成分.
- 自由甲含量根据ISO 14184-1进行测量.
主要成果:
- 在所有经过处理的木质织物中,阻燃性显著提高.
- FTIR和SEM-EDS证实了FR化学物质在织物表面的沉积.
- 在FR处理的织物中,TGA显示了碳化合物生成的增加和剩余质量的增加 (> 50%),这表明热稳定性得到了改善.
- 然而,FR处理的织物超过了直接与皮肤接触的织品所允许的自由甲限值.
- 双织布 (FRD4和FRD5) 的热降解温度较低.
- 经过十次洗后的残余质量损失在32%至36%之间.
结论:
- 基于有机的阻燃剂有效地赋予织品阻燃性质,增强碳产量和剩余质量.
- 该处理导致自由甲含量显著增加,这对直接与皮肤接触的应用提出了潜在的安全问题.
- 需要进一步的研究,以减轻甲释放,同时保持阻燃效果.
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