极限氧指数
阻燃剂
聚氨酯
热重分析
材料科学
热稳定性
傅里叶变换红外光谱
涂层
高分子化学
复合材料
化学工程
有机化学
化学
烧焦
热解
工程类
作者
Nurul Atiqah Mohd Taip,Zuhair Jamain,Ismawati Palle
出处
期刊:Polymers
[MDPI AG]
日期:2022-09-08
卷期号:14 (18): 3768-3768
被引量:3
标识
DOI:10.3390/polym14183768
摘要
A series of new hexasubstituted cyclotriphosphaze derivatives containing Schiff base linkages were successfully synthesized and characterized. The series contains different terminal substituents of pentyl and tetradecyl. Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (NMR), and carbon, hydrogen, and nitrogen (CHN) elemental analysis were used to characterize the intermediates and final compounds, while the thermal stability of the final compounds is evaluated with a thermogravimetric analysis (TGA) test. The final compounds are physically added to the polyurethane coating formulation and then applied to the wood panel using a brush and the compound's fire-retardant properties are evaluated using the limiting oxygen index (LOI) test. In this research, compound 3b showed good thermal stability compared to compound 3a. In terms of LOI results, polyurethane with an LOI value of 21.90% was employed as a matrix for wood coating and the value increased to 24.90% when this polyurethane is incorporated with 1 wt.% of the compound 3b. The increase in the LOI value indicates that the wood coating containing hexasubstituted cyclotriphosphazene compounds exhibits excellent fire-retardant properties as additives.
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