Synthesis of trimethylolphosphine carbamate and its flame retardant application in cotton

IF 2.702 Q1 Materials Science

Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-06-01 DOI:10.1002/pol.20230165

Xueyan Ma, Bingqing Liu, Yongbing Hao, Xing Guo, Lixia Liu, Jia Wang, Shujun Chao, Linlin Shan, Xuefang Shang

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Abstract

A novel free-halogen flame retardant (trimethylolphosphine carbamate, THPON) was synthesized through the simple reaction between tetrakis(hydroxymethyl) phosphonium chloride and urea. Small molecule THPON could infiltrated the cotton fibers and grafted on cotton cellulose by amide bond. What is more, THPON did not change the inherent crystal structure of cotton because it infiltrated into the amorphous region of cotton. THPON-treated cotton was easily decomposed into phosphoric acid or polyphosphate at lower temperature and exhibited good flame retardancy due to the N/P synergistic effect. Compared to control, the heat release rate of THPON-treated cotton increased slower, indicating that a protective carbon layer formed and acted as a barrier. In addition, THPON displayed the low cytotoxicity and biosafety. The development and properties of THPON could provide an important data for the further application in the industry.

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氨基甲酸三甲基膦酯的合成及其在棉花上的阻燃应用

以四(羟甲基)氯化磷和尿素为原料，合成了一种新型无卤阻燃剂(三甲基膦氨基甲酸酯，THPON)。小分子THPON可以渗透棉纤维，并通过酰胺键接枝到棉纤维素上。更重要的是，THPON并没有改变棉花固有的晶体结构，因为它渗透到棉花的无定形区。thpon处理后的棉花在较低温度下容易分解成磷酸或聚磷酸盐，由于N/P的协同作用，表现出良好的阻燃性。与对照相比，经thpon处理的棉花放热速率增加较慢，表明保护碳层形成并起屏障作用。此外，THPON具有较低的细胞毒性和生物安全性。THPON的发展和性能可以为THPON在工业上的进一步应用提供重要数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Polymer Science Part A: Polymer Chemistry 化学-高分子科学

CiteScore

5.20

自引率

0.00%

发文量

审稿时长

1.8 months

期刊介绍： Part A: Polymer Chemistry is devoted to studies in fundamental organic polymer chemistry and physical organic chemistry. This includes all related topics (such as organic, bioorganic, bioinorganic and biological chemistry of monomers, polymers, oligomers and model compounds, inorganic and organometallic chemistry for catalysts, mechanistic studies, supramolecular chemistry aspects relevant to polymer...