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首页> 外文期刊>Journal of Thermal Analysis and Calorimetry >Effect of poly(bisphenol A acryloxyethyl phosphate) on the activation energy in thermal degradation of urethane acrylate
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Effect of poly(bisphenol A acryloxyethyl phosphate) on the activation energy in thermal degradation of urethane acrylate

机译：聚（双酚A丙烯酰氧基乙基磷酸酯）对氨基甲酸酯丙烯酸酯热降解过程中活化能的影响

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摘要

Poly(bisphenol A acryloxyethyl phosphate) (BPAAEP) was blended in different ratios with a commercial urethane acrylate to obtain a series of UV curable flame-retardant resins. The thermal oxidative degradation mechanism of their cured films in air were studied by thermogravimetric analysis at several heating rates between 5 and 20°C min?1. The activation energies were determined using Kissinger method, Friedman method, Flynn-Wall method, Horowitz-Metzger method and Ozawa method. The results showed that the activation energies of the blends were lower than that of pure urethane acrylate at lower degree of degradation, whereas the higher activation energies were obtained at higher degree of degradation.
机译：将聚（双酚A丙烯酰氧基乙基磷酸酯）（BPAAEP）以不同比例与市售氨基甲酸酯丙烯酸酯共混，以获得一系列可UV固化的阻燃树脂。通过热重分析在5至20°C min？1 的几种加热速率下研究了其固化膜在空气中的热氧化降解机理。活化能使用基辛格法，弗里德曼法，弗林-沃尔法，霍洛维茨-梅茨格法和小泽法测定。结果表明，共混物的活化能在较低的降解度下比纯氨基甲酸酯丙烯酸酯低，而在较高的降解度下则具有较高的活化能。

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