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首页> 外文期刊>Journal of Applied Polymer Science >Thermal decomposition kinetic and flame retardancy of CaCO _3 filled recycled polyethylene terephthalate/recycled polypropylene blend
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Thermal decomposition kinetic and flame retardancy of CaCO _3 filled recycled polyethylene terephthalate/recycled polypropylene blend

机译：CaCO _3填充的再生对苯二甲酸乙二醇酯/再生聚丙烯共混物的热分解动力学和阻燃性

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摘要

The flammability and thermal decomposition kinetics of recycled polyethylene terephthalate (RPET)/recycled polypropylene (RPP) blends filled with CaCO _3 were investigated. The thermal decomposition kinetics were determined by using various models such as the Flynn-Wall-Ozawa, Kissinger, and Kim-Park, which would define the thermal stability of the blends through the determination of their decomposition activation energies. Meanwhile, the flammability of the materials was also determined through the limiting oxygen index (LOI) method. It was found that blends with higher RPP content or contain CaCO _3 exhibited higher resistance to thermal degradation judging from their higher activation energies. Furthermore, it was found that the isoconversion kinetic of the Flynn-Wall-Ozawa model could provide a better estimation of the decomposition activation energy at each stage of degradation.
机译：研究了填充CaCO 3的再生聚对苯二甲酸乙二醇酯（RPET）/再生聚丙烯（RPP）混合物的易燃性和热分解动力学。通过使用各种模型（例如Flynn-Wall-Ozawa，Kissinger和Kim-Park）确定热分解动力学，该模型将通过确定共混物的分解活化能来确定其热稳定性。同时，还通过极限氧指数（LOI）法确定了材料的可燃性。发现具有较高RPP含量或含有CaCO 3的共混物由于其较高的活化能而显示出较高的抗热降解性。此外，已经发现，Flynn-Wall-Ozawa模型的等转换动力学可以更好地估计每个降解阶段的分解活化能。

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