为研究不同基材对聚氨酯泡沫热稳定性的影响,以不同的黑料和白料通过全水发泡“一步法”制备了聚氨酯泡沫。然后采用热重分析法研究了质量损失速率对聚氨酯泡沫热稳定性的影响,并采用热重热解动力学法计算样品的活化能进一步分析对比。结果表明:多元醇330n与异氰酸酯MDIpm200制备的聚氨酯泡沫的残炭量更高,热失重率更低,热稳定性更高。
In order to study the effect of different substrates on the thermal stability of polyurethane foam(PUF),use 4 different black and white materials to prepare PUF through the "one-step method" of full-water foaming.For PUF thermal stability,TG pyrolysis kinetics method was used to calculate the activation energy of the samples for further analysis and comparison.The results shown that the PUF prepared by polyol330n and isocyanate MDIpm200 had higher carbon residue,lower thermal weight loss rate and higher thermal stability.
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基金资助
辽宁省教育厅项目(JYT2020011)
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