以硝化纤维(NC)、异佛尔酮二异氰酸酯(IPDI)三聚体、二羟甲基丙酸(DMPA)为原料,通过自乳化方法合成了水性硝化纤维(WNC).通过傅里叶变换红外光谱(FT-IR)对目标产物的结构进行表征;采用热重法(TG)研究了WNC薄膜中硝化纤维基体的热分解行为;并分别采用Kissinger法、Ozawa法求解出热分解反应的活化能和频率因子等动力学常数,结合9种常用的动力学函数来判断WNC中硝化纤维基体的热分解机理函数.结果表明:水性硝化纤维基体的热稳定性明显提高,平均热分解活化能为221.31 kJ/mol、频率因子为1.108 2×1024 s-1,热分解反应遵从Sigmoidal类型中的随机核化机理.
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