含杂环的共聚芳香族聚酰胺的热性能  

Thermal Properties of Heterocyclic Aramid

作　　者：高宝山[1] 陈蕾[1] 朱礼梁[1] 胡祖明[1] 于俊荣[1] 诸静[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《东华大学学报（自然科学版）》2011年第3期272-277,共6页Journal of Donghua University(Natural Science)

基　　金：国家"973"计划资助项目(2011CB606103);纤维材料改性国家重点实验室重大研究课题资助项目(LZ0914)

摘　　要：选用带杂环结构的二胺为第三单体,低温溶液聚合自制了含杂环的共聚芳香族聚酰胺.杂环结构的引入使得聚合物的耐热性能得到进一步的提高,采用热失重的方法在不同升温速率、不同气氛下对杂环共聚芳香族聚酰胺进行热分解动力学分析,并使用热失重-傅里叶变换红外联用分析了分解产物,运用Friedman和Kissinger两种方法计算分解动力学参数.热失重-傅里叶变换红外联用显示分解产物主要是C,N,H等氧化物,Friedman和Kissinger两种方法算得分解活化能在第二失重峰处分别为321.7和316.5 kJ/mol,在第三失重峰处分别为185.1和179.3 kJ/mol.Heterocyclic aramid was synthesized by introducing heterocyclic diamine in low-temperature solution.Heat-resistant was further improved because of the introduction of heterocyclic diamine.Thermal degradation dynamics of heterocyclic aramid were analyzed by themogravimetric（TG） at different heating rates and atmospheres.The degradation products were analyzed by TG-FTIR（Fourier transform infrared spectroscopy）.The kinetic parameters were calculated by Friedman method and Kissinger method respectively.The degradation products mainly contained oxide of C,N,H.The degradation active energy calculated by Friedman method and Kissinger method in the second weight loss peak were 321.7 and 316.5kJ/mol,and in the third weight loss peak were 185.1 and 179.3kJ/mol respectively.

关 键 词：杂环共聚芳香族聚酰胺 热稳定性 热分解动力学 热失重-傅里叶变换红外(TG-FTIR) 

分 类 号：TB324[一般工业技术—材料科学与工程]