Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2003-04-15

Journal: 合成纤维工业

Included Journals: CSCD、ISTIC、PKU

Volume: 26

Issue: 2

Page Number: 24-26

ISSN: 1001-0041

Key Words: 聚芳醚砜酮 耐热纤维 热性能 砜酮比

Abstract: 采用DSC、TG测定了含联苯结构聚芳醚砜酮(PPESK)纤维的热性能,结果表明,纤维的玻璃化温度随砜酮比的增大而提高,纤维的起始分解温度大于463℃.当砜酮比为15/85,50/50,75/25时,纤维的玻璃化温度分别为257.62,278.64,279.71℃;热分解活化能分别为150.8,219.9,195.5 kJ/mol;热分解反应级数分别为1,1.76,1级.