科技创新与应用2025，Vol.15Issue(9)：72-75,4.DOI:10.19981/j.CN23-1581/G3.2025.09.017
基于DSC的航空丁腈橡胶鉴别方法研究
朱强强 1郑圆辉1
作者信息
- 1. 国营芜湖机械厂,安徽 芜湖 241000
- 折叠
摘要
Abstract
In this paper,aeronautical NBR(nitrile butadiene rubber)is taken as the research object,differential scanning calorimetry(DSC)analysis of NBR was carried out before and after solvent extraction.The characteristic values of the DSC curve of each grade of aviation NBR were statistically analyzed,and the relationship curve between the glass transition temperature(Tg)of aviation NBR and the content of acrylonitrile(AN%)was established.The results show that the higher the acrylonitrile content of NBR,the higher the glass transition temperature,but it is greatly affected by additives in NBR.After solvent extraction the relationship between Tg and AN%is Tg=1.45AN%-70.88,R2=0.99.The type of raw rubber can be determined according to the glass transition temperature,and then the aviation NBR can be further identified.关键词
航空丁腈橡胶/丙烯腈含量/玻璃化转变温度/DSC/鉴别方法Key words
aeronautical NBR/acrylonitrile content/glass transition temperature/DSC/identification method分类
化学化工引用本文复制引用
朱强强,郑圆辉..基于DSC的航空丁腈橡胶鉴别方法研究[J].科技创新与应用,2025,15(9):72-75,4.
