有机导体TCNQ电荷转移复合物的热稳定性研究  

Thermal stability of organic conductor of N-n-butylisoquinoline 7,7,8,8-tetracyanoquinodimethane charge transfer complex

作　　者：张庆武[1] 王晖[1] 周啸[1] 

机构地区：[1]清华大学化工系高分子研究所,北京100084

出　　处：《材料科学与工艺》2003年第3期268-272,共5页Materials Science and Technology

摘　　要：为提高TCNQ电荷转移复合物用于电解电容器时的热稳定性,在升温与降温过程中的原位红外光谱方法研究了TCNQ正丁基异喹啉电荷转移复合物的热分解,并以DSC、TGA等手段检测了这种复合物的耐热性.研究表明,在220℃的温度下,恒温时间控制在10min以内,上述复合物的结构没有明显的变化;但时间超过10min后,其结构就有明显的变化,而且这种变化是不可逆的,说明这种复合物已经开始分解.把此研究结果用于TCNQ型铝固体电解电容器的制作工艺,借助于严格控制加热温度及加热时间制得了高频特性与耐温性均好于常规的铝液体电解电容器的TCNQ型铝固体电解电容器.In order to improve the thermal stability of N-n-butylisoquinoline (TCNQ)2 charge transfer complex used for aluminium electrolyte capacitors, thermal decomposition of the complex was investigated with in-situ infrared spectroscopy by rising and reducing the temperature, and its thermal performance was tested with differential scanning calorimetry and thermogravimetric analysis. The results show that the structure of the charge transfer complex remains unchanged within 10 minutes at 220 ℃ and the complex has an obvious change beyond 10 minutes under the same temperature. That change is irreversible when the temperature goes back to room temperature. Aided by controlling the temperature and processing time during the manufacture, thermal decomposition of the complex could be avoided and high impregnating efficiency could be achieved. The performance of aluminium solid electrolyte capacitors with the complex prepared by this controlled method is better than that of conventional aluminium liquid electrolyte capacitors at high frequency.

关 键 词：有机导体TCNQ 电荷转移复合物 热稳定性 电子元件 热分解 电解电容器 

分 类 号：TM535[电气工程—电器]