导电炭黑微观结构及其应用性能

以乙炔炭黑、副产炭黑和炉法导电炭黑为研究对象,较为系统地分析了与导电炭黑应用性能密切相关的微晶结构、表面性质、颗粒形貌和粒度分布特征,探讨了导电炭黑微观结构对应用性能的影响。研究结果表明,导电炭黑的微观结构决定了其应用性能,而决定应用性能的关键在于其与基体材料的匹配性。副产炭黑在橡胶和塑料中导电性能较好,乙炔炭黑在锂离子电极材料中的导电性能较好。

Microstructure and application of conductive carbon black

The microstructures of acetylene carbon black, byproduct carbon black and furnace conductive carbon black were systematically investigated and the internal relationship between microstructure and application performance was explored to provide a guidance to the production and application of conductive carbon black. X-ray diffraction, Fourier transform infrared spectrometer, transmission electron microscope and laser particle size analyzer were used to conduct systematic research on the microstructure of conductive carbon black. The results show that the key factor for determining the application performance of conductive carbon black is its compatibility with matrix. The byproduct carbon black is hollow-structured and the aggregate branch is advanced. It presents remarkable conductivity in rubber and plastics. The excellent conductivity performance of acetylene carbon black in lithium ion electrodes attributes to its high degree of graphitization, large grain size and high purity.