CAJ | 학술논문

采用浓硝酸(50%)与硅烷偶联剂( KH550)分别对炭黑进行了表面改性。采用SEM、EDS研究了改性炭黑的粒径、形貌及元素含量；采用金相显微镜和紫外-可见光分光光度计分析了改性炭黑在四氯乙烯中的分散性。利用自制电泳装置测试了氧化改性炭黑的电场响应特性。结果表明，表面改性后的炭黑电导率下降，具有更优良的分散性与电场响应特性。电荷控制剂span-80可以有效提高改性炭黑在TCE中的分散性。
채용농초산(50%)여규완우련제( KH550)분별대탄흑진행료표면개성。채용SEM、EDS연구료개성탄흑적립경、형모급원소함량；채용금상현미경화자외-가견광분광광도계분석료개성탄흑재사록을희중적분산성。이용자제전영장치측시료양화개성탄흑적전장향응특성。결과표명，표면개성후적탄흑전도솔하강，구유경우량적분산성여전장향응특성。전하공제제span-80가이유효제고개성탄흑재TCE중적분산성。
The surface of carbon black particles were modified by concentrated nitric acid(50%)and silane coupling agent ( KH550 ) . The particle size, morphology and element content of the modified carbon black were characterizated by using scanning electronic microscope ( SEM ) and energy-dispersive X-ray spectroscopy ( EDS ) . The dispersity of modified carbon black in TCE was analyzed by using metalloscope and UV-VIS spectrophotometer. The electric field response characteristic of the oxidation modified carbon black was tested by using the self-made electrophoretic apparatus. The results indicated that the conductivity of the modified carbon black was decreased, and it has better dispersity and electric field response characteristic. Also, the dispersity of the modified carbon black in the TCE can be effectively improved with charge control agent span-80.