高结构炭黑表面自由能的研究  

Research on Surface Free Energy of High Structure Carbon Black

作　　者：陈建[1] 崔汶静[1] 谢纯[1] 金永中[1] 张敬雨[1] 

机构地区：[1]四川理工学院材料腐蚀与防护重点实验室,四川自贡643000

出　　处：《橡胶工业》2014年第2期78-83,共6页China Rubber Industry

基　　金：国家自然科学基金资助项目(51072125);四川理工学院研究生创新基金资助项目(y2011017)

摘　　要：采用反相气相色谱法分别对高结构炭黑CD2117和CRX2125以及普通炭黑N330和N550的表面自由能进行研究。结果表明:随着炭黑比表面积的增大,其色散自由能也增大。炭黑比表面积与其色散自由能的线性相关因数为0.839 32,两者间的相关性较好。经过不同温度热处理的高结构炭黑,其表面含氧官能团脱落,色散自由能变大;而经过氧化处理的高结构炭黑,其表面含氧官能团增多,氧化处理后的色散自由能减小,说明含氧官能团并非吸附橡胶的活性中心。The surface free energies of high structure carbon black CD2117,CRX2125 and carbon black N330,N550 were investigated by using inverse gas chromatography method.The results showed that,the dispersion free energy of carbon black increased when the specific surface area of carbon black increased.The linear correlation coefficient of specific surface area and dispersion free energy was 0.839 32,indicating a good correlation.When the high structure carbon black was treated at different temperatures,the number of surface oxygenic groups of carbon black decreased,and the dispersion free energy increased.On the other side,when the carbon black was treated by oxidation,the number of surface oxygenic groups of carbon black increased,and the dispersion free energy decreased,which illustrated that the oxygenic groups were not the active centers of adsorbing rubber.

关 键 词：反相气相色谱法 表面自由能 炭黑 比表面积 含氧官能团 

分 类 号：TQ330.381[化学工程—橡胶工业]