表面活性剂使白炭黑改性的研究  

Improving the White Carbon's Performance by Surfactant

作　　者：佟树勋[1] 张丽君[1] 施丹昭[1] 

机构地区：[1]东北大学理学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2002年第3期303-306,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目 (4 98740 0 8)

摘　　要：基于大量实验 ,研究了在SiO2 含量相同或不同的条件下 ,不同种的表面活性剂在其含量改变时 ,对提高白炭黑DBP和比表面积的影响·在传统的酸性硅溶胶两步法生产白炭黑的工艺基础上 ,增加一次添加表面活性剂的过程 ,从而获得吸油值高、比表面积大。When the added amount of the surfactants of the different kind changes, the influence of the surfactants on the white carbon's DBP and surface area was studied on the conditions of the same or various content of SiO 2. Different from the traditional two step method of acid silica sol, one more procedure of adding surfactant was adopted in the process of white carbon production. The produced white carbon has higher DBP, larger surface area and the property of aerogels. The mechanism of improving the white carbon's performance was discussed.

关 键 词：白炭黑 硅溶胶 吸油值(DBP) 比表面 表面活性剂 二氧化硅气凝胶 

分 类 号：O647.2[理学—物理化学]