超细白炭黑的表面改性研究  

Surface Modification of Ultrafine Silica

作　　者：熊伟[1] 何寿林[1] 周玉新[1] 

机构地区：[1]武汉工程大学化工与制药学院,绿色化工过程省部共建教育部重点实验室,湖北武汉430074

出　　处：《云南化工》2014年第2期7-9,24,共4页Yunnan Chemical Technology

摘　　要：在反应器中,以乙醇为分散剂,以六甲基二硅胺烷为改性剂,自制超细白炭黑为原料,初步确定了超细白炭黑表面改性的最优工艺条件为:反应温度85℃,改性剂用量2%,反应时间100min,预处理温度200℃,预处理时间2 h。改性白炭黑XRD分析显示,其表面改性并不会改变白炭黑的无定形态,SEM分析可知改性后的白炭黑具有很好的分散性。In the reactor,with ethanol as a dispersant and HMDS as modifier,self made ultra-fine silica as material,optimal conditions for surface modification of utrafine slica are initially identified,the re-action temperature is 85℃,modifier amount is 2%,the reaction time is 100min,pretreatment temperature is 200℃,pretreatment time is 2h.XRD analysis of modified silica indicates that the surface modification does not change the amorphous structure of silica,the SEM analysis shows that the modified silica has good dispersibility.

关 键 词：超细白炭黑 六甲基二硅胺烷 表面改性 

分 类 号：O613[理学—无机化学]