乙烯基硅烷偶联剂改性白炭黑  

Research on Modification of Silica by Vinyl Silica Coupling Agent

作　　者：裴莹[1] 苟继贤 李佳奇[1] 黄斌[1] 

机构地区：[1]四川理工学院材料与化学工程学院,四川自贡643000

出　　处：《云南化工》2016年第2期13-16,共4页Yunnan Chemical Technology

基　　金：四川省大学生创新创业训练计划(201410622014)

摘　　要：以乙烯基硅烷偶联剂为改性剂,选择合适的温度水解后,对沉淀白炭黑表面进行改性。探讨了改性剂用量、温度、时间等因素对改性效果的影响。通过正交实验,得出最优化条件为:用乙烯基三乙氧基作改性剂时,每10.00 g白炭黑改性剂用量为4.00 g,时间30 min,温度70℃,在此条件下改性产物活化度可达到95%以上。通过红外光谱分析可知,乙烯基硅烷偶联剂水解后与白炭黑表面发生了化学键合。Vinyl silane coupling agent as modifier,selection the appropriate temperature for hydroly-sis,precipitated silica surface was modified.Effects of dosage of modifier,temperature,time on the modifica-tion were discussed.The optimal conditions for the surface modification by orthogonal experiment were con-cluded as using vinyl triethoxy as modifier,with every 10.00 g silica modifier dosage of 4.00 g,the modifica-tion time for 30 minutes,modification temperature of 70 ℃.Under such conditions,the modified product acti-vation degree could be reached more than 95%.The infrared spectrum analysis showed that there was chemi-cally bonding formation between hydrolyzed vinyl silane coupling agent and silica surface.

关 键 词：沉淀白炭黑 表面改性 乙烯基硅烷偶联剂 水解 

分 类 号：TQ127.2[化学工程—无机化工]