YANG Keke1，LI Xiaodong1，CAO Jiakai1，SUN Xiaoyao1，JIANG Bing1，LIU Jie2
(1.Jiangsu Novoray New Material Co.Ltd.,Lianyungang 222000,China；2.School of Chemical Engineering, National Special Superfine Powder Engineering Research Center,Nanjing University of Science &Technology,Nanjing 210094,China)
Abstract:The modification of spherical silica powder with silane coupling agent KBM-573 under hydrolysis conditions was reported.The optimum process parameters were obtained according to the investigation of modificaiton time,modification temperature and modifier dosage.The characterization of spherical silica powder before and after modification were conducted.The indicators of PTFE copper clad laminates tests were executed.The results show that both of the content of surface hydroxyl and oil absorption value of the modified spherical silica powder decrease obviously,indicating that KBM-573 is grafted on the surface of spherical silica powder by chemical bonds successfully.Besides,the spherical silica powder after modification show significantly increase dispersivity.In addition,the spherical silica powder modified with KBM-573 show better heat resistance and application performance than that of KH550.
Keywords:spherical silica powder；silane coupling agent；surface modification；copper clad laminate
中图分类号：TQ127.2 文献标志码：A
文章编号：1008-5548(2020)05-0060-06
DOI:10.13732/j.issn.1008-5548.2020.05.010
收稿日期： 2020-03-05，修回日期：2020-03-24，在线出版时间：2020-07-08 15:34。
基金项目：工业和信息化部电子信息产业发展基金项目，编号：工信部运[2008]97号；江苏省科学技术厅科技成果转化专项资金项目，编号：BA2006047；江苏省科学技术厅科技攻关计划项目，编号：BE2003308。
第一作者简介：杨珂珂(1988—)，男，硕士，工程师，研究方向为无机粉体材料的开发。E-mail：yangkk@novoray.com。
通信作者简介：刘杰(1987—)，男，博士，副教授，硕士生导师，研究方向为微纳米技术。E-mail：jie_liu1987@163.com。
