干法改性电子级球形二氧化硅微粉及其变色研究  

Study on Dry Modifi cation of Electronic Grade Spherical Silica Micro Powder and Its Color Changing

作　　者：阮建军 张建平 顾光磊 冯宝琦 曹家凯 孙小耀 Ruan Jianjun;Zhang Jianping;Gu Guanglei;Feng Baoqi;Cao Jiakai;Sun Xiaoyao(Jiangsu Novoray New Material Co.,Ltd.,Jiangsu,222000;Novoray New Material(Lianyungang)Co.,Ltd.,Jiangsu,222000)

机构地区：[1]江苏联瑞新材料股份有限公司,江苏222000 [2]联瑞新材(连云港)有限公司,江苏222000

出　　处：《当代化工研究》2025年第5期1-5,共5页Modern Chemical Research

摘　　要：采用KBM-573硅烷偶联剂对电子级球形二氧化硅微粉进行干法改性,以改善其表面性能。通过对改性工艺参数的优化,探讨了硅烷偶联剂用量、反应温度和反应时间对改性效果及粉体外观颜色的影响。利用红外光谱(Fourier Transform Infrared Spectroscopy,FTIR)和扫描电镜(Scanning Electron Microscopy,SEM)等表征手段对改性后的二氧化硅微粉进行分析。结果表明:经KBM-573干法改性的电子级球形二氧化硅微粉表面成功引入有机官能团,憎水性和分散性显著提升,且具备出色的流动性。此外,改性过程中发现二氧化硅微粉外观颜色会随改性温度和时间的变化而改变,即随着改性温度升高或改性时间增加,粉体由白色氧化为粉色,当温度进一步升高时,因热解而转变为黄色。KBM-573 silane coupling agent was used for dry modification of electronic grade spherical silica micro powder to improve its surface properties.By optimizing the modification process parameters,the effects of silane coupling agent dosage,reaction temperature,and reac-tion time on the modification effect and powder appearance color were explored.The modified silica micro powder was analyzed using characteri-zation methods such as fourier transform infrared spectroscopy(FTIR)and scanning electron microscopy(SEM).The results showed that the elec-tronic grade spherical silica micro powder surface modified by KBM-573 dry method successfully introduced organic functional groups,significantly improved hydrophobicity and dispersibility,and exhibited excellent flowability.In addition,it was found during the modification process that the ap-pearance color of silica micro powder changes with the modification temperature and time.That is,as the modification temperature or time increas-es,the powder oxidizes from white to pink,and when the temperature further increases,it turns yellow due to pyrolysis.

关 键 词：电子级 球形二氧化硅微粉 硅烷偶联剂 干法改性 变色 

分 类 号：TQ127.2[化学工程—无机化工]