聚乙二醇表面改性对纳米Si_3N_4分散性的影响研究  

Effect of Surface Modification of Polyethylene Glycol on Dispersibility of Nano-Si_3N_4

作　　者：赵兴祥 任欣 李家柱[1] 殷军港[1] ZHAO Xing-xiang;REN Xin;LI Jia-zhu;YIN Jun-gang(School of Chemistry and Chemical Engineering, Yantai University, Shandong Yantai 264000, China)

机构地区：[1]烟台大学化学化工学院,山东烟台264000

出　　处：《广州化工》2019年第9期55-57,共3页GuangZhou Chemical Industry

基　　金：国家自然科学基金(51472212)

摘　　要：用二氯二甲基硅烷和聚乙二醇1500对纳米氮化硅(Si_3N_4)粉体进行表面改性,通过衰减全反射红外光谱(ATR-FTIR)、扫描电镜(SEM)、能谱仪(EDS)、固含量测定和沉降实验来研究纳米Si_3N_4的表面改性效果和分散性。结果证明:二氯二甲基硅烷和聚乙二醇1500(PEG1500)成功接枝到纳米Si_3N_4粉体表面,表面改性后的纳米Si_3N_4粉体颗粒均匀,有效阻止了纳米颗粒的团聚,提高了纳米颗粒的分散性。Dichlorodimethylsilane and polyethylene glycol 1500(PEG1500) were used to modify the surface of nano-silicon nitride (Si 3N 4 ). The effects of surface modifying nano-Si 3N 4 were detected and the dispersive was evaluated through attenuated total reflection fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), solid content determination and sedimentation experiments. Results showed that dichlorodimethylsilane and polyethylene glycol 1500 (PEG1500) were successfully grafted onto the surface of nano-Si 3N 4 powder, the particle of nano-Si 3N 4 was uniform and the agglomeration of nano-particles was effectively restricted after surface modification. The dispersibility of the nanoparticles was improved.

关 键 词：纳米氮化硅 表面改性 分散性 

分 类 号：TQ174.6[化学工程—陶瓷工业]