亲水性Fe_3O_4纳米粒子的表面改性研究  

Surface Modification of Hydrophilic Fe_3O_4 Nano-particles

作　　者：谷峪[1] 侯彩霞[1] 高鹏飞[1] 邓晓臣[1] 

机构地区：[1]河北联合大学迁安学院,河北迁安064400

出　　处：《河北化工》2013年第01X期33-36,共4页Hebei Chemical Industry

摘　　要：采用3种不同性质的硅烷偶联剂KH-550、KH-560和KH-570分别对Fe3O4纳米粒子进行表面改性,并通过亲油化度及表面羟基数的实验,筛选出改性效果最好的偶联剂KH-570。实验得出的最佳改性工艺条件为:改性偶联剂浓度为10%,溶液pH值为6,水解时间为1h,改性温度为80℃。结合红外光谱(FT-IR)及扫描电子显微镜(SEM)仪器进行分析,结果表明,硅烷偶联剂KH-570可有效进行Fe3O4表面改性。To use three kinds of silane coupling agents KH-550、KH-560 and KH-570 to modify the surface of Fe3O4 nano-particles,and to prove the coupling agent KH-570 was the best one.To find the optimal conditions were that silane coupling agent dosage was 10%,solution pH value was 6,hydrolysis time was 1 h,reaction temperature was 80 ℃.And to produce the magnetic microspheres in the best conditions.To test the properties of modified Fe3O4 nano-particles using FT-IR and SEM.The results showed that the silane coupling agent could be effectively modified Fe3O4 nano-particles.

关 键 词：磁性FE3O4纳米粒子 表面改性 性能 硅烷偶联剂 

分 类 号：TB383[一般工业技术—材料科学与工程]