水性纳米掺锑二氧化锡(ATO)浆料的研制  

Preparation of waterborne nano-antimony doped tin oxide (ATO) slurry

作　　者：张贵军[1] 陈中华[1,2] 姜疆[1] 余飞[1] 曾幸荣[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]广东省教育部高性能环境友好纳米复合涂料产学研研发基地,广东广州510520

出　　处：《电镀与涂饰》2009年第8期47-51,共5页Electroplating & Finishing

基　　金：国家自然科学基金(50073006);广东省科技攻关项目(2003B10507);广州市科技攻关重大项目(2005Z1–D0041)

摘　　要：采用硅烷偶联剂对纳米掺锑二氧化锡(ATO)粒子表面进行化学改性,以分散剂对其进行物理包覆,调节分散工艺、体系黏度和pH,获得了稳定性可达到两个月以上的水性纳米ATO浆料。傅立叶红外光谱分析表明,硅烷偶联剂可以有效地包裹在纳米粒子表面。当采用硅烷偶联剂KH570,其用量为纳米ATO粒子质量的1.5%时,包覆效果最好;选用嵌段型分散剂3275,其用量为体系质量的0.2%时,分散效果最好;当体系黏度大于88mPa·s和pH=10时,浆料稳定性最好。透射电子显微镜观测表明,纳米ATO粒子获得了良好分散。A waterborne nano-ATO slurry with a stability for more than 2 months was developed by using silane coupling agent to chemically modify and dispersant to physically cover the surface of nano-ATO in combination with adjusting dispersion process, viscosity and pH value of the slurry. FTIR analysis showed that silane coupling agent can be connected to the surface of nano-ATO. The optimal coverage effect was obtained when silane coupling agent KH570 was adopted with a dosage of 1.5% of the mass of nano-ATO, and the optimal dispersion effect was obtained when block copolymer dispersant 3275 was adopted with a dosage of 0.2% of the mass of slurry. The slurry has an optimal stability at viscosity 〉88 mPa.s and pH = 10. The transmission electron microscopic observation indicated that nano-ATO particle has a good dispersion in the slurry.

关 键 词：掺锑二氧化锡 纳米粒子 改性 水性浆料 分散 稳定性 

分 类 号：TB383[一般工业技术—材料科学与工程]