摘要
为了获得高活性和优良导电性的氧化锡锑(ATO)纳米粉体,以五水合四氯化锡(SnCl_(4)·5H_(2)O)和氯化锑(SbCl_(3))为原料,碳酸氢铵(NH_(4)HCO_(3))为沉淀剂,醋酸(CH_(3)COOH)为助溶剂,乙醇(CH_(3)CH_(2)OH)为反应介质,通过固液异相共沉淀反应制备ATO纳米粉体,讨论了反应介质、CH_(3)COOH添加量、锑掺杂量和煅烧温度对ATO纳米粉体性能的影响。利用X射线衍射仪(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、能量色散X射线光谱仪(EDX)和Brunauer-Emmett-Teller比表面积测试仪(BET),以及电阻率测试仪对ATO纳米粉体结构进行表征。结果表明:ATO纳米粉体具有四方金红石结构,粒子形状均匀,近似球形,一次粒径达到5~10 nm,比表面积约为85.00 m_(2)/g,电阻率为1.0Ω·cm。利用辊涂法将制备好的ATO水性防静电涂料涂于普通PET薄膜表面,其表面电阻值明显下降,当ATO的固含量大于60%时,其表面电阻值下降到约10^(5)Ω,完全满足防静电领域的基本要求。
To obtain antimony doped tin oxide(ATO)nanopowders with high activity and excellent electrical conductivity,with SnCl_(4)·5H_(2)O and SbCl_(3) as the raw materials,and NH_(4)HCO_(3) as the neutralizing agent,CH_(3)COOH as the cosolvent,CH_(3)CH_(2)OH as the reaction medium,antimony doped tin oxide nanopowders were prepared by solid-liquid heterogeneous coprecipitation reaction in this paper.The effects of reaction medium,cosolvent content,antimony amount and calcination temperature on the nanopowders were discussed.The structure and properties of ATO powders were characterized by X-Ray Diffraction(XRD),Transmission Electron Microscopy(TEM),Scanning Electron Microscopy(SEM),Brunauer-Emmett-Teller surface area measurement(BET),Energy Dispersive X-Ray Spectroscopy(EDX),and Resistance Tester.The results show that ATO nanopowders have a structure of tetrahedral rutile and a uniform shape of approximately sphere,whose primary particle size is 5~10 nm and specific surface area is about 85.00 m^(2)/g,and the resistivity of ATO nanopowders reaches 1.0Ω·cm.When the waterborne antistatic coatings we fabricated are applied on the surface of polyethylene terephthalate(PET)film by roller coating method,the surface resistance value of film are reduced.When the solid content of ATO is more than 60%,the surface resistance value of thin film decreases to 10^(5)Ω,which well meets the requirement of the antistatic electricity field.
作者
何喜春
张海洋
黄萍
马钰芸
姚尹超
尹作栋
HE Xi-chun;ZHANG Hai-yang;HUANG Ping;MA Yu-yun;YAO Yin-chao;YIN Zuo-dong(College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China)
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2021年第4期1063-1071,共9页
Journal of Guangxi University（Natural Science Edition）
基金
国家自然科学基金资助项目(61564001)
南宁市科学研究与技术开发计划项目(20155347)。
关键词
纳米粉体
共沉淀反应
性能
导电性
防静电
nanoparticles
coprecipitation
characterization
electric conductivity
antistatic agents
