PANI/TIO复合材料的制备及其在聚氨酯涂料中的应用  

Preparation of PANI/TIO composites and their application in polyurethane coatings

作　　者：周敏[1] ZHOU Min(Sanmenxia Polytechnic,Sanmenxia 472000,China)

机构地区：[1]三门峡职业技术学院,河南三门峡472000

出　　处：《无机盐工业》2023年第1期112-117,共6页Inorganic Chemicals Industry

摘　　要：采用原位聚合的方法在锑掺杂氧化锡/氧化钛复合材料(TIO)上包覆一层完整的聚苯胺(PANI)膜,成功制备了PANI/TIO复合材料,将其作为水性聚氨酯涂料的填料,制备了水性聚氨酯导电涂料。利用X射线粉末衍射、透射电镜、红外光谱等分析方法对复合材料进行表征,利用涂层机械性能测试对导电涂料进行了测试。同时得到了制备PANI/TIO三元复合材料的最佳工艺条件:苯胺(An)包覆量为15%、m(An)/m[磺基水杨酸(SSA)]=0.4、m(An)/m[过硫酸铵(APS)]=3。在最佳工艺条件下,得到的PANI/TIO复合材料体积电阻率为15.3Ω·cm。实验结果表明:当填料比为15%时涂层机械性能最佳,硬度为2B、耐冲击力为50 cm、附着力为1级、涂层表面电阻为3.56×10^(5)Ω/m^(2),该导电涂料有较好的应用前景。A complete polyaniline(PANI) film was coated on the antimony-doped tin oxide/titanium oxide composite(TIO) by in-situ polymerization to prepare PANI/TIO composites successfully,and the waterborne polyurethane conductive coating was prepared by using it as the filler of the waterborne polyurethane coating.The composites were characterized by Xray powder diffraction,transmission electron microscopy,infrared spectroscopy and other analytical methods,and the conductive coatings were tested by coating mechanical properties. At the same time,the optimal process conditions for the preparation of PANI/TIO ternary composites were found as follows:An coating amount of 15%,m(An)∶m(SSA)=0.4,m(An)∶m(APS)=3.The prepared PANI/TIO composites had a volume resistivity of 15.3 Ω·cm.The results showed that when the filler ratio was 15%,the coating had the best mechanical qualities,with hardness of 2B,impact resistance of 50 cm,adhesion of grade 1,and surface resistance of 3.56×10^(5) Ω/m^(2).The coating had a wide range of application prospects.

关 键 词：锑掺杂氧化锡/氧化钛复合材料 涂料 聚氨酯 导电 改性 

分 类 号：TB333[一般工业技术—材料科学与工程]