聚苯胺微乳液的连续化合成及在水性聚氨酯涂料中的应用  

Continuous Flow Synthesis of Polyaniline Microemulsion and Its Application inWaterborne Polyurethane Coatings

作　　者：邰宇航 孙佳宁 乔文强 王植源 Yuhang Tai;Jianing Sun;Wenqiang Qiao;Zhiyuan Wang(Department of Polymer Science,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学化工学院高分子材料系精细化工国家重点实验室,辽宁大连116024

出　　处：《高分子材料科学与工程》2023年第11期111-118,共8页Polymer Materials Science & Engineering

摘　　要：基于连续流反应器,采用微乳液聚合的方式合成了十二烷基苯磺酸(DBSA)掺杂的聚苯胺(PANI-DBSA),所制得的PANI-DBSA微乳液不经过后处理可直接与非离子水性聚氨酯(WPU)涂料以一定比例共混制备涂层。使用傅里叶变换红外光谱仪、紫外可见光分光光度计、扫描电镜、X射线衍射仪等对所制备的聚苯胺进行了结构表征,使用四探针电导率测试仪、体积表面电阻率测试仪等对所制备的聚苯胺与共混涂料进行电导率与电阻率测试。结果表明,通过连续流微反应器制备的PANI-DBSA具有良好的导电性,将其直接用于非离子水性聚氨酯涂层的改性,能够实现10^(7)~10^(11)Ω共5个数量级之间的表面电阻率调控,且当w(PANI-DBSA/WPU)=10%时,共混涂层具有最低的表面电阻率,为4.83×10^(7)Ω。The dodecylbenzenesulfonic acid(DBSA)doped polyaniline(PANI-DBSA)was synthesized by microemulsion polymerization based on a continuous flow reactor.Without post-treatment,the prepared PANI-DBSA microemulsion can be directly blended with nonionic waterborne polyurethane(WPU)to prepare coatings.The structure of PANI-DBSA was characterized by FT-IR,UV-visible spectrophotometer(UV-vis),SEM and XRD.Four-probe conductivity meter and volume surface resistivity meter were used to measure the conductivity and resistivity of PANI and its blend coatings.The results show that the PANI-DBSA has a good electrical conductivity.When the microemulsion of PANI-DBSA was directly used in the modification of WPU coatings,the surface resistivity can range from 10^(7)Ω to 10^(11)Ω.The blend coating has the lowest surface resistivity of 4.83×10^(7)Ω when the mass ratio of PANI-DBSA/WPU is 10%.

关 键 词：连续流反应器 微乳液聚合 聚苯胺 水性聚氨酯 表面电阻率 

分 类 号：TQ316.334[化学工程—高聚物工业]