PET薄膜用银包铜导电浆料的制备与性能分析  

Preparation and performance analysis of Ag/Cu conductive paste for PET thin film

作　　者：连福奇 苏晓磊 刘毅 贾艳 LIAN Fuqi;SU Xiaolei;LIU Yi;JIA Yan(School of Materials Science and Engineering, Xi’an Polytechnic University, Xi’an 710048, China)

机构地区：[1]西安工程大学材料工程学院,陕西西安710048

出　　处：《西安工程大学学报》2022年第1期39-47,共9页Journal of Xi’an Polytechnic University

基　　金：陕西省重点研发计划项目(2020GY-035);西安市碑林区科技计划项目(GX2143)。

摘　　要：针对银系导电浆料价格昂贵、铜系导电浆料易氧化等问题,以银包铜粉为导电填料,以聚氨酯改性丙烯酸树脂为基体树脂,制备系列银包铜粉导电浆料。将其涂覆在PET薄膜上制备银包铜粉导电浆料涂层;采用热固化工艺固化,得到银包铜粉导电涂层。实验结果表明,当银包铜粉的质量分数为75%,制备的导电浆料性能达到最佳:电阻率为1.50×10^(-3)Ω·cm,与PET薄膜基材之间的结合力为22.55 N;在酸性腐蚀环境中显示了良好的导电性能;经弯折50次后,其性能未有显著变化,表现出良好的耐腐蚀性能和抗弯折性能。In view of the high price of Ag paste and easy oxidation of pure Cu paste,a series of Ag/Cu conductive paste were prepared using Ag/Cu powder as the conductive filler and polyurethane-modified acrylic resin(PUA)as a matrix.The Ag/Cu conductive coating was prepared by coating the paste on the PET thin film and finally obtained by thermal curing process.The results show that the coating presents the optimum performance when the content of Ag/Cu powder is 75%:the resistivity is 1.5×10^(-3)Ω·cm;the binding force between conductive coating and PET film 22.55 N.The paste also presents an excellent conductive property in the acid corrosive environment.There is no significant change after 50 times of bending,showing good corrosion and bending resistance.

关 键 词：导电浆料 PET薄膜 聚氨酯改性丙烯酸树脂 导电性 耐腐蚀性 

分 类 号：TJ430.4[兵器科学与技术—火炮、自动武器与弹药工程]