CAJ | 학술논문

电磁波干扰越来越多地存在于我们的日常生活中,许多微电子封装材料需要具备屏蔽电磁波的功能.聚吡咯由于具有良好的导电性能和环境稳定性,表现出优异的电磁屏蔽能力.我们利用化学聚合法在绝缘环氧模塑料封装材料表面制备得到了导电聚吡咯薄膜,用X射线光电子能谱、红外光谱、扫描电子显微镜对聚合物薄膜进行了表征.通过SEM分析表明,经对甲基苯磺酸钠掺杂后,制备得到的聚吡咯薄膜均匀连续、致密平整,用四探针测试仪测得掺杂后聚吡咯薄膜的电导率达到了2.3×103S/m以上.
전자파간우월래월다지존재우아문적일상생활중,허다미전자봉장재료수요구비병폐전자파적공능.취필각유우구유량호적도전성능화배경은정성,표현출우이적전자병폐능력.아문이용화학취합법재절연배양모소료봉장재료표면제비득도료도전취필각박막,용X사선광전자능보、홍외광보、소묘전자현미경대취합물박막진행료표정.통과SEM분석표명,경대갑기분광산납참잡후,제비득도적취필각박막균균련속、치밀평정,용사탐침측시의측득참잡후취필각박막적전도솔체도료2.3×103S/m이상.
Many electronic packagings need shielding electromagnetic interference (EMI), because a great use of electronic devices for communication, computation and automation and more and more plastic electronic device shells instead of metal make electromagnetic wave transmit very easily and interference the normal work of electronic apparatus. As a conducting polymer material, polypyrrole (PPy) shows a favorable application in EMI shielding because of its high electrical conductivity and outstanding stability. In this paper high conductivity polypyrrole film was prepared on the surface of insulating epoxy resin packaging substrate by chemical polymerization. The samples of PPy film were characterized by X-ray photoelectron spectroscopy (XPS), infrared spectrum (IR) and scanning electron microscopy (SEM). SEM images showed that polypyrrole film was homogeneous, continuous, even and compact by doping STS. The conductivity of STS doping PPy film was 23S/cm measured using the four-point probe instrument.