【正文】
畢 業(yè) 論 文 題 目: 基于 導(dǎo)電油墨 CuAg 復(fù)合結(jié)構(gòu)的制備及性能研 究 學(xué) 院: 化學(xué)化工學(xué)院 專 業(yè): 化學(xué)工程與工藝 畢業(yè)年限: 20xx 學(xué)生姓名: 歐陽瓊林 學(xué) 號(hào): 20xx7302233 指導(dǎo)教師: 唐小華 基于導(dǎo)電油墨 CuAg復(fù)合結(jié)構(gòu)的制備于性能研究 1 中文摘要 新時(shí)代對(duì)電子印刷技術(shù)的要求,使人們?cè)絹碓綄⒛抗馔断蚪饘偌{米導(dǎo)電油墨。幾十年來,國(guó)內(nèi)外研究的重點(diǎn)是銀墨,其電阻率小,抗氧化性好 ,經(jīng)久耐用 , 但其價(jià)格昂貴限制了它們?cè)诠I(yè)上的大規(guī)模推廣。 另一方面, 銅墨的電阻率也很小,而且 價(jià)格低廉,但銅墨的抗氧化能力差,不能長(zhǎng)久保持其優(yōu)異性能。 為結(jié)合銀墨和銅墨的優(yōu)點(diǎn),相互彌補(bǔ)二者的不足,本文用連續(xù)還原法 , 制備了 在 一縮二乙二醇溶液中分散較好的 CuAg 復(fù)合 結(jié)構(gòu)納米顆粒。方法為: 先用抗壞血酸還原氫氧化銅, 得到 納米銅顆粒, 再 與 AgNO3 溶液 反應(yīng) 制備 CuAg 納米 片 /顆粒 。 通過掃描電鏡( SEM) 、 X射線衍射儀( XRD) 、 X 射線能譜儀( EDX)、 紫外吸收光譜( UVvis) 等 的表征證明得到 了 CuAg復(fù)合 結(jié)構(gòu)的納米顆粒。 以所 制備的 CuAg納米片 /顆粒作為 導(dǎo)電填料, 加入 相應(yīng)添加劑配制 出 了導(dǎo)電油墨 。通過絲網(wǎng)印刷的方法,將油墨印刷 于 柔性的聚酰亞胺基底上。 在 300℃ 氮?dú)鉃楸Wo(hù)氣 氛 條件下 ,燒結(jié) 90min 得到 導(dǎo)電圖案。 通過 多功能 電阻儀測(cè)電阻 證明 其導(dǎo)電 性很 好?;趯?dǎo)電性 好、 抗氧化性強(qiáng)和成本低廉 這些優(yōu)點(diǎn),銅銀復(fù)合導(dǎo)電油墨有望在工業(yè)上 大規(guī)模 推廣。 關(guān)鍵 字 :金屬導(dǎo)電油墨 復(fù)合 結(jié)構(gòu) 納米顆粒 /片 連續(xù)還原法 抗氧化能力 成本低廉 基于導(dǎo)電油墨 CuAg復(fù)合結(jié)構(gòu)的制備于性能研究 2 Abstrcat With the improved requirement of printed electronics technology, more and more attention has been paid to metallic nanoparticle conductive ink. During the past decades, the research has focus on sliver ink, which possess the properties of low electrical resistivity and excellent antioxidation ability, but the high cost restrict its largescale application in industry. On the other hand, the copper ink also has low resistivity with significant lower expenditure pared to silver ink, yet the poverty of antioxidant makes it difficult on keeping its splendid properties. To unite the advantages of both sides and offset the shortings, CuAg nanoparticles/nanoflakes owing the posite structure with good dispersion in diethylene glycol via successive reduction were prepared. Specific process is as follows: Firstly, copper hydroxide was reduced with Lascorbic through polyols process to obtain Cu nanoparticles. Then silver nitrate reacted with Cu nanoparticles to prepare CuAg nanoparticles/nanoflakes. Characterizations by fieldemission scanning electron microscope(SEM), Xray diffraction(XRD), energy dispersive Xray spectroscopy (EDX) and UVvis absorption spectroscopy have been carried out, results prove the product to be CuAg nanoparticle/nanoflakes. Conductive ink were prepared using the CuAg nanoparticles/nanoflakes as conductive filler and adding some other additives. By the method of silk screen printing, CuAg ink was printed on the flexible substrate of polyimide. After sintering at 300℃ for 90min under nitrogen atmosphere ,conductive pattern was obtained. The pattern has low electrical resistivity determined by multifunction resistance instrument Because of the merits of low 基于導(dǎo)電油墨 CuAg復(fù)合結(jié)構(gòu)的制備于性能研究 3 electrical resistivity, outstanding antioxidation and the remarkable cost reduction, the CuAg ink is expect to be largescale popularized in industry. Keywords: metal conductive ink, posite structure, nanoparticles/nanoflakes, successive reduction, antioxidation ability 基于導(dǎo)電油墨 CuAg復(fù)合結(jié)構(gòu)的制備于性能研究 4 目錄 中文摘要 ........................................................................................................................ 1 Abstrcat .......................................................................................................................... 2 一、概述 ........................................................................................................................ 5 引言 .................................................................................................................. 5 導(dǎo)電油墨簡(jiǎn)介 .................................................................................................. 5 納米顆粒導(dǎo)電油墨 .....................................................................................