本文關鍵詞：納米銀的合成及其在UV導電油墨中的應用　出處：《北京印刷學院》2015年碩士論文　論文類型：學位論文

  更多相關文章： 導電油墨 納米銀 巰基乙酸聚乙二醇酯 紫外光固化

【摘要】：隨著科學技術(shù)的進步,柔性電路板、無線射頻識別系統(tǒng)(RFID)、薄膜開關、薄膜電阻等迅速發(fā)展,從而推動了導電油墨技術(shù)的發(fā)展。紫外光固化導電油墨是近些年開發(fā)的導電油墨新產(chǎn)品,與普通導電油墨相比,紫外光固化導電油墨將紫外光固化技術(shù)與導電油墨技術(shù)結(jié)合起來,賦予了這種導電油墨良好的印刷適性以及廣闊的應用前景。本論文描述了制備紫外光固化納米銀導電油墨的主要過程并對結(jié)果進行了分析。包括以下三個部分： 首先本文以巰基乙酸與PEG-400為原料通過酯化反應制備了巰基乙酸聚乙二醇酯,并對影響酯化率的因素進行探討。結(jié)果表明,合成反應溫度、反應時間、催化劑種類、反應物的投放比以及脫水劑的用量都會對酯化率產(chǎn)生影響。 其次又以[Ag(NH3)2]OH溶液為前驅(qū)體,葡萄糖為還原劑,巰基乙酸聚乙一醇酯為保護劑,通過液相還原法控制反應條件制備出了納米銀膠體。并通過紫外可見光分光光度計、傅里葉紅外光譜儀、X射線衍射儀、場發(fā)射掃描電子顯微鏡、場發(fā)射透射電子顯微鏡、ZETA電位儀等實驗手段對所制備的納米銀膠體進行表征,結(jié)果表明用此種方法制備出的納米銀膠體粒徑可控,尺寸均一、分散性以及形貌良好,且長期儲存比較穩(wěn)定。并從熱力學角度解釋了其穩(wěn)定性好的原因。 最后,以納米銀為導電填料制備了紫外光固化納米銀導電油墨,并對其導電性能進行研究。結(jié)果表明導電填料填充量、燒結(jié)溫度、燒結(jié)時間、分散劑用量以及光引發(fā)劑的用量都會對導電油墨的電阻率產(chǎn)生影響。
[Abstract]:With the development of science and technology, flexible circuit board, radio frequency identification system (RFID), thin film switch, film resistance and so on are developing rapidly. UV curable conductive ink is a new product of conductive ink developed in recent years, compared with common conductive ink. UV curable conductive ink combines UV curing technology with conductive ink technology. This paper describes the main process of preparing UV curable nano-silver conductive ink and analyzes the results. In this paper, polyethyleneglycol mercaptoacetate was prepared by esterification of mercaptoacetic acid and PEG-400, and the factors affecting the esterification rate were discussed. The results showed that the reaction temperature was high. The reaction time, the type of catalyst, the ratio of reactants and the amount of dehydrating agent will affect the esterification rate. Then again, [Ag(NH3)2] OH solution was used as precursor, glucose as reducing agent and mercaptoacetate as protective agent. Nano-silver colloid was prepared by liquid-phase reduction method under the control of reaction conditions. The colloid was prepared by UV-Vis spectrophotometer, Fourier transform infrared spectrometer (FTIR), X-ray diffractometer, and field emission scanning electron microscope (SEM). Field emission transmission electron microscope (TEM) and Zeta potentiometer were used to characterize the silver colloids. The results showed that the size of the colloids prepared by this method was controlled and the size was uniform. The dispersity and morphology are good, and the long-term storage is relatively stable. The reasons for the good stability are explained from the viewpoint of thermodynamics. Finally, UV curable nano-silver conductive ink was prepared with nano-silver as conductive filler, and its electrical conductivity was studied. The results showed that the amount of conductive filler, sintering temperature, sintering time. The amount of dispersant and the amount of photoinitiator will affect the resistivity of conductive ink.
【學位授予單位】：北京印刷學院
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TS802.3;TB383.1

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