銀納米結(jié)構(gòu)及其對導(dǎo)電膠電性能影響研究
[Abstract]:The conductive adhesive is a key material for electronic component packaging, electrode and interconnection, and is mainly used in various fields of electronic industry such as surface packaging technology and sensitive element. With the development of electronic components in the direction of miniaturization, multi-function and flexibility, the research on the nano-scale of metal conductive filler is being carried out at home and abroad. In which, the nano-silver-filled conductive adhesive has become a hot spot in the field. At present, the influence of nano-silver as the conductive filler on the performance of the conductive adhesive is positive or negative, and there are many imperfections to be studied and solved. in that invention, the spherical nano-silver particle, the nano-silver wire and the nano-silver film are respectively prepared by adopting a liquid-phase reduction method and a solvothermal method, The influence of the filling amount, the surface property and the sintering behavior on the electrical properties of the conductive adhesive is analyzed, and the conductive mechanism of the nano-silver-filled conductive adhesive is also analyzed. firstly, a traditional liquid-phase reduction method is adopted to prepare the spherical nano-silver particles with the diameter of 30-50 nm, the nano-silver wire with the average diameter of 450 nm and the length of 20-70 & mu; m and the nano-silver film with the length of 100-300nm are prepared by a solvothermal method, and the nano-silver is subjected to surface treatment by adopting the glutaric acid ethanol solution; The sintering characteristics of nano-silver before and after surface treatment were studied. The experimental results show that the nano-silver particles are easy to agglomerate after the glutaric acid treatment, the size of the nano-silver wire is short, and the nano-silver film does not change obviously. There are two effects of physical and chemical bonding between the surface-adsorbed acid groups and the nano-silver. And the sintering temperature after the three nano-silver surface treatment is reduced. The relationship between the curing process and the volume resistivity of the conductive adhesive was studied. The experimental results show that the low-temperature long-time curing is beneficial to the improvement of the conductivity of the silver paste. The high curing temperature is favorable for improving the conductivity of the silver paste with low silver content. The post-curing heat treatment has little influence on the conductivity and microstructure of the cured complete sample. In the end, the effect of the nano-silver on the electrical properties of the conductive adhesive was studied by using the nano-silver as a conductive filler. The research shows that the nano-silver wire can promote the curing of the conductive adhesive, shorten the forming time of the internal conductive path and lower the curing temperature. When the content of the nano-silver wire is only 35% by weight, the volume resistivity of the conductive adhesive after curing at 168 DEG C is 9.48-10-4惟 路 cm, and the volume resistivity after curing at 300 DEG C is reduced to 8.21-10-5惟 路 cm. In that nano-silver wire, the nano-silver particle composite fil conductive adhesive is doped, so that the formation time of the conductive network in the curing process is prolonged, and the resistance is increased. When the content of the nano-silver wire and the nano-silver particles is 65% by weight, the volume resistivity of the conductive adhesive at the temperature of 180 DEG C is only 1.37-10-4惟 路 cm, and the curing volume resistivity at the temperature of 300 DEG C is only 9.60-10-5惟 路 cm. But the high-temperature sintering or surface treatment is beneficial to improving the electrical property of the nano-silver wire-nano-silver particle composite-filled conductive adhesive. The conductive adhesive is prepared by compounding the nano silver wire and the micron silver sheet as the conductive filler, and the research shows that after the nano silver wire is introduced, the forming time of the conductive network in the base body is shortened, and the curing temperature is also reduced. The bulk resistivity can be significantly reduced at higher curing temperatures. When the silver content is 75% by weight and the curing temperature is 250.degree. C., the resistivity is 6.72 to 10 to 5. O The conductive adhesive is prepared by compounding the nano-silver particles or the nano-silver film and the micron silver sheet as a conductive filler, But the nano-silver particles with the surface treated by the glutaric acid can reduce the conductivity and reduce the conductivity. In the case of high-temperature curing, the conductive path is formed between the particles due to the sintering behavior of the nano-silver, so that the conductivity is improved.
【學(xué)位授予單位】:電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TB383.1;TQ437.6
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 陳洪江;虞鑫海;劉萬章;;導(dǎo)電膠的應(yīng)用現(xiàn)狀[J];粘接;2008年11期
2 毛蔣莉;虞鑫海;劉萬章;;導(dǎo)電膠的應(yīng)用現(xiàn)狀[J];粘接;2009年10期
3 閻睿;虞鑫海;劉萬章;;導(dǎo)電膠性能的影響因素與表征[J];化學(xué)與黏合;2012年02期
4 ;導(dǎo)電膠[J];樹脂粘合劑;1978年02期
5 蔡武峰;;國內(nèi)導(dǎo)電膠的最近進(jìn)展及其與國外的差距[J];粘合劑;1987年01期
6 ;導(dǎo)電膠[J];橡膠參考資料;2000年12期
7 傅振曉,張其土,凌志達(dá);新型導(dǎo)電膠的研究與應(yīng)用[J];江蘇陶瓷;2001年02期
8 肖久梅,黃繼華;微電子互連用導(dǎo)電膠研究進(jìn)展[J];中國膠粘劑;2004年06期
9 秦連城;;導(dǎo)電膠導(dǎo)電性能的實驗研究[J];光學(xué)精密工程;2005年S1期
10 嚴(yán)欽云;周繼承;楊丹;;導(dǎo)電膠的粘接可靠性研究進(jìn)展[J];材料導(dǎo)報;2005年05期
相關(guān)會議論文 前10條
1 陳志強;方正;吳振玉;肖利;;導(dǎo)電膠的制備及其導(dǎo)電性質(zhì)研究[A];2004年全國冶金物理化學(xué)學(xué)術(shù)會議專輯[C];2004年
2 彭景翠;陳小華;;一種有機導(dǎo)電膠的直流電阻—溫度特性研究[A];首屆中國功能材料及其應(yīng)用學(xué)術(shù)會議論文集[C];1992年
3 馮永成;;新型納米導(dǎo)電膠的研究[A];科技、工程與經(jīng)濟(jì)社會協(xié)調(diào)發(fā)展——中國科協(xié)第五屆青年學(xué)術(shù)年會論文集[C];2004年
4 高玉;余云照;;導(dǎo)電膠固化過程中導(dǎo)電網(wǎng)絡(luò)形成的機理[A];北京粘接學(xué)會第十一屆年會暨技術(shù)論壇論文集[C];2003年
5 劉瑞中;;牛角式支架在專用導(dǎo)電膠測試中的應(yīng)用[A];第三屆全國青年印制電路學(xué)術(shù)年會論文匯編[C];2006年
6 顧乾;;導(dǎo)電膠測試的原理與使用[A];第六屆全國印制電路學(xué)術(shù)年會論文匯編[C];2000年
7 王健;康繼軍;丁培道;王釗;周正;;納米陶瓷粉末填料對無機導(dǎo)電膠材料性能影響的研究[A];納米材料和技術(shù)應(yīng)用進(jìn)展——全國第二屆納米材料和技術(shù)應(yīng)用會議論文集(下卷)[C];2001年
8 薛偉鋒;劉炳龍;;微波芯片元件的導(dǎo)電膠粘接工藝與應(yīng)用[A];2011年機械電子學(xué)學(xué)術(shù)會議論文集[C];2011年
9 單蘭芳;;導(dǎo)電膠在薄膜粘接工藝中的應(yīng)用[A];第十四屆全國混合集成電路學(xué)術(shù)會議論文集[C];2005年
10 楊小峰;;CLD-25常溫固化導(dǎo)電膠研制及應(yīng)用[A];中國電子學(xué)會化學(xué)工藝專業(yè)委員會第五屆年會論文集[C];2000年
相關(guān)重要報紙文章 前6條
1 遼寧 谷勁松;用導(dǎo)電膠修復(fù)鍵盤按鍵失靈[N];電子報;2007年
2 一陣風(fēng);破解Duron新方法[N];中國電腦教育報;2004年
3 遼寧 于紀(jì)暄;用導(dǎo)電膠修復(fù)碳膜斷線[N];電子報;2005年
4 殺豬幫隊員乙;讓鎖頻的新毒龍 在華碩A7N8X—LA上飛翔[N];中國計算機報;2004年
5 天津 唐永發(fā);導(dǎo)電膠的幾種配制[N];電子報;2001年
6 河南 張炎杰;用導(dǎo)電膠修復(fù)遙控器失靈按鍵的方法[N];電子報;2013年
相關(guān)博士學(xué)位論文 前7條
1 肖革勝;微壓入法研究各向同性固化導(dǎo)電膠的力學(xué)性能[D];太原理工大學(xué);2015年
2 談發(fā)堂;銀填充導(dǎo)電膠中表面與界面研究[D];華中科技大學(xué);2006年
3 王玲;LED封裝用高性能導(dǎo)電膠的制備及性能研究[D];哈爾濱工業(yè)大學(xué);2014年
4 張軍;各向異性導(dǎo)電膠膜粘接可靠性的研究[D];天津大學(xué);2005年
5 高宏;高性能銀填充環(huán)氧導(dǎo)電膠的制備、結(jié)構(gòu)與性能[D];華南理工大學(xué);2011年
6 蔡雄輝;各向異性導(dǎo)電膠及其在射頻識別標(biāo)簽封裝中的應(yīng)用[D];華中科技大學(xué);2010年
7 趙軍;不同形貌Cu@Ag粉體的制備及其導(dǎo)電膠的研究[D];武漢理工大學(xué);2012年
相關(guān)碩士學(xué)位論文 前10條
1 李富城;納米銀雜化碳納米管改性UV固化聚氨酯—丙烯酸酯柔性導(dǎo)電膠的研究[D];華南理工大學(xué);2015年
2 韓蓮;銀包銅導(dǎo)電膠的制備及性能研究[D];江蘇科技大學(xué);2015年
3 熊娜娜;銀納米結(jié)構(gòu)及其對導(dǎo)電膠電性能影響研究[D];電子科技大學(xué);2015年
4 武建勛;室溫固化導(dǎo)電膠的制備及性能研究[D];內(nèi)蒙古大學(xué);2011年
5 王敏;基于炭黑/硅橡膠復(fù)合壓敏導(dǎo)電膠的制備和性能研究[D];合肥工業(yè)大學(xué);2007年
6 王劉功;高導(dǎo)電性銀粉導(dǎo)電膠的制備及低成本化研究[D];湖南工業(yè)大學(xué);2012年
7 吳大海;電子封裝連接用中溫固化型各向同性導(dǎo)電膠的開發(fā)[D];華中科技大學(xué);2005年
8 林貴福;松香基環(huán)氧固化劑的合成、性能及其在各向同性導(dǎo)電膠中的應(yīng)用[D];中國林業(yè)科學(xué)研究院;2011年
9 韓廣帥;銅粉環(huán)氧樹脂導(dǎo)電膠儲存穩(wěn)定性的研究[D];江蘇科技大學(xué);2010年
10 張博;高性能納米復(fù)合各項同性導(dǎo)電膠的制備與性能研究[D];北京化工大學(xué);2011年
,本文編號:2502122
本文鏈接:http://sikaile.net/kejilunwen/cailiaohuaxuelunwen/2502122.html