導電膠粘劑的性能原理詳細分析

當(dang)前，導(dao)電膠(jiao)粘劑的(de)(de)研討(tao)首要(yao)集中在銀系(xi)(xi)(xi)、銅系(xi)(xi)(xi)、金系(xi)(xi)(xi)和碳系(xi)(xi)(xi)導(dao)電膠(jiao)粘劑上，復(fu)合型導(dao)電膠(jiao)粘劑的(de)(de)研討(tao)也有報導(dao)。

　　1、銀(yin)系導電膠粘劑

　　銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)具有(you)優良的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)、導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)熱性(xing)和化(hua)學穩定性(xing)，它(ta)在(zai)(zai)(zai)空(kong)氣中氧(yang)化(hua)極慢，在(zai)(zai)(zai)膠(jiao)(jiao)(jiao)層中簡直不(bu)被氧(yang)化(hua)，即便被氧(yang)化(hua)，生成的(de)(de)(de)(de)(de)氧(yang)化(hua)物仍有(you)必定的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)。因而，銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)作(zuo)(zuo)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)一種較(jiao)抱負(fu)的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)填(tian)(tian)(tian)(tian)料(liao)一向(xiang)都是(shi)國(guo)內外(wai)(wai)研(yan)討(tao)的(de)(de)(de)(de)(de)要(yao)點。Li等(deng)(deng)用(yong)(yong)(yong)硅(gui)烷(wan)偶(ou)聯劑(ji)(ji)(ji)(ji)(ji)(ji)KH-560對20nm的(de)(de)(de)(de)(de)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)顆(ke)粒進行外(wai)(wai)表(biao)(biao)改(gai)(gai)性(xing)，以環(huan)氧(yang)樹(shu)脂(zhi)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)基體，在(zai)(zai)(zai)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)55%時(shi)(shi)研(yan)制(zhi)(zhi)出電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)2.5×10–3Ω·cm的(de)(de)(de)(de)(de)納(na)(na)(na)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)，與(yu)(yu)未進行外(wai)(wai)表(biao)(biao)改(gai)(gai)性(xing)的(de)(de)(de)(de)(de)納(na)(na)(na)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)相比(bi)(bi)，該(gai)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)率(lv)(lv)進步(bu)了(le)3~5倍;張志浩等(deng)(deng)經過液相復原法(fa)(fa)制(zhi)(zhi)得(de)(de)短棒狀(zhuang)(zhuang)納(na)(na)(na)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)，在(zai)(zai)(zai)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)總填(tian)(tian)(tian)(tian)充(chong)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)60%，納(na)(na)(na)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)與(yu)(yu)微(wei)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)質(zhi)量(liang)比(bi)(bi)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)1:5的(de)(de)(de)(de)(de)情況下，制(zhi)(zhi)備出電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)1.997×10–4Ω·cm，剪(jian)切強度可(ke)達(da)18.9MPa的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)，經過1000h室溫(wen)老化(hua)試驗后(hou)，導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)上升約15%，剪(jian)切強度降低(di)約11.6%，符合工業運用(yong)(yong)(yong)的(de)(de)(de)(de)(de)需求;代凱等(deng)(deng)經過簡略(lve)液相復原法(fa)(fa)取得(de)(de)邊長為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)60~100nm的(de)(de)(de)(de)(de)三角形銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)，并在(zai)(zai)(zai)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)填(tian)(tian)(tian)(tian)充(chong)量(liang)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)60%時(shi)(shi)制(zhi)(zhi)備了(le)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)1.79×10–4Ω·cm，剪(jian)切強度可(ke)達(da)25.1MPa的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji);張中鮮(xian)將雙酚A型環(huan)氧(yang)樹(shu)脂(zhi)、環(huan)氧(yang)活性(xing)稀(xi)釋(shi)劑(ji)(ji)(ji)(ji)(ji)(ji)和固(gu)化(hua)劑(ji)(ji)(ji)(ji)(ji)(ji)四甲基六氫鄰(lin)苯二甲酸酐混(hun)合均勻，參加質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)75%的(de)(de)(de)(de)(de)用(yong)(yong)(yong)戊(wu)二酸處理過的(de)(de)(de)(de)(de)填(tian)(tian)(tian)(tian)充(chong)納(na)(na)(na)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)線(xian)和微(wei)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)片[質(zhi)量(liang)比(bi)(bi)z(納(na)(na)(na)米(mi)(mi)(mi):微(wei)米(mi)(mi)(mi))為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)2:3]，在(zai)(zai)(zai)300℃固(gu)化(hua)后(hou)得(de)(de)到(dao)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)5.8×10–6Ω·cm燒結型導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji);Wu等(deng)(deng)用(yong)(yong)(yong)化(hua)學法(fa)(fa)制(zhi)(zhi)備納(na)(na)(na)米(mi)(mi)(mi)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)，將其(qi)作(zuo)(zuo)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)填(tian)(tian)(tian)(tian)料(liao)研(yan)制(zhi)(zhi)出銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)填(tian)(tian)(tian)(tian)充(chong)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)56%，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)低(di)至1.2×10–4Ω·cm，剪(jian)切強度為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)17.6MPa，歸納(na)(na)(na)功能(neng)(neng)(neng)較(jiao)好的(de)(de)(de)(de)(de)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)。萬超等(deng)(deng)運用(yong)(yong)(yong)偶(ou)聯劑(ji)(ji)(ji)(ji)(ji)(ji)處理過的(de)(de)(de)(de)(de)微(wei)米(mi)(mi)(mi)球狀(zhuang)(zhuang)和片狀(zhuang)(zhuang)混(hun)合銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)制(zhi)(zhi)得(de)(de)了(le)粘(zhan)(zhan)(zhan)接功能(neng)(neng)(neng)好，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)僅為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)6.7×10–5Ω·cm的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)。馬振彥用(yong)(yong)(yong)片狀(zhuang)(zhuang)和粒狀(zhuang)(zhuang)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)在(zai)(zai)(zai)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)總填(tian)(tian)(tian)(tian)充(chong)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)75%時(shi)(shi)制(zhi)(zhi)得(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)2.0×10–4Ω·cm，剪(jian)切強度為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)23MPa的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)，此膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)一起具有(you)杰出的(de)(de)(de)(de)(de)抗沖擊功能(neng)(neng)(neng)和耐(nai)高溫(wen)高濕功能(neng)(neng)(neng)，能(neng)(neng)(neng)運用(yong)(yong)(yong)于LED封裝。柯于鵬的(de)(de)(de)(de)(de)研(yan)討(tao)標明(ming)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)填(tian)(tian)(tian)(tian)充(chong)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)80%時(shi)(shi)，導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)率(lv)(lv)較(jiao)高，為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)5.88×10–3S/cm;當銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)填(tian)(tian)(tian)(tian)充(chong)質(zhi)量(liang)分(fen)(fen)(fen)數(shu)(shu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)70%時(shi)(shi)，剪(jian)切強度較(jiao)好，能(neng)(neng)(neng)到(dao)達(da)9.6MPa。Liu等(deng)(deng)用(yong)(yong)(yong)納(na)(na)(na)米(mi)(mi)(mi)與(yu)(yu)微(wei)米(mi)(mi)(mi)混(hun)合銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)粉(fen)(fen)(fen)(fen)制(zhi)(zhi)得(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)線(xian)性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)率(lv)(lv)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)1.0×10–5Ω·cm。跟著(zhu)資料(liao)制(zhi)(zhi)備技能(neng)(neng)(neng)的(de)(de)(de)(de)(de)不(bu)斷(duan)發展，不(bu)一樣描摹的(de)(de)(de)(de)(de)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)資料(liao)可(ke)獨自用(yong)(yong)(yong)作(zuo)(zuo)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)填(tian)(tian)(tian)(tian)料(liao)，如銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)枝晶、銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)顆(ke)粒、銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)棒、銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)線(xian)、銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)薄片等(deng)(deng)，結果標明(ming)這些(xie)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)納(na)(na)(na)米(mi)(mi)(mi)填(tian)(tian)(tian)(tian)料(liao)對改(gai)(gai)進導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)功能(neng)(neng)(neng)都有(you)比(bi)(bi)照顯著(zhu)的(de)(de)(de)(de)(de)效(xiao)果，尤其(qi)是(shi)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)功能(neng)(neng)(neng)的(de)(de)(de)(de)(de)進步(bu)。表(biao)(biao)2為(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)國(guo)內外(wai)(wai)幾種銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)功能(neng)(neng)(neng)比(bi)(bi)照。雖然銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)是(shi)當前(qian)運用(yong)(yong)(yong)最廣(guang)的(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)膠(jiao)(jiao)(jiao)粘(zhan)(zhan)(zhan)劑(ji)(ji)(ji)(ji)(ji)(ji)，但仍存在(zai)(zai)(zai)銀(yin)(yin)(yin)(yin)(yin)(yin)(yin)遷移(yi)，報(bao)價較(jiao)高級疑(yi)問。