在(zai)電(dian)子(zi)工(gong)業(ye)中(zhong),傳(chuan)統(tong)的(de)鬆(song)香(xiang)型(xing)助(zhu)焊(han)劑(ji)的(de)使(shi)用(yong)效(xiao)果(guo)可(ke)靠(kao)且(qie)穩(wen)定(ding),因(yin)而(er)被(bei)廣(guang)泛(fan)的(de)應(ying)用(yong)。但(dan)這(zhe)類(lei)助(zhu)焊(han)劑(ji)焊(han)後(hou)有(you)大(da)量(liang)鹵(lu)素(su)離(li)子(zi)殘(can)留(liu),腐(fu)蝕(shi)性(xing)較(jiao)強(qiang),一(yi)般(ban)要(yao)用(yong)大(da)量(liang)氟(fu)裏(li)昂(ang)進(jin)行(xing)氣(qi)相(xiang)清(qing)洗(xi),這(zhe)不(bu)僅(jin)成(cheng)本(ben)高(gao),而(er)且(qie)造(zao)成(cheng)臭(chou)氧(yang)層(ceng)的(de)嚴(yan)重(zhong)破(po)壞(huai)。因而急需電子行業研究者開發出低鹵素甚至不含鹵素的助焊劑。目前最新研發了一種無鉛鬆香芯低鹵素免清洗助焊劑,活性劑中使用了鹵代有機酸0.5%-0.8%,此(ci)共(gong)價(jia)鍵(jian)的(de)鹵(lu)代(dai)酸(suan)可(ke)以(yi)防(fang)止(zhi)鹵(lu)素(su)電(dian)離(li),同(tong)時(shi),鹵(lu)原(yuan)子(zi)為(wei)吸(xi)電(dian)子(zi)基(ji)團(tuan),可(ke)使(shi)有(you)機(ji)酸(suan)中(zhong)的(de)羥(qiang)基(ji)更(geng)容(rong)易(yi)發(fa)生(sheng)電(dian)離(li),進(jin)一(yi)步(bu)提(ti)高(gao)了(le)助(zhu)焊(han)劑(ji)的(de)活(huo)性(xing),達(da)到(dao)了(le)低(di)鹵(lu)素(su)、高活性的目的。
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