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含氟表面活性劑這一新產品前景廣闊

2016-08-28 00:00:00
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陽離子型含氟表面活性劑 陽離子(zi)(zi)(zi)(zi)含(han)(han)(han)氟(fu)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)主要分(fen)為(wei)胺(an)鹽型(xing)(xing)和季銨(an)(an)(an)鹽型(xing)(xing)兩(liang)大類,其(qi)中(zhong)(zhong)(zhong)(zhong)季銨(an)(an)(an)鹽型(xing)(xing)用(yong)途最廣(guang),因(yin)(yin)其(qi)不(bu)(bu)受 pH 影響, 均(jun)可在(zai)酸、 堿(jian)介(jie)質(zhi)中(zhong)(zhong)(zhong)(zhong)使用(yong)。 陽離子(zi)(zi)(zi)(zi)含(han)(han)(han)氟(fu)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)的主要缺(que)點是對(dui)某些陰(yin)離子(zi)(zi)(zi)(zi)敏感,因(yin)(yin)而不(bu)(bu)宜與帶(dai)負(fu)電(dian)的離子(zi)(zi)(zi)(zi)如陰(yin)離子(zi)(zi)(zi)(zi)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)或(huo)(huo)陰(yin)離子(zi)(zi)(zi)(zi)顏料混合使用(yong)。 從結(jie)(jie)構上看,陽離子(zi)(zi)(zi)(zi)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)中(zhong)(zhong)(zhong)(zhong)的親(qin)水基(ji)(ji)(ji)(ji)團既(ji)(ji)可以(yi)(yi)是季銨(an)(an)(an)離子(zi)(zi)(zi)(zi)或(huo)(huo)吡啶陽離子(zi)(zi)(zi)(zi),也可以(yi)(yi)是胺(an)基(ji)(ji)(ji)(ji)。憎水基(ji)(ji)(ji)(ji)部分(fen)除含(han)(han)(han)氟(fu)烴基(ji)(ji)(ji)(ji)結(jie)(jie)構外,往往還含(han)(han)(han)有烴基(ji)(ji)(ji)(ji)、酰(xian)胺(an)基(ji)(ji)(ji)(ji)和磺酰(xian)基(ji)(ji)(ji)(ji)等基(ji)(ji)(ji)(ji)團,其(qi)中(zhong)(zhong)(zhong)(zhong)氟(fu)烴基(ji)(ji)(ji)(ji)大部分(fen)是有 6 個 ~ 10個碳(tan)原子(zi)(zi)(zi)(zi)的直鏈(lian)烴基(ji)(ji)(ji)(ji)結(jie)(jie)構。 1.3兩(liang)性(xing)(xing)(xing)(xing)(xing)(xing)含(han)(han)(han)氟(fu)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji) 與兩(liang)性(xing)(xing)(xing)(xing)(xing)(xing)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)相(xiang)似(si),兩(liang)性(xing)(xing)(xing)(xing)(xing)(xing)含(han)(han)(han)氟(fu)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)親(qin)水基(ji)(ji)(ji)(ji)部分(fen)同(tong)時含(han)(han)(han)有堿(jian)性(xing)(xing)(xing)(xing)(xing)(xing)陽離子(zi)(zi)(zi)(zi)和酸性(xing)(xing)(xing)(xing)(xing)(xing)陰(yin)離子(zi)(zi)(zi)(zi)。陽離子(zi)(zi)(zi)(zi)可以(yi)(yi)是胺(an)基(ji)(ji)(ji)(ji)陽離子(zi)(zi)(zi)(zi),也可以(yi)(yi)是季銨(an)(an)(an)、吡啶陽離子(zi)(zi)(zi)(zi),陰(yin)離子(zi)(zi)(zi)(zi)多是羧酸基(ji)(ji)(ji)(ji)、磺酸基(ji)(ji)(ji)(ji)或(huo)(huo)硫酸酯基(ji)(ji)(ji)(ji)。兩(liang)性(xing)(xing)(xing)(xing)(xing)(xing)含(han)(han)(han)氟(fu)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)易溶于水,在(zai)較濃的酸、堿(jian)及(ji)無機鹽溶液(ye)中(zhong)(zhong)(zhong)(zhong)也能溶解,不(bu)(bu)與Ca2+、Mg2+及(ji)其(qi)他重金(jin)屬離子(zi)(zi)(zi)(zi)作(zuo)用(yong),它與其(qi)他類型(xing)(xing)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)相(xiang)容性(xing)(xing)(xing)(xing)(xing)(xing)好(hao),而且它既(ji)(ji)可以(yi)(yi)被帶(dai)正(zheng)電(dian)荷的表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)吸附(fu),又(you)可被帶(dai)負(fu)電(dian)荷的表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)吸附(fu)。因(yin)(yin)此兩(liang)性(xing)(xing)(xing)(xing)(xing)(xing)含(han)(han)(han)氟(fu)表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)活(huo)(huo)(huo)(huo)(huo)性(xing)(xing)(xing)(xing)(xing)(xing)劑(ji)(ji)(ji)(ji)的應用(yong)非常廣(guang)泛,可以(yi)(yi)做高(gao)效(xiao)泡沫滅火劑(ji)(ji)(ji)(ji)中(zhong)(zhong)(zhong)(zhong)的泡沫穩定劑(ji)(ji)(ji)(ji),用(yong)在(zai)碳(tan)氫化合物的固體或(huo)(huo)液(ye)體表(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)作(zuo)潤濕劑(ji)(ji)(ji)(ji)、分(fen)散劑(ji)(ji)(ji)(ji),還可作(zuo)為(wei)含(han)(han)(han)氟(fu)烯烴乳(ru)(ru)液(ye)聚(ju)合的乳(ru)(ru)化劑(ji)(ji)(ji)(ji)等。

兩性表面活性劑中的陽離子(zi)(zi)基(ji)(ji)團以季銨(an)陽離子(zi)(zi)較多(duo),而分子(zi)(zi)中的陰離子(zi)(zi)可以是(shi)一個或(huo)多(duo)個羧基(ji)(ji)、磺酸基(ji)(ji)以及硫酸酯(zhi)基(ji)(ji)等。


表面活性劑價格


在含(han)氟(fu)(fu)(fu)材料(liao)(liao)合成中的(de)應用(yong)(yong) 有機氟(fu)(fu)(fu)高(gao)分子材料(liao)(liao)是(shi)(shi)(shi)高(gao)新技術(shu)領(ling)域中用(yong)(yong)途(tu)最(zui)廣、最(zui)重(zhong)要的(de)高(gao)性(xing)能材料(liao)(liao)之(zhi)一。美國、日本等發達國家已(yi)開發了(le)(le)(le)氟(fu)(fu)(fu)橡膠、氟(fu)(fu)(fu)塑(su)料(liao)(liao)、氟(fu)(fu)(fu)涂料(liao)(liao)和(he)各種含(han)氟(fu)(fu)(fu)功能材料(liao)(liao)。氟(fu)(fu)(fu)材料(liao)(liao)的(de)絕大多(duo)數品種是(shi)(shi)(shi)由氟(fu)(fu)(fu)烯(xi)(xi)烴(jing)乳(ru)液(ye)聚合而合成的(de),所用(yong)(yong)乳(ru)化劑就是(shi)(shi)(shi)全(quan)氟(fu)(fu)(fu)辛酸銨(an)。全(quan)氟(fu)(fu)(fu)辛酸銨(an)價格昂(ang)貴(約(yue)150萬元(yuan)/t),杜邦的(de)特富龍(long)不沾鍋涂料(liao)(liao)風波(bo)的(de)焦點是(shi)(shi)(shi)懷疑其(qi)有致癌作用(yong)(yong)。最(zui)近(jin)美國環保局已(yi)確認(ren)其(qi)不易降解,在人體(ti)(ti)內易積累(lei),并(bing)與杜邦等8家氟(fu)(fu)(fu)化工企(qi)業達成協議,到2015年完全(quan)停止生產。為(wei)了(le)(le)(le)解決氟(fu)(fu)(fu)化界出現的(de)這一難題,張書香課題組合成了(le)(le)(le)一系(xi)(xi)列具有端三氟(fu)(fu)(fu)甲基的(de)部(bu)分氟(fu)(fu)(fu)代碳氫表面活性(xing)物質,正在進(jin)行性(xing)能測試,并(bing)準備以此為(wei)乳(ru)化體(ti)(ti)系(xi)(xi),進(jin)行氟(fu)(fu)(fu)烯(xi)(xi)烴(jing)單體(ti)(ti)(如,四氟(fu)(fu)(fu)乙烯(xi)(xi))的(de)乳(ru)液(ye)聚合的(de)研究。

    含氟(fu)表(biao)(biao)(biao)面(mian)活性劑作為工業化產品(pin)的(de)歷史并不(bu)長,它(ta)的(de)應用(yong)領域還有待(dai)進(jin)一步(bu)開(kai)(kai)拓,隨著對它(ta)的(de)性能(neng)與應用(yong)的(de)逐步(bu)研(yan)究(jiu)、認(ren)識,相信(xin)此類產品(pin)的(de)品(pin)種(zhong)與產量必將會(hui)不(bu)斷(duan)擴大。我國(guo)對于含氟(fu)表(biao)(biao)(biao)面(mian)活性劑的(de)開(kai)(kai)發、性能(neng)研(yan)究(jiu)及應用(yong)領域與國(guo)外相比尚有較(jiao)大差距,隨著我國(guo)國(guo)民經濟(ji)的(de)發展及綜(zong)合(he)國(guo)力的(de)不(bu)斷(duan)增強,含氟(fu)表(biao)(biao)(biao)面(mian)活性劑這一新(xin)(xin)產品(pin),新(xin)(xin)技術的(de)開(kai)(kai)發應用(yong),必將會(hui)呈現出廣闊(kuo)前景。


    資(zi)訊來源(yuan)于  表面活性(xing)劑(ji)供(gong)應商  揚州(zhou)晨化(hua)新材料股(gu)份有限公司  

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