一、水性涂料是什么
水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)油(you)漆(qi)就是以(yi)(yi)水(shui)(shui)(shui)(shui)稀(xi)釋劑(ji)、不(bu)(bu)含(han)有(you)機溶劑(ji)的(de)涂(tu)(tu)(tu)(tu)料(liao)(liao),凡是用(yong)(yong)水(shui)(shui)(shui)(shui)作(zuo)(zuo)溶劑(ji)或者作(zuo)(zuo)分散介質(zhi)的(de)涂(tu)(tu)(tu)(tu)料(liao)(liao),都可稱為(wei)水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)。水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)包括水(shui)(shui)(shui)(shui)溶性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)、水(shui)(shui)(shui)(shui)稀(xi)釋性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)、水(shui)(shui)(shui)(shui)分散性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)(乳膠涂(tu)(tu)(tu)(tu)料(liao)(liao))3種。水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)有(you)很多優點,比(bi)如(ru)無毒并且無刺激氣味,因為(wei)它(ta)(ta)只以(yi)(yi)清水(shui)(shui)(shui)(shui)作(zuo)(zuo)為(wei)稀(xi)釋劑(ji),對(dui)人(ren)體健康無害,同時也(ye)(ye)不(bu)(bu)污(wu)染環境(jing)。因為(wei)水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)不(bu)(bu)含(han)有(you)害物質(zhi)所以(yi)(yi)不(bu)(bu)會向空氣中揮發(fa),因此(ci)也(ye)(ye)就沒有(you)了易(yi)變(bian)黃等(deng)缺陷,更可以(yi)(yi)以(yi)(yi)保持涂(tu)(tu)(tu)(tu)料(liao)(liao)顏色的(de)歷久彌新。它(ta)(ta)的(de)儲存(cun)也(ye)(ye)很方便,不(bu)(bu)易(yi)燃(ran),所以(yi)(yi)不(bu)(bu)像油(you)性(xing)(xing)(xing)漆(qi)一樣需要單獨儲存(cun)。它(ta)(ta)的(de)粉刷也(ye)(ye)非(fei)常容易(yi),用(yong)(yong)刷子沾取水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)涂(tu)(tu)(tu)(tu)料(liao)(liao)涂(tu)(tu)(tu)(tu)料(liao)(liao)均勻涂(tu)(tu)(tu)(tu)抹在墻壁上的(de)話,不(bu)(bu)會發(fa)生起鼓現象,非(fei)常適用(yong)(yong)家庭個人(ren)使用(yong)(yong)。
二、水性涂料有哪些種類
1、水(shui)溶(rong)性(xing)涂(tu)料(liao):這類(lei)的水(shui)性(xing)涂(tu)料(liao)含有水(shui)容性(xing)樹(shu)脂(zhi)等其(qi)也類(lei)型的樹(shu)脂(zhi)原料(liao),在涂(tu)刷到墻面后(hou)那些樹(shu)脂(zhi)可以形成膜層(ceng)保護墻壁。水(shui)性(xing)漆的出現(xian)被(bei)業(ye)界稱為(wei)“第(di)三(san)次(ci)涂(tu)料(liao)革命”就是(shi)因為(wei)它無敵的環保性(xing)能。
2、水(shui)稀釋性(xing)涂料:主要含(han)有乳(ru)化乳(ru)液,以(yi)(yi)此來溶解樹脂(zhi),在施(shi)工(gong)時就(jiu)直接加水(shui)來稀釋以(yi)(yi)達到(dao)施(shi)工(gong)的(de)效果。
3、水分散性(xing)涂料:主(zhu)(zhu)要的(de)(de)原理是以合成(cheng)的(de)(de)樹脂為主(zhu)(zhu)形成(cheng)乳液(ye),也就是乳膠(jiao)涂料。
三、水性涂料與溶劑型涂料的區別
1、環保性
水(shui)性涂料(liao)(liao)與(yu)溶(rong)(rong)劑型涂料(liao)(liao)相比,一個(ge)溶(rong)(rong)劑是水(shui),一個(ge)溶(rong)(rong)劑是有機物,可(ke)想而(er)知水(shui)性涂料(liao)(liao)的環保性能更佳,可(ke)以達到零甲(jia)醛揮(hui)發,而(er)溶(rong)(rong)劑型涂料(liao)(liao)在施工過(guo)程中會(hui)造成(cheng)有機物揮(hui)發,嚴(yan)重(zhong)危(wei)害環境和(he)人(ren)們的健康。由此(ci)國家大(da)力提倡環保事(shi)業(ye),水(shui)性涂料(liao)(liao)得到了快速的發展。
2、應用性
水性(xing)(xing)(xing)涂(tu)(tu)料施(shi)工(gong)(gong)需要(yao)嚴(yan)格控制施(shi)工(gong)(gong)環境的(de)(de)溫度、濕(shi)度和基(ji)層含水率,比(bi)(bi)如(ru)水性(xing)(xing)(xing)涂(tu)(tu)料施(shi)工(gong)(gong)一般要(yao)求在5℃以上施(shi)工(gong)(gong),溶(rong)劑(ji)型(xing)涂(tu)(tu)料在0℃也可以施(shi)工(gong)(gong);水性(xing)(xing)(xing)涂(tu)(tu)料施(shi)工(gong)(gong)的(de)(de)基(ji)層含水率應小于10%,溶(rong)劑(ji)型(xing)涂(tu)(tu)料施(shi)工(gong)(gong)的(de)(de)基(ji)層含水率應小于8%。在一些條(tiao)件苛刻的(de)(de)環境下,無法獲得優質涂(tu)(tu)膜。而溶(rong)劑(ji)型(xing)涂(tu)(tu)料可以隨(sui)著施(shi)工(gong)(gong)地點(dian)施(shi)工(gong)(gong)環境調整(zheng)溶(rong)劑(ji)的(de)(de)配比(bi)(bi),從(cong)而達到一個理想的(de)(de)涂(tu)(tu)膜狀態,因(yin)為客觀(guan)需求和功能需要(yao)溶(rong)劑(ji)型(xing)涂(tu)(tu)料仍然占有一部(bu)分(fen)市場,所以從(cong)應用性(xing)(xing)(xing)來說(shuo)溶(rong)劑(ji)型(xing)涂(tu)(tu)料還是(shi)比(bi)(bi)較占優勢一些。
3、安全性
水(shui)(shui)性(xing)涂(tu)料(liao)(liao)以水(shui)(shui)做溶劑(ji)(ji),消除了生產過程(cheng)施工(gong)時的(de)火災(zai)危險(xian)性(xing),改(gai)善了作業環境,在安(an)全性(xing)上占據優勢。而溶劑(ji)(ji)型涂(tu)料(liao)(liao)在生產過程(cheng)中由于(yu)其含有有機溶劑(ji)(ji)中的(de)揮發(fa)物質在生產、儲存,以及運輸過程(cheng)中極易造(zao)成爆炸和火災(zai)的(de)發(fa)生。所以從安(an)全性(xing)上來說水(shui)(shui)性(xing)涂(tu)料(liao)(liao)強于(yu)溶劑(ji)(ji)型涂(tu)料(liao)(liao)。
4、物理性能
從涂(tu)膜的物理化學性(xing)(xing)能上講,水性(xing)(xing)涂(tu)料(liao)的某些物理化學性(xing)(xing)能不(bu)及溶(rong)劑型涂(tu)料(liao),如耐化學品(pin)性(xing)(xing)、耐候性(xing)(xing)、耐沾污性(xing)(xing)等(deng)。因此水性(xing)(xing)涂(tu)料(liao)的使用(yong)年限沒有溶(rong)劑型涂(tu)料(liao)長。但(dan)水性(xing)(xing)涂(tu)料(liao)也有一些高檔次產品(pin):如水性(xing)(xing)硅丙涂(tu)料(liao)、氟碳涂(tu)料(liao)等(deng),使用(yong)壽命也可達(da)到10一15年左右。
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