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合肥水性環氧地坪涂料助劑相容性的重要性

文章(zhang)來源:admin 添加時間:2019/04/15

合肥水性環氧自流平涂(tu)料(liao)應(ying)選用(yong)(yong)的(de)助劑(ji)有消泡(pao)劑(ji)、分(fen)散(san)劑(ji)、流變(bian)調節劑(ji)、流平劑(ji)等。詳細選擇時應(ying)考慮與水性環(huan)氧體(ti)系的(de)相容(rong)性,避免(mian)泛起(qi)凝膠和涂(tu)膜浮油(you)等缺陷。專(zhuan)家稱(cheng),分(fen)散(san)劑(ji)的(de)作(zuo)用(yong)(yong)是將顏料(liao)、填(tian)料(liao)的(de)二次顆(ke)粒表(biao)面(mian)潤濕(shi),并經(jing)機械剪切的(de)方式(shi)從(cong)二次顆(ke)粒研磨分(fen)散(san)到低級顆(ke)粒表(biao)面(mian)進行吸(xi)附、包(bao)覆,通過負電荷的(de)互相排斥作(zuo)用(yong)(yong)使顏填(tian)料(liao)穩定地懸浮在(zai)涂(tu)料(liao)中,保持(chi)穩定狀態。

分(fen)散劑的另一作用是著色(se)性,各種顏(yan)(yan)料、填料的粒徑、密度均不一樣。要求具有(you)(you)不同色(se)素的顏(yan)(yan)料之間(jian)的內聚力(li)較弱,才有(you)(you)平(ping)均的展色(se)性,而(er)(er)不會引起浮色(se)的發花。一般(ban)應(ying)選(xuan)高(gao)分(fen)子聚合物型,其(qi)適中(zhong)的親水親油(you)平(ping)衡值使之與該雙組分(fen)體系具有(you)(you)較好的相容性,能有(you)(you)效地(di)(di)控制浮色(se)并能很好地(di)(di)使顏(yan)(yan)填料穩定地(di)(di)分(fen)散在(zai)體系中(zhong),從而(er)(er)提高(gao)產(chan)品的貯存穩定性

助(zhu)劑是水性(xing)環氧樹脂涂(tu)料生(sheng)產、貯(zhu)存及(ji)施工(gong)過程中不可(ke)缺少的(de)組(zu)分之一,但(dan)有少數(shu)企業(ye)以為(wei)其(qi)(qi)名“助(zhu)”而忽(hu)視其(qi)(qi)。專家指出,應(ying)充(chong)分利(li)用各種(zhong)助(zhu)劑對(dui)涂(tu)料以及(ji)終極涂(tu)膜性(xing)能的(de)作(zuo)用,有針對(dui)性(xing)地選用各種(zhong)助(zhu)劑。

合肥水性環氧自流平在使用過程中,為了給予水(shui)性(xing)(xing)(xing)(xing)地坪涂(tu)料合適的黏(nian)度,改(gai)善其施(shi)(shi)工性(xing)(xing)(xing)(xing)能(neng)、觸變(bian)性(xing)(xing)(xing)(xing)能(neng),幫助(zhu)顏填料的分(fen)散(san)及成漆系統的穩(wen)定(ding)性(xing)(xing)(xing)(xing),往(wang)往(wang)需要增(zeng)(zeng)稠劑(ji)(ji)。綜合各種類型(xing)增(zeng)(zeng)稠劑(ji)(ji)的特點、性(xing)(xing)(xing)(xing)能(neng),結合生產工藝的實際情(qing)況(kuang),選用有機黏(nian)土類增(zeng)(zeng)稠劑(ji)(ji)來解決水(shui)性(xing)(xing)(xing)(xing)地坪涂(tu)料的增(zeng)(zeng)稠問題,使水(shui)性(xing)(xing)(xing)(xing)地坪涂(tu)料的施(shi)(shi)工性(xing)(xing)(xing)(xing)、穩(wen)定(ding)性(xing)(xing)(xing)(xing)等綜合性(xing)(xing)(xing)(xing)能(neng)得到顯(xian)著的改(gai)善,是(shi)可(ke)行的。消泡(pao)劑(ji)(ji)是(shi)水(shui)性(xing)(xing)(xing)(xing)環氧(yang)地坪涂(tu)料中必需使用的助(zhu)劑(ji)(ji),為了使之在雙組分(fen)混合以后還能(neng)有良好的相容(rong)性(xing)(xing)(xing)(xing),我們選取了水(shui)油兩用的非硅型(xing)消泡(pao)劑(ji)(ji)。

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