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安徽環氧地坪龜裂(開裂)怎么解決?

文章來源:admin 添加時間:2020/10/22

缺(que)陷(xian)狀(zhuang)況:

細裂(lie):涂(tu)(tu)(tu)膜涂(tu)(tu)(tu)裝(zhuang)后(hou)產生肉(rou)眼不易辨(bian)認,但用十倍顯(xian)微鏡可明顯(xian)觀(guan)察(cha)到的細紋。它(ta)(ta)是由涂(tu)(tu)(tu)裝(zhuang)內(nei)部的收縮力超(chao)過涂(tu)(tu)(tu)膜本身內(nei)聚力而引起涂(tu)(tu)(tu)膜表面(mian)的破裂(lie)。它(ta)(ta)無(wu)損于涂(tu)(tu)(tu)膜的美(mei)觀(guan),是涂(tu)(tu)(tu)膜老化的必然(ran)結果。但如(ru)果在涂(tu)(tu)(tu)裝(zhuang)后(hou)不久就出現此(ci)種情(qing)況,那(nei)就是一種病態(tai)。

粗裂:涂(tu)膜(mo)在涂(tu)裝后不久產生明顯(xian)粗裂紋,有時可見(jian)底(di)的現象。

龜裂(lie):涂膜在(zai)涂裝后(hou)出現形狀類似龜背上紋(wen)(wen)路裂(lie)紋(wen)(wen)的現象。鱷魚皮(pi)裂(lie)紋(wen)(wen)和玻璃裂(lie)紋(wen)(wen)也(ye)有(you)此類似現象。

安徽環氧地坪龜裂的原因:

涂(tu)膜(mo)干燥后,硬度(du)過高,而(er)(er)柔韌性(xing)(xing)又較(jiao)差,如用(yong)含有(you)共雙鍵(jian)的(de)脂(zhi)肪酸或(huo)它的(de)酯(zhi)所配(pei)制的(de)涂(tu)料(liao);頭道(dao)漆(qi)沒干透(tou)就涂(tu)二(er)道(dao)漆(qi),兩層(ceng)(ceng)(ceng)(ceng)涂(tu)膜(mo)內外(wai)伸縮(suo)力(li)不(bu)(bu)一致(zhi);涂(tu)層(ceng)(ceng)(ceng)(ceng)配(pei)套不(bu)(bu)適當(dang),例如底漆(qi)層(ceng)(ceng)(ceng)(ceng)比面漆(qi)層(ceng)(ceng)(ceng)(ceng)涂(tu)膜(mo)軟(ruan);面漆(qi)中(zhong)揮發組分(fen)太多(duo)(duo),影響成膜(mo)的(de)結合力(li)而(er)(er)引起(qi)涂(tu)膜(mo)干裂;涂(tu)層(ceng)(ceng)(ceng)(ceng)過厚,表(biao)層(ceng)(ceng)(ceng)(ceng)干而(er)(er)內層(ceng)(ceng)(ceng)(ceng)沒有(you)干透(tou);催干劑(ji)用(yong)量過多(duo)(duo)或(huo)各(ge)種催干劑(ji)搭配(pei)不(bu)(bu)當(dang);涂(tu)膜(mo)在(zai)有(you)污氣(qi)(如二(er)氧化硫、氨氣(qi)等(deng))的(de)環境下(xia)應(ying)用(yong);色漆(qi)在(zai)使用(yong)前未攪(jiao)勻,上層(ceng)(ceng)(ceng)(ceng)樹脂(zhi)多(duo)(duo)顏料(liao)少,而(er)(er)下(xia)層(ceng)(ceng)(ceng)(ceng)顏料(liao)多(duo)(duo)樹脂(zhi)少,涂(tu)裝后容易開裂;涂(tu)層(ceng)(ceng)(ceng)(ceng)耐(nai)候性(xing)(xing)或(huo)耐(nai)溫(wen)變性(xing)(xing)不(bu)(bu)佳

環(huan)氧(yang)地(di)坪龜裂的處理對策(ce):

安徽環氧地坪面(mian)漆(qi)(qi)硬度不(bu)宜(yi)過(guo)高,應(ying)注意涂(tu)(tu)料配(pei)(pei)方(fang)中(zhong)涂(tu)(tu)膜(mo)的柔韌(ren)性(xing)(xing);應(ying)在頭道(dao)漆(qi)(qi)充(chong)分(fen)(fen)干透(tou)后(hou)再涂(tu)(tu)二道(dao)漆(qi)(qi);通過(guo)試驗(yan)解決涂(tu)(tu)層(ceng)的配(pei)(pei)套性(xing)(xing),一般使底漆(qi)(qi)涂(tu)(tu)層(ceng)和(he)(he)面(mian)漆(qi)(qi)涂(tu)(tu)層(ceng)的硬度、伸縮性(xing)(xing)接近(jin);面(mian)漆(qi)(qi)的揮發組(zu)分(fen)(fen)不(bu)宜(yi)過(guo)多;施(shi)(shi)工(gong)中(zhong)每(mei)道(dao)涂(tu)(tu)膜(mo)不(bu)宜(yi)過(guo)厚;應(ying)注意催干劑(ji)的用量和(he)(he)搭(da)配(pei)(pei);應(ying)避免在有污氣的環境(jing)中(zhong)施(shi)(shi)工(gong)和(he)(he)長時間使用;色漆(qi)(qi)應(ying)充(chong)分(fen)(fen)攪拌均勻(yun)后(hou)再施(shi)(shi)工(gong);注意涂(tu)(tu)料的使用環境(jing)溫度;


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