Tare da haɓaka da amfani da fenti mai tushen ruwa, zaɓin mai kauri fenti mai latex yana da bambance-bambance. Daidaita rheology da sarrafa danko na fenti mai latex daga manyan, matsakaici da ƙarancin yankewa. Zaɓi da amfani da mai kauri don fenti mai latex da fenti mai latex a cikin tsarin emulsion daban-daban (acrylic tsantsa, styrene-acrylic, da sauransu).
Babban aikin masu kauri a cikin fenti na latex, wanda rheology yana ɗaya daga cikin mahimman abubuwan da ke haifar da bayyanar da aikin fina-finan fenti. Haka kuma la'akari da tasirin danko akan ruwan da ke fitowa daga launin, sauƙin gogewa, daidaita shi, cikar fim ɗin fenti, da kuma rugujewar fim ɗin saman yayin gogewa a tsaye. Waɗannan su ne matsalolin inganci da masana'antun ke la'akari da su akai-akai.
Tsarin rufin yana shafar rheology na fenti na latex, kuma ana iya daidaita danko ta hanyar canza yawan emulsion da yawan sauran abubuwa masu ƙarfi da aka watsa a cikin fenti na latex. Duk da haka, kewayon daidaitawa yana da iyaka kuma farashin yana da yawa. Danko na fenti na latex galibi ana daidaita shi ta hanyar masu kauri. Masu kauri da aka fi amfani da su sune: masu kauri na cellulose ether, masu kauri na polyacrylic acid mai narkewar alkali, masu kauri na polyurethane marasa ionic, da sauransu. Mai kauri na Hydroxyethyl cellulose ether galibi yana ƙara danko matsakaici da ƙarancin yanke fenti na latex, kuma yana da babban thixotropy. Darajar yawan amfanin ƙasa tana da girma. Babban sarkar hydrophobic na mai kauri na cellulose yana da alaƙa da ƙwayoyin ruwa da ke kewaye ta hanyar haɗin hydrogen, wanda ke ƙara yawan ruwa na polymer ɗin da kansa. An rage sararin motsi kyauta na barbashi. Danko na tsarin yana ƙaruwa, kuma an samar da tsarin hanyar sadarwa mai alaƙa tsakanin launin da barbashi na emulsion. Don raba launukan daga juna, barbashi na emulsion ba kasafai suke sha ba.
Lokacin Saƙo: Nuwamba-02-2022