Ka nts'etsopele le ts'ebeliso ea pente ea latex e thehiloeng metsing, khetho ea "latex pente thickener" e fapane. Phetoho ea taolo ea rheology le viscosity ea lipente tsa latex ho tloha ho litekanyetso tse phahameng, tse mahareng le tse tlase tsa ho kuta. Khetho le ts'ebeliso ea li-thickeners bakeng sa lipente tsa latex le lipente tsa latex lits'ebetsong tse fapaneng tsa emulsion (acrylic e hloekileng, styrene-acrylic, joalo-joalo).
Karolo e ka sehloohong ea li-thickeners ka lipente tsa latex, moo rheology e leng e 'ngoe ea lintlha tsa bohlokoa tse hlahisang ponahalo le ts'ebetso ea lifilimi tsa pente. Hape nahana ka phello ea viscosity holim'a pula ea pigment, brushability, leveling, botlalo ba filimi ea pente, le sag ea filimi ea holim'a metsi nakong ea ho hlatsoa ka holimo. Tsena ke litaba tsa boleng tseo bahlahisi ba atisang ho li ela hloko.
Sebopeho sa ho roala se ama rheology ea pente ea latex, 'me viscosity e ka fetoloa ka ho fetola mahloriso a emulsion le mahloriso a lintho tse ling tse tiileng tse qhalakantsoeng ka pente ea latex. Leha ho le joalo, sebaka sa ho lokisa se lekanyelitsoe 'me litšenyehelo li phahame. Viscosity ea pente ea latex e fetoloa haholo-holo ke li-thickeners. Li-thickeners tse sebelisoang ka tloaelo ke: li-cellulose ether thickeners, li-alkali-swellable polyacrylic acid emulsion thickeners, li-non-ionic associative polyurethane thickeners, joalo-joalo Hydroxyethyl cellulose ether thickener haholo-holo e eketsa viscosity ea ho kuta ea morao-rao ea latex pente, 'me e na le thixotropy e kholo. Boleng ba lihlahisoa bo boholo. Ketane e kholo ea hydrophobic ea cellulose thickener e amahanngoa le limolek'hule tsa metsi tse potolohileng ka bonding ea hydrogen, e leng ho eketsang molumo oa mokelikeli oa polymer ka boeona. Sebaka sa ho tsamaea ka bolokolohi ha likaroloana se fokotsehile. Viscosity ea tsamaiso ea eketseha, 'me mohaho oa marang-rang o amanang le sefapano o thehoa pakeng tsa pigment le likaroloana tsa emulsion. Ho arola li-pigments ho tloha ho tse ling, likaroloana tsa emulsion ha li tloaelehe.
Nako ea poso: Nov-02-2022