Tus ua haujlwm ua haujlwm ntawm cov thickener feem ntau suav nrog ob lub tshuab: dej theem thickening thiab phooj ywg thickening.
Dej theem thickening: Cov tshuab hluav taws xob ntawm cov pab pawg hydrophilic hauv cov dej lwg me, yog li nce lub viscosity ntawm lub system. Cov txheej txheem no muaj ntau dua hauv cov dej pleev dej.
Koom nrog cov neeg siv hluav taws xob ua kom huv ntawm cov pawg hydrophobic hauv cov qauv emulsion los ua ib qho cuab yeej thiav, ua rau muaj viscosity ntau ntxiv. Hauv cov txheej txheej hauv dej, cov txheej txheem no yog lub ntsiab tuab tuab.
Ua haujlwm cov ntsiab cai ntawm ntau hom thickeners
Polyurethane txuam Thickener: nws yog tsim los ntawm kev hws polymerization ntawm diisocyanate thiab polyethylene glycol, thiab tom qab ntawd capped nrog ntev-saw dej cawv lossis amine. Nws lipophilic kawg pab pawg txuam rau daim ntawv mikelles, thiab tus qauv network tsim los ntawm lub koom haum ntawm cov kab mob viscosity ntawm lub system.
Acrylic thickenerter: hom tuab no feem ntau ua rau cov qauv network thiab ua kom cov viscosity ntawm cov txheej txheem los ntawm kev sib txuas.