1. Inorganic thickener
Qhov feem ntau siv yog organic bentonite, uas nws lub ntsiab tivthaiv yog montmorillonite. Nws cov qauv qauv tshwj xeeb tuaj yeem ua rau txheej uas muaj zog nrog muaj zog pseudoplastic, thixotrotropy, tshem tawm cov kev ruaj khov thiab lubricity. Lub hauv paus ntsiab lus ntawm thickening yog tias hmoov nqus dej thiab swells kom thicken cov dej hauv theem, yog li nws muaj qee qhov dej cia.
Qhov tsis zoo yog: Cov ntws tsis zoo thiab ntsuas kev ua haujlwm, tsis yooj yim rau disperse thiab ntxiv.
2. Cellulose
Feem ntau siv yog hydroxyethyl cellulose (Tus pa), uas muaj cov kev kawm tuab tuab zoo, kev ncua zoo, Dispersion thiab dej khaws cov khoom siv, feem ntau yog ua kom tuab dej.
Qhov tsis zoo yog: cuam tshuam rau cov dej tsis kam ntawm cov txheej, tsis txaus los tiv thaiv pwm, thiab kev ua haujlwm leveling.
3. Acrylic
Acrylic thickeners feem ntau muab faib ua ob hom: acrylic alkali-o o thickeners (ase) thiab koom nrog cov thickeners alkali (was).
Cov ntsiab lus tuab ntawm Acrylic Acid Alkali-Oleable Thickener (ASE) Lub viscosity ntawm lub aqueous theem. Hom tuab no tseem muaj siab dua efficiency, muaj zog pseudoplastic thiab kev ncua zoo.
Cov Koom Haum Kev Koom Tes Alkali-o o o o! Ib yam li ntawd, thaum lub pH raug kho kom haum rau Alkaline, tib-kev sib deev Electrostatic nruab nrab ntawm tus kab mob my coos mus rau ib tug kab sib tw ntawm cov theem dej ntawm cov dej hauv theem; Thiab cov pab pawg hydrophobic qhia nyob rau ntawm txoj saw hlau tseem tab tom txuam nrog cov kua yas kom nce cov theem emulsion.
Qhov tsis zoo yog: nkag siab pH, tsis txaus txaus ntws thiab theem kev pleev xim pleev xim, yooj yim kom tuab tom qab.
4. Polyurethane
Polyurethane txuam nrog thickener (Heur) yog hydrophobically hloov ethoxylated polyurethane dej polyurethane, uas belongs rau cov neeg tsis-ionic sib koom tes. Nws muaj peb ntu: Hydrophobic puag, hydrophilic saw thiab polyurethane puag. Lub hauv paus polyurethane nthuav dav nyob rau hauv cov xim kua, thiab hydrophilic saw yog ruaj khov nyob rau theem dej. Lub hauv paus hydrothobic power koom nrog hydrophobic cov qauv xws li looj cov nplais, surfactants, thiab pigments. , sib sau ib tug qauv sib tw ua si, yog li kom ua tiav lub hom phiaj ntawm thickening.
Nws yog tus cwj pwm los ntawm cov thickening ntawm cov theem emulsion, kev ua tau zoo tshaj plaws thiab ua kom ruaj khov ua haujlwm, zoo ruaj khov viscosity cia, thiab tsis txwv p volcosity; Thiab nws tau pom tseeb zoo hauv dej tsis kam, ci, pob tshab, thiab lwm yam.
Qhov tsis zoo yog: Hauv nruab nrab thiab qis viscosity system, kev tawm tsam kev cuam tshuam rau cov hmoov tsis zoo, thiab cov nyhuv tuab yog cuam tshuam yooj yim los ntawm cov dispersants thiab cov kuab tshuaj.
Lub Sijhawm Post: Dec-29-2022