1. Inorganic thickener
Okuvame ukusetshenziswa kakhulu yi-organic bentonite, ingxenye yayo eyinhloko i-montmorillonite.Isakhiwo saso esikhethekile se-lamellar singanikeza ukumbozwa nge-pseudoplasticity eqinile, i-thixotropy, ukuzinza kokumiswa kanye nokuthambisa.Isimiso sokuqina ukuthi i-powder ithatha amanzi futhi ikhukhumale ukuze ikhulise isigaba samanzi, ngakho inokugcinwa kwamanzi okuthile.
Okubi yilezi: ukugeleza okungekuhle nokusebenza kwezinga, akulula ukukuhlakaza nokungeza.
2. I-Cellulose
Okuvame ukusetshenziswa kakhulu yi-hydroxyethyl cellulose (I-HEC), enekhono eliphezulu lokuqina, ukumiswa okuhle, ukuhlakazeka kanye nezindawo zokugcina amanzi, ikakhulukazi ukuqinisa isigaba samanzi.
Okubi yilezi: ukuthikameza ukumelana namanzi kwe-coating, ukusebenza okwanele kokulwa nesikhunta, kanye nokusebenza kabi kwezinga.
3. I-Acrylic
Ama-thickeners e-Acrylic ngokuvamile ahlukaniswe abe izinhlobo ezimbili: i-acrylic alkali-swellable thickeners (ASE) kanye ne-associative alkali-swellable thickeners (HASE).
Umgomo wokujiya we-acrylic acid alkali-swellable thickener (ASE) ukuhlukanisa i-carboxylate lapho i-pH ilungiswa ibe yi-alkaline, ukuze iketango lamangqamuzana linwetshwe lisuka ku-helical liye entweni ngokusebenzisa i-isotropic electrostatic repulsion phakathi kwama-ion e-carboxylate, kuthuthukiswe I-viscosity yesigaba se-aqueous.Lolu hlobo lwe-thickener lubuye lube nokusebenza kahle kokuqina okuphezulu, i-pseudoplasticity eqinile kanye nokumiswa okuhle.
I-associative alkali-swellable thickener (HASE) yethula amaqembu e-hydrophobic ngesisekelo sama-alkali-swellable thickeners ajwayelekile (ASE).Ngokufanayo, lapho i-pH ilungiswa ku-alkaline, ubulili obufanayo be-electrostatic repulsion phakathi kwe-ion ye-carboxylate yenza Iketanga le-molecular lisuka ku-helical shape kuya kusimo senduku, okwandisa i-viscosity yesigaba samanzi;futhi amaqembu e-hydrophobic ethulwe ochungechungeni oluyinhloko angahlotshaniswa nezinhlayiya ze-latex ukwandisa i-viscosity yesigaba se-emulsion.
Okubi yilezi: ukuzwela ku-pH, ukugeleza okunganele kanye nokulingana kwefilimu kapende, kulula ukujiya ngemva kwalokho.
4. I-polyurethane
I-Polyurethane associative thickener (HEUR) i-hydrophobically modified ethoxylated polyurethane water-soluble polymer, okungeye-non-ionic associative thickener.Iqukethe izingxenye ezintathu: isisekelo se-hydrophobic, i-hydrophilic chain kanye nesisekelo se-polyurethane.Isisekelo se-polyurethane siyanda kwisisombululo sepende, futhi iketanga le-hydrophilic lizinzile esigabeni samanzi.Isisekelo se-hydrophobic sihlotshaniswa nezakhiwo ze-hydrophobic njengezinhlayiya ze-latex, ama-surfactants, nama-pigments., ukwakha isakhiwo senethiwekhi esinezinhlangothi ezintathu, ukuze kufezwe injongo yokuqina.
Ibonakala ngokuqina kwesigaba se-emulsion, ukugeleza okuhle kakhulu nokusebenza kokulinganisa, ukusebenza kahle kokuqina nokugcinwa kwe-viscosity ezinzile, futhi akukho mkhawulo we-pH;futhi inezinzuzo ezisobala ekuphikisweni kwamanzi, i-gloss, obala, njll.
Ukungalungi yilezi: ohlelweni lwe-viscosity ephakathi nendawo, umphumela wokulwa nokuhlalisa ku-powder awulungile, futhi umphumela wokuqina uthinteka kalula ngama-dispersants kanye ne-solvents.
Isikhathi sokuthumela: Dec-29-2022