I-Hydroxyethyl cellulose (HEC) yintsika emhlophe okanye ekhaphukhaphu etyheli, engenavumba, engeyotyhefu okanye eqinileyo eyimpuphu elungiswe yi-etherification ye-alkaline cellulose kunye ne-ethylene oxide (okanye i-chlorohydrin).I-Nonionic e-soluble cellulose ethers.Ngenxa yokuba i-HEC ineempawu ezintle zokuqina, ukumisa, ukusabalalisa, i-emulsifying, i-bonding, ifilimu-ifom, ukukhusela umswakama kunye nokubonelela nge-colloids ekhuselayo, isetyenziswe ngokubanzi ekuhloliseni ioli, iingubo, ukwakhiwa, amayeza kunye nokutya, iingubo, i-papermaking kunye neepolymers.Polymerization kunye nezinye iinkalo.I-Hydroxyethyl cellulose ayizinzanga kubushushu obuqhelekileyo kunye noxinzelelo, inqanda ukufuma, ubushushu, kunye nobushushu obuphezulu, kwaye inonyibiliko olulungileyo lwetyuwa kwi-dielectrics.Isisombululo saso samanzi sivunyelwe ukuba siqulethe iindawo eziphezulu zeetyuwa kwaye zizinzile.
Imiyalelo
Joyina ngokuthe ngqo kwimveliso
1. Yongeza amanzi acocekileyo kwibhakethi enkulu exhotywe nge-blender ephezulu yokucheba.
2. Qala ukuvuselela ngokuqhubekayo ngesantya esiphantsi kwaye ucofe i-hydroxyethyl cellulose kwisisombululo ngokulinganayo.
3. Qhubeka uvuselela de onke amasuntswana afakwe emanzini.
4. Emva koko yongeza i-antifungal agents, izongezo ze-alkaline ezifana ne-pigments, i-dispersing aids, amanzi e-ammonia.
5. Gxuma de kube yonke i-cellulose ye-hydroxyethyl ichithwe ngokupheleleyo (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokuba ungeze ezinye izinto kwifomula, kwaye ugaye de kube yimveliso egqityiweyo.
Ixhotyiswe ngotywala bemama
Le ndlela kukuqala ukulungiselela utywala oomama kunye noxinzelelo oluphezulu, kwaye ungeze kwipeyinti ye-latex.Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti egqityiweyo, kodwa kufuneka igcinwe ngokufanelekileyo.Amanyathelo afana namanyathelo 1-4 kwindlela yoku-1, ngaphandle kokuba ukuvuselela okuphezulu akufuneki ukuchithwa ngokupheleleyo kwisisombululo se-viscous.
Lumka
Ekubeni i-cellulose ephathwayo ye-hydroxyethyl i-powder okanye i-cellulose eqinile, kulula ukuyiphatha kunye nokunyibilika emanzini ukuba nje le miba ilandelayo iphawulwe.
1. Ngaphambi nangemva kokongeza i-hydroxyethyl cellulose, kufuneka iqhutywe ngokuqhubekayo de isisombululo sibonakale ngokucacileyo kwaye sicace.
2. Kufuneka ihluzwe kwi-barrel yokuxuba ngokucothayo.Musa ukongeza ngokuthe ngqo i-cellulose ye-hydroxyethyl eyenziwe yaba ngamaqhuma okanye iibhola kwi-barrel yokuxuba ngobuninzi okanye ngokuthe ngqo.
3. Ubushushu bamanzi kunye nexabiso le-pH lamanzi linobudlelwane obubalulekileyo kunye nokuchithwa kwe-hydroxyethyl cellulose, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe kuyo.
4. Ungaze wongeze izinto zealkaline kumxube phambi kokuba umgubo we-hydroxyethyl cellulose ufudunyezwe ngamanzi.Ukuphakamisa ixabiso le-PH emva kokufudumala kunceda ukutshatyalaliswa.
5. Kangangoko kunokwenzeka, yongeza i-agent ye-antifungal ngokukhawuleza.
6. Xa usebenzisa i-high-viscosity hydroxyethyl cellulose, ukuxinwa kotywala komama akufanele kube ngaphezu kwe-2.5-3%, ngaphandle koko utywala omama kunzima ukusebenza.I-cellulose ye-hydroxyethyl emva kokunyangwa ayilulanga ngokubanzi ukwenza amaqhuma okanye i-spheres, kwaye ayiyi kubumba i-colloids spherical enganyibilikiyo emva kokufaka amanzi.
Ixesha lokuposa: Nov-11-2022