I-Hydroxyethyl Cellulose (HEC) Inemisebenzi emininzi, equka: ukujiya, ukunqumamisa, ukubopha, ukwenza imifuziselo, ukwenza ifilim, ukuzinzisa, ukusasaza, ukugcina amanzi, kunye nokwenza iicolloids ezikhuselayo.Inyibilika kakhulu kumanzi ashushu okanye abandayo, inokuqulunqwa kwizisombululo kuluhlu olubanzi lwee-viscosities, kwaye inokumelana okugqwesileyo kwi-electrolytes enyibilikileyo.
indlela yokuqala)
Yongeza ngokuthe ngqo xa usila i-pigment:
1. Yongeza amanzi ahlambulukileyo afanelekileyo kwibhakethi enkulu exhotywe nge-agitator ephezulu (ngokuqhelekileyo, i-ethylene glycol, i-agent emanzi kunye ne-agent-forming agent yongezwa kule nyathelo).
2. Qala ukuvuselela ngokuqhubekayo ngesantya esiphantsi kwaye ucofe i-hydroxyethyl cellulose ngokulinganayo kwisisombululo.
3. Qhubeka uvuselela de onke amasuntswana afakwe emanzini.
4. Emva koko yongeza i-antifungal agent, izongezo ze-alkaline ezifana ne-pigment dispersing aids, amanzi e-ammonia.
5. Gxuma de yonke i-cellulose ye-hydroxyethyl ichithwe ngokupheleleyo (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokuba ungeze ezinye izinto kwifomula, kwaye ugaye de ibe yipeyinti.
Indlela yesibini)
Ixhotyiswe ngotywala benina ukuze busetyenziswe:
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 ukugcinwa okufanelekileyo kuyadingeka.Amanyathelo afana namanyathelo 1-4 kwindlela (1), umahluko kukuba akukho mfuneko ye-agitator ephezulu yokucheba, kwaye kuphela ezinye ii-agitators ezinamandla ngokwaneleyo ukugcina i-cellulose ye-hydroxyethyl ihlakazwe ngokufanayo kwisisombululo ingasetyenziswa. .Qhubeka uvuselela ude unyibilike ngokupheleleyo kwisisombululo se-viscous.Kufuneka kuqatshelwe ukuba i-agent ye-antifungal kufuneka yongezwe kumama otywala ngokukhawuleza.
Indlela (3)
Kwiphenology efana nesidudu:
Kuba izinyibilikisi zendalo zizinyibilikisi ezilambathayo zeselulosi ye-hydroxyethyl, ezi zinyibilikisi zisenokusetyenziswa ukwenza isidudu.Ezona zinyibiliki zisetyenziswa ngokuqhelekileyo zilulwelo lwe-organic ezifana ne-ethylene glycol, ipropylene glycol, kunye nefilmforms (umz., i-hexanediol okanye i-Butyl CARBITOL i-acetate) kwimixube yepeyinti.Amanzi omkhenkce nawo asisinyibilikisi esilambathayo, ngoko ke amanzi omkhenkce asetyenziswa rhoqo kunye nolwelo lwendalo ukulungiselela isidudu.
I-porridge efana ne-hydroxyethyl cellulose inokongezwa ngokuthe ngqo kwipeyinti.I-cellulose ye-hydroxyethyl idumbe ngokwaneleyo kwimeko yesidudu.Xa ifakwe kwipeyinti, iyancibilika ngokukhawuleza kwaye iyancipha.Emva kokongeza, kusekho imfuneko yokuqhubela phambili de i-hydroxyethyl cellulose ichithwe ngokupheleleyo kwaye ifane.
Ngokuqhelekileyo, i-porridge ixutywe kunye neengxenye ezintandathu ze-organic solvent okanye amanzi e-ice kunye nenxalenye enye ye-hydroxyethyl cellulose.Emva kwemizuzu emi-5 ukuya kwengama-30, i-hydroxyethyl cellulose iya kwenziwa i-hydrolyzed kwaye idumbe ngokucacileyo.Ehlotyeni, iqondo lokushisa lamanzi liphezulu kakhulu, kwaye alifanelekanga kwi-porridge.
Imiba efuna ingqwalasela xa ulungiselela utywala be-hydroxyethyl cellulose:
I-Hydroxyethyl cellulose idla ngokuba ngumgubo ocutshungulweyo kunye ne-granular material.Ngethuba nje le mibandela ilandelayo iphawulwe, kulula ukuyiphatha kunye nokunyibilika emanzini.
1. Ngaphambi nangemva kokongeza i-hydroxyethyl cellulose, qhubeka uvuselela de isisombululo sicace ngokupheleleyo 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.
3. Ubushushu bamanzi kunye nexabiso le-pH lamanzi linobudlelwane obucacileyo kunye nokuchithwa kwe-hydroxyethyl cellulose, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe kuyo.
4. Ungaze ugalele izinto zealkaline kumxube phambi kokuba umgubo we-hydroxyethyl cellulose ufakwe emanzini.Ukunyusa i-pH kuphela emva kokumanzisa kuya kunceda ekunyibilikeni.
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% (ngobunzima), ngaphandle koko utywala omama kuya kuba nzima ukuphatha.
Ixesha lokuposa: Nov-15-2022