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I-Hydroxyethyl cellulose kwipeyinti ye-emulsion

Indlela yokusetyenziswa kwe-hydroxyethyl cellulose kwipende ye-latex

1. I-Hydroxyethyl cellulose ene-porridge efana ne-phenology: ngenxa yokuba i-hydroxyethyl cellulose ayinyibiliki ngokulula kwi-solvents ye-organic, ezinye i-solvents eziphilayo zingasetyenziselwa ukuxhobisa isidudu.Amanzi omkhenkce nawo asisinyibilikisi esibi, ngoko ke asoloko esetyenziswa kwisidudu esinolwelo oluphilayo.I-hydroxyethyl cellulose yefom ye-congee inokongezwa ngokuthe ngqo kwipeyinti ye-emulsii.I-Hydroxyethyl cellulose iye yahlutha kwifom yesidudu.Xa ifakwe kwipeyinti, iyancipha ngokukhawuleza kwaye iyancipha.Qhubeka uvuselela de i-hydroxyethyl cellulose ichithwe ngokupheleleyo kwaye inyibilike.Isidudu esiqhelekileyo senziwa ngokuxuba iinxalenye ezintandathu ze-organic solvent okanye amanzi omkhenkce kunye nenxalenye enye ye-hydroxyethyl cellulose.Emva kwemizuzu emi-5-30, i-hydroxyethyl cellulose i-hydrolyzes kwaye ibonakale iphakama.(Kucetyiswa ukuba ukufuma kwamanzi ehlotyeni kuphezulu kakhulu ukuba kungasetyenziselwa isidudu.)

2. Yongeza i-hydroxyethyl cellulose ngokuthe ngqo kwi-pigment yokugaya: le ndlela ilula kwaye ixesha lifutshane.Iindlela ezineenkcukacha zezi zilandelayo:

(1) Yongeza amanzi acocekileyo afanelekileyo kwi-VAT ephezulu kufuneka inqunyulwe i-agitator (ngokubanzi, izongezo zokwenza ifilim kunye neearhente zokumanzisa zongezwa ngeli xesha)

(2) Qalisa ukuvuselela ngesantya esiphantsi ngaphandle kokuyeka kwaye kancinane wongeze i-hydroxyethyl cellulose ngokulinganayo

(3) Qhubeka uvuselela de zonke iinqununu zihlakazwe ngokulinganayo kwaye zixutywe

(4) Yongeza i-mildew inhibitor kwaye ulungise ixabiso le-PH

(5) Gxuma de yonke i-cellulose ye-hydroxyethyl ichithwe ngokupheleleyo (i-viscosity yesisombululo iyanda kakhulu), uze ungeze amanye amacandelo kwifomula, kwaye ugaye de ibe yipeyinti.

I-3 i-hydroxyethyl cellulose kunye nolwelo lukamama olulindileyo: le ndlela ixhotyiswe kuqala ngoxininiso oluphezulu lolwelo lukamama, uze udibanise ipeyinti ye-latex, inzuzo yale ndlela iguquguqukayo, inokongeza ngokuthe ngqo ipeyinti imveliso egqityiweyo, kodwa ukugcina okufanelekileyo.Amanyathelo kunye neendlela zifana namanyathelo (1) - (4) kwi-Method 2, ngaphandle kokuba i-agitator yokusika ephezulu ayifuni kwaye kuphela ama-aggers anamandla aneleyo okugcina iifayili ze-hydroxyethyl zihlakazwe ngokulinganayo kwisisombululo zisetyenzisiweyo.Qhubeka uvuselela de inyibilike ngokupheleleyo kwisisombululo esingqindilili.Qaphela ukuba: i-agent ye-antimidew kufuneka yongezwe ngokukhawuleza kutywala be-mama yepeyinti.

4 Imiba efuna ingqwalasela xa kuxhotyiswa utywala lukamama lwe-hydroxyethyl cellulose

Ekubeni i-hydroxyethyl cellulose i-powder granular ephathwayo, kulula ukuyiphatha kunye nokunyibilika emanzini kunye nezi zilumkiso zilandelayo.

(1) Ngaphambi nasemva kokongeza i-hydroxyethyl cellulose, kufuneka iqhubeke ivuselela, de isisombululo sicace ngokupheleleyo kwaye sicace.

(2) Kuyimfuneko ukuhluza i-cellulose ye-hydroxyethyl kwitanki eshukumisayo kancinane.Musa ukuyongeza ngobuninzi okanye ngokuthe ngqo kwi-tank yokuvuselela.

(3) Ukunyibilika kwe-hydroxyethyl cellulose ngokucacileyo kuhambelana nobushushu bamanzi kunye nexabiso le-pH yamanzi, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe kuyo.

(4) Musa ukongeza izinto ezisisiseko kumxube phambi kokuba umgubo we-hydroxyethyl cellulose ufakwe emanzini.Ukunyusa i-pH emva kokumanzisa kunceda ukunyibilika.

(5) Ngokusemandleni, ukongezwa kwangaphambili kwe-mildew inhibitor.

(6) Xa usebenzisa i-viscosity ephezulu ye-hydroxyethyl cellulose, ukuxinwa kotywala komama akufanele kube ngaphezu kwe-2.5-3% (ngobunzima), ngaphandle koko utywala oomama kunzima ukusebenza.

Izinto ezichaphazela i-viscosity yepeyinti ye-latex:

(1) Ngenxa yokuvuselela okugqithisileyo kunye nokufuma okugqithisileyo xa usasazwa.

(2) ubungakanani bezinye izityebi zendalo kwifomula yepeyinti kunye nomlinganiselo wesixa kunye ne-hydroxyethyl cellulose.)

(3) ubungakanani be-activator yomhlaba kunye namanzi kwifomula yepeyinti iyahambelana.

(I-4 kwi-synthesis ye-latex, i-residual catalyst oxide content yenani.

Ukhukuliseko lweMicrobial lwe-thickener.

6 kwinkqubo yokwenza ipeyinti, umyalelo wamanyathelo okongeza i-thickener ifanelekile.

Okukhona amaqamza omoya ashiyekileyo kwipeyinti, kokukhona i-viscosity iphezulu


Ixesha lokuposa: Jun-02-2022