Peyinta ibakala HEC

Ibakala lokupeyintaI-HEC i-Hydroxyethyl cellulose luhlobo lwepolymer e-non-ionic yamanzi enyibilikayo, emhlophe okanye etyheli yomgubo, kulula ukuhamba, ayinavumba kwaye ayinancasa, inokunyibilika kuwo omabini amanzi abandayo nashushu, kwaye isantya sokunyibilika sanda ngobushushu, ngokuqhelekileyo ayinyibiliki kwizinto ezininzi eziphilayo. izinyibilikisi. Inozinzo oluhle lwe-PH kunye notshintsho oluncinci lwe-viscosity kuluhlu lwe-ph2-12. I-HEC inokumelana netyuwa ephezulu kunye nobuchule be-hygroscopic, kwaye inokugcinwa kwamanzi okunamandla e-hydrophilic. Isisombululo saso samanzi sinomsebenzi ongaphezulu kunye neemveliso eziphezulu ze-viscosity zine-pseudoplasticity ephezulu. Ingenziwa kwifilimu ecacileyo ye-anhydrous enamandla aphakathi, engangcoliswa lula yioli, engachatshazelwa kukukhanya, isenayo ifilimu ye-HEC enyibilikayo emanzini. Emva kokunyanga kwendawo, i-HEC iyahlakazeka kwaye ayidibanisi emanzini, kodwa iyancibilika ngokukhawuleza. I-PH inokulungiswa kwi-8-10 kwaye ichithe ngokukhawuleza.

Iimpawu eziphambili

Hydroxyethyl cellulose(HEC)kukuba inokunyibilika emanzini abandayo kunye namanzi ashushu, kwaye ayinayo iimpawu zejeli. Inoluhlu olubanzi lokutshintshwa, ukunyibilika kunye ne-viscosity. Inozinzo oluhle lwe-thermal (ngaphantsi kwe-140 ° C) kwaye ayivelisi phantsi kweemeko ze-acidic. imvula. Isisombululo se-hydroxyethyl cellulose (HEC) sinokwenza ifilimu ecacileyo, eneempawu ezingenayo i-ionic ezingasebenzisani kunye ne-ion kwaye zihambelana kakuhle.

Njenge-colloid ekhuselayo, i-Paint grade HEC ingasetyenziselwa i-vinyl acetate emulsion polymerization ukuphucula ukuzinza kwenkqubo ye-polymerization kwi-PH ebanzi. Ukwenziwa kweemveliso ezigqityiweyo ukwenza i-pigment, i-filler kunye nezinye izongezo zihlakazwe ngokulinganayo, zizinzile kwaye zinikeze umphumo wokuqina. Inokusetyenziselwa i-styrene, i-acrylic, i-acrylic kunye nezinye iipholima ezimisiweyo njenge-dispersants, ezisetyenziswe kwipeyinti ye-latex inokuphucula kakhulu ukujiya, ukuphucula ukusebenza komgangatho.

Ukucaciswa kweKhemikhali

Iimveliso Amabanga 

Indlela yokusetyenziswa kwe-hydroxyethyl cellulose HEC emanziniipeyinti

1. Yongeza ngokuthe ngqo xa ugaya i-pigment: le ndlela yindlela elula, kwaye ixesha elisetyenzisiweyo lifutshane. Amanyathelo aneenkcukacha ngolu hlobo lulandelayo:

(1) Yongeza amanzi acocekileyo afanelekileyo kwi-VAT ye-agitator ephezulu yokusika (ngokubanzi, i-ethylene glycol, i-agent yokumanzisa kunye ne-agent eyenza ifilimu yongezwa ngeli xesha)

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

(3) Qhubeka uvuselela de onke amaqhekeza afakwe

(4) yongeza i-mildew inhibitor, i-PH regulator, njl

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

2. ixhotyiswe ngolwelo lukamama elindileyo: le ndlela ixhotyiswe kuqala ngoxinizelelo oluphezulu lolwelo lukamama, uze udibanise ipeyinti yelatex, inzuzo yale ndlela iguquguquka kakhulu, inokongezwa ngokuthe ngqo kwipeyinti yeemveliso ezigqityiweyo, kodwa kufuneka igcinwe ngokufanelekileyo. . Amanyathelo kunye neendlela zifana namanyathelo (1) - (4) kwi-Method 1, ngaphandle kokuba i-agitator yokusika ephezulu ayifuni kwaye kuphela enye i-agitator enegunya elaneleyo lokugcina i-hydroxyethyl fibers ihlakazeke ngokulinganayo kwisisombululo kwanele. Qhubeka uvuselela de inyibilike ngokupheleleyo kwisisombululo esingqindilili. Qaphela ukuba i-mildew inhibitor kufuneka yongezwe kutywala be-mama ngokukhawuleza.

3. Isidudu esifana nephenology: Ekubeni izinyibilikisi ze-organic zizinyibilikisi ezimbi ze-hydroxyethyl cellulose, ezi zinyibilikisi zendalo zinokuxhotyiswa ngesidudu. Ezona zinyibiliki zisetyenziswa ngokuqhelekileyo njenge-ethylene glycol, ipropylene glycol, kunye ne-film forming agents (ezifana ne-hexadecanol okanye i-diethylene glycol butyl acetate), amanzi omkhenkce nawo asisinyibilikisi esibi, ngoko ke amanzi omkhenkce asetyenziswa rhoqo kunye nolwelo oluphilayo kwi-porridge. I-Gruel - njenge-hydroxyethyl cellulose inokongezwa ngokuthe ngqo kwipeyinti. I-Hydroxyethyl cellulose iye yahlutha kwifom yesidudu. Emva kokongeza i-lacquer, chitha ngokukhawuleza kwaye ube nefuthe lokuqina. Emva kokongeza, qhubeka uvuselela de i-hydroxyethyl cellulose ichithwe ngokupheleleyo kwaye ifane. Isidudu esiqhelekileyo senziwa ngokuxuba iinxalenye ezintandathu ze-organic solvent okanye amanzi omkhenkce kunye nenxalenye enye ye-hydroxyethyl cellulose. Emva kwemizuzu emi-5-30, ibakala lePaintI-HECi-hydrolyzes kwaye iphakame ngokubonakalayo. Ehlotyeni, ukufuma kwamanzi kuphezulu kakhulu ukuba kungasetyenziselwa isidudu.

4 .Imicimbi efuna ingqwalasela xa kuxhotyiswa utywala kamama be-hydroxyethyl cellulose:

Pizilumkiso

1 Ngaphambi nasemva kokongeza iBanga lePeyintiI-HEC, kufuneka ixutywe ngokuqhubekayo de isisombululo sibonakale ngokucacileyo kwaye sicace.

2. Hluza i-hydroxyethyl cellulose kwitanki yokuxuba kancinane. Musa ukuyongeza kwitanki yokuxuba ngobuninzi okanye ngokuthe ngqo kubuninzi okanye ibakala lePeyinti engqukuva.I-HEC.

I-3 yobushushu bamanzi kunye nexabiso le-pH yamanzi inobudlelwane obucacileyo nokupheliswa kwebakala lePaintI-HECi-hydroxyethyl cellulose, ngoko ke ingqalelo ekhethekileyo kufuneka ihlawulwe kuyo.

Musa ukongeza into esisiseko kumxube phambi kwebakala lePeyintiI-HECi-hydroxyethyl cellulose powder igalelwe ngamanzi. Ukunyusa i-pH emva kokumanzisa kunceda ukunyibilika.

5 .Kangangoko kunokwenzeka, ukongezwa kwangaphambili kwe-mildew inhibitor.

6 Xa usebenzisa i-viscosity ephezulu iBanga lokupeyintaI-HEC, ukuxinwa kotywala komama akufanele kube ngaphezu kwe-2.5-3% (ngobunzima), ngaphandle koko utywala omama kunzima ukusebenza.

Izinto ezichaphazela i-viscosity yepeyinti ye-latex

1.Okukhona amaqamza omoya ashiyekileyo kwipeyinti, kokukhona i-viscosity iphezulu.

2.Ingaba inani le activator kunye namanzi kwifomula yepeyinti iyahambelana?

I-3 kwi-synthesis ye-latex, i-residual catalyst oxide content yexabiso.

4. Idosi yezinye izityebe zendalo kwifomula yepeyinti kunye nomlinganiselo wedosi kunye nebakala lePeyintiI-HEC.)

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

6.Ngenxa yokuphazamiseka okugqithisileyo kunye nokufuma okugqithisileyo ngexesha lokusasazwa.

7.Ukhukuliseko lweMicrobial lwe-thickener.

Ukupakishwa: 

Iingxowa zephepha ezingama-25kg ngaphakathi kunye neengxowa ze-PE.

20'I-FCL ilayisha i-12ton kunye ne-pallet

40'Umthwalo we-FCL we-24ton kunye ne-pallet