Peyinta ibakala HEC

Ipeyinti yenqanaba le-HEC I-Hydroxyethyl cellulose luhlobo lwepolymer e-non-ionic yamanzi-enyibilikayo, emhlophe okanye etyheli yomgubo, ukuhambahamba ngokulula, ingenavumba kwaye ayinancasa, inokunyibilika kuwo omabini amanzi abandayo nashushu, kwaye isantya sokunyibilika sanda ngamaqondo obushushu, anganyibiliki ngokubanzi ezininzi izinyibilikisi eziphilayo. 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

I-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 ukuya kwengama-30, ibakala lePaint le-HEC li-hydrolyzes kwaye linyuke ngokubonakalayo. Ehlotyeni, ukufuma kwamanzi kuphezulu kakhulu ukuba kungasetyenziselwa isidudu.

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

Pizilumkiso

1 Ngaphambi nangemva kokongeza i-Paint grade HEC, kufuneka iqhutywe ngokuqhubekayo de isisombululo sibonakale ngokucacileyo kwaye sicace.

2. Hluza i-hydroxyethyl cellulose kwitanki yokuxuba kancinane. Musa ukuyongeza kwitanki yokuxuba ngobuninzi okanye ngokuthe ngqo kwi-bulk okanye kwi-spherical Paint grade HEC.

I-3 yobushushu bamanzi kunye nexabiso le-pH yamanzi inobudlelwane obucacileyo bokuchithwa kwePaint grade HEC hydroxyethyl cellulose, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe kuyo.

Musa ukongeza into esisiseko kumxube phambi kokuba iPaint grade HEC 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 yePaint grade HEC, 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.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. Umthamo wezinye izityebi zendalo kwifomula yepeyinti kunye nomlinganiselo wedosi kunye neBanga lePaint 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'FCL umthwalo 12ton kunye pallet

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