I-HEC yePaint

I-HEC imfutshane kwi-hydroxyethyl Cellulose. Iselulosi yeHydroxyethylI-HECimhlophe okanye tyheli eluthuthu, ayinancasa, ayinatyhefu, ifayibha okanye ingumgubo eqinileyo elungiselelwe yi-etherification yealkaline cellulose kunye ne-ethylene oxide (okanye i-chloroethanol). Yi-ether ye-cellulose enyibilikayo engekho-ionic. Njenge-surfactant engeyiyo ionic, ngaphezu kokuqina, ukumiswa, ukudibanisa, ukudada, ukudada, ukwenza ifilimu, ukusabalalisa, ukugcinwa kwamanzi kunye nokukhusela.

Ikhemikhali Iimbonakalo:

I-1, i-HEC inokuchithwa emanzini atshisayo okanye abandayo, ukushisa okuphezulu okanye ukubilisa akunqandeki, ukwenzela ukuba ibe noluhlu olubanzi lwe-solubility kunye neempawu ze-viscosity, kunye ne-gel engekho-thermal;

I-2, i-non-ionic yayo inokuhlalisana kunye noluhlu olubanzi lwezinye iipolymers ezinyibilikayo zamanzi, i-surfactants, i-salts, i-colloidal thickener egqwesileyo equlethe i-concentration ephezulu yesisombululo se-electrolyte;

3, umthamo wokugcina amanzi uphindwe kabini kune-methyl cellulose, kunye nokulungelelaniswa kokuhamba kakuhle,

4. I-HEC inesakhono esibi kakhulu sokusasazeka xa kuthelekiswa ne-methyl cellulose eyaziwayo kunye ne-hydroxypropyl methyl cellulose, kodwa amandla okukhusela i-colloid.

Ke ngoko, i-hydroxyethyl cellulose isetyenziswa kakhulu ekuxhatshazweni kwepetroleum, ukwambathisa, ukwakhiwa, amayeza kunye nokutya, i-textile, ukwenza iphepha kunye ne-polymerization reaction reaction kunye nezinye iindawo.

Iipropati eziphambili zeI-HECyepeyinti yelatex

1.Ipropathi etyebisayo

I-Hydroxyethyl cellulose (HEC) yeyona nto ifanelekileyo yokutyebisa kwizinto zokwaleka kunye nezithambiso. Kwisicelo esisebenzayo, ukudibanisa ukuqina kwayo kunye nokumiswa, ukhuseleko, ukusasazeka kunye nokugcinwa kwamanzi kuya kuvelisa iziphumo ezifanelekileyo.

1. i-pseudoplastic

I-Pseudoplasticity yipropati yokuba i-viscosity yesisombululo iyancipha ngokunyuka kwesantya sokujikeleza. I-HEC equkethe ipeyinti ye-latex kulula ukuyisebenzisa ngebrashi okanye i-roller kwaye inokunyusa ukuguquguquka kwendawo, enokuthi ikhulise ukusebenza kakuhle; Iishampu ezine-hec zilulwelo kwaye zincangathi, zixutywa lula kwaye zisasazeke ngokulula.

1. Ukumelana netyuwa

I-HEC izinzile kwiisombululo ze-saline ezigxininiswe kakhulu kwaye ayiboli ibe yi-ionic states. Isetyenziswa kwi-electroplating, inokwenza ukuba umphezulu we-plating uphelele ngakumbi, uqaqambe ngakumbi. Okuphawuleka ngakumbi kukusetyenziswa kwepeyinti ye-borate, silicate kunye ne-carbonate latex, isenayo i-viscosity entle kakhulu.

4.I-membranous

Iimpawu zokubunjwa kwe-membrane ze-HEC zingasetyenziswa kumashishini amaninzi. Kwimisebenzi yephepha, ehlanganiswe ne-HEC glazing agent, inokuthintela ukungena kwegrisi, kwaye ingasetyenziselwa ukulungiselela ezinye iinkalo zesisombululo sephepha; I-HEC yonyusa ukuqina kwemicu ngexesha lokuluka kwaye ngaloo ndlela inciphisa umonakalo womatshini kubo. I-HEC isebenza njengefilimu yokukhusela yesikhashana ngexesha lokulinganisa kunye nokudaya kwendwangu kwaye inokuhlanjululwa kwindwangu ngamanzi xa ukukhuselwa kwayo kungafuneki.

1. Ukugcinwa kwamanzi

I-HEC inceda ukugcina ukufuma kwenkqubo kwindawo efanelekileyo. Ngenxa yokuba inani elincinci le-HEC kwisisombululo samanzi sinokufikelela kwisiphumo esingcono sokugcinwa kwamanzi, ukwenzela ukuba inkqubo iyancipha imfuno yamanzi ekulungiseleleni. Ngaphandle kokugcinwa kwamanzi kunye nokubambelela, udaka lwesamente luya kunciphisa amandla kunye nokunamathela, kunye nodongwe luya kunciphisa iplastiki phantsi koxinzelelo oluthile.

Indlela yokusetyenziswa kwe-hydroxyethyl cellulose I-HECkwipeyinti yelatex

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 unina elindile: le ndlela kuqala ixhotyiswe ngoxinaniso eliphezulu lolwelo unina, uze wongeze ipeyinti latex, inzuzo yale ndlela bhetyebhetye mkhulu, ungongeza ngokuthe ngqo ukupeyinta iimveliso ezigqityiweyo, kodwa kufuneka ugcino olufanelekileyo. 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, i-hydroxyethyl cellulose i-hydrolyzes kwaye ibonakale iphakama. Ehlotyeni, ukufuma kwamanzi kuphezulu kakhulu ukuba kungasetyenziselwa isidudu.

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.

Qaphela

4.1 Ngaphambi nangemva kokongeza i-hydroxyethyl cellulose, kufuneka iqhutywe ngokuqhubekayo de isisombululo sibonakale ngokucacileyo kwaye sicace.

4.2. Hluza i-hydroxyethyl cellulose kwitanki yokuxuba kancinane. Musa ukuyongeza kwitanki yokuxuba ngobuninzi okanye ngokuthe ngqo kwi-bulk okanye i-spherical hydroxyethyl cellulose.

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

4.4Musa ukongeza into esisiseko kumxube phambi kokuba umgubo we-hydroxyethyl cellulose ufakwe emanzini. Ukunyusa i-pH emva kokumanzisa kunceda ukunyibilika.

4.5 Kangangoko kunokwenzeka, ukongezwa kwangaphambili kwe-mildew inhibitor.

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

2 Ngaba ubungakanani be-activator kunye namanzi kwifomula yepeyinti iyahambelana?

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

4. Umthamo wezinye i-thickeners zendalo kwifomula yepeyinti kunye nomlinganiselo wedosi kunyeI-HECihydroxyethyl cellulose.)

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

6 Ngenxa yokuphazamiseka okugqithisileyo kunye nokufuma okugqithisileyo ngexesha lokusasazwa.

7 Ukhukuliseko lweMicrobial lwe-thickener.