I-HEC yePaint

I-HEC imfushane nge-hydroxyethyl Cellulose. I-Hydroxyethyl celluloseI-HECkuqinile okuphuzi okumhlophe noma okuphaphathekile, okunganambitheki, okungewona ubuthi, okunefibrous noma okuyimpushana okulungiselelwe ukufakwa kwe-alkaline cellulose ne-ethylene oxide (noma i-chloroethanol). I-non-ionic cellulose ether encibilikayo. Njenge-surfactant engeyona i-ionic, ngaphezu kokuqina, ukumiswa, ukubopha, ukuntanta, ukwakheka kwefilimu, ukuhlakazeka, ukugcinwa kwamanzi nokuvikelwa.

Amakhemikhali izici:

I-1, i-HEC ingancibilika emanzini ashisayo noma abandayo, izinga lokushisa eliphezulu noma ukubilisa akunciphisi, ukuze kube nohlu olubanzi lwezakhiwo ze-solubility kanye ne-viscosity, ne-gel engeyona eshisayo;

2, i-non-ionic yayo ingahlala nohlu olubanzi lwama-polymers ancibilikayo emanzini, ama-surfactants, usawoti, i-colloidal thickener enhle kakhulu equkethe ukuhlushwa okuphezulu kwesisombululo se-electrolyte;

3, umthamo wokugcina amanzi uphindwe kabili kune-methyl cellulose, nokuguquguquka okuhle kokugeleza,

4. I-HEC inekhono elibi kakhulu lokuhlakazeka uma liqhathaniswa ne-methyl cellulose eyaziwayo ne-hydroxypropyl methyl cellulose, kodwa ikhono eliqine kakhulu lokuvikela i-colloid.

Ngakho-ke, i-hydroxyethyl cellulose isetshenziswa kakhulu ekuxhashazweni kwe-petroleum, ukumboza, ukwakhiwa, imithi nokudla, izindwangu, ukwenza iphepha kanye ne-polymerization reaction reaction kanye neminye imikhakha.

Izakhiwo eziyinhloko zeI-HECngopende we-latex

1.Impahla eshubile

I-Hydroxyethyl cellulose (HEC) iwugqinsi okahle wezingubo zokugqoka nezimonyo. Ekusetshenzisweni okusebenzayo, inhlanganisela yokuqina kwayo ngokumiswa, ukuphepha, ukuhlakazeka nokugcinwa kwamanzi kuzoveza imiphumela emihle.

1. i-pseudoplastic

I-Pseudoplasticity yindawo lapho i-viscosity yesisombululo iyancipha ngokunyuka kwejubane lokujikeleza. I-HEC equkethe upende we-latex kulula ukuyisebenzisa ngebhulashi noma i-roller futhi ingandisa ukushelela kwendawo, okungase futhi kwandise ukusebenza kahle komsebenzi; Ama-shampoos aqukethe i-hec anoketshezi futhi ayanamathela, ahlanjululwa kalula futhi ahlakazeka kalula.

1. Ukumelana nosawoti

I-HEC izinzile kuzixazululo zikasawoti ezinosawoti ezigxile kakhulu futhi ayiboli ibe yizimo ze-ionic. Isetshenziswa ku-electroplating, ingenza indawo yokucwenga iphelele, ikhanye kakhulu. Okuphawuleka kakhulu ukusetshenziswa kwepende ye-borate, i-silicate ne-carbonate latex, isenayo i-viscosity enhle kakhulu.

4.I-membranous

Izakhiwo zokwakha ulwelwesi lwe-HEC zingasetshenziswa ezimbonini eziningi. Emisebenzini yokwenza iphepha, ehlanganiswe ne-HEC glazing agent, ingavimbela ukungena kwamafutha, futhi ingasetshenziswa ukulungisa ezinye izici zesixazululo sokwenza iphepha; I-HEC yandisa ukunwebeka kwemicu phakathi nenqubo yokuluka futhi ngaleyo ndlela inciphisa ukulimala komshini kubo. I-HEC isebenza njengefilimu yokuvikela yesikhashana ngesikhathi sokulinganisa kanye nokudaywa kwendwangu futhi ingagezwa kude nendwangu ngamanzi lapho ukuvikelwa kwayo kungadingeki.

1. Ukugcinwa kwamanzi

I-HEC isiza ukugcina umswakama wesistimu usesimweni esifanele. Ngoba inani elincane le-HEC kwisisombululo samanzi lingafinyelela umphumela ongcono wokugcina amanzi, ukuze uhlelo lunciphise isidingo samanzi ekulungiseleleni. Ngaphandle kokugcinwa kwamanzi nokunamathela, udaka lukasimende luzonciphisa amandla nokunamathela kwalo, futhi ubumba luzophinde lunciphise ipulasitiki ngaphansi kwengcindezi ethile.

Indlela yokusebenzisa i-hydroxyethyl cellulose I-HECngopende we-latex

1. Engeza ngokuqondile lapho ugaya i-pigment: le ndlela ilula kakhulu, futhi isikhathi esisetshenzisiwe sifushane. Izinyathelo ezinemininingwane zimi kanje:

(1) Faka amanzi ahlanzekile afanelekile kwi-VAT ye-agitator ephezulu yokusika (ngokuvamile, i-ethylene glycol, i-ejenti yokumanzisa kanye ne-ejenti eyenza ifilimu iyengezwa ngalesi sikhathi)

(2) Qala ukunyakazisa ngesivinini esiphansi bese wengeza kancane i-hydroxyethyl cellulose

(3) Qhubeka ugoqa kuze kube yilapho zonke izinhlayiya sezicwile

(4) engeza i-mildew inhibitor, isilawuli se-PH, njll

(5) Govuza kuze kube yilapho yonke i-hydroxyethyl cellulose ichitheka ngokuphelele (i-viscosity yesisombululo yanda kakhulu) ngaphambi kokwengeza ezinye izingxenye kufomula, futhi ugaye kuze kube upende.

2 ifakwe umama liquid ukulinda: le ndlela kuqala ifakwe lokuhlushwa ephakeme kamama liquid, bese wengeza upende latex, inzuzo yale ndlela ukuguquguquka okukhulu, kungenziwa ngqo wanezela upende imikhiqizo eqediwe, kodwa kufanele kube isitoreji esifanele. Izinyathelo nezindlela zifana nezinyathelo (1) - (4) ku-Method 1, ngaphandle kokuthi i-agitator yokusika ephezulu ayidingeki futhi i-agitator ethile kuphela enamandla anele ukugcina imicu ye-hydroxyethyl ihlakazeke ngokulinganayo kwisisombululo kwanele. Qhubeka ugqugquzela kuze kube yilapho incibilika ngokuphelele ibe isixazululo esiwugqinsi. Qaphela ukuthi i-mildew inhibitor kufanele yengezwe etshwaleni likamama ngokushesha okukhulu.

3. Uphuthu olufana nephenology: Njengoba izincibilikisi zemvelo ziyizincibilikisi ezimbi ze-hydroxyethyl cellulose, lezi zinyibilikisi zemvelo zingahlonyiswa ngephalishi. Izinyibilikisi ezisetshenziswa kakhulu eziphilayo ezifana ne-ethylene glycol, i-propylene glycol, nama-ejenti akha ifilimu (njenge-hexadecanol noma i-diethylene glycol butyl acetate), amanzi e-ice nawo ayincibilikisi empofu, ngakho-ke amanzi e-ice avame ukusetshenziswa noketshezi oluphilayo ephalishi.

I-Gruel - njenge-hydroxyethyl cellulose ingafakwa ngokuqondile kupende. I-Hydroxyethyl cellulose igcwaliswe ngendlela yephalishi. Ngemuva kokungeza i-lacquer, chitha ngokushesha futhi ube nomphumela wokuqina. Ngemuva kokungeza, qhubeka ugoqa kuze kube yilapho i-hydroxyethyl cellulose ichitheka ngokuphelele futhi iyunifomu. Iphalishi elivamile lenziwa ngokuxuba izingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa nengxenye eyodwa ye-hydroxyethyl cellulose. Cishe ngemva kwemizuzu engu-5-30, i-hydroxyethyl cellulose i-hydrolyzes futhi ikhuphuke ngokubonakalayo. Ehlobo, umswakama wamanzi uphezulu kakhulu ukuthi ungasetshenziselwa uphuthu.

4.Izindaba ezidinga ukunakwa lapho uhlomisa utshwala bomama be-hydroxyethyl cellulose

Njengoba i-hydroxyethyl cellulose iyimpushana ephathwayo ephathwayo, kulula ukuyiphatha futhi incibilike emanzini ngalezi zindlela zokuphepha ezilandelayo.

Qaphela

4.1 Ngaphambi nangemva kokwengeza i-hydroxyethyl cellulose, kufanele inyakaziswe ngokuqhubekayo kuze kube isixazululo sisobala ngokuphelele futhi sicacile.

4.2. Hlanga kancane kancane i-hydroxyethyl cellulose ethangini lokuxuba. Ungayingezi ethangini lokuxuba ngobuningi noma ngokuqondile kunqwaba noma i-spherical hydroxyethyl cellulose.

4.Izinga lokushisa lamanzi elingu-3 kanye nenani le-pH lamanzi lihlobene ngokusobala nokuqedwa kwe-hydroxyethyl cellulose, ngakho-ke kufanele kuqashelwe ngokukhethekile.

4.4Ungangezi okuthile okuyisisekelo engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder icwiliswe ngamanzi. Ukuphakamisa i-pH ngemva kokucwiliswa kusiza ukuncibilika.

4.5 Ngokusemandleni, ukungezwa kokuqala kwe-mildew inhibitor.

4.6 Uma usebenzisa i-viscosity ephezulu ye-hydroxyethyl cellulose, ukuhlushwa kotshwala kamama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala bomama kunzima ukusebenza.

Izinto ezithinta i-viscosity kapende we-latex

1 Uma amabhamuza omoya asala kupende, i-viscosity iyanda.

2 Ingabe inani le-activator namanzi kufomula kapende liyahambisana?

3 ekuhlanganisweni kwe-latex, okuqukethwe kwe-catalyst oxide eyinsalela yenani.

4. Umthamo wezinye izingqimba zemvelo kufomula kapende kanye nesilinganiso somthamo ngeI-HECi-hydroxyethyl cellulose.)

5 ngesikhathi sokwenza upende, ukuhleleka kwezinyathelo zokwengeza i-thickener kufanelekile.

6 Ngenxa yokuyaluza ngokweqile kanye nomswakama owedlulele ngesikhathi sokuhlakazeka.

7 Ukuguguleka kwe-Microbial ye-thickener.