Ibanga likapende HEC

Ibanga likapende i-HEC I-Hydroxyethyl cellulose iwuhlobo lwe-polymer engeyona i-ionic encibilika emanzini, impushana emhlophe noma ephuzi, ukugeleza kalula, engenaphunga futhi ayinambitheki, ingancibilika emanzini abandayo nashisayo, futhi izinga lokuncibilika likhuphuka ngezinga lokushisa, ngokuvamile elingancibiliki ama-solvents amaningi e-organic.Inokuqina okuhle kwe-PH kanye noshintsho oluncane lwe-viscosity ebangeni le-ph2-12.I-HEC inokumelana nosawoti ophezulu kanye nekhono le-hygroscopic, futhi inokugcinwa kwamanzi okuqinile kwe-hydrophilic.Isixazululo saso esinamanzi sinomsebenzi ongaphezulu futhi imikhiqizo ye-viscosity ephezulu ine-pseudoplasticity ephezulu.Ingenziwa ibe ifilimu esobala e-anhydrous enamandla amaphakathi, engangcoliswa kalula uwoyela, engathinteki ekukhanyeni, isenayo ifilimu ye-HEC encibilika emanzini.Ngemuva kokwelashwa okungaphezulu, i-HEC iyahlakazeka futhi ayihlangani emanzini, kodwa incibilika kancane.I-PH ingalungiswa ibe ngu-8-10 futhi incibilike ngokushesha.

Izakhiwo eziyinhloko

IHydroxyethyl cellulose(HEC) iwukuthi ingancibilika emanzini abandayo nasemanzini ashisayo, futhi ayinazo izici zejeli.Inohlu olubanzi lokushintshwa, ukunyibilika kanye ne-viscosity.Inokuqina okuhle kokushisa (ngaphansi kuka-140 ° C) futhi ayikhiqizi ngaphansi kwezimo ezine-asidi.imvula.Isixazululo se-hydroxyethyl cellulose(HEC) singakha ifilimu esobala, enezici ezingezona i-ionic ezingasebenzisani nama-ion futhi ezinokuhambisana okuhle.

Njenge-colloid evikelayo, i-Paint grade HEC ingasetshenziselwa i-vinyl acetate emulsion polymerization ukuze kuthuthukiswe ukuzinza kwesistimu ye-polymerization ebangeni elibanzi le-PH.Ekwenziweni kwemikhiqizo eqediwe ukwenza i-pigment, i-filler nezinye izithasiselo zihlakazeke ngokulinganayo, zizinzile futhi zinikeze umphumela wokuqina.Ingase futhi isetshenziselwe i-styrene, i-acrylic, i-acrylic namanye ama-polymers amisiwe njengama-dispersants, asetshenziswe kupende we-latex angathuthukisa kakhulu ukuqina, athuthukise ukusebenza kokulinganisa.

Ukucaciswa Kwekhemikhali

Imikhiqizo Amabanga 

Indlela yokusebenzisa i-hydroxyethyl cellulose HEC emanziniupende

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 wokulinda uketshezi: le ndlela ifakwe kuqala uketshezi oluningi lukamama, bese wengeza upende we-latex, inzuzo yale ndlela iguquguqukayo kakhulu, ingafakwa ngokuqondile ekupendeni imikhiqizo eqediwe, kodwa kufanele ibe 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 elijwayelekile lenziwa ngokuxuba izingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa nengxenye eyodwa ye-hydroxyethyl cellulose.Ngemuva kwemizuzu engaba ngu-5-30, i-Paint grade HEC i-hydrolyzes futhi ikhuphuke ngokubonakalayo.Ehlobo, umswakama wamanzi uphakeme kakhulu ukuthi ungasetshenziselwa uphuthu.

4 .Izindaba ezidinga ukunakwa lapho uhlomisa ugologo kamama we-hydroxyethyl cellulose:

Pizixwayiso

1 Ngaphambi nangemuva kokwengeza i-Paint grade HEC, kufanele inyakaziswe ngokuqhubekayo kuze kube yilapho ikhambi lisobala ngokuphelele futhi licacile.

2. Hlanga kancane kancane i-hydroxyethyl cellulose ethangini lokuxuba.Ungawufaki ethangini lokuxuba ngobuningi noma ngokuqondile ngobuningi noma ebangeni likapende oyindilinga HEC.

3 izinga lokushisa lamanzi kanye nenani le-pH lamanzi lihlobene ngokusobala nokuqedwa kwe-Paint grade HEC hydroxyethyl cellulose, ngakho-ke kufanele kuqashelwe ngokukhethekile.

Ungangezi okuthile okuyisisekelo engxubeni ngaphambi kokuba i-Paint grade HEC hydroxyethyl cellulose powder ifakwe emanzini.Ukuphakamisa i-pH ngemva kokucwiliswa kusiza ukuncibilika.

5 .Ngokusemandleni, ukufakwa kusenesikhathi kwe-mildew inhibitor.

6 Uma usebenzisa i-viscosity ephezulu ye-Paint grade HEC, ukuhlushwa kotshwala kamama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala bomama kunzima ukubusebenzisa.

Izinto ezithinta i-viscosity kapende we-latex

1.Uma amabhamuza omoya ayinsalela 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 izinto zokujiyisa zemvelo kufomula kapende kanye nesilinganiso somthamo ngebanga lePaint HEC.)

5.enqubweni yokwenza upende, ukuhleleka kwezinyathelo zokwengeza i-thickener kufanelekile.

6.Ngenxa yokuyaluza ngokweqile kanye nomswakama owedlulele ngesikhathi sokuhlakazeka.

7.Ukuguguleka kwe-microbial of thickener.

Ukupakisha: 

Izikhwama zephepha ezingama-25kg zangaphakathi ezinezikhwama ze-PE.

I-20'FCL ilayisha i-12ton nge-pallet

40'FCL umthwalo 24ton nge Pallet