Ukusetshenziswa kwe-hydroxyethyl cellulose kupende lwe-latex kanje: 1. Engeza ngokuqondile lapho ugaya i-pigment: le ndlela ilula, futhi isikhathi esisetshenzisiwe sifushane.Izinyathelo ezinemininingwane zimi kanje: (1) engeza amanzi ahlanzekile afanele (ngokuvamile, i-ethylene glycol, i-ethylene glycol, i-ejenti yokumanzisa kanye ne-ejenti eyenza ifilimu iyengezwa ngalesi sikhathi)(2) qala ukunyakazisa ngesivinini esiphansi ngokuqhubekayo futhi kancane wengeze i-hydroxyethyl cellulose (3) qhubeka ugqugquzela kuze kube yilapho zonke izinhlayiya zimanzi (4) engeza inhibitor yesikhutha;Isilawuli se-PH, njll. (5) gqugquzela kuze kube yilapho yonke i-hydroxyethyl cellulose ichitheka ngokuphelele (isixazululo se-viscosity sikhuphuka) ngaphambi kokwengeza ezinye izingxenye zefomula, ukugaya kuze kupende.
2.Ifakwe ngotshwala kamama obulinde ukusetshenziswa: le ndlela ifakwe kuqala uketshezi oluningi lukamama, bese yengezwa kupende we-latex, le ndlela inenzuzo yokuguquguquka okukhulu, ingafakwa ngokuqondile emikhiqizweni kapende, kodwa kufanele ibe igcinwe kahle.Izinyathelo nezindlela ziyafana nezinyathelo (1)-(4) endleleni 1, ngaphandle kokuthi i-shear agitator ephezulu ayidingeki, futhi i-agitator kuphela enamandla anele ukugcina imicu ye-hydroxyethyl ihlakazeke ngokufanayo esixazululweni iyadingeka.Qhubeka ugqugquzela kuze kube yilapho incibilika ngokuphelele ibe yisisombululo se-viscous.Kumele uqaphele ukuthi: i-mildew inhibitor kufanele yengezwe otshwaleni kamama ngokushesha okukhulu.3. I-Congee ne-phenology: njengoba izinyibilikisi ze-organic ze-hydroxyethyl cellulose ziyi-solvent embi, ngakho-ke lezi zinyibilikisi eziphilayo zingasetshenziswa ukulungisa i-congee.Izincibilikisi eziphilayo ezivame ukusetshenziswa njenge-ethylene glycol, i-propylene glycol, nama-ejenti akhiqiza ifilimu (njenge-hexanediol noma i-diethylene glycol butyl acetate) , amanzi e-ice nawo ayincibilikisi empofu, ngakho-ke avame ukusetshenziswa noketshezi oluphilayo ukuze kulungiswe iphalishi.Iphalishi efana ne-hydroxyethyl cellulose ingafakwa ngqo kupende.I-Hydroxyethyl cellulose igcwaliswe ngokuphelele ephalishini.Uma i-lacquer ingeziwe, ihlakazeka ngokushesha futhi iqine.Ngemuva kokwengeza, kufanele inyakaziswe ngokuqhubekayo kuze kube yilapho i-hydroxyethyl cellulose ichitheka ngokuphelele futhi ifana.Ngokuvamile iphalishi linezingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa kanye nengxenye yengxube ye-hydroxyethyl cellulose, cishe imizuzu engu-5-30 kamuva, i-hydroxyethyl cellulose izokwenziwa i-hydrolyzed futhi ivuvuke.Ehlobo lapho umswakama wamanzi jikelele uphezulu kakhulu, awufanele ukuhlonyiswa ngephalishi.
3.Zine.Qaphela lapho ulungiselela ugologo kamama we-hydroxyethyl cellulose njengoba i-hydroxyethyl cellulose iyizinhlayiya ezilashwayo eziyimpushana, kulula ukuyisebenzisa futhi incibilike emanzini ngokunaka okulandelayo.1 ngaphambi nangemva kokwengeza i-hydroxyethyl cellulose, ingxube kufanele inyakaziswe ngokuqhubekayo kuze kube yilapho isisombululo sibonakala ngokuphelele futhi sicacile.2 kumele ihlungwe esigubhini sokuxuba, ungabi nenani elikhulu lezigaxa noma amabhola e-hydroxyethyl cellulose afakwe ngqo esigubhini sokuxuba.3 i-solubility ye-hydroxyethyl cellulose ihlobene nezinga lokushisa lamanzi kanye nenani le-pH emanzini, okufanele linakwe ngokukhethekile.4 ungangezi ezinye izinto eziyisisekelo kungxube ngaphambi kokuba i-hydroxyethyl cellulose powder igcwaliswe ngamanzi.Ukwandisa i-pH ngemva kokucwiliswa kusiza ukuncibilika.5 ngangokunokwenzeka, kusenesikhathi ukwengeza i-anti-mildew ejenti.I-6 uma usebenzisa i-viscosity ephezulu ye-hydroxyethyl cellulose, ukuhlushwa kotshwala kamama akukwazi ukuba ngaphezu kuka-2.5-3% (i-gravimeter) , ngaphandle kwalokho utshwala bomama kunzima ukusebenza.Izici ezithinta i-viscosity kapende we-latex:
1 Lapho okuqukethwe kwamabhamuza omoya kupende, i-viscosity iyanda.2 inani le-activator engaphezulu namanzi asetshenziswe kufomula kapende lifanelekile.3 ekuhlanganisweni kwe-latex, inani lama-catalyst ayinsalela namanye ama-oxide.4 inani lamanye amajikijolo emvelo kufomula kapende kanye nengxenye ne-hydroxyethyl cellulose.5 ohlelweni lukapende, ukwengeza ukulandelana kwesinyathelo se-thickener kufanelekile.6 ngenxa yokuyaluza ngokweqile ukuze lapho umswakama uhlakazekile ukushisa ngokweqile.I-7 microbial corrosion ye-Thickener.
Isikhathi sokuthumela: Oct-24-2023