Indlela yokusebenzisa i-hydroxyethyl cellulose kupende we-latex
1. I-Hydroxyethyl cellulose enephalishi njenge-phenology: ngenxa yokuthi i-hydroxyethyl cellulose ayincibiliki kalula kuzincibilikisi zemvelo, ezinye izinyibilikisi zemvelo zingasetshenziswa ukuhlomisa iphalishi.Amanzi eqhwa nawo ayincibilikisi embi, ngakho avame ukusetshenziswa ephalishini elinoketshezi oluphilayo.I-hydroxyethyl cellulose yefomu le-congee ingangezwa ngokuqondile kupende we-emulsii.I-Hydroxyethyl cellulose igcwaliswe ngendlela yephalishi.Uma yengezwe kupende, iyancibilika ngokushesha futhi ishube.Qhubeka ugqugquzela kuze kube yilapho i-hydroxyethyl cellulose ihlakazeka ngokuphelele futhi ichitheka.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.(Kuphakanyiswa ukuthi umswakama wamanzi ehlobo uphezulu kakhulu ukuthi ungasetshenziselwa iphalishi.)
2. Engeza i-hydroxyethyl cellulose ngqo ku-pigment yokugaya: le ndlela ilula futhi isikhathi sifushane.Izindlela ezinemininingwane zimi kanje:
(1) Engeza amanzi ahlanzekile afanelekile ku-VAT ephezulu kufanele kusikwe isiphehlisi (ngokuvamile, izithasiselo zokwakha ifilimu kanye nezinto zokumanzisa ziyengezwa ngalesi sikhathi)
(2) Qala ukunyakazisa ngesivinini esiphansi ngaphandle kokuma bese wengeza kancane kancane i-hydroxyethyl cellulose ngokulinganayo
(3) Qhubeka ugoqa kuze kube yilapho zonke izinhlayiya zihlakazeka ngokulinganayo futhi zicwiliswe
(4) Engeza i-mildew inhibitor futhi ulungise inani le-PH
(5) Hlanganisa kuze kube yilapho yonke i-cellulose ye-hydroxyethyl ichitheka ngokuphelele (i-viscosity yesisombululo ikhula kakhulu), bese wengeza ezinye izingxenye kufomula, futhi ugaye kuze kube yilapho iba upende.
I-3 i-hydroxyethyl cellulose enomama olindile oketshezi: le ndlela ifakwe kuqala ukuhlushwa okuphezulu koketshezi lukamama, bese wengeza upende we-latex, inzuzo yale ndlela iguquguqukayo, ingangeza ngokuqondile imikhiqizo eqediwe kapende, kodwa endaweni yokugcina efanele.Izinyathelo nezindlela zifana nezinyathelo (1) - (4) ku-Method 2, ngaphandle kokuthi i-agitator yokusika ephezulu ayidingeki futhi kuphela amanye ama-aggers anamandla anele okugcina imicu ye-hydroxyethyl ihlakazeke ngokulinganayo esixazululweni isetshenziswa.Qhubeka ugqugquzela kuze kube yilapho incibilika ngokuphelele ibe isixazululo esiwugqinsi.Qaphela ukuthi: i-anti-mildew agent kufanele yengezwe ngokushesha kutshwala kamama kapende.
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.
(1) Ngaphambi nangemva kokwengeza i-hydroxyethyl cellulose, kufanele iqhubeke inyakaza, kuze kube yilapho ikhambi lisobala ngokuphelele futhi licacile.
(2) Kudingeka ukusefa i-hydroxyethyl cellulose ethangini elinyakazayo kancane.Ungawufaki ngobuningi noma ngqo ethangini elinyakazayo.
(3) Ukuncibilika kwe-hydroxyethyl cellulose ngokusobala kuhlobene nezinga lokushisa lamanzi kanye nenani le-pH lamanzi, ngakho-ke kufanele kuqashelwe ngokukhethekile.
(4) Ungangezi ezinye izinto eziyisisekelo engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder icwiliswe ngamanzi.Ukuphakamisa i-pH ngemva kokucwiliswa kusiza ukuncibilika.
(5) Ngokusemandleni, ukufakwa kusenesikhathi kwe-mildew inhibitor.
(6) Uma usebenzisa i-viscosity ephezulu ye-hydroxyethyl cellulose, ukugcwala kotshwala kamama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala bomama kunzima ukubusebenzisa.
Izici ezithinta i-viscosity kapende we-latex:
(1) Ngenxa yokunyakazisa ngokweqile kanye nomswakama owedlulele lapho kuhlakazwa.
(2) inani lezinye izinto zokujiya zemvelo kufomula kapende kanye nengxenye yenani eline-hydroxyethyl cellulose.)
(3) inani le-activator engaphezulu namanzi kufomula kapende liyahambisana.
(4 ekuhlanganisweni kwe-latex, okuqukethwe kwe-catalyst oxide eyinsalela yenombolo.
Ukuguguleka kwe-Microbial ye-thickener.
6 ngesikhathi sokwenza upende, ukuhleleka kwezinyathelo zokwengeza i-thickener kufanelekile.
Uma amabhamuza omoya asala kupende, i-viscosity iyanda
Isikhathi sokuthumela: Jun-02-2022