Indlela yokusebenzisa i-hydroxyethyl cellulose kupende we-latex
1. I-Hydroxyethyl cellulose isetshenziselwa ukwenza iphalishi: Njengoba i-hydroxyethyl cellulose ingekho lula ukuyincibilikisa ezincibilikisini eziphilayo, ezinye izincibilikisi eziphilayo zingasetshenziswa ukulungiselela iphalishi. Amanzi eqhwa nawo ayincibilikisi embi, ngakho-ke amanzi eqhwa avame ukusetshenziswa kanye noketshezi lwe-organic ukulungiselela iphalishi. I-hydroxyethyl cellulose efana nephalishi ingafakwa ngqo kupende we-latex. I-Hydroxyethyl cellulose imanziswe ngokuphelele ephalishini. Uma ifakwa kupende, iyancibilika ngokushesha futhi isebenze njengesithambisi. Ngemva kokuyifaka, qhubeka uvuselela kuze kube yilapho i-hydroxyethyl cellulose ihlakazeke ngokuphelele futhi ichitheke. Ngokuvamile, iphalishi lenziwa ngokuxuba izingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa nengxenye eyodwa ye-hydroxyethyl cellulose. Ngemva kwemizuzu engaba ngu-5-30, i-hydroxyethyl cellulose izoncibilikiswa futhi ivuvuke ngokusobala. (Khumbula ukuthi umswakama wamanzi ajwayelekile uphezulu kakhulu ehlobo, ngakho akufanele usetshenziselwe ukuhlomisa iphalishi.)
2. Faka i-hydroxyethyl cellulose ngqo lapho ugaya i-pigment: Le ndlela ilula futhi ithatha isikhathi esifushane. Indlela enemininingwane yilena elandelayo:
(1) Faka inani elifanele lamanzi ahlanzekile ebhakedeni elikhulu le-mixer enamafutha amaningi (ngokuvamile, izinsiza zokwakha amafilimu kanye nezinto zokumanzisa ziyangezwa ngalesi sikhathi)
(2) Qala ukuxuba njalo ngesivinini esiphansi bese ufaka kancane kancane nangokulinganayo i-hydroxyethyl cellulose
(3) Qhubeka uvuselela kuze kube yilapho zonke izinhlayiya zihlakazeke ngokulinganayo futhi zimanzi
(4) Engeza izithasiselo zokulwa nokukhunta ukuze ulungise inani le-PH
(5) Hlanganisa kuze kube yilapho yonke i-hydroxyethyl cellulose incibilika ngokuphelele (i-viscosity yesisombululo iyanda kakhulu), bese ufaka ezinye izingxenye kufomula, bese ugaya kuze kube yilapho upende wakheka.
3. Lungisa i-hydroxyethyl cellulose ngotshwala obungumama ukuze uyisebenzise kamuva: Le ndlela iwukulungisa utshwala obungumama obunomthamo ophezulu kuqala, bese uyifaka kupende we-latex. Inzuzo yale ndlela ukuthi iguquguquka kakhudlwana futhi ingafakwa ngqo kupende oqediwe, kodwa kumele igcinwe kahle. . Izinyathelo nendlela zifana nezinyathelo (1)-(4) endleleni yesi-2, umehluko ukuthi akudingeki i-agitator enezinwele ezinde, futhi kuphela ama-agitator athile anamandla anele okugcina i-hydroxyethyl fiber ihlakazeke ngokulinganayo esixazululweni yi-Can. Qhubeka uvuselela njalo kuze kube yilapho incibilika ngokuphelele ibe yisisombululo esiqinile. Kufanele kuqashelwe ukuthi i-antifungal agent kumele ifakwe kutshwala obungumama obungumama obungumama ngokushesha okukhulu.
Izinto ezi-4 ezidinga ukunakwa lapho kulungiswa ugologo womama we-hydroxyethyl cellulose
Njengoba i-hydroxyethyl cellulose iyimpuphu ecutshungulwayo, kulula ukuyiphatha nokuyincibilikisa emanzini uma nje izinto ezilandelayo ziqashelwa.
(1) Ngaphambi nangemva kokufaka i-hydroxyethyl cellulose, kumele ivuselelwe njalo kuze kube yilapho ikhambi selicacile futhi licacile ngokuphelele.
(2) Kumelwe ihlungwe kancane kancane ethangini lokuxuba, futhi ungafaki ngokuqondile inani elikhulu le-hydroxyethyl cellulose elakhe izigaxa noma amabhola ethangini lokuxuba.
(3) Izinga lokushisa lamanzi kanye nenani le-pH emanzini kunobudlelwano obubalulekile nokuncibilika kwe-hydroxyethyl cellulose, ngakho-ke kufanele kunakwe ngokukhethekile.
(4) Ungafaki ezinye izinto ze-alkaline engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder imanziswe ngamanzi. Ukuphakamisa i-pH ngemva kokumanzisa kusiza ekuncibilikeni.
(5) Kangangokunokwenzeka, engeza i-anti-fungus kusenesikhathi.
(6) Uma usebenzisa i-hydroxyethyl cellulose ene-viscosity ephezulu, ukuhlushwa kotshwala obungumama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala obungumama buzoba nzima ukusingatha.
Izici ezithinta ukujiya kopende we-latex:
(1) Ngenxa yokuxubha ngokweqile, umswakama ushisa kakhulu ngesikhathi sokuhlakazeka.
(2) Inani lezinye izinto zokujiya zemvelo ekwakhiweni kopende kanye nesilinganiso senani le-hydroxyethyl cellulose.
(3) Ukuthi inani le-surfactant kanye nenani lamanzi asetshenziswe kufomula yopende kufanelekile yini.
(4) Lapho kuhlanganiswa i-latex, inani lokuqukethwe kwe-oxide njenge-catalyst esele.
(5) Ukugqwala kwesithambisi-zinto eziphilayo.
(6) Enqubweni yokwenza upende, ingabe ukulandelana kwezinyathelo zokwengeza isithambisi kufanelekile.
7 Uma amabhamuza omoya amaningi ehlala kupende, kulapho i-viscosity iphakama khona
Isikhathi sokuthunyelwe: Mashi-04-2023