I-ether ye-celluloseiyi-polymer yama-molecule ephezulu engeyona i-ionic eyenziwe nge-semi-synthetic, encibilika emanzini futhi encibilika nge-solvent. Inemiphumela ehlukene ezimbonini ezahlukene. Isibonelo, ezintweni zokwakha zamakhemikhali, inemiphumela elandelayo ehlanganisiwe:
① I-ejenti yokugcina amanzi, ②I-thickener, ③Impahla yokulinganisa, ④Impahla yokwakha ifilimu,
⑤Isibopho
Embonini ye-polyvinyl chloride, iyi-emulsifier kanye ne-dispersant; embonini yezemithi, iyi-binder kanye nezinto zohlaka lokukhululwa okuhamba kancane nokulawulwayo, njll. Ngenxa yokuthi i-cellulose inemiphumela ehlukahlukene ehlanganisiwe, ukusetshenziswa kwayo Insimu nayo ibanzi kakhulu. Okulandelayo, ngizogxila ekusetshenzisweni nasekusebenzeni kwe-cellulose ether ezintweni zokwakha ezahlukahlukene.
Iupende we-latex
Embonini yokupenda i-latex, ukukhetha i-hydroxyethyl cellulose, incazelo ejwayelekile ye-viscosity elinganayo ingu-30000-50000cps, okuhambisana nencazelo ye-HBR250, kanti umthamo ojwayelekile uvame ukuba ngu-1.5‰-2‰. Umsebenzi oyinhloko we-hydroxyethyl kupende we-latex ukujiya, ukuvimbela i-gelation ye-pigment, ukusiza ukuhlakazeka kwe-pigment, ukuqina kwe-latex, nokwandisa i-viscosity yezingxenye, okuwusizo ekusebenzeni kokulinganisa kokwakhiwa: I-Hydroxyethyl cellulose ilula kakhulu ukuyisebenzisa. Ingancibilikiswa emanzini abandayo noma emanzini ashisayo, futhi ayithintwa yinani le-pH. Ingasetshenziswa ngokuphephile phakathi kwenani le-PI 2 ne-12. Izindlela zokusebenzisa yilezi ezilandelayo:
1. Engeza ngqo ekukhiqizweni
Kule ndlela, kufanele kukhethwe uhlobo olulibazisekile lwe-hydroxyethyl cellulose, bese kusetshenziswa i-hydroxyethyl cellulose enesikhathi sokuncibilika esingaphezu kwemizuzu engama-30. Izinyathelo zimi kanje: ① Faka inani elithile lamanzi ahlanzekile esitsheni esifakwe i-agitator eshefa kakhulu ② Qala ukuxuba ngokuqhubekayo ngesivinini esiphansi, bese ufaka kancane kancane iqembu le-hydroxyethyl esixazululweni ngokulinganayo ③Qhubeka uvuselela kuze kube yilapho zonke izinto ezihlanganisiwe zimanzi ④Engeza ezinye izithasiselo kanye nezithasiselo eziyisisekelo, njll. ⑤Hlanganisa kuze kube yilapho wonke amaqembu e-hydroxyethyl encibilika ngokuphelele, bese ufaka ezinye izingxenye kufomula bese ugaya kuze kube umkhiqizo oqediwe.
2. Ifakwe utshwala obuvela kumama ukuze busetshenziswe kamuva
Le ndlela ingakhetha uhlobo olusheshayo, futhi ine-cellulose yokulwa nokuminza. Inzuzo yale ndlela ukuthi inokuguquguquka okukhulu futhi ingafakwa ngqo kupende we-latex. Indlela yokulungiselela ifana nezinyathelo ①-④.
3. Yenza iphalishi ukuze ulisebenzise kamuva
Njengoba izinyibilikisi eziphilayo ziyizinyibilikisi ezibuthakathaka (ezingancibiliki) ze-hydroxyethyl, lezi zinyibilikisi zingasetshenziswa ukwakha iphalishi. Izinyibilikisi eziphilayo ezisetshenziswa kakhulu yiziketshezi eziphilayo ezakhiweni zopende we-latex, njenge-ethylene glycol, i-propylene glycol, kanye nama-ejenti akha ifilimu (njenge-diethylene glycol butyl acetate). Iphalishi i-hydroxyethyl cellulose lingafakwa ngqo kupende. Qhubeka uvuselela uze uncibilike ngokuphelele.
Ii-putty
Njengamanje, emadolobheni amaningi ezweni lakithi, i-putty engangeni manzi futhi engakhuhli imvelo iye yaziswa kakhulu ngabantu. Ikhiqizwa ukusabela kwe-acetal kwe-vinyl alcohol kanye ne-formaldehyde. Ngakho-ke, le nto isuswa kancane kancane ngabantu, futhi imikhiqizo yochungechunge lwe-cellulose ether isetshenziselwa ukufaka esikhundleni sale nto. Okusho ukuthi, ekuthuthukiseni izinto zokwakha ezingangeni mvelo, i-cellulose okwamanje iyona kuphela into.
Ku-putty engangeni manzi, ihlukaniswe ngezinhlobo ezimbili: i-putty yempuphu eyomile kanye ne-putty paste. Phakathi kwalezi zinhlobo ezimbili ze-putty, i-methyl cellulose kanye ne-hydroxypropyl methyl kufanele kukhethwe. Incazelo ye-viscosity ngokuvamile iphakathi kuka-40000-75000cps. Imisebenzi eyinhloko ye-cellulose ukugcinwa kwamanzi, ukubopha kanye nokugcoba.
Njengoba amafomula e-putty abakhiqizi abahlukahlukene ehlukene, amanye ayi-gray calcium, i-calcium elula, usimende omhlophe, njll., kanti amanye ayi-gypsum powder, i-gray calcium, i-calcium elula, njll., ngakho-ke imininingwane, i-viscosity kanye nenani lokungena kwe-cellulose elikhethwe yila mafomula amabili nakho kuhlukile. Inani elingeziwe licishe libe ngu-2‰-3‰.
Isikhathi sokuthunyelwe: Ephreli-28-2024