I-Cellulose ether iyi-polymer engeyona i-ionic semi-synthetic, encibilikayo emanzini kanye ne-solvent ezimbili, ezimbonini ezihlukene ezibangelwa indima yehlukile, njengasezinto zokwakha zamakhemikhali, inomphumela olandelayo oyinhlanganisela:
① i-ejenti egcina amanzi, ② i-ejenti yokujiya, ③ ukulinganisa, ④ ukwenza ifilimu, ⑤ isibopho
Embonini ye-PVC
kuyinto emulsifier, dispersant;
Embonini ye-excipient yezemithi
iwuhlobo lwe-binder futhi ikhipha kancane i-skeleton material, ngoba i-cellulose ether inemiphumela ehlukahlukene eyinhlanganisela, ngakho-ke iyinsimu esetshenziswa kakhulu.Ngezansi ngigxila ekusetshenzisweni kwe-cellulose ether ezintweni ezihlukahlukene zokwakha kanye nendima.
Ngopende we-latex
Emgqeni kapende we-latex, ukukhetha i-hydroxyethyl cellulose, ukucaciswa okujwayelekile kwe-viscosity elinganayo yi-3000-50000cps, ihambisana nokucaciswa kwe-HBR250, umthamo wereferensi ngokuvamile ngu-1.5 ‰-2 ‰.Indima eyinhloko ye-hydroxyethyl cellulose kupende we-latex ukujiya, ukuvimbela i-pigment gelation, ukufaka isandla ekuhlakazweni kwe-pigment, i-latex, ukuzinza, futhi ingathuthukisa i-viscosity yezingxenye, ifake isandla ekusebenzeni kokulinganisa kokwakhiwa: I-Hydroxyethyl cellulose kulula ukuyisebenzisa. , kokubili amanzi abandayo nashisayo angancibilika, futhi athintwa inani le-PH.Ingasetshenziswa ngokuphephile phakathi kwe-PI value 2 kanye ne-12. Izindlela zokusebenzisa zimi kanje:
I. Engeza ngokuqondile ekukhiqizeni
Ngale ndlela, i-hydroxyethyl cellulose ebambezelekile enesikhathi sokuhlakazeka esingaphezu kwemizuzu engama-30 kufanele kukhethwe.Inqubo imi kanje: (1) ukuba high kufanele usike blender esitsheni quantitative amanzi ahlanzekile (2) amandla angaphakathi abantu baqala low-speed ukuxubana, hydroxyethyl iyunifomu kancane ngesikhathi esifanayo ukujoyina isixazululo (3) qhubeka ugoqa kuze kube yilapho zonke izinto ezimanzi ze-granular (4) ukuze ujoyine ezinye izithasiselo nezithako ze-alkaline (5) zinyakaze kuze kuqedwe ngokuphelele yonke i-hydroxyethyl, engeza ezinye izingxenye zefomula, ugaye kumkhiqizo ophelile.
2, ifakwe ugologo kamama
Le ndlela ingakhetha i-cellulose esheshayo - e-soluble, futhi inomphumela wokukhunta.Inzuzo yale ndlela iwukuba nokuguquguquka okukhulu, ungahlanganisa upende we-emulsioni ngokuqondile, ukwakha indlela iyafana nokuthi ①–④ isinyathelo siyefana.
3, nephalishi elizosetshenziswa
Njengoba izincibilikisi zemvelo zingama-solvents ampofu (angancibiliki) ku-hydroxyethyl, angasetshenziswa ukulungisa iphalishi.Izinyibilikisi ezisetshenziswa kakhulu eziphilayo uketshezi oluphilayo ekwenziweni kopende kwe-latex, njenge-ethylene glycol, i-propylene glycol kanye nama-ejenti akhiqiza ifilimu (njenge-diethylene glycol butyl acetate), i-porridge hydroxyethyl cellulose ingafakwa ngokuqondile kupende, ngemva kokwengeza, qhubeka ugovuze kuze kuqedwe ngokuphelele.
Ku-scraping wall putty
Njengamanje, i-China iphakathi kokumelana kwamanzi amaningi edolobheni, ukumelana ne-swab ye-putty yokuvikelwa kwemvelo kuye kwathathwa ngokungathi sína ngabantu, eminyakeni embalwa edlule, ngoba i-putty eyenziwe nge-glue yokwakha ikhipha umonakalo wegesi we-formaldehyde empilweni yabantu, isakhiwo. iglue yenziwe nge-polyvinyl alcohol kanye ne-formaldehyde acetal reaction.Ngakho-ke le nto iqedwa kancane kancane ngabantu, futhi ukushintshwa kwalesi sihloko uchungechunge lwemikhiqizo ye-cellulose ether, okusho ukuthi, ukuthuthukiswa kwezinto zokwakha ukuvikelwa kwemvelo, i-cellulose iwukuphela kohlobo lwezinto ezibonakalayo okwamanje.
Emanzini i-putty ihlukaniswe nge-putty eyomile ne-putty paste izinhlobo ezimbili, lezi zinhlobo ezimbili ze-putty ngokuvamile zikhetha i-methyl cellulose ne-hydroxypropyl methyl izinhlobo ezimbili, ukucaciswa kwe-viscosity ngokuvamile ku-40,000-75000cps phakathi kokufaneleka kakhulu, endimeni eyinhloko ye-cellulose. ku-putty ukugcinwa kwamanzi, ukubopha, ukugcoba kanye neminye imiphumela.
Ngenxa yokuthi ifomula ye-putty yomkhiqizi ngamunye ayifani, ezinye ziyi-calcium empunga, i-calcium ekhanyayo, usimende omhlophe, ezinye ziyi-gypsum powder, i-calcium empunga, i-calcium ekhanyayo, njll. azifani, inani elijwayelekile lokungeza ngu-2 ‰-3 ‰ noma kunjalo.
Isikhathi sokuthumela: Dec-10-2021