I-Cellulose ether iwuhlobo lwe-polymer yamangqamuzana e-non-ionic semi-synthetic ephezulu.Inezinhlobo ezimbili zezakhiwo ezincibilikayo emanzini nezisekelwe ku-solvent.Inemiphumela ehlukene ezimbonini ezahlukene.Isibonelo, ezintweni zokwakha zamakhemikhali, zinemiphumela eyinhlanganisela elandelayo: ①I-ejenti egcina amanzi ②Thickener ③Leveling ④Film-forming ⑤Binder;embonini ye-PVC, iyi-emulsifier ne-dispersant;embonini yezemithi, iyisibopho futhi Ngenxa yokuthi i-cellulose inemiphumela ehlukahlukene eyinhlanganisela, iphinde isetshenziswe kakhulu.Ngezansi ngizogxila ekusetshenzisweni nasekusebenzeni kwe-cellulose ethers ezintweni zokwakha ezinobungani bemvelo.
1. Ngopende we-latex
Embonini yokupenda ye-latex, i-hydroxyethyl cellulose kufanele ikhethwe.Ukucaciswa okujwayelekile kwe-viscosity yi-RT30000-50000cps, futhi isilinganiso sereferensi ngokuvamile simayelana ne-1.5 ‰-2 ‰.Umsebenzi oyinhloko we-hydroxyethyl kupende we-latex ukujiya, ukuvimbela i-pigment gelation, ukusiza ukuhlakazeka kwe-pigment, i-latex, nokuzinza, futhi ingathuthukisa i-viscosity yezingxenye futhi ifake isandla ekusebenzeni kokulinganisa kokwakhiwa: I-Hydroxyethyl Ethyl cellulose isebenziseka kalula.Ingancibilika emanzini abandayo nasemanzini ashisayo, futhi ayithinteki ngenani le-pH.Ingasetshenziswa phakathi kwenani le-pH lika-2 no-12. Kunezindlela ezintathu ezilandelayo:
I. Engeza ngokuqondile ekukhiqizeni:
Le ndlela kufanele ikhethe uhlobo olubambezelekile lwe-hydroxyethyl cellulose - i-hydroxyethyl cellulose enesikhathi sokuhlakazeka esingaphezu kwemizuzu engama-30.Izinyathelo zokusebenzisa zimi kanje: ① Faka inani elithile lamanzi ahlanzekile esitsheni esinomshini wokushefa okuphezulu ② Qala ukunyakazisa ngokuqhubekayo ngesivinini esiphansi, futhi ngesikhathi esifanayo kancane kancane futhi ngokulinganayo wengeze iqembu le-hydroxyethyl esixazululweni ③ Qhubeka ushukumisa. kuze kucwiliswe zonke izinto eziyimbudumbudu ④ Faka ezinye izithasiselo nezithako ze-alkaline, njll. ⑤ Govuza kuze kuqedwe wonke amaqembu e-hydroxyethyl, Faka zonke ezinye izithako ku-iresiphi bese ugaya kuze kuqedwe.
Ⅱ.Ihlonyiswe ngotshwala kamama:
Le ndlela ingakhetha uhlobo olusheshayo, futhi inomphumela we-anti-mildew cellulose.Inzuzo yale ndlela yukuthi inokuguquguquka okukhulu futhi ingafakwa ngokuqondile kupende we-latex.Indlela yokulungiselela iyafana nezinyathelo ze-①–④.
Ⅲ.Ukulungiselela izakhiwo ezifana nephalishi:
Njengoba izincibilikisi zemvelo zingama-solvents ampofu (angancibiliki) emaqenjini e-hydroxyethyl, amaphalishi angenziwa ngalezi zincibilikizi.Izinyibilikisi ezisetshenziswa kakhulu eziphilayo ziwuketshezi oluphilayo ekwenziweni kopende kwe-latex, okufana ne-ethylene glycol, i-propylene glycol kanye nama-filmforms (njenge-diethylene glycol butyl acetate).Iphalishi i-hydroxyethyl cellulose ingafakwa ngokuqondile kupende.Qhubeka ugovuze kuze kuqedwe ngokuphelele.
2, ukukhuhla i-putty yodonga
Njengamanje, i-putty enobungani bemvelo ekwazi ukumelana namanzi futhi imelana nokukhuhla emadolobheni amaningi ezweni lami iye yaziswa kakhulu abantu.Eminyakeni embalwa edlule, ngenxa yokuthi i-putty eyenziwe ngeglue yokwakha ikhipha igesi ye-formaldehyde futhi ilimaza impilo yabantu, i-glue yokwakha yenziwe nge-polymer Ilungiselelwe ukusabela kwe-acetal ye-vinyl utshwala ne-formaldehyde.Ngakho-ke, le nto isuswa kancane kancane ngabantu, futhi imikhiqizo yochungechunge lwe-cellulose ether ithathelwa indawo yile nto, okungukuthi, ukuthuthukiswa kwezinto zokwakha ezinobungani bemvelo, i-cellulose yiyona nto kuphela okwamanje.
Ku-putty engavimbeli amanzi, ihlukaniswe yaba i-putty eyomile ne-putty paste.Phakathi kwalezi zinhlobo ezimbili ze-putty, i-methyl cellulose eshintshiwe kanye ne-hydroxypropyl methyl ngokuvamile zikhethwa.Ukucaciswa kwe-viscosity ngokuvamile kuphakathi kuka-30000-60000cps.Imisebenzi eyinhloko ye-cellulose ku-putty ukugcinwa kwamanzi, ukubopha kanye nokugcoba.
Njengoba amafomula e-putty abakhiqizi abahlukahlukene ehlukile, amanye ayi-calcium empunga, i-calcium ekhanyayo, usimende omhlophe, njll., kanti amanye ayimpushana ye-gypsum, i-calcium empunga, i-calcium ekhanyayo, njll., ngakho la mafomula amabili akhetha ukucaciswa kwe-cellulose, i-viscosity kanye nokungena. .Isamba esingeziwe singaba ngu-2 ‰-3 ‰.
Ekwakhiweni kwe-scraping wall putty, ngoba isisekelo sodonga sinokumuncwa okuthile kwamanzi (izinga lokumuncwa kwamanzi odongeni lwesitini liyi-13%, futhi izinga lokumuncwa kwamanzi likakhonkolo liyi-3-5%), lihambisana ukuhwamuka komhlaba wangaphandle, uma i-putty ilahlekelwa amanzi ngokushesha okukhulu, kuzoholela ekuqhekekeni noma ekususweni kwempushana nezinye izenzakalo, ngaleyo ndlela zenze buthaka amandla e-putty.Ngalesi sizathu, ukwengeza i-cellulose ether kuzoxazulula le nkinga.Kodwa ikhwalithi ye-filler, ikakhulukazi ikhwalithi ye-lime calcium, nayo ibaluleke kakhulu.Ngenxa yokuthi i-cellulose ine-viscosity ephezulu, iphinde ithuthukise ukushelela kwe-putty, igweme ukuwohloka ngesikhathi sokwakhiwa, futhi ikhululekile futhi yonga umsebenzi ngemva kokukhuhla.
3. Udaka lukakhonkolo
Odakeni lukakhonkolo, ukuze kuzuzwe amandla okugcina ngempela, usimende kufanele ugcwale amanzi ngokuphelele, ikakhulukazi ekwakhiweni kwehlobo, udaka lukakhonkolo lulahlekelwa amanzi ngokushesha, futhi izinyathelo zokukhipha amanzi ngokuphelele zithathwa ukuze kugcinwe futhi kufafazwe amanzi.Ukuchithwa kwezinsiza kanye nokusebenza okungalungile, okubalulekile ukuthi amanzi angaphezulu kuphela, futhi i-hydration yangaphakathi namanje ayiphelele, ngakho-ke isisombululo sale nkinga ukwengeza i-hydroxypropyl methyl cellulose noma i-methyl cellulose kukhonkolo yodaka.Ukucaciswa kwe-viscosity kuphakathi kuka-20000-60000cps, inani elingeziwe lingaba ngu-2 ‰–3‰, futhi izinga lokugcinwa kwamanzi lingakhuphuka libe ngaphezu kwama-85%.Indlela yokusebenzisa ukhonkolo wodaka ukuxuba impushana eyomile ngokulinganayo bese ufaka amanzi.
4. Ku-plaster, ukuhlanganisa ukhonkolo nokhonkolo
Ngokuthuthuka okusheshayo kwemboni yezokwakha, isidingo sabantu sezinto zokwakha ezintsha sikhula usuku nosuku.Ngenxa yokwanda kokuqwashisa kwabantu ngokuvikelwa kwemvelo kanye nokuthuthukiswa okuqhubekayo kokusebenza kahle kokwakhiwa, imikhiqizo ye-gypsum kasimende ithuthuke ngokushesha.Njengamanje, imikhiqizo evame kakhulu ye-gypsum i-gypsum yokunamathisela, i-gypsum yokubopha, i-gypsum inlaying, i-tile adhesive nokunye.
I-Stucco plaster iwuhlobo lwekhwalithi ephezulu yokukhonkolo yezindonga zangaphakathi nophahla.Izindonga ezinamekwe ngayo zinhle futhi zibushelelezi, zingawisi i-powder, zibophe ngokuqinile ku-substrate, azikho ukuqhekeka nokuwa, futhi zikwazi ukumelana nomlilo;i-bonding plaster iwuhlobo lwe-plaster.Uhlobo olusha lokunamathisela kwebhodi lokukhanya lokwakha luyinto enamathelayo eyenziwe nge-gypsum njengento eyisisekelo futhi ingeza izithasiselo ezihlukahlukene.Ifanele ukuhlangana phakathi kwezinto ezihlukahlukene zezindonga zokwakha ezingaphili.Ayinabuthi, ayinambitheki, Inezici zamandla okuqala, ukusetha okusheshayo nokubopha okuqinile, futhi iyimpahla esekela ukwakhiwa kwamabhodi okwakha namabhulokhi;
Le mikhiqizo ye-gypsum inochungechunge lwemisebenzi ehlukene, ngaphezu kwendima ye-gypsum nama-fillers ahlobene, inkinga eyinhloko ukuthi i-cellulose ether engeziwe engeziwe idlala indima ehamba phambili.Njengoba i-gypsum ihlukaniswe yaba yi-anhydrite ne-hemihydrate gypsum, i-gypsum ehlukene inemiphumela ehlukene ekusebenzeni komkhiqizo, ngakho-ke ukuqina, ukugcinwa kwamanzi kanye nokunciphisa kunquma izinga lezinto zokwakha ze-gypsum.Inkinga evamile yalezi zinto ezisetshenziswayo ukuqhekeka okungenalutho, futhi amandla okuqala awakwazi ukufinyelelwa.Ukuxazulula le nkinga, kuyinkinga yokukhetha uhlobo lwe-cellulose kanye nendlela yokusebenzisa inhlanganisela ye-retarder.Mayelana nalokhu, i-methyl noma i-hydroxypropyl methyl 30000 ngokuvamile ikhethwa.-60000cps, inani elingeziwe liphakathi kuka-1.5 ‰–2 ‰, ukugxila kwe-cellulose ukugcinwa kwamanzi, ukungasebenzi kanye nokugcotshwa.
Kodwa-ke, akunakwenzeka ukuthembela ku-cellulose ether njenge-retarder, futhi kuyadingeka ukwengeza i-citric acid retarder ukuze uhlanganise futhi uyisebenzise ukuze amandla okuqala angathinteki.
Izinga lokugcinwa kwamanzi ngokuvamile libhekisela ekulahlekeni kwamanzi okungokwemvelo lapho ukungabikho kokumuncwa kwamanzi kwangaphandle.Uma udonga lomile kakhulu, ukumuncwa kwamanzi kanye nokuhwamuka kwemvelo endaweni ephansi kuzobangela ukuthi impahla ilahlekelwe amanzi ngokushesha, futhi ukugoba nokuqhekeka nakho kuzokwenzeka.
Le ndlela yokusetshenziswa ixubene nempushana eyomile.Uma isixazululo silungiswa, sicela ubheke indlela yokulungiselela ikhambi.
5. Udaka lwe-insulation
I-thermal insulation mortar iwuhlobo olusha lwezinto ezifakwa ngaphakathi ezindongeni ezishisayo esifundeni esisenyakatho.Kuyimpahla yodonga eyakhiwe ngezinto zokushisa ezishisayo, udaka kanye ne-binder.Kule nto, i-cellulose idlala indima ebalulekile ekuhlanganiseni nasekukhuliseni amandla.Ngokuvamile khetha i-methyl cellulose ene-viscosity ephezulu (mayelana ne-10000eps), umthamo uvame ukuba phakathi kuka-2 ‰-3 ‰), futhi indlela yokusebenzisa indlela yokuxuba i-powder eyomile.
6. I-ejenti yesixhumi esibonakalayo
I-ejenti yesixhumi esibonakalayo yi-HPNC20000cps, futhi ingcina yethayela ingaphezu kuka-60000cps.Ku-ejenti yesixhumi esibonakalayo, isetshenziswa ikakhulukazi njenge-thickener, engathuthukisa amandla aqinile kanye nokumelana nomcibisholo.
Isikhathi sokuthumela: Nov-02-2022