Umsebenzi kanye nokusetshenziswa kwe-cellulose ether
I-cellulose etheriyi-polymer engeyona i-ionic semi-synthetic, encibilikayo emanzini futhi encibilikayo ezimbili, ezimbonini ezahlukene ezibangelwa indima yehlukile, njengasezinto zokwakha zamakhemikhali, inomphumela oyinhlanganisela: ① i-ejenti egcina amanzi ② i-ejenti yokuqina ③ leveling ④ ifilimu ukwakha ⑤ binder; Embonini ye-PVC, iyi-emulsifier, i-dispersant; Embonini yezemithi, iwuhlobo lwe-binder kanye nokukhululwa kancane kwe-skeleton material, ngoba i-cellulose inemiphumela ehlukahlukene ehlanganisiwe, ngakho-ke insimu esetshenziswa kakhulu. Ngezansi ngigxila ekusetshenzisweni kwe-cellulose ether ezintweni ezihlukahlukene zokwakha kanye nendima.
1, upende we-latex:
Emgqeni wepende we-latex, ukukhethai-hydroxyethyl cellulose, ukucaciswa okujwayelekile kwe-viscosity yi-RT3000-50000cps, ihambisana nokucaciswa kwe-HBR250, isilinganiso sereferensi ngokuvamile si-1.5 ‰-2‰. Indima eyinhloko ye-hydroxyethyl 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 awathintwa inani le-PH. Ingasetshenziswa ngokuphephile phakathi kwe-PI value 2 kanye ne-12. Izindlela zokusebenzisa zimi kanje:
I. Ngeza ngokuqondile:
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.
ⅱ. Ifakwe utshwala bukamama:
Le ndlela ingakhetha i-cellulose esheshayo - e-soluble, futhi inomphumela wokukhunta. Inzuzo yale ndlela ukuthi inokuguquguquka okukhulu futhi ingangezwa ngokuqondile Kupende we-latex, indlela yokulungiselela iyafana nezinyathelo ①–④.
ⅲ, 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 okwakha ifilimu (njenge-diethylene glycol butyl acetate), i-porridge hydroxyethyl cellulose ingafakwa ngokuqondile kupende, ngemva kokwengeza, qhubeka ugovuze kuze kuqedwe ngokuphelele.
2, ukunwaya udonga ku-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.
Ku-putty ukumelana namanzi ihlukaniswe nge-putty eyomile ne-putty paste izinhlobo ezimbili, izinhlobo ezimbili ze-putty ngokuvamile zikhetha i-modified methyl cellulose ne-hydroxypropyl methyl izinhlobo ezimbili, ukucaciswa kwe-viscosity ngokuvamile ku-3000-60000cps phakathi kokufaneleka kakhulu, endimeni eyinhloko i-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.
Odongeni lokushaya lunesithukuthezi ngokwakhiwa kwengane, isisekelo sodonga sinokumunca okuthile (udonga lwezitini lwezinga le-bibulous lwalungu-13%, ukhonkolo luyi-3-5%), oluhambisana nokuhwamuka komhlaba wangaphandle, ngakho-ke uma unesithukuthezi ngengane. ukulahlekelwa kwamanzi ngokushesha okukhulu, kungaholela ekuqhekekeni noma into efana nempova, ukuze amandla e-putty abe buthaka, ngakho-ke, ngemva kokujoyina i-cellulose ether izoxazulula le nkinga. Kodwa ikhwalithi yezinto zokugcwalisa, ikakhulukazi ikhwalithi ye-gray calcium nayo ibaluleke kakhulu. Ngenxa ye-viscosity ephezulu ye-cellulose, iphinde ithuthukise ukuvuthwa kwe-putty, futhi igweme ukwenzeka kokugeleza okulenga ekwakhiweni, futhi ikhululekile futhi isindisa umsebenzi ngemva kokukhuhla.
Ku-powder putty, i-cellulose ether kufanele yengezwe ngokufanele endaweni yefekthri, ukukhiqizwa kwayo, ukusetshenziswa kwayo kulula kakhulu, ukugcwalisa impahla kanye ne-powder eyomile eyisizayo ingaxutshwa ngokulinganayo, ukwakhiwa kulula kakhulu, ukusatshalaliswa kwamanzi esayithi, kungakanani ngamanani.
3, udaka lukakhonkolo:
Ngodaka lukakhonkolo, ukufeza amandla okugcina ngempela, kufanele wenze ukusabela kwe-cement hydration ngokuphelele, ikakhulukazi ehlobo, ekwakhiweni kokulahlekelwa kwamanzi odaka lukakhonkolo ngokushesha okukhulu, izinyathelo ezinama-hydrated ngokuphelele ekuphulukiseni amanzi, le ndlela iwukuchithwa kwemithombo yamanzi futhi ukusebenza okungalungile, ukhiye ungaphezulu nje, amanzi kanye ne-hydration namanje akukafiki ngokuphelele, ngakho-ke izindlela zokuxazulula le nkinga, Faka i-cellulose egcina amanzi eyisishiyagalombili kukhonkolo wodaka ukuze ukhethe i-hydroxypropyl methyl noma i-methyl cellulose, ukucaciswa kwe-viscosity ngo-20000- 60000cps phakathi, engeza 2%–3%. Cishe, izinga lokugcinwa kwamanzi linganyuswa libe ngaphezu kwama-85%, endleleni yokusebenzisa ukhonkolo odakeni lwempushana eyomile exutshwe ngokulinganayo ngemva kokuba umlomo ungene emanzini.
4, i-gypsum yopende, i-gypsum ebophayo, i-caulking gypsum:
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 ye-cementitious material ibe yintuthuko esheshayo. Okwamanje izimpahla ze-gesso ezivamile zine-stucco gesso, i-caking gesso, i-gesso emisiwe, i-ejenti yokufaka amakhekhe amathayili okumele ilinde.
Ukunamathisela ukhonkolo kuwuhlobo lwekhwalithi enhle yangaphakathi yodonga kanye nempahla yokupulasitela ophahleni, ngalo sula udonga luthambile futhi lubushelelezi, ungawisi impushana nesisekelo sebhondi ngokuqinile, akukho mkhuba wokuqhekeka, futhi unomsebenzi wokuvimbela umlilo; I-Adhesive Gypsum iwuhlobo olusha lokunamathisela kwebhodi lokukhanya, i-gypsum njengento eyisisekelo, kanye nezinhlobonhlobo zokwengeza i-ejenti yomlomo wamandla eyenziwe ngezinto ezinamathelayo, ilungele zonke izinhlobo zezinto zokwakha ezingaphili phakathi kwesibopho, ezingenabuthi. , okunganambitheki, ukusetha okusheshayo kwamandla okuqala, ukubopha ibhodi lokwakha, izinto ezisekela ukwakhiwa kwebhulokhi; I-ejenti yokugcwalisa umphetho we-Gypsum iyipuleti le-gypsum phakathi kwezinto zokugcwalisa igebe nodonga, ukugcwaliswa kokulungisa ukuqhekeka.
Le mikhiqizo ye-gypsum inohlu lwemisebenzi ehlukene, ngaphezu kwe-gypsum kanye nezigcwalisi ezihlobene ukuze zidlale indima, indaba eyinhloko izithasiselo ze-cellulose ether ezengeziwe zidlala indima ehamba phambili. Ngenxa yokuthi i-gesso ihlukaniswe ibe ngaphandle kwe-gesso yamanzi kanye nesenti le-gesso yamanzi enguhhafu, i-gesso ehlukile ihlukile kumphumela wokusebenza komkhiqizo, yanda kakhulu, ivikela amanzi, yenza kancane ikhwalithi enquma izinto zokwakha ze-gesso. Inkinga evamile yalezi zinto ezisetshenziswayo ukuqhekeka kwesigubhu esingenalutho, amandla okuqala awafinyeleleki, ukuxazulula le nkinga, ukukhetha uhlobo lwe-cellulose kanye ne-retarder yendlela yokusebenzisa inhlanganisela, kulokhu, ukukhetha okujwayelekile kwe-methyl noma i-hydroxypropyl methyl. 30000–60000cps, inani elengezayo ngu-1.5%–2%. Phakathi, ukugxila kwe-cellulose ukugcinwa kwamanzi kanye nokugcotshwa kwe-condensation kancane.
Kodwa-ke, kulokhu ukuthembela ku-cellulose ether njengoba i-retarder ingafiki, kufanele futhi wengeze i-citric acid retarder ngemva kokusetshenziswa okuxubile ngeke kuthinte amandla okuqala.
Izinga lokugcina amanzi ngokuvamile libhekisela enanini lokulahlekelwa kwamanzi emvelo lapho ukungabikho kokumuncwa kwamanzi kwangaphandle. Uma udonga lomile, indawo engaphansi imunca amanzi futhi ukuhwamuka kwemvelo kwenza izinto zilahlekelwe amanzi ngokushesha okukhulu, futhi kuzoba nesigubhu esingenalutho kanye nokwenzeka kokuqhekeka.
Le ndlela yokusetshenziswa ukuxuba i-powder eyomile, uma ukulungiswa kwesisombululo kungabhekisela endleleni yokulungiselela isisombululo.
5, insila nodaka
Udaka lwe-thermal insulation luwuhlobo olusha lwezinto ezifakwa ngaphakathi ezindongeni ezishisayo enyakatho neChina. Kuyimpahla yodonga ehlanganiswe yi-thermal insulation material, udaka kanye ne-binder. Kule nto, i-cellulose idlala indima ebalulekile ekuhlanganiseni nasekukhuliseni amandla. Ngokuvamile, i-methyl cellulose ene-viscosity ephezulu (cishe i-10,000 CPS) ikhethiwe, futhi umthamo ngokuvamile uphakathi kuka-2 ‰ kanye no-3 ‰. Kusetshenziswa indlela yokuxuba impushana eyomile.
6, i-ejenti yokuxhumana
I-ejenti yesixhumi esibonakalayo yi-HPMC20000cps, isibophezelo sethayela singaphezu kuka-60000cps, futhi i-ejenti yesixhumi esibonakalayo isetshenziswa kakhulu njenge-thickener, engathuthukisa amandla aqinile namandla omcibisholo.
Isikhathi sokuthumela: Jun-02-2022