1 Isingeniso
I-Cellulose Ether (MC) isetshenziswa kabanzi embonini yezinto zokwakha futhi isetshenziswa ngenani elikhulu. Ingasetshenziswa njenge-retarder, i-ejenti yokugcinwa kwamanzi, i-perhener kanye nokunamathela. Olimini olujwayelekile oluhlanganisiwe, udaka lwangaphandle oludongeni lokufakwa kodaka, udaka oluzinamathela, i-tile-accemive, udaka olungamelana nodonga lwangaphandle, udaka olungaphandle oluhlanganisiwe, udaka lwama-gypsum, i-ejenti ye-caulking nezinye izinto, I-Cellulose Lether idlala indima ebalulekile. I-Cellulose Ether inethonya elibalulekile ekugcinweni kwamanzi, ukufunwa kwamanzi, ukubumbana, ukubuyiselwa kanye nokwakhiwa kohlelo lodaka.
Kunezinhlobo eziningi ezahlukahlukene kanye nokucaciswa kwama-cellulose afes. I-cellulose esetshenziswa ngokujwayelekile emkhakheni wezinto zokwakha ifaka i-HEC, i-HPMC, i-CMC, i-PAC, i-MHEC, njll., Ezisetshenziselwa amasistimu ahlukile. Abanye abantu benze ucwaningo ngethonya lezinhlobo ezahlukene kanye namanani ahlukile we-cellulose ether ohlelweni lodaka lukasimende. Lo mbhalo ugxile ngalesi sisekelo futhi uchaza ukuthi ungazikhetha kanjani izinhlobo ezahlukene kanye nemininingwane ye-cellulose izithambeka emikhiqizweni ehlukene yodaka.
Izici ezi-2 ezisebenzayo ze-cellulose ether ku-cunmer data
Njengokuhlanganiswa okubalulekile ku-powder owomile, i-cellulose ether inemisebenzi eminingi ngodaka. Iqhaza elibaluleke kakhulu le-cellulose ether ku-usimende kasimende ukugcina amanzi nokuqina. Ngaphezu kwalokho, ngenxa yokuxhumana kwayo nohlelo lukasimende, futhi lungadlala indima ezayo ekwenzeni umoya, ukubuyisa ukulungiselelwa, kanye nokwenza ngcono amandla ebhondi.
Ukusebenza okubaluleke kakhulu kwe-cellulose ether ku-jonnar ukugcinwa kwamanzi. I-Cellulose Ether isetshenziswa njengokuphikisana okubalulekile cishe kuyo yonke imikhiqizo yodaka, ikakhulukazi ngenxa yokugcinwa kwayo kwamanzi. Ngokuvamile ukukhuluma, ukugcinwa kwamanzi kwe-cellulose ether kuhlobene nokubonakala kwawo, inani lokungezelela nobukhulu bezinhlayiyana.
I-Celsulose Ether isetshenziswa njengoMkhulu, futhi umphumela wayo wokuqina uhlobene ne-etherization degree, usayizi wezinhlayiyana, ubuhlakani kanye nokuguqulwa kwezinga le-cellulose ether. Ngokuvamile, kuphakama izinga lokuthezeka nokutholwa kwe-cellulose ether, okuncane izinhlayiya, umphumela osobala kakhulu. Ngokushintsha izici ezingenhla ze-MC, udaka angafinyelela ukusebenza okufanelekile kokulwa nokubonakala okuhle kakhulu.
E-cellulose ether, ukwethulwa kweqembu le-ALKYL kunciphisa amandla angaphezulu kwesisombululo esinamanzi aqukethe i-cellulose ether, ukuze i-cellulose ether inomphumela wokufaka umoya ku-pollar usimende. Kwethulwa ama-bubble akwizindiza afanele kudaka kuthuthukisa ukusebenza kokwakha kodaka ngenxa ye- "ball umphumela" wama-bubble air. Ngasikhathi sinye, ukwethulwa kwama-bubble amoya kukhulisa izinga lokuphuma kodaka. Vele, inani lokufakwa komoya lidinga ukulawulwa. Ukungena komoya okuningi kuzoba nomthelela ongemuhle ngamandla kadaka, ngoba kungenziwa ama-bubble amoyeni alimazayo.
2.1 I-cellulose ether izobambezela inqubo ye-hydration ka usimende, ngaleyo ndlela yehlise umoya kanye nokwenza okuqinisayo kuka usimende, futhi kunwebe isikhathi sokuvula sikadaka ngokufanele, kepha lo mphumela awulungele udaka ezifundeni ezibandayo. Lapho ukhetha i-cellulose ether, umkhiqizo ofanele kufanele akhethwe ngokwesimo esithile. Umphumela wokugcina kabusha we-cellulose ether unwetshwa kakhulu ngokwanda kweziqu zawo zokuthezeka, iziqu zokuguqulwa kanye nokuvunywa.
Ngaphezu kwalokho, i-cellulose ether, njengento ende ye-polymer, ingathuthukisa ukusebenza kwe-bonding nge-substrate ngemuva kokungezwa ohlelweni lukasimende ngaphansi kokulungiswa komswakama we-slurry.
2.2 Izakhiwo ze-cellulose ether ngodaka ngokuyinhloko zifaka phakathi: Ukugcinwa kwamanzi, ukunwebeka isikhathi, ukuthuthukisa umoya kanye nokwenza ngcono izici ezingenhla, kuboniswa ezimweni ze-MC uqobo, okungukuthi: I-Viscosity, ukuqina, okuqukethwe kwezithako ezisebenzayo (inani lokungezelelwa), isilinganiso sokungena esikhundleni salo kanye nokuguqulwa kwalo, ukuguqulwa kwezinga, okuqukethwe kwezinto eziyingozi, lapho ukhetha i-MC, i-cellulose ether ngezimpawu ezifanele kufanele kukhethwe ngokuya ngezidingo ezithile zomkhiqizo othize we-durtar ukuze usebenze.
Izici ezi-3 ze-cellulose ether
Ngokuvamile, imiyalo yomkhiqizo enikezwe ngabakhiqizi be-cellulose ether izofaka izinkomba ezilandelayo: ukubukeka, okuqukethwe okusebenzayo), okuqukethwe okusebenzayo, izindawo eziwusizo, izinhlaka zokubuyisana, izinkomba zokusebenza zingakhombisa Ingxenye yendima ye-cellulose ether, kepha uma uqhathanisa futhi ukhetha i-cellulose ether, ezinye izici ezinjengokwakheka kwamakhemikhali, iziqu zokuguqulwa, okuqukethwe kwe-ether, nenani le-NACL kufanele futhi kuhlolwe.
3.1 Ukubonakaliswa kwe-cellulose ether
I-viscosity ye-cellulose ether ithinta ukugcinwa kwayo kwamanzi, ukuqina, ukubuyiselwa emuva nezinye izici. Ngakho-ke, kuyinkomba ebalulekile yokuhlola nokukhetha i-cellulose ether.
Ngaphambi kokuxoxa ngokubonakala kwe-cellulose ether, kufanele kuqashelwe ukuthi kunezindlela ezine ezivame ukusetshenziswa zokuhlola ukubonakala kwe-cellulose ether: iBrookfield, i-Höppler, ne-Viscomer ejikelezayo. Imishini, Ukuhlushwa kwesixazululo kanye nemvelo yokuhlola esetshenziswa yizindlela ezine zihlukile, ngakho-ke imiphumela yesisombululo esifanayo se-MC esihlolwe ngezindlela ezine ihlukile kakhulu. Ngisho nangesixazululo esifanayo, usebenzisa indlela efanayo, ukuhlola ngaphansi kwezimo ezahlukahlukene zezemvelo, i-viscosity
Imiphumela ibuye ihluka. Ngakho-ke, lapho echaza ukubonwa kwe-ether ye-cellulose, kuyadingeka ukukhombisa ukuthi iyiphi indlela esetshenziselwa ukuhlolwa, ukugxila kwesixazululo, i-rotor, isivinini sokujikeleza, izinga lokuhlola lokuhlola kanye neminye imibandela yemvelo. Inani le-viscosity libalulekile. Akunangqondo ukumane usho ukuthi "Kuyini ukubonakala kwe-MC ethile".
3.2 ukuqina komkhiqizo kwe-cellulose ether
I-Cellulose Tathers iyaziwa ukuthi ingathathwa ukuhlaselwa isikhunta se-cellulosic. Lapho ukhunta lukhulisa i-cellulose ether, kuqala ukuhlasela iyunithi ye-glucose engafakwanga e-cellulose ether. Njengengxenye eqondile, uma iyunithi le-glucose libhujiswa, lonke uchungechunge lwamangqamuzana luphukile, futhi i-viscosity yomkhiqizo izokwehla kakhulu. Ngemuva kokuthi iyunithi le-glucose linethelithe, isikhunta ngeke silimaze kalula iketanga lamangqamuzana. Ngakho-ke, kukhuphuka isilinganiso sokufakwa esikhundleni se-etherification (DS VALULEKILE) ye-cellulose ether, ukuqina kwalo kuzoba.
3.3 Okuqukethwe okusebenzayo kwezithako ze-cellulose ether
Lapho kukhuphuka okuqukethwe kwezithako ezisebenzayo eCellulose Ether, kukhuphuka ukusebenza kwezindleko zomkhiqizo, ukuze imiphumela engcono ingatholakala ngomthamo ofanayo. Isithako esisebenzayo eCellulose Ether yi-cellulose ether molecule, okuyinto e-organic. Ngakho-ke, lapho uhlola okuqukethwe okusebenzayo kwezidakamizwa ze-cellulose ether, kungabonakala ngokungaqondile ngenani lomlotha ngemuva kwe-carvula.
3.4 Okuqukethwe kwe-nacl e-cellulose ether
I-NACL ingumkhiqizo ongenakugwemeka ekukhiqizweni kwe-cellulose ether, okudinga ukususwa ngokugeza okuningi, kanye nezikhathi ezithe xaxa zokugeza, kusele ama-nacl amancane. I-NACL iyingozi eyaziwayo ekubhujisweni kwemigoqo yensimbi kanye ne-wire wire mesh. Ngakho-ke, yize ukwelashwa kwendle kokugeza i-NACL izikhathi eziningi kungakhuphula izindleko, lapho ngikhetha imikhiqizo ye-MC, kufanele sizame konke okusemandleni ukwenza imikhiqizo enokuqukethwe kwe-nacl okuphansi.
Izimiso ezi-4 zokukhetha i-cellulose ether ngemikhiqizo ehlukene yodaka
Lapho ukhetha i-cellulose ether yemikhiqizo yodaka, okokuqala, ngokusho kwencazelo yencwajana yomkhiqizo, khetha ukubonakala kwayo kokusebenza, okufana nokutholwa kokuthembela esikhundleni, okuqukethwe okusebenzayo, okuqukethwe kwe-nacl, njll.) Izici ezisebenzayo nokukhethwa izimiso
4.1 uhlelo oluncanyana lwe-plaster
Ukuthatha udaka lokufaka olimini oluncane olwalulisayo njengesibonelo, ngoba udaka oluphawula ngqo uthintana nemvelo yangaphandle, ingaphezulu lilahlekelwa amanzi ngokushesha, ngakho-ke kudingeka inani eliphakeme lokugcina amanzi. Ikakhulu ngesikhathi sokwakha ehlobo, kuyadingeka ukuthi udaka lukwazi ukugcina umswakama ngokushisa okuphezulu. Kuyadingeka ukuthi ukhethe i-MC ngenani eliphakeme lokugcina amanzi, elingabhekwa njengempumelelo ngezici ezintathu: I-Viscosity, usayizi wezinhlayiyana, kanye nenani lezengezo. Ngokuvamile, ngaphansi kwezimo ezifanayo, khetha i-MC nge-viscosity ephezulu, futhi ucubungule izidingo zokusebenza, i-viscosity akufanele ibe phezulu kakhulu. Ngakho-ke, i-MC ekhethiwe kufanele ibe nezinga eliphakeme lokugcina amanzi kanye nokubonakaliswa okuphansi. Phakathi kwemikhiqizo ye-MC, i-MH60001P6 njll. Kunganconywa ngohlelo lokufaka okunamathela kokufakwa kokulungiswa okuncane.
4.2 Udaka Osuselwa Kukhonkolo Olusiwe
Udaka oluphamba ludinga ukufana okuhle kodaka, futhi kulula ukufaka khona ngokulinganayo lapho kulungiswa. Ngasikhathi sinye, kudinga ukusebenza okuhle okulwa nokuvimbela, umthamo ophezulu wokupompa, uketshezi nokusebenza. Ngakho-ke, i-MC ene-viscosity ephansi, ukusakazwa okusheshayo kanye nokuthuthukiswa kokungaguquguquki (izinhlayiya ezincane) ku-celter datar kukhethiwe.
Ekwakhiweni kweTile Adgesive, ukuze kuqinisekiswe ukuphepha nokusebenza kahle okuphezulu, kudingeka ikakhulukazi ukuthi udaka abe nesikhathi eside sokuvula nokusebenza okungcono kokulwa nokudla okungcono phakathi kwe-substrate kanye nethayili . Ngakho-ke, izinamathiseli ze-tile zinezidingo eziphakeme kakhulu ze-MC. Kodwa-ke, i-MC ngokuvamile inokuqukethwe okuphezulu kakhulu kuma-tile anamathela. Lapho ukhetha i-MC, ukuze uhlangabezane nesidingo sesikhathi eside sokuvula, i-MC uqobo idinga ukuba nezinga eliphakeme lokugcina amanzi, futhi izinga lokugcina amanzi lidinga ukubonakala okufanele, inani lokungezwa nobukhulu bezinhlayiyana. Ukuze uhlangabezane nokusebenza okuhle oku-anti-sliding, umphumela wokuqina we-MC muhle, ukuze udaka lube namandla okugeleza okuqinile, futhi ukusebenza okuqinile kunezidingo ezithile zokuvuleka, iziqu ze-etherification kanye nosayizi wezinhlayiyana.
4.4 isilondolozi esisezingeni eliphakeme
Udaka oluzimisele lunezidingo eziphakeme ekusebenzeni kwezinga lodaka, ngakho-ke kufanelekile ukukhetha imikhiqizo ephansi ye-cellulose ether. Njengoba ukuzilibazisa kudinga ukuthi udaka olushukumisayo olushukumisayo lungafakwa ngokuzenzakalelayo emhlabathini, uketshezi nokuncibilika kuyadingeka, ngakho-ke isilinganiso samanzi sibe sikhulu. Ukuze kuvinjelwe ukopha, i-MC iyadingeka ukulawula ukugcinwa kwamanzi kobuso futhi inikeze i-viscosity ukuvikela ukuqunjelwa.
4.5 MASONY DORONAR
Ngoba udaka lwe-masonry ngqo uthintana nobuso be-masonry, ngokuvamile ukwakhiwa okuyisisekelo. Udaka luyadingeka ukuthi lusebenze kakhulu nokugcinwa kwamanzi, futhi lungaqinisekisa futhi amandla okubopha nobumbano, athuthukise ukuwenza, futhi andise ukusebenza kahle. Ngakho-ke, i-MC ekhethiwe kufanele ikwazi ukusiza udaka ukuze athuthukise ukusebenza okungenhla, futhi ukubonakala kwe-cellulose ether akufanele kube phezulu kakhulu.
4.6 I-Slurry yokufakelwa
Njengoba i-slurry yokufakelwa kwe-thermal isetshenziswa kakhulu ngesandla, kuyadingeka ukuthi i-MC ekhethiwe inganikeza ukusebenziseka okuhle kodaka, ukusebenziseka okuhle nokugcinwa kwamanzi okuhle. I-MC kufanele futhi ibe nezimpawu zokuvuleka okuphezulu nokungena komoya okuphezulu.
5 Isiphetho
Imisebenzi ye-cellulose ether ku-Cement Jature ingukugcinwa kwamanzi, ukuqina, ukufakwa komoya, ukubuyiselwa emuva kanye nokwenza ngcono amandla amandla e-tensile, njll.
Isikhathi sePosi: Jan-30-2023