I-adhesive-based ceramic tile adhesive okwamanje iwukusetshenziswa okukhulu kakhulu kodaka olukhethekile lokuxuba okomile, okuwuhlobo lukasimende njengento eyinhloko kasimende futhi yengezwe ngokuhlukaniswa kweqoqo, i-ejenti yokugcina amanzi, i-ejenti yamandla yokuqala, i-latex powder nezinye izinto eziphilayo noma ezingaphili. izingxube.Imvamisa esetshenziswa kuphela ngokuxutshwa kwamanzi, uma kuqhathaniswa nodaka olujwayelekile lukasimende, ingathuthukisa kakhulu amandla okubopha phakathi kwezinto zokuqeda kanye nesisekelo sezinto, ine-anti-slip enhle futhi inokumelana okuhle kwamanzi, ukumelana nokushisa kanye nezinzuzo zomjikelezo wokuqandisa, ezisetshenziswa kakhulu. ukunamathisela ama-tile odonga angaphakathi nangaphandle, amathayili aphansi nezinye izinto zokuhlobisa, Isetshenziswa kabanzi ekuhlobiseni izindonga, phansi, izindlu zangasese, amakhishi nezinye izakhiwo.Kuyinto esetshenziswa kakhulu i-ceramic tile bonding material.
Ngokuvamile lapho sahlulela ukusebenza kwe-adhesive tile ye-ceramic, ngaphezu kokunaka ukusebenza kwayo kokusebenza, ikhono lokulwa nokuslayida, kodwa futhi unake amandla ayo omshini kanye nesikhathi esivulekile.I-cellulose ether ku-ceramic tile adhesive ngaphezu kokuthinta izakhiwo ze-rheological ze-porcelain glue, njengokusebenza okushelelayo, isimo sommese wokunamathela, kodwa futhi nasezicini zemishini ye-ceramic tile adhesive inethonya elinamandla.
1. Vulaisikhathi
Lapho impushana yerabha ne-cellulose ether zikhona odakeni olumanzi, amanye amamodeli edatha abonisa ukuthi impushana yenjoloba inamandla anamandla e-kinetic okunamathela emikhiqizweni kasimende, futhi i-cellulose ether ikhona kakhulu oketshezini lwe-gap, oluthinta i-viscosity kanye nesikhathi sokusetha sikasimende. Okuningi.Ukungezwani okungaphezulu kwe-cellulose ether kukhulu kunaleyo yempushana yerabha, futhi ukunothiswa kwe-cellulose ether eyengeziwe esixhunyweni sodaka kunenzuzo ekwakhekeni kwamabhondi e-hydrogen phakathi kwendiza eyisisekelo ne-cellulose ether.
Ukuhwamuka komswakama odakeni olumanzi, udaka, i-cellulose ether endaweni yokucebisa okungaphezulu, imizuzu emi-5 kungakha ulwelwesi ebusweni bodaka, kuzonciphisa izinga lokuhwamuka kokulandela, ngamanzi engeziwe avela engxenyeni ewudaka ewudaka. ukuthuthela ungqimba nosimende mncane, amaphuzu avulekile ingxenye zincibilike lapho ukwakheka kokuqala ulwelwesi, ukufuduka kwamanzi kungaletha ukunothisa okwengeziwe cellulose ether odakeni phezu.
Ukwakhiwa kwefilimu ye-cellulose ether ebusweni bodaka kunethonya elikhulu kuzakhiwo zodaka:
Okokuqala, ifilimu eyakhiwe incane kakhulu, izohlakazwa kabili, ayikwazi ukukhawulela ukuhwamuka kwamanzi, ukunciphisa amandla.
Okwesibili, ukwakheka kwefilimu kukhulu kakhulu, i-cellulose ether ekugxilweni koketshezi lwe-mortar gap kuphezulu, i-viscosity, lapho ukunamathisela kwe-ceramic tile akulula ukuphula ubuso befilimu.
Kungabonakala ukuthi ifilimu eyenza ukusebenza kwe-cellulose ether inethonya elikhulu ngesikhathi sokuvula.Uhlobo lwe-cellulose ether (i-HPMC, i-HEMC, i-MC, njll.) kanye nezinga le-etherification (izinga lokushintsha) lithinta ngokuqondile ukusebenza kwefilimu eyenza i-cellulose ether, ebulukhunini nasekuqineni kwefilimu.
2, ukudweba amandla
I-Cellulose ether ayigcini nje ngokunikeza udaka nazo zonke izakhiwo ezinenzuzo ezingenhla, kodwa futhi ibambezela i-hydration kinetics kasimende.Lo mphumela obambezelekile ubangelwa ikakhulukazi ukukhanyiswa kwama-molecule e-cellulose ether ezigabeni ezihlukahlukene zamaminerali ohlelweni lukasimende olunikezwa amanzi, kodwa ngokuvamile kuvunyelwana ngokuthi ama-molecule e-cellulose ether akhangwa kakhulu emikhiqizweni ye-hydration efana ne-CSH ne-calcium hydroxide, futhi awavamile ukukhangiswa isigaba sokuqala samaminerali se-clinker.Ngaphezu kwalokho, i-cellulose ether inciphisa ama-ion (Ca2+, SO42-,…) ngenxa yokwanda kwe-viscosity yesisombululo se-pore.Umsebenzi we-pore solution, ophinde ubambezele inqubo yokukhipha amanzi.
I-Viscosity ingenye ipharamitha ebalulekile, emele izakhiwo zamakhemikhali ze-cellulose ether.Njengoba kushiwo ngenhla, i-viscosity ithinta kakhulu amandla okugcina amanzi, futhi iphinde ibe nomthelela omkhulu ekusebenzeni kodaka olusha.Kodwa-ke, ucwaningo lokuhlola lwathola ukuthi i-viscosity ye-cellulose ether yayingenawo umthelela ku-hydration kinetics kasimende.Isisindo samangqamuzana asinawo umthelela omncane ku-hydration, futhi umehluko omkhulu phakathi kwesisindo samangqamuzana ahlukene yi-10min kuphela.Ngakho-ke, isisindo samangqamuzana akusona ipharamitha eyinhloko yokulawula ukugeleza kukasimende.
"I-cellulose ether emikhiqizweni yosimende esekelwe kusimende eyomile ekusetshenzisweni" ibonise ngokucacile ukuthi ukubambezeleka kwe-cellulose ether kuncike ekwakhekeni kwamakhemikhali.Ukuthambekela okuvamile ukuthi ku-MHEC, izinga eliphezulu le-methylation, liba mncane umphumela wokuvinjelwa kwe-cellulose ether.Ukwengeza, ukufaka esikhundleni se-hydrophilic (njengokufaka esikhundleni se-HEC) kunomphumela onamandla wokubuyisela emuva kunokushintshwa kwe-hydrophobic (njengokufaka esikhundleni se-MH, i-MHEC ne-MHPC).Umthelela wokuhlehlisa we-cellulose ether uthintwa ikakhulukazi amapharamitha amabili ohlobo nenani lamaqembu afakwe esikhundleni.
Ukuhlola kwethu okuhlelekile kuphinde kwathola ukuthi okuqukethwe kwezinye izinto kudlala indima ebalulekile kumandla wemishini wokunamathela kwethayela le-ceramic.Sihlole ukusebenza kwe-HPMC ngamadigri ahlukene okushintsha endaweni yokunamathela kuthayela we-ceramic, futhi sahlola umthelela we-cellulose ether equkethe amaqembu ahlukene ngaphansi kwezimo ezihlukene zokuphulukisa ezicini zemishini zokunamathela kwethayela le-ceramic.Ithonya lokuqukethwe kwe-DS ne-MS emandleni omdwebo we-ceramic tile adhesive ekamelweni lokushisa.
I-HPMC iyinhlanganisela ye-ether, ngakho-ke ukuze kuhlanganiswe lezi zibalo ezimbili, ku-HPMC, kudingeka kube khona izinga elithile lokuhlinzeka, ukuze kuqinisekiswe ukunyibilika kwayo kwamanzi nokudluliswa kwawo, siyazi ukuthi okuqukethwe kwezinye izingxenye kuphinde kunqume izinga lokushisa lejeli le-HPMC. , okuwukunquma ukusetshenziswa kwemvelo ye-HPMC, Ngale ndlela, okuqukethwe kweqembu le-HPMC kufakwe kuhlaka.Kulolu hlu, indlela yokuhlanganisa i-methoxy ne-hydroxypropoxy ukuze kuzuzwe umphumela omuhle kakhulu okuqukethwe kocwaningo lwethu.Kububanzi obuthile, ukwanda kokuqukethwe kwe-methoxy kuzoholela ekuthambekeni okuya phansi kwamandla okudweba, kanti ukwanda kokuqukethwe kwe-hydroxypropoxy kuzoholela ekukhuphukeni kwamandla okudweba.Kunomphumela ofanayo ngesikhathi esivulekile.
Isikhathi sokuthumela: Dec-20-2021