Ezintweni zokuhlobisa zokwakha, i-putty iyinto eyisisekelo yokulinganisa udonga kanye ne-primer, okuhlobene ngqo nekhwalithi yokwakha kanye nomphumela wokuhlobisa wezingubo ezilandelayo, amaphephadonga kanye nokunye ukuqedwa. Ukuze kuthuthukiswe ukusebenza kokwakha kanye nokusebenza kokusebenzisa i-putty, ingxenye ethilei-cellulose etherIzithasiselo zivame ukungezwa kufomula yayo. Eminyakeni yamuva nje, i-modified cellulose ether iye yaba yingxenye ebalulekile ekukhiqizweni kwe-putty ngenxa yokusebenza kwayo okuhle kakhulu.
1. Ukubuka konke kwama-ether e-cellulose aguquliwe
I-Cellulose ether iyiklasi yamakhemikhali e-polymer ancibilika emanzini noma ahlakazekayo enziwe ngokushintsha ingxenye yamaqembu e-hydroxyl e-cellulose yemvelo ngezindlela zamakhemikhali. Ama-ether e-cellulose avamile afaka i-hydroxypropyl methylcellulose (HPMC), i-methyl cellulose (MC), i-sodium carboxymethyl cellulose (CMC-Na), njll. I-cellulose ether ebizwa ngokuthi "eguquliwe" ibhekisela ekungenisweni kwezinto ezisetshenziswayo noma ukulawulwa kwesakhiwo sayo ngokusekelwe ku-cellulose ether eyisisekelo ukuthuthukisa ukuncibilika kwayo, ukugcinwa kwamanzi, izakhiwo ze-rheological, ukumelana ne-alkali, njll., ukuze kuhlangatshezwane kangcono nezidingo zokusebenza kwezinto ezakhiweni.
2. Indlela yokusebenza kwe-ether ye-cellulose eguquliwe ku-putty
I-wall putty ivame ukwakhiwa ngezinto ezingaphili njengempuphu yelayisi, usimende, i-talcum powder, njll. Lezi zinto kulula ukuzilungisa, ukuzihlukanisa, ukuziqhekeza noma ukusebenza kabi kokwakhiwa ngemva kokufaka amanzi nokuxuba. Ngemva kokufaka i-modified cellulose ether, idlala indima elandelayo ku-putty:
Ukugcinwa kwamanzi okuthuthukisiwe: I-ether ye-cellulose eguquliwe inomuncwa wamanzi oqinile kakhulu kanye nokugcinwa kwamanzi, okungavimba amanzi ngokuqinile, kuvimbele amanzi ukuthi angahwamuki ngokushesha noma amuncwe ungqimba oluyisisekelo ngesikhathi sokwakhiwa, ngaleyo ndlela kuqinisekiswe ukuthi i-putty inesikhathi esanele sokuphendula ngamanzi, kuthuthukiswe amandla okubopha futhi kuncishiswe ingozi yokuqhekeka.
Ukusebenza okuthuthukisiwe kokwakhiwa: I-Cellulose ether inganikeza i-putty izakhiwo ezinhle kakhulu zokushelela nokuklwebha, inciphise ukumelana ngesikhathi sokwakhiwa, futhi yenze ukwakhiwa kube lula futhi kube bushelelezi. Ngesikhathi esifanayo, umphumela wayo wokujiya ungathuthukisa nokugeleza kanye nokumiswa kwe-putty, futhi ivimbele izinto ukuthi zingacwili futhi zingaqhekeki.
Amandla okubopha athuthukisiwe: Kwakhiwa isakhiwo esihle senethiwekhi phakathi kwe-modified cellulose ether kanye nomkhiqizo we-cement hydration, okusiza ukuthuthukisa ukubopha okuphakathi kwe-putty kanye nesendlalelo sesisekelo futhi kuthuthukiswe ukunamathela okuphelele.
Impahla enhle kakhulu yokulwa nokugoba: Izakhiwo ezinhle ze-thixotropic zenza i-putty ingabi namathuba amaningi okugoba ngesikhathi sokwakhiwa kwe-facade, futhi ingakha ungqimba oluyisicaba noluqinile, okuthuthukisa ukusebenza kahle kokwakhiwa kanye nemiphumela yomkhiqizo oqediwe.
Ukuqina nokugcinwa okuthuthukisiwe: I-ether ye-cellulose eguquliwe ingavimbela ukuhlukaniswa, ukuna kwemvula, kanye nokuhlangana kwe-putty ngesikhathi sokuthuthwa nokugcinwa, futhi ithuthukise ukuzinza kokugcinwa komkhiqizo.
3. Izindlela zokuguqula kanye nokwenza ngcono ukusebenza
Izindlela ezivamile zokuguqula zifaka phakathi ukwethula amaqembu angenawo umoya, ukushintsha izinga lokushintsha, kanye nokulawula ukusatshalaliswa kwesisindo sama-molecule. Isibonelo, i-HPMC eguqulwe ngamanzi (njenge-HPMC-M) ingathuthukisa kakhulu ukumelana namanzi kanye noqweqwe olujiyile lwe-putty, futhi ngokulawula izimo zokusabela kwe-etherification, imikhiqizo enokushisa kwejeli ethile kanye nokuziphatha kwe-rheological ingatholakala ukuze kuhlangatshezwane nezidingo zokwakha zesimo sezulu esihlukene kanye nezimo eziyisisekelo.
Kukhona futhi imikhiqizo ekhethekile ye-cellulose ether eyenzelwe izinhlelo zokusebenza ezahlukene, njenge-HPMC yokushisa okuphezulu kwejeli efanele ukwakhiwa kokushisa okuphezulu, i-viscosity ephansi kanye nokugcinwa kwamanzi okuphezulu kwe-HPMC, njll., ukuze kuhlangatshezwane nezidingo ezahlukene zemakethe kanye nezinqubo.
4. Izinyathelo zokuqapha zokusetshenziswa
Enkambisweni yokuklama nokukhiqizwa kwefomula ye-putty, amaphuzu alandelayo kufanele aqashelwe uma usebenzisa i-modified cellulose ether:
Lawula inani lokwengeza, ngokuvamile kusuka ku-0.2% kuya ku-0.5% wesisindo sempuphu eyomile ye-putty; okuningi kakhulu kungathinta isikhathi sokomisa kanye nokusebenza kokumboza okulandelayo.
Ukuxuba ngaphambi kokomisa kufanele kube okufanayo bese kuhlanganiswa ngamanzi ukuqinisekisa ukuthi i-cellulose ether ihlakazeke ngokuphelele futhi ayinamaqhubu.
Khetha uhlobo olufanele lwe-cellulose ether ngokuya ngendawo yokwakha (njengokushisa, umswakama) kanye nohlobo lwe-putty (udonga lwangaphakathi, udonga lwangaphandle, uhlobo olungangeni manzi, njll.).
Njengesengezo esisebenzayo esisebenza kahle kakhulu,i-cellulose ether eguquliweIdlala indima ebalulekile futhi engenakuguqulwa ekukhiqizweni nasekusetshenzisweni kwe-putty. Ayigcini nje ngokuthuthukisa kakhulu ukulula kokwakhiwa kanye nezakhiwo zomzimba ze-putty, kodwa futhi inikeza ikhambi elithembekile nelisebenza kahle lokwelashwa kwesisekelo sodonga. Ngokukhuthazwa okuqhubekayo kwezakhiwo eziluhlaza kanye nemibono yokwakha emihle, isidingo se-putty esebenza kahle siyakhula, futhi amathuba okusetshenziswa kwe-modified cellulose ether emkhakheni wezinto zokwakha azoba maningi.
Isikhathi sokuthunyelwe: Meyi-15-2025