Ezakhiweni zokuhlobisa izakhiwo, i-putty iyinto eyisisekelo yokulinganisa udonga kanye ne-primer, ehlobene ngokuqondile nekhwalithi yokwakha kanye nomphumela wokuhlobisa wezingubo ezilandelayo, amaphephadonga nokunye ukuqedwa. Ukuze kuthuthukiswe ukusebenza kokwakhiwa nokusebenzisa ukusebenza kwe-putty, ingxenye ethile yei-cellulose etherizithasiselo zivame ukungezwa kufomula yayo. Eminyakeni yamuva, i-cellulose ether eshintshiwe kancane kancane isiyingxenye ebalulekile ekukhiqizeni i-putty ngenxa yokusebenza kwayo okuhle kakhulu.
1. Uhlolojikelele lwama-ether e-cellulose ashintshiwe
I-Cellulose ether iyikilasi lezinhlanganisela ze-polymer ezincibilika emanzini noma ezihlakazekayo ezenziwe ngokufaka i-etherifying kanye nokuguqula ingxenye yamaqembu e-hydroxyl ye-cellulose yemvelo ngezindlela zamakhemikhali. I-cellulose ethers evamile ihlanganisa i-hydroxypropyl methylcellulose (HPMC), i-methyl cellulose (MC), i-sodium carboxymethyl cellulose (CMC-Na), njll. Okubizwa ngokuthi "i-modified" cellulose ether ibhekisela ekusungulweni kwezinto ezisebenzayo noma ukulawulwa kwesakhiwo sayo ngesisekelo sesisekelo se-cellulose ether, ukuphikiswa kwe-sodium, njll. ukuze kuhlangatshezwane kangcono nezidingo zokusebenza kwempahla ezinhlelweni zokwakha.
2. Indlela yokusebenza ye-ether ye-cellulose eguquliwe ku-putty
I-wall putty ivamise ukwakhiwa ngezinto ezingaphili ezifana nempushana ye-lime, usimende, impushana ye-talcum, njll. Lezi zinto zilula ukushona phansi, ukudiliza, ukuqhekeka noma ukwakhiwa okungekuhle ngemuva kokwengeza amanzi nokunyakazisa. Ngemuva kokungeza i-cellulose ether eguquliwe, idlala ikakhulukazi izindima ezilandelayo ku-putty:
Ukugcinwa kwamanzi okuthuthukisiwe: I-ether ye-cellulose eguquliwe inokumuncwa kwamanzi okunamandla kakhulu kanye nokugcinwa kwamanzi, okungakhiya amanzi ngokuqinile, kuvimbele amanzi ukuthi angahwamuki ngokushesha noma amuncwe ungqimba oluyisisekelo ngesikhathi sokwakhiwa, ngaleyo ndlela kuqinisekiswe ukuthi i-putty inesikhathi esanele sokusabela kwe-hydration, ithuthukisa amandla okubopha futhi inciphise ingozi yokuqhekeka.
Ukusebenza kokwakhiwa okuthuthukisiwe: I-cellulose ether inganikeza i-putty ukushelela okuhle kakhulu kanye nezindawo zokukhuhla, inciphise ukumelana ngesikhathi sokwakha, futhi yenze ukwakha kube lula futhi kube bushelelezi. Ngasikhathi sinye, umphumela wawo wokuqina ungabuye uthuthukise i-fluidity nokumiswa kwe-putty, futhi uvimbele izinto ukuthi zingacwili kanye ne-delamination.
Amandla okubopha athuthukisiwe: Isakhiwo esihle senethiwekhi sakhiwa phakathi kwe-ether ye-cellulose eshintshiwe kanye nomkhiqizo we-cement hydration, okusiza ukuthuthukisa ukuhlangana okuhlangene phakathi kwe-putty nesendlalelo sesisekelo futhi kuthuthukise ukunamathela okuphelele.
Isakhiwo esihle kakhulu sokulwa nokucwila: Izakhiwo ezinhle ze-thixotropic zenza i-putty ibe mancane amathuba okuthi ihlehle ngesikhathi sokwakhiwa kwe-facade, futhi ingakha uqweqwe oluyisicaba, oluwugqinsi olufanayo, oluthuthukisa ukusebenza kahle kokwakhiwa kanye nemiphumela yomkhiqizo ophelile.
Ukuzinza nokugcinwa okuthuthukisiwe: I-ether ye-cellulose eguquliwe ingavimbela ukuhlukaniswa, imvula, kanye ne-agglomeration ye-putty ngesikhathi sokuthutha nokugcinwa, futhi ithuthukise ukugcinwa kokuqina komkhiqizo.
3. Izindlela zokushintsha nokwenza ngcono ukusebenza
Izindlela zokuguqula ezivamile zihlanganisa ukwethula amaqembu e-hydrophobic, ukushintsha izinga lokushintsha, nokulawula ukusatshalaliswa kwesisindo samangqamuzana. Isibonelo, i-HPMC eguquliwe nge-hydrophobically (njenge-HPMC-M) ingaqhubeka nokuthuthukisa ukumelana namanzi nokunamathela okuminyene kwe-putty, futhi ngokulawula izimo zokusabela kwe-etherification, imikhiqizo enezinga lokushisa elithile lejeli nokuziphatha kwe-rheological ingatholakala ukuze kuhlangatshezwane nezidingo zokwakha izimo zezulu ezahlukene kanye nezimo eziyisisekelo.
Kukhona nemikhiqizo ekhethekile ye-cellulose ether eyenzelwe izinhlelo zokusebenza ezahlukene, njengezinga lokushisa lejeli eliphezulu i-HPMC elifanele ukwakhiwa kwezinga lokushisa eliphezulu, i-viscosity ephansi kanye nokugcinwa kwamanzi okuphezulu kwe-HPMC, njll., ukuhlangabezana nezidingo ezahlukene zemakethe nezinqubo.
4. Izinyathelo zokuphepha zokusetshenziswa
Enqubweni yokwakhiwa nokukhiqizwa kwefomula ye-putty, amaphuzu alandelayo kufanele aqashelwe uma kusetshenziswa i-ether ye-cellulose eguquliwe:
Lawula inani lokwengeza, ngokuvamile i-0.2% kuya ku-0.5% yesisindo se-putty eyomile; kakhulu kungase kuthinte isikhathi sokumisa kanye nokusebenza kokunamathela okulandelayo.
Ukuxuba kwangaphambi kokoma kufanele kufane bese kuxutshwa ngamanzi ukuze kuqinisekiswe ukuthi i-cellulose ether ihlakazeke ngokuphelele futhi ayinazo izigaxa.
Khetha uhlobo olufanele lwe-cellulose ether ngokuya ngendawo yokwakha (njengezinga lokushisa, umswakama) kanye nohlobo lwe-putty (udonga lwangaphakathi, udonga lwangaphandle, uhlobo olungangeni manzi, njll.).
Njengesengezo esisebenzayo esisebenza kahle kakhulu,i-cellulose ether eshintshiweidlala indima engenakuthathelwa indawo futhi ebalulekile ekukhiqizeni nasekusetshenzisweni kwe-putty. Akukona nje kuphela ukuthuthukisa ngokuphawulekayo lula ukwakhiwa kanye nezakhiwo ezibonakalayo ze-putty, kodwa futhi inikeza isisombululo esinokwethenjelwa nesisebenza kahle sokwelashwa kwesisekelo sodonga. Ngokukhuthazwa okuqhubekayo kwesakhiwo esiluhlaza kanye nemiqondo emihle yokwakha, isidingo se-putty esebenza kahle siyakhula, futhi amathemba okusetshenziswa kwe-cellulose ether eguquliwe emkhakheni wezinto zokwakha azoba banzi.
Isikhathi sokuthumela: May-15-2025