(1) Uhlolojikelele lwe-HPMC
IHydroxypropyl Methyl Cellulose (HPMC) iyi-ether engeyona ionic cellulose evame ukusetshenziswa ezintweni zokwakha. I-HPMC inokuncibilika okuhle kakhulu kwamanzi, ukugcinwa kwamanzi, izakhiwo zokwakha ifilimu nokuzinza, futhi isetshenziswa kakhulu ezintweni zokwakha ezifana nokunamathiswa kwamathayela, impuphu ephuthiwe, ibhodi legypsum nodaka olomile. Ezinamathelayo zikasimende ezisekelwe kusimende, i-HPMC idlala indima ebalulekile, futhi indima yayo ibonakala ikakhulukazi ekuthuthukiseni ukusebenza kokwakha, ukwandisa amandla okubopha, ukunweba isikhathi esivulekile, nokwandisa izakhiwo zokulwa nokushelela.
(2) Indima ye-HPMC ekunamathelweni kwamathayela asekelwe kusimende
1. Ukwenza ngcono ukusebenza kwesakhiwo
I-HPMC ingathuthukisa ngempumelelo ukusebenza kokwakhiwa kwezinamathiselo zamathayela asekelwe kusimende, okubonakala ngokucacile kulezi zici ezilandelayo:
Ukwandisa i-rheology: I-HPMC inyusa i-viscosity ye-adhesive ngokusebenzisa umphumela wayo wokuqina, okwenza kube lula ukusabalalisa nokulungisa, ngaleyo ndlela ithuthukise ukunethezeka kokwakhiwa. I-rheology efanele iqinisekisa ukuthi i-adhesive ingakha isendlalelo sokubopha umfaniswano odongeni noma phansi, okubaluleke kakhulu ekubekweni kwama-tile amakhulu.
Thuthukisa ukugcinwa kwamanzi: I-HPMC inamandla okugcina amanzi amahle kakhulu futhi ingakhiya amanzi ku-adhesive ukuvimbela amanzi ukuthi ahwamuke ngokushesha okukhulu. Lokhu akusizi nje ukuthi usimende ugcwalise ngokugcwele amanzi, kodwa futhi kwandisa isikhathi esivulekile sokunamathela, okuvumela abasebenzi bokwakha isikhathi esengeziwe sokulungisa nokulungisa isikhundla samatayela.
Thuthukisa i-anti-slippage: Uma ubeka amathayela, ikakhulukazi amathayela amakhulu ezindongeni eziqondile, inkinga yokushelela kwamathayili ivamise ukuhlupha izisebenzi zokwakha. I-HPMC inyusa i-viscosity ye-adhesive, ivumela amathayela ukuthi athole ngokushesha amandla athile okubopha ngemuva kokufakwa, ngaleyo ndlela avimbele ngempumelelo ukushelela.
2. Thuthukisa amandla esibopho
I-HPMC ingathuthukisa kakhulu amandla ebhondi okunamathelayo okusekelwe kusimende ngoba ingadlala indima kulezi zici ezilandelayo:
Thuthukisa ukugeleza kukasimende: Indawo yokugcina amanzi ye-HPMC ingagcina umswakama ku-adhesive futhi ikhuthaze ukugeleza kukasimende okuphelele. Isakhiwo samatshe usimende esakhiwe yi-hydration egcwele ye-cement siminyene, ngaleyo ndlela sithuthukisa amandla esibopho se-adhesive.
Umphumela wokusebenzelana othuthukisiwe: I-HPMC ingenza ifilimu elincane le-polymer phakathi kwe-adhesive nethayela. Le filimu inokunamathela okuhle nokuguquguquka, okungathuthukisa ngokuphumelelayo amandla okuxhumana phakathi kokunamathela nesisekelo se-tile futhi kuthuthukise amandla okubopha jikelele.
3. Isikhathi sokuvula esinwetshiwe
Isikhathi esivulekile sibhekisela esikhathini kusukela ekusetshenzisweni kwe-adhesive kuya ekubekweni kwe-tile. Ukugcinwa kwamanzi kanye nezakhiwo zokulawula i-rheological ze-HPMC zinganweba isikhathi esivulekile sokunamathela kuthayela okusekelwe kusimende, okubonakaliswa ikakhulukazi kulezi zici ezilandelayo:
Ukuhwamuka kwamanzi okubambezelekile: Ifilimu ye-polymer eyakhiwe yi-HPMC inganciphisa ukuhwamuka kwamanzi ku-adhesive, ukuze okunamathelayo kukwazi ukugcina ukusebenza isikhathi eside.
Gcina uswakeme: Ngenxa ye-hygroscopicity ye-HPMC, okunamathelayo kungahlala kunomswakama isikhathi eside, ngaleyo ndlela kunwebe iwindi lokusebenza futhi kwandise ukulungiswa kanye nesikhathi sokubeka sabasebenzi bokwakha.
4. Ukwenyuka kokusebenza kokulwa nokushelela
Ukusebenza kwe-anti-slip kubhekisela ekwandeni kwama-tile ekususweni ngenxa yesisindo sawo noma amandla angaphandle lapho esanda kubekwa. Ukuqina kanye nemiphumela ye-gelling ye-HPMC ingathuthukisa izakhiwo zokulwa nokushelela kwezinamatheliso zamathayili asekelwe usimende kulezi zici ezilandelayo:
Ukuthuthukisa ukunamathela kokuqala: I-HPMC ithuthukisa ukunamathela kokuqala kwe-adhesive, ivumela amathayili ukuthi athole ngokushesha ukuma okuzinzile ngemva kokubeka nokunciphisa ukuhamba.
Ukwakha isakhiwo esinwebekayo: Isakhiwo senethiwekhi esakhiwe yi-HPMC enamathelayo singanikeza amandla athile okutakula okunwebekayo, adlala indima ebalulekile ekulweni nokushelela kwethayela.
(3) Inani le-HPMC elisetshenziswa kumathayela asekelwe kusimende
Inani le-HPMC elengeziwe livamise ukunqunywa ngokwezidingo ezihlukene zohlelo lokusebenza, ngokuvamile phakathi kuka-0.1% no-0.5%. Kuzinhlelo zokusebenza zangempela, kuyadingeka ukulungisa inani ngokuya ngefomula ethile ye-adhesive, izimo zokwakha, kanye nokucaciswa kwamathayili ukuze kuzuzwe umphumela omuhle kakhulu. Ukwengeza i-HPMC encane kakhulu kuzoholela ekuhlanganeni okubi, kuyilapho ukungeza kakhulu kungase kwenyuse izindleko futhi kuthinte ukusebenza kokwakha.
(4) Ukukhethwa nokuhambisana kwe-HPMC
Ukukhetha ukucaciswa okufanele kwe-HPMC kumathayela asekelwe kusimende kubalulekile ekusebenzeni komkhiqizo. Amapharamitha afana ne-HPMC viscosity, i-substitution degree kanye nosayizi wezinhlayiyana kuzothinta umphumela wawo wokugcina. Ngokuvamile, ukuphakama kwe-viscosity ye-HPMC, ukugcinwa kwayo kwamanzi kangcono kanye nomphumela wokujiya, kodwa isikhathi sokuhlakazeka sizokhuphuka ngokuqhathaniswa. Ngakho-ke, kuyadingeka ukukhetha imininingwane efanele ngokuya ngezidingo zangempela.
I-HPMC idinga ukufaniswa ngokunengqondo nezinye izithasiselo ukuze kuzuzwe ukusebenza kahle. Isibonelo, inhlanganisela nezithasiselo ezifana ne-ethylene glycol, i-propylene glycol namanye ama-cellulose ether ingathuthukisa ukusebenza kokwakhiwa nokuqina kwe-adhesive.
(5) Ukuthambekela kokuthuthukiswa kwe-HPMC kuma-adhesives asekelwe kusimende
Ngokuthuthuka okuqhubekayo kobuchwepheshe bezinto zokwakha, izidingo zokusebenza kwezinamatheliso ezisekelwe kusimende nazo ziya ngokuya ziba phezulu. Njengesinye sezengezo ezibalulekile, ukuthambekela kokuthuthuka kwe-HPMC kuboniswa ikakhulukazi kulezi zici ezilandelayo:
Ucwaningo nokuthuthukiswa kwe-HPMC ehambisana nemvelo: Ngokuthuthukiswa kokuqwashisa ngemvelo, ucwaningo nokuthuthukiswa kwezinhlanganisela eziphilayo eziphansi (VOC) kanye ne-HPMC eyonakalisayo ehambisana nemvelo sekuyinkambiso.
Ukuthuthukiswa kwe-HPMC esebenzayo: Ukuze kuhlangatshezwane nezidingo ezahlukene zokwakha, imikhiqizo ye-HPMC enezici ezithile (njenge-anti-mildew, antibacterial, ukugcinwa kombala, njll.) ithuthukiswa ukuze kuthuthukiswe ukusebenza okuphelele kokunamathela kwamathayela.
Ukusetshenziswa kwe-HPMC ehlakaniphile: I-Intelligent HPMC ingakwazi ukulungisa ngokuzenzakalelayo ukusebenza kwayo ngokuvumelana nezimo zemvelo (ezifana nezinga lokushisa, umswakama, njll.), ukuze izinamathiselo zamathayili ezisekelwe kusimende zikwazi ukugcina ukusebenza okuhle kakhulu ngaphansi kwezimo ezihlukahlukene zokwakha.
Ukusetshenziswa kwe-HPMC kumathayela asekelwe kusimende kuthuthukisa kakhulu ukusebenza kwezinamathiselo, okuhlanganisa ukuthuthukisa ukusebenza kokwakhiwa, ukukhulisa amandla okubopha, ukunweba isikhathi esivulekile nokwandisa izakhiwo zokulwa nokushelela. Ukugcinwa kwawo kwamanzi, ukujiya kanye nomphumela omuhle wesixhumi esibonakalayo kwenza izinamathelisi ezisekelwe kusimende zifinyelele imiphumela emihle kakhulu ekwakhiweni kwangempela. Ngokuthuthuka okuqhubekayo kobuchwepheshe, izindawo zokufaka izicelo kanye nemisebenzi ye-HPMC nayo ikhula njalo, ihlinzeka ngamathemba abanzi okuthuthukiswa kwezinamatheliso zamathayela asekelwe kusimende.
Isikhathi sokuthumela: Jun-28-2024