I-Cellulose HPMC, eyaziwa nangokuthi i-hydroxypropyl methylcellulose, iyinto evuselelekayo futhi ehambisana nemvelo etholakala ku-cellulose ku-pulp yokhuni noma i-cotton fiber. Kuyi-polymer ye-nonionic enezindawo ezinhle kakhulu zokugcina amanzi, ukujiya, kanye nezakhiwo zokwakha ifilimu. Isetshenziswa kabanzi ezimbonini ezahlukahlukene ezifana nezokwakha, imithi, ukudla, izimonyo, nezindwangu.
Embonini yezokwakha, i-HPMC isetshenziswa ngokuyinhloko njenge-rheology modifier kanye ne-ejenti yokugcina amanzi emikhiqizweni esekwe usimende njengodaka, ama-grouts, okunamathelisa amathayela kanye nezinhlanganisela ezizilinganisa. Idlala indima ebalulekile ekuthuthukiseni ukucutshungulwa, ukuqina nokusebenza kwalezi zinto ezisetshenziswayo, ukuqinisekisa imiphumela engaguquki nebikezelwayo.
Enye yezinzuzo ezibaluleke kakhulu zekhwalithi ephezulu ye-cellulose HPMC yikhono layo lokuhlakazeka ngokulinganayo nangempumelelo odakeni lukasimende kanye nemikhiqizo ye-matrix yegypsum. Lokhu kungenxa yesakhiwo sayo samakhemikhali esiyingqayizivele, okwenza ukuthi ihambisane nalezi zinto ezisekelwe kumaminerali futhi ivumela ukuthi yakhe ukuhlakazeka okuzinzile, okufanayo.
Uma yengezwe kusimende noma i-matrix ye-gypsum, i-HPMC yenza ungqimba oluvikelayo oluzungeze izinhlayiya, lizivimbele ekuhlanganiseni noma ukuzinza. Lokhu kubangela ingxube elinganayo, okulula ukuyiphatha, ukunciphisa ingozi yokuhlukana kanye nokwenza ngcono ukuhambisana nekhwalithi yomkhiqizo wokugcina.
Ngaphezu kwalokho, izakhiwo ezigcina amanzi ze-HPMC ziyenza ikwazi ukugcina umswakama ngaphakathi kwe-matrix, ikhuthaze ukugeleza okufanele kwezinhlayiya zikasimende futhi ithuthukise amandla esibopho nokuqina phakathi kwawo. Lokhu kubaluleke kakhulu ezimweni ezinzima zemvelo lapho izinto zingase zichayeke emijikelezweni yokuncibilika kweqhwa noma umswakama ophezulu, okubangela ukuqhekeka, ukuqhekeka noma ukubola.
Ngaphezu kwezinzuzo zayo ze-rheological kanye nokugcina amanzi, i-HPMC isebenza njenge-thickener ne-binder yemikhiqizo esekwe usimende, ihlinzeka ngokuzinza okukhulu nokunamathela. Ithuthukisa ukumelana nokuntengantenga kwezinamatheliso zamathayili, ivimbele ukopha kwezinhlanganisela ezizilinganisa futhi ithuthukise amandla esibopho se-plaster noma ukhonkolo.
I-HPMC iyimpahla engenabuthi futhi engaboli, iyenze ilungele izinqubo zokwakha ezisimeme. Awekho ama-VOC ayingozi noma ukungcola okukhishwayo ngesikhathi sokukhiqiza noma ukusetshenziswa, futhi angalahlwa ngokuphepha ngemva kokusetshenziswa.
I-HPMC yekhwalithi ephezulu ye-cellulose iyimpahla eguquguqukayo nebalulekile embonini yezokwakha, ethuthukisa ukusebenza nokuthembeka kwemikhiqizo esekwe usimende. Ikhono layo lokuhlakazeka ngokulinganayo nangempumelelo ngaphakathi kukamatikuletsheni wodaka nokhonkolo, kuhambisana nokugcina amanzi, ukujiya nokubopha izakhiwo, kuyenza ibe yimpahla ebalulekile kunoma iyiphi iphrojekthi yokwakha.
Ukusimama kwayo kanye nobungane bemvelo kuyenza ibe ukukhetha okufanele kubakhi nabakhiqizi ababeka phambili ukuvikelwa kwemvelo kanye nesibopho emphakathini. Ngakho-ke, iyinto okufanele yaziwe kabanzi futhi isetshenziselwe ukuthuthukisa imboni yezokwakha kanye neplanethi yonkana.
Isikhathi sokuthumela: Sep-06-2023