I-HPMC, eyaziwa nangokuthi i-hydroxypropyl methylcellulose, iyinhlanganisela yomndeni wama-cellulose ethers. Itholakala ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo. I-HPMC isetshenziswa kabanzi embonini yezokwakha ngenxa yezakhiwo zayo ezinemisebenzi eminingi.
I-HPMC ivamise ukusetshenziswa njenge-thickener, binder, i-film yangaphambili kanye ne-ejenti yokugcina amanzi ezintweni zokwakha ezifana nemikhiqizo eyenziwe usimende, izinto zokunamathisela zamathayela, amapulasi, amapulastele kanye nama-grouts. Ukwakheka kwayo kwamakhemikhali kuyivumela ukuthi imunce amanzi futhi yakhe into efana nejeli ethuthukisa ukusebenza, ukunamathela kanye nokumelana ne-sag yezinto zokwakha.
Nazi ezinye izakhiwo ezibalulekile kanye nokusetshenziswa kwe-HPMC embonini yezokwakha:
Ukugcinwa kwamanzi: I-HPMC imunca futhi igcine amanzi, ivimbele izinto ezisekelwe kusimende ukuthi zome ngokushesha. Lokhu kusiza ekunciphiseni ukuqhekeka, kuthuthukisa i-hydration futhi kuthuthukise amandla onke nokuqina kwemikhiqizo yokwakha.
Ukucutshungulwa okuthuthukisiwe: I-HPMC isebenza njengesilungisi se-rheology, ihlinzeka ukucutshungulwa okungcono kanye nokusetshenziswa okulula kwezinto zokwakha. Ithuthukisa ukusabalala nokumelana nokuwohloka kodaka namapulasi, okwenza kube lula ukuphatha nokufaka isicelo.
Ukunamathela nokubumbana: I-HPMC ithuthukisa ukunamathela phakathi kwezinto zokwakha ezahlukahlukene. Yandisa amandla esibopho sezinto ezinamathelayo zamathayela, amapulasi namapulasi, iqinisekisa ukunamathela okungcono kuma-substrates afana nokhonkolo, ukhuni namathayili.
I-Sag Resistance: I-HPMC yehlisa ukugoqa noma ukuwa kwezinto eziqondile ezifana nokunamathiswa kwethayela noma i-primer ngesikhathi sokufaka. Lokhu kusiza ukugcina ukujiya okufunayo futhi kuvimbele ukungqubuzana noma ukuconsa.
Ukwakhiwa Kwefilimu: Uma i-HPMC yoma, yakha ifilimu elincanyana, eliguquguqukayo, elisobala. Le filimu inganikeza ukumelana kwamanzi okungcono, ukumelana nesimo sezulu kanye nokuvikelwa kwendawo yezinto zokwakha ezisetshenzisiwe.
Isikhathi sokuthumela: Jun-06-2023