Hydroxypropylmethylcellulose (HPMC) i polymer inonyungudika mumvura inoshandiswa zvakanyanya mumaindasitiri akasiyana semushonga, chikafu, zvizorwa, uye kuvaka.HPMC inozivikanwa nekunaka kwayo kwekuchengetedza mvura zvivakwa, zvichiita kuti ive chinhu chakanakira mukushandisa kwakawanda.Muchikamu chino, tinoongorora zvinhu zvinokanganisa kuchengetwa kwemvura kweHPMC uye maitiro ekugadzirisa zvinhu izvi kuti zviwedzere kushanda kwavo.
1. Kurema kwema molecular
Huremu hwemamorekuru hweHPMC hunoita basa rakakosha mukuchengetedza mvura.Iyo yakakwirira yehuremu hwema molecular, inowedzera simba rekuchengetedza mvura.Izvi zvinodaro nekuti yakakwira molecular uremu HPMC ine yakakwira viscosity, iyo inoita kuti igadzire firimu rakakura pamusoro peiyo substrate, nekudaro ichidzikisa kurasikirwa kwemvura.Naizvozvo, kune maapplication uko kuchengetwa kwemvura kwakakosha, yakakwira molecular uremu HPMC inokurudzirwa.
2. Dhigirii rekutsiva
Iyo dhigirii yekutsiva (DS) inoreva huwandu hwehydroxypropyl uye methyl mapoka muHPMC molecule.Iyo yakakwirira iyo DS, inowedzera simba rekuchengetedza mvura.Izvi zvinodaro nekuti iyo hydroxypropyl uye methyl mapoka anowedzera kunyungudika kweHPMC mumvura uye inosimudzira kugona kwayo kuumba gel-kufanana kuwirirana kunogona kugarisa mamorekuru emvura.Naizvozvo, kune maapplication uko kuchengetwa kwemvura chinhu chakakosha, HPMC ine yakakwirira dhigirii yekutsiva inokurudzirwa.
3. Tembiricha uye mwando
Tembiricha uye humidity zvinhu zvakakosha zvinokanganisa kuchengetedza kwemvura kweHPMC.Tembiricha yepamusoro uye hunyoro hushoma huchaita kuti mvura iri mufirimu reHPMC inyunguduke nekukasira, zvichikonzera kusachengeteka kwemvura.Naizvozvo, zvinokurudzirwa kuchengeta HPMC munzvimbo inotonhorera uye yakaoma kuti ichengetedze yayo-yekuchengetedza mvura.
4. pH kukosha
Iyo pH ye substrate inoitawo basa rakakosha mukuchengetwa kwemvura kweHPMC.HPMC inonyanya kushanda mukurerekera kune zvishoma kune acidic nharaunda.Kana iyo pH yematrix yakakwira, kunyungudika kweHPMC kunogona kudzikiswa uye mhedzisiro yemvura inodzikiswa.Naizvozvo, zvinokurudzirwa kuti uedze pH ye substrate uye uigadzirise kune yakaringana chiyero chekuchengetedza mvura yakakwana.
5. Kuisa pfungwa
Iko kusungirirwa kweHPMC kunokanganisawo maitiro ayo ekuchengetedza mvura.Kazhinji, iyo yakakwirira yehuwandu hweHPMC, zviri nani kuchengetedza mvura.Nekudaro, pakakwirira zvakanyanya, iyo viscosity yeHPMC inogona kukwira zvakanyanya, zvichiita kuti zviome kuisa uye kupararira zvakaenzana pane substrate.Naizvozvo, zvinokurudzirwa kuyedza iyo optimum yekusangana kweHPMC kune yega yega application kuitira kuti uwane yakanakisa kuchengetedza mvura.
Mukupedzisa, HPMC yave chinhu chakakosha nekuda kwekunaka kwayo kwekuchengetedza mvura zvivakwa uye inoita basa rakakosha mumaindasitiri akasiyana.Zvinhu zvinokanganisa kuchengetwa kwayo kwemvura, senge mamorekuru huremu, dhigirii rekutsiva, tembiricha uye humidity, pH uye kutarisisa, inogona kugadzirwa kuti iwedzere kushanda kwayo.Nekunzwisisa zvinhu izvi, tinogona kuve nechokwadi chekuti HPMCs inosvika pakukwanisa kwavo kuzere, ichigonesa kugadzirwa kwezvigadzirwa zvakagadziridzwa kune yavo yekuchengeta mvura.
Nguva yekutumira: Jul-04-2023