HydroxyPropyl methylcellose (HPMC) is is is is-ionic cellelose inoshandiswa zvakanyanya mune zvekuvakira, chikafu, chikafu chemazuva ese uye mamwe minda.
1. Basic hunhu
Solubility: HPMC inonyura mumvura inotonhora uye mamwe organic sol sol sol solution, uye mhinduro kwayo kwemvura haina kwayakarerekera kana isina kusimba alkaline.
Kukakavara: HPMC ine yakanaka kwazvo kugona uye inogona kugadzirisa iyo viscosity uye iyo thixotropy yezvinyorwa.
Kuchengeta kwemvura: Inogona kunyatsowedzera nguva yemvura yemvura uye kugadzirisa maitiro ekuvaka.
Firimu-Kugadzira Imba: HPMC inogona kuumba iyo yefirimu yakajeka uye inochinja-famba.
Thermogelation: Ichasvetuka mushure mekupedza kusimbirira kune imwe tembiricha uye dzokera kumisikidzwa mamiriro mushure mekutonhora.
2. Mashandisiro Aungaita
Matanho ekupaza
HPMC inoda kunyungudutswa zvakanyatsonaka kana ichishandiswa kupa izere kutamba kune kwayo basa:
Cold Mvura Dispolution:
Svina HPMC zvishoma nezvishoma mumvura inotonhora kuti udzivise zvakananga kuunganidzwa.
Wedzera uchimutsa kuti ugadzire kusagadzikana kwakapararira.
Mushure mekumira kwenguva yenguva (anenge maminitsi makumi matatu kusvika kumaawa akati wandei), HPMC ichanyungudika zvishoma nezvishoma kuti iite mhinduro yakajeka.
Mvura inopisa mvura:
Sanganisa HPMC nemvura inopisa (pamusoro 70 ° C) uye simudzira kuti uzviparire.
Mushure mekutonhora, wedzera mvura inotonhora uye ramba uchimutsa kusvikira yanyungudika.
Iyi nzira yakakodzera mamiriro ezvinhu uko mhinduro inoda kugadzirwa nekukurumidza.
Kudzora Kwekusimbisa
Zvinoenderana nekushandiswa kwakananga, kusunganidzwa kweHPMC mhinduro inofanirwa kugadziriswa zvine musoro:
Shamba yekuvakidzana
Chikafu munda: Iyo yekushandisa inowanzoitika 0.05% ~ 0.5%, yakatemwa maererano nechikafu chinowedzera mirau.
Medical munda: HPMC ndeyemhando dzepiritsi, uye huwandu hwekuwedzera hunoda kudzorwa kuti uve nechokwadi chekuburitswa kwezvinodhaka.
Shandisa kunatsiridza munda
Indasitiri yekuvaka:
MuPutty poda uye dhiraivhi, kutanga kunyungudika hpmc mumvura, uye wozosanganisa zvakaringana nezvimwe zvinhu zvakaenzana.
Kana ichishandiswa mu tile inonamatira, HPMC inogona kuvandudza viscosity uye anti-inotsvedza zvivakwa.
Mishonga yemishonga:
Inogona kushandiswa zvakanyatsoshandiswa pakuvhara mishonga yemishonga kuti uvandudze kuparadzaniswa uye kusunungura kutonga.
Dailymical emakemikari yemakemikari:
Iyo inoshandiswa seyakavharira kana emulsifier stabilizer mune inodzivirira uye yechiso kuchenesa.
Pendi munda:
Iyo inoshandiswa seyakakoshesa muLatex pendi kudzivirira pigment precipitation.
3. Kuchera
Kupisa pesvedzero: Iyo solubility yeHPMC yakanyatsoenderana nekushisa. Tembiricha yakakwira inogona kukonzera magazini, saka inokurudzirwa kushanda mumvura inotonhora kuti udzivise pakarepo.
Kukurudzira nzira: Simudza zvishoma nezvishoma uye zvakaringana kudzivirira zvakawandisa mabhuru anokonzerwa nekusimudzira kwakasimba.
Mamiriro ekuchengetedza:
Ngwarira kuratidzwa kwenzvimbo dzakanyorova.
Dzivisa kusangana neakasimba acids, yakasimba alkalis kana oxidants.
Chengetedzo: HPMC haina-yepfu uye isiri-yekutsamwisa, asi michina inodzivirira inofanira kupfekedzwa panguva yekuvhiya yekuvhiya kuti idzivirire kana kusangana nemaziso.
Kuburikidza nekuparadzwa kwakakodzera uye kushandiswa, hydroxyprupyl methylcellose kunogona kutamba kuchengetwa kwayo kwakanakisa, kuchengetwa kwemvura, kuderedza uye kusimbisa migumisiro muminda dzakasiyana siyana.
Kutumira Nguva: Kukadzi-15-2025