Hydroxypropyl methylcellulose hainyungudike mu ethanol ne acetone. Mvura iyi inogadzikana zvikuru kana iri tembiricha yemumba uye inogona kunyorova kana iri tembiricha yepamusoro. Huwandu hwe hydroxypropyl methylcellulose iri kutengeswa ikozvino ndeyemvura inotonhora (mvura yemumba, mvura yepombi) yemhando yeinokurumidza. HPMC yemvura inotonhora inokurumidza ichave nyore kushandisa uye yakachengeteka. HPMC inofanira kuwedzerwa zvakananga mumvura inotonhora mushure memaminitsi gumi kusvika makumi mapfumbamwe kuti ikobvu zvishoma nezvishoma. Kana iri modhi yakakosha, inofanira kusanganiswa nemvura inopisa kuti ipararire, uye yozodururwa mumvura inotonhora kuti inyungudike mushure mekutonhora.
Kana zvigadzirwa zveHPMC zvikawedzerwa zvakananga mumvura, zvinogwamba zvobva zvanyunguduka, asi kunyunguduka uku kunononoka uye kwakaoma. Nzira nhatu dzinotevera dzekunyunguduka dzinokurudzirwa, uye vashandisi vanogona kusarudza nzira iri nyore zvichienderana nemamiriro ekushandisa (kunyanya yeHPMC yemvura inotonhora).
Nzira yekunyungudutsa uye matanho ekudzivirira eHPMC
1. Nzira yemvura inotonhora: Kana ichida kuwedzerwa zvakananga mumvura inodziya patembiricha yakajairika, zvakanaka kushandisa rudzi rwekupararira kwemvura inotonhora. Mushure mekuwedzera viscosity, kuenderana kwayo kuchawedzera zvishoma nezvishoma kusvika panodiwa index.
2. Nzira yekusanganisa upfu: Upfu hweHPMC nezvimwe zvinhu zvakaita seupfu zvinosanganiswa zvizere nekusanganisa kwakaoma, uye mushure mekuwedzera mvura kuti inyunguduke, HPMC inogona kunyungudutswa panguva ino uye haichazounganidzwi. Kutaura zvazviri, zvisinei nekuti rudzii rwehydroxypropyl methylcellulose. Inogona kusanganiswa zvakananga nezvimwe zvinhu.
3. Nzira yekunyorovesa organic solvent: HPMC inonyungudutswa kana kunyoroveswa neorganic solvents, senge ethanol, ethylene glycol kana mafuta, yozonyungudutswa mumvura, uye HPMC inogonawo kunyungudutswa zvakanaka.
Munguva yekunyungudika, kana paine agglomeration, ichaputirwa. Izvi zvinokonzerwa nekukurunga kusina kuenzana, saka zvakakosha kukurumidzisa kumhanya kwekukurunga. Kana paine mabubbles mukunyungudika, zvinokonzerwa nemhepo inokonzerwa nekukurunga kusina kuenzana, uye mhinduro inobvumirwa kumira kwemaawa maviri kusvika gumi nemaviri (nguva yakatarwa inoenderana nekuenderana kwemhinduro) kana kupukuta, kudzvanya uye dzimwe nzira dzekubvisa, kuwedzera huwandu hwakakodzera hwe defoamer kunogonawo kubvisa mamiriro aya. Kuwedzera huwandu hwakakodzera hwe defoamer kunogonawo kubvisa mamiriro aya.
Sezvo hydroxypropyl methylcellulose ichishandiswa mumaindasitiri akasiyana-siyana, zvakakosha zvikuru kuziva nzira yekunyungudutsa hydroxypropyl methylcellulose kuti ishandiswe nemazvo. Pamusoro pezvo, vashandisi vanoyeuchidzwa kuti vateerere dziviriro yezuva, dziviriro yemvura uye dziviriro yehunyoro panguva yekushandisa, kudzivirira chiedza chakananga, uye kuchengeta munzvimbo yakavharwa uye yakaoma. Dzivisa kusangana nezvinhu zvinobatidza moto uye dzivisa kuumbwa kweguruva rakawanda munzvimbo dzakavharwa kudzivirira njodzi dzekuputika.
Nguva yekutumira: Chikumi-20-2023