Chii chakasiyanahydroxypropyl methylcellulose(HPMC) ine kana isina S?
1. HPMC yakakamurwa kuva pakarepo mhando uye nokukurumidza kupararira mhando
HPMC inokurumidza kuparadzira mhando inosungirirwa netsamba S. Munguva yekugadzira, glyoxal inofanira kuwedzerwa.
HPMC instant type haiwedzeri chero mavara, akadai se "100000" iri "100000 viscosity inokurumidza kupararira mhando HPMC".
2. Iine kana isina S, maitiro akasiyana
Kukurumidza kuparadzira HPMC inopararira nekukurumidza mumvura inotonhora uye inonyangarika mumvura.Panguva ino, mvura haina viscosity, nokuti HPMC inongopararira mumvura, uye hapana kuparara kwechokwadi.Mushure memaminitsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira mvura inonamira yakajeka.Gobvu colloid.
Instant HPMC inogona kupararira nekukurumidza mumvura inopisa pa70 ° C.Kana tembiricha yadonha kusvika kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma kusvika yakajeka viscous colloid yaumbwa.
3. Iine kana isina S, chinangwa chakasiyana
Instant HPMC inogona kushandiswa chete mu putty poda uye dhaka.Mumvura glues, machira uye zvinhu zvekuchenesa, clumping ichaitika uye haigone kushandiswa.
Inokurumidza kuparadzira HPMC ine huwandu hwakawanda hwekushandisa.Inogona kushandiswa muputty poda, dhaka, glue yemvura, pendi, uye zvigadzirwa zvekuwachisa pasina contraindications.
Dissolution nzira
1. Tora huwandu hunodiwa hwemvura inopisa, uiise mumudziyo uye upise kusvika pamusoro pe80 ° C, uye zvishoma nezvishoma uwedzere chigadzirwa ichi pasi pekugadzirisa zvishoma nezvishoma.Iyo cellulose inoyangarara pamusoro pemvura pakutanga, asi inoparadzirwa zvishoma nezvishoma kuita yunifomu slurry.Cool mhinduro nekukurudzira.
2. Kana kupisa 1/3 kana 2/3 yemvura inopisa kusvika pamusoro pe85 ° C, wedzera cellulose kuti uwane slurry yemvura inopisa, wobva wawedzera yakasara yemvura inotonhora, ramba uchikurudzira, uye utonhodze musanganiswa unoguma.
3. Cellulose ine mesh nhamba yakanaka, uye iripo sechinhu chidiki diki muupfu hwakakanyiwa zvakafanana, uye inonyungudika nekukurumidza kana yasangana nemvura kuti iite viscosity inodiwa.
4. Wedzera cellulose zvishoma nezvishoma uye zvakaenzana pakupisa kwekamuri, uye ramba uchikurudzira panguva yekuwedzera kusvikira mhinduro yakajeka yagadzirwa.
Ndezvipi zvinhu zvinokanganisa kuchengetwa kwemvura kwehydroxypropyl methylcellulose?
Kuchengetwa kwemvura kwehydroxypropyl methylcellulose HPMC chigadzirwa pachayo kunowanzo kukanganiswa nezvinhu zvinotevera:
1. Cellulose ether HPMC homogeneity
Iyo yakafanana yakabatwa HPMC ine yunifomu yekugovera methoxy uye hydroxypropoxy mapoka uye yakakwirira kuchengetwa kwemvura.
2. Cellulose ether HPMC thermal gel tembiricha
Iyo yakakwirira tembiricha yekudziya gel, inowedzera mwero wekuchengetedza mvura;kana zvisina kudaro, iyo yakaderera mwero wekuchengetedza mvura.
3. Cellulose ether HPMC viscosity
Kana viscosity yeHPMC ichiwedzera, chiyero chekuchengetedza mvura chinowedzerawo;apo viscosity inosvika kune imwe nhanho, kuwedzera kwehuwandu hwekuchengetedza mvura kunowanzova munyoro.
Cellulose ether HPMC yekuwedzera huwandu
Iyo yakakura iyo yakawedzerwa huwandu hweselulosi ether HPMC, iyo yakakwirira mwero wekuchengetedza mvura uye zvirinani mhedzisiro yekuchengeta mvura.
Muchikamu che 0.25-0.6%, chiyero chekuchengetedza mvura chinowedzera nokukurumidza nekuwedzera kwekuwedzera kwekuwedzera;apo huwandu hwekuwedzera hunowedzera kuwedzera, kuwedzera kwemaitiro ekuchengetedza mvura kunononoka.
Nguva yekutumira: Oct-17-2022