1. HPMC yakakamurwa kuva pakarepo mhando uye nokukurumidza kupararira mhando
Iyo HPMC inokurumidza kuparadzira mhando inosungirirwa netsamba S, uye glyoxal inofanirwa kuwedzerwa panguva yekugadzira.
HPMC instant type haiwedzeri chero mavara, senge "100000" zvinoreva "100000 viscosity nekukurumidza dispersion type HPMC".
2. Iine kana isina S, maitiro akasiyana
Inokurumidza kupararira HPMC inopararira nekukurumidza kana ikasangana nemvura inotonhora uye inonyangarika mumvura.Panguva ino, mvura haina viscosity, nokuti HPMC inongopararira mumvura pasina kuparara kwechokwadi.Mushure memaminitsi anenge maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira yakajeka viscous Thick colloid.
Instant HPMC inogona kuparadzirwa nekukurumidza mumvura inopisa kusvika 70°C.Kana tembiricha yadonha kune imwe tembiricha, iyo viscosity inozoonekwa zvishoma nezvishoma kusvika yakajeka viscous colloid yaumbwa.
3. Iine kana isina S, chinangwa chakasiyana
Instant HPMC inogona kushandiswa chete mu putty poda uye dhaka.Mune glue yemvura, pendi uye zvigadzirwa zvekuwachisa, pachave nemapoka chiitiko uye hazvigone kushandiswa.
Inokurumidza kuparadzirwa HPMC ine huwandu hwakasiyana hwekushandisa uye inogona kushandiswa mu putty poda, dhaka, mvura glue, pendi, uye zvigadzirwa zvekuwachisa pasina contraindication.
Dissolving nzira
1. Tora huwandu hunodiwa hwemvura inopisa, uiise mumudziyo uye upise pamusoro pe80 ° C, uye zvishoma nezvishoma uwedzere chigadzirwa ichi pasi pekunonoka.Iyo cellulose inoyangarara pamusoro pemvura pakutanga, asi inoparadzirwa zvishoma nezvishoma kuita yunifomu slurry.Mushonga wacho wakatonhodzwa uchikurunga.
2. Zvimwewo, kupisa 1/3 kana 2/3 yemvura inopisa kusvika pamusoro pe85 ° C, wedzera cellulose kuti uwane slurry yemvura inopisa, wobva wawedzera mvura yakasara yemvura inotonhora, ramba uchikurudzira, uye utonhodze musanganiswa unoguma.
3. Mesh ye cellulose yakanyatsonaka, uye iripo sediki diki muhupfu hwakavhenganiswa, uye inonyungudika nekukurumidza kana yasangana nemvura kuti iite viscosity inodiwa.
4. Zvishoma nezvishoma uye zvakaenzana kuwedzera cellulose pakushambidzika kwekamuri, ichikurudzira nguva dzose kusvikira mhinduro yakajeka inogadzirwa.
Ndezvipi zvinhu zvinokanganisa kuchengetwa kwemvura kwehydroxypropyl methylcellulose?
Kuchengetwa kwemvura kwehydroxypropyl methylcellulose HPMC chigadzirwa pachayo kunowanzo kukanganiswa nezvinhu zvinotevera:
1. Kufanana kwe cellulose ether HPMC
Yakaenzana yakabatwa HPMC, methoxyl uye hydroxypropoxyl zvakagoverwa zvakaenzana, uye mwero wekuchengetedza mvura wakakwira.
2. Thermal gelation tembiricha ye cellulose ether HPMC
Iyo yakakwirira tembiricha yekudziya gel, iyo yakakwirira yekuchengeta 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 sandara.
Kuwedzera huwandu hwe cellulose ether HPMC
Iyo yakakura huwandu hweselulosi ether HPMC yakawedzerwa, iyo yakakwirira mwero wekuchengetedza mvura uye zvirinani mhedzisiro yekuchengeta mvura.
Muchikamu che 0.25-0.6% kuwedzera, chiyero chekuchengetedza mvura chinowedzera nokukurumidza nekuwedzera kwekuwedzera kwekuwedzera;apo huwandu hwekuwedzera hunowedzera kuwedzera, kuwedzera kwemaitiro ekuchengetwa kwemvura kunononoka.
Nguva yekutumira: Nov-17-2022