Hydroxypropyl methyl cellulose uye carboxymethyl cellulose sodium zvinogona kusanganiswa

HPMC neCMC zvinogona kusanganiswa here?

Methyl celluloseChichena kana chichena seupfu hwe fibrous kana granular; Hainhuwi, haina kunaka. Chigadzirwa ichi mumvura chinozvimba kuita colloidal solution yakajeka kana ine turbid zvishoma; Hainyungudike mu absolute ethanol, chloroform kana diethyl ether. Chinokurumidza kupararira uye kuzvimba mumvura inopisa pa 80-90 ℃, uye chinonyungudika nekukurumidza mushure mekutonhora. Mvura inodziya inogara zvakanaka patembiricha yemumba, uye inogona gel patembiricha yakakwira, uye gel inogona kuchinja nemhinduro netembiricha.

Inokwanisa kunyorova zvakanaka, kupararira, kunamira, kukora, emulsification, kuchengetedza mvura uye kugadzirwa kwefirimu, pamwe nekusapinda kwemafuta. Firimu iyi ine kusimba kwakanyanya, kuchinjika uye kujeka. Nekuti haisi ionic, inogona kushanda nemamwe ma emulsifiers, asi iri nyore kuisa munyu, uye mhinduro yacho yakagadzikana muhuwandu hwePH2 — 12. Sodium carboxymethyl cellulose Chigadzirwa ichi imunyu wesodium we cellulose carboxymethyl ether, ndeye anionic cellulose ether, ine upfu hwe fibrous kana particle chena kana mukaka, density 0.5-0.7 g/cubic centimeter, inenge isina hwema, isina kuravira, hygroscopic. Zviri nyore kupararira mumvura kuita gelatinous solution yakajeka, isinganyungudike mu ethanol nedzimwe organic solvents.

Kana pH yemvura iri 6.5 — 8.5, viscosity yeslurry inodzikira zvakanyanya kana pH iri >10 kana <5, uye mashandiro acho akanaka kwazvo kana pH iri 7. Kuti pave nekugadzikana kwekupisa, viscosity inokwira nekukurumidza pasi pe20℃, inochinja zvishoma nezvishoma pa45℃, uye colloid denaturation uye viscosity uye properties zvinodzikira zvakanyanya kana zvapiswa kwenguva yakareba pamusoro pe80℃. Inonyungudika nyore mumvura, inopenya; Yakasimba kwazvo mualkaline solution, uye iri nyore kuhydrolyze kana iri acid. Kana pH value iri 2-3, mvura ichanaya, uye mvura ichanayawo kana iri multivalent metal salts. Hydroxypropyl methyl cellulose, inozivikanwawo se hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether, isarudzo ye cotton cellulose yakachena kwazvo sezvinhu zvakabikwa, pasi pemamiriro e alkaline ne etherification yakakosha uye kugadzirira.

Inonyungudika mumvura uye polar C yakawanda uye chikamu chakakodzera cheethanol/mvura, propanol/mvura, dichloroethane, nezvimwewo, hainyungudike mu diethyl ether, acetone, absolute ethanol, kuzvimba mumvura inotonhora kuita colloidal solution yakajeka kana kuti ine turbid zvishoma. Mvura ine activity pamusoro, yakajeka uye inoshanda zvakagadzikana.HPMCine hunhu hwegel inopisa. Mushure mekudziya, mhinduro yemvura inogadzirwa inogadzira mvura yegel, yozonyunguduka mushure mekutonhora. Tembiricha yegel ine zvirevo zvakasiyana yakasiyana.