HydroxyPropyl methylcellose (HPMC) ishandare yaishandiswa uye yakashandiswa zvakanyanya mune dzakasiyana-siyana maindasitiri, anozivikanwa nezvakawanda zvakasiyana uye zvinoshandiswa. Iyi compound ndeyekuti inobviswa kwe cellulose, polymer yakasikwa inowanikwa mumasango masero emadziro. Kuti unzwisise kuumbwa kwehydroxypromylmethylcylosellose, zvakakosha kuti utarise muchimiro uye synthesis yemheremello inobva.
Chimiro che cellulose:
Cellulose ndeye yakaomarara carbohydrate inosanganisira mutsara wenziyo ye β-d-glucose zvikamu zvakabatana neAGL -,4-GLYCONICIC BONS. Aya maketani eglucose anoitwa pamwe chete neHydrogen zvisungo kuumba yakaomeswa mutsara chimiro. Cellulose ndicho chinhu chikuru chechimiro chemadziro emasero masero, zvichipa simba uye kuomarara kune masendimita.
Derivatives yeHydroxyPropyl methylcellose:
HydroxyPropyl methylcellose iri yakanyorwa nemakemikari kugadzirisa cellulose uye kuunza hydroxyprosyl uye methyl mapoka mune mainini mapoka eCellulose. Kugadzirwa kunowanzo kusanganisira matanho anotevera:
Etified maitiro:
Methylation: Kurapa Cellulose Solution uye MetHyl Chloride Kuti Uise Methyl Mapoka (-Chit3) muHydroxyl Mapoka (-Oo) yeCellulose.
Hydroxyprupropylation: Methylated Cellolose Forces neProfyeryxe Oxide kuti uunze hydroxpropropropropropropropropropropropropropropropropropyl mapoka (-ch2chohch3) muCellulose chimiro. Iyi process inosimudzira solubility yemvura uye inoshandura zvivakwa zvemuviri zve cellulose.
Kunatswa:
Iyo yakashandurwa cellulose inobva yacheneswa kubvisa chero nzira dzisina kugadziriswa, ne-zvigadzirwa kana kusachena.
Kuomesa uye kugeda:
Iyo yeHydroxyPropropyl methylcellose yakaomeswa uye ivhu mune yakanaka poda yakagadzirira kushandiswa mune dzakasiyana siyana dzekushandisa.
Zvinongedzo zve hydroxyprupyl methylcellose:
Kuumbwa kwe hydroxyprusypropyl methylcellose kunoratidzwa neiyo degree rekutsiva, iyo inoreva degree kune iyo hydroxypropropropropropropropropropropropropropropropyl uye methyl mapoka anotsiva hydroxyl mapoka muCellulose Cache. Mamakisi akasiyana eHPMC ane madhigirii akasiyana ekutsiva, achikanganisa solubility yavo, viscosity uye zvimwe zvivakwa.
Iyo makemikari formula ye hydroxyprusyl methylcellose inogona kuratidzwa se (C6H7O2 (OH) 3-mn3) m (Och2ch (och2ch (och3ch (och3) ch3) n) n) n) _ x inomiririra degree rekutsiva.
M: degree reMethylation (methyl mapoka pane glucose unit)
n: degree re hydroxyprupropropylation (hydroxypruspropyl mapoka pane glucose unit)
X: Nhamba yeGlucose Units muCellulose Chain
Zvinhu uye Zvikumbiro:
Solubility: HPMC iri manyorerwo, uye iyo degree rekutsiva rinokanganisa hunhu hwayo hwekunyora. Iyo inoumba mhinduro yakajeka uye viscous mumvura, ichiita kuti ive yakakodzera kune dzakasiyana siyana mafambiro.
Viscosity: Iyo viscosity yeHPMC solution zvinoenderana nezvinhu zvakadai semagetsi uye degree rekutsiva. Ichi chivakwa chakanyanya kuoma zvekushandisa senge mishonga inoda kudzora kudzora mafomu ekuburitswa.
Film Ford: HPMC inogona kuumba mafirimu akaonda semhinduro inooma, ichiita kuti iite kuti ive inobatsira mumatombo mune mishonga yemishonga, chikafu uye mamwe maindasitiri.
STBILIZERS uye muindasitiri yeChikafu, HPMC inoshandiswa seanoshandiswa sedhizimusi uye stabilizer mune dzakasiyana siyana zvigadzirwa, kusanganisira sosi, masaga, uye zvakabikwa zvinhu.
Zvishandiso zveMishonga: HPMC inoshandiswa zvakanyanya mumishonga yemishonga, kusanganisira mahwendefa, mahwendefa, uye mhinduro yemakapu, nekuda kwekushandiswa kwayo kwekuburitswa kwesununguko uye biocomputer.
Kuvaka uye kuungana: HPMC inoshandiswa mune zvekuvaka zvakadai se motsa, tile anomisheni uye purasti. Izvo zvinoshandiswawo seanoti uye stabilizer mukupenda uye kuunganidza mafomu.
Zvigadzirwa zvega zvega: Mune zvigadzirwa zvechiremba uye wega
Hydroxyprusyl methylcellose inowanikwa ne methylation uye hydroxypruslation ye cellulose. Iyo inzvimbo yakawanda-chinangwa polymer ine huwandu hwakawanda hwekushandisa. Zvivakwa zvaro zvakasarudzika zvinoita kuti zvive zvakakosha mumaindasitiri senge mishonga, chikafu, kuvaka uye kutarisira pachako. Kugadziridzwa kweCellulose kunogona kuita zvinhu zveHPMC, zvichiita chinhu chakakosha chezvigadzirwa zvakawanda zvatinosangana nazvo muhupenyu hwedu hwezuva nezuva.
Kutumira Nguva: Jan-10-2024