Chii chinonzi Hydroxypropyl methylcellulose?

1. Nhanganyaya

Hydroxypropyl methylcellulose (HPMC) inoshandiswa zvakanyanya mumvura-soluble polymer yakabva muselulosi. Iyo isiri-ionic, isinganhuhwi, isinganakidze, chena kusvika kunze-chena hupfu hunoshandiswa zvakanyanya mumaindasitiri ezvekudya, emishonga, uye zvekuzora. HPMC ine zvakasiyana-siyana zvekushandisa, zvinosanganisira kukora, emulsifying, kumisa, kudzikamisa, uye kugadzira firimu. Inoshandiswawo sebinder, lubricant, uye disintegrant mukugadzirwa kwemapiritsi nemakapisi.

2. Raw Materials

Iyo huru mbishi inoshandiswa kugadzira HPMC i cellulose, iri polysaccharide inoumbwa neglucose mayunitsi. Cellulose inogona kuwanikwa kubva kwakasiyana-siyana, kusanganisira huni pulp, donje, uye mamwe mashizha emiti. Iyo cellulose inozobatwa nemakemikari process kugadzira hydroxypropyl methylcellulose.

3. Manufacturing Process

Maitiro ekugadzira eHPMC anosanganisira akati wandei matanho. Kutanga, iyo cellulose inobatwa nealkali, senge sodium hydroxide, kugadzira alkali cellulose. Iyi alkali cellulose inobva yaitwa nemethyl chloride uye propylene oxide kugadzira hydroxypropyl methylcellulose. Iyo hydroxypropyl methylcellulose inobva yacheneswa uye yakaomeswa kuita hupfu chena.

4. Kudzora Unhu

Kudzora kwehutano chikamu chakakosha chekugadzirwa kweHPMC. Hunhu hwechigadzirwa hunotarwa nekuchena kweselulosi, dhigirii rekutsiviwa kweboka rehydroxypropyl, uye dhigirii rekutsiviwa kweboka remethyl. Kuchena kweselulosi kunotsanangurwa nekuyedza viscosity yemhinduro, nepo dhigirii rekutsinhanisa inotarwa nekuyedza dhigirii rehydrolysis yehydroxypropyl methylcellulose.

5. Packaging

HPMC inowanzoiswa mumabhegi kana zvigubhu. Mabhegi acho anowanzo gadzirwa ne polyethylene kana polypropylene, nepo madhiramu anowanzo gadzirwa nesimbi kana epurasitiki. Iyo yekurongedza zvinhu inofanira kusarudzwa kuti ive nechokwadi chekuti chigadzirwa chakadzivirirwa kubva kune unyoro uye zvimwe zvakatipoteredza zvinhu.

6. Kuchengeta

HPMC inofanira kuchengetwa munzvimbo inotonhorera, yakaoma, kure nechiedza chezuva uye zvimwe zvinopisa. Chigadzirwa chacho chinofanirawo kuchengetedzwa kubva kune unyoro uye zvimwe zvakatipoteredza.

7. Mhedziso

HPMC inoshandiswa zvakanyanya mumvura-soluble polymer inotorwa kubva ku cellulose. Inoshandiswa mumaindasitiri akasiyana siyana, anosanganisira ezvekudya, emishonga, uye maindasitiri ezvekuzora. Maitiro ekugadzira eHPMC anosanganisira matanho akati wandei, anosanganisira kurapwa kwe cellulose nealkali, kuita kwealkali cellulose ine methyl chloride uye propylene oxide, uye kucheneswa nekuomesa kwehydroxypropyl methylcellulose. Kudzora kwehutano chikamu chakakosha chekugadzira, uye chigadzirwa chinofanira kuchengetwa munzvimbo inotonhorera, yakaoma, kure nechiedza chezuva uye zvimwe zvinopisa.