Chii chinonzi hypromellose chinogadzirwa kubva?

Hypromellose, inozivikanwawo se hydroxypropyl methylcellulose (HPMC), is semisynthetic polymer inotorwa kubva ku cellulose, inova inongoitika polima inowanikwa musero madziro ezvirimwa.Heino maitiro ekugadzira hypromellose:

1. Cellulose Sourcing: Maitiro anotanga nekuchera cellulose, iyo inogona kuwanikwa kubva kune dzakasiyana siyana zvirimwa zvakaita sehuni pulp, machira ekotoni, kana zvimwe zvirimwa zvine fibrous.Cellulose inowanzo kutorwa kubva kune aya masosi kuburikidza nenhevedzano yemakemikari nemakanika maitiro kuti uwane yakacheneswa cellulose zvinhu.
2. Etherification: Iyo yakacheneswa cellulose inopinda maitiro ekugadzirisa makemikari anonzi etherification, uko hydroxypropyl uye methyl mapoka anounzwa pane cellulose musana.Kugadziriswa uku kunowanikwa nekuita cellulose nepropylene oxide (kuunza hydroxypropyl mapoka) uye methyl chloride (kuunza methyl mapoka) pasi pemamiriro ekudzora.
3. Kucheneswa uye Kugadziriswa: Mushure me etherification, chigadzirwa chinoguma chinoitwa kucheneswa kuti chibvise kusvibiswa uye ne-zvigadzirwa kubva pane maitiro.Iyo yakacheneswa hypromellose inozogadziriswa kuita akasiyana siyana sehupfu, magranules, kana mhinduro, zvichienderana nekushandiswa kwayo.
4. Kudzora Hunhu: Munguva yese yekugadzira, matanho ekudzora emhando anoitwa kuti ave nechokwadi chekuchena, kuwirirana, uye kushanda kwechigadzirwa che hypromellose.Izvi zvinosanganisira kuyedzwa kwema parameter senge mamorekuru huremu, viscosity, solubility, uye zvimwe zvemuviri nemakemikari zvivakwa.
5. Kurongedza uye Kugovera: Kana chigadzirwa che hypromellose chasangana nemhando yemhando, chinoiswa mumidziyo yakakodzera uye chigovaniswa kune akasiyana maindasitiri kuti ashandiswe mumishonga, zvigadzirwa zvekudya, zvekuzora, uye zvimwe zvinoshandiswa.

Pakazere, hypromellose inogadzirwa kuburikidza nekutevedzana kweanodzorwa kemikari maitiro uye nhanho dzekuchenesa dzinoiswa kune cellulose, zvichikonzera kuita zvakasiyana uye kushandiswa zvakanyanya polymer ine akasiyana mashandisirwo mumaindasitiri akasiyana.