4 Basic Kugadzira Tekinoroji uye Mafomula eHPMC, Usapotsa!

Hydroxypropyl methylcellulose (HPMC) ipolymer inoshandiswa zvakasiyana-siyana inoshandiswa zvakanyanya mumaindasitiri akasiyana, kusanganisira kuvaka, mishonga, uye maindasitiri ezvekudya.HPMC inogadzirwa ichishandisa akasiyana matekinoroji ekugadzira uye magadzirirwo, zvichienderana neyakagadzirirwa application.Muchikamu chino, tichaongorora mana ekutanga ekugadzira matekinoroji uye mafomula eHPMC ausingafanirwe kupotsa.

1. Etherification Tekinoroji Tekinoroji etherification ndiyo inonyanya kushandiswa tekinoroji yekugadzira yeHPMC.Mukuita uku, cellulose inobatwa nealkali, senge sodium hydroxide, kugadzira alkali cellulose.Iyo alkali cellulose inozoitwa nepropylene oxide uye methyl chloride kugadzira HPMC.Iyo dhigirii yekutsiva (DS) yeHPMC inogona kudzorwa nekugadzirisa reshiyo yepropylene oxide kune methyl chloride panguva yekuita.

Iyo formula yeHPMC inogadzirwa uchishandisa etherification tekinoroji ndeiyi:

Cellulose + Alkali → Alkali Cellulose Alkali Cellulose + Propylene Oxide + Methyl Chloride → HPMC

2. Kupfapfaidza Kuomesa Tekinoroji Iyo yekupfapfaidza yekuomesa tekinoroji ndiyo yakanyanya kugadzirwa tekinoroji yeHPMC.Muchiitiko ichi, cellulose inonyungudutswa mune alkali solution uye yobva yaitwa nepropylene oxide uye methyl chloride.Mushonga weHPMC unobva wapfapfaidzwa wakaomeswa kugadzira HPMC hupfu.

Iyo formula yeHPMC inogadzirwa uchishandisa spray drying tekinoroji ndeiyi:

Cellulose + Alkali → Alkali Cellulose Alkali Cellulose + Propylene Oxide + Methyl Chloride → HPMC Solution HPMC Solution + Spray Drying → HPMC Powder

3. Suspension Polymerization Technology Iyo yekumisa polymerization tekinoroji imwe tekinoroji yekugadzira yeHPMC.Mukuita uku, cellulose inomiswa musolvent yobva yaitwa nepropylene oxide uye methyl chloride pamberi pepolymerization initiator kuumba HPMC.

Iyo formula yeHPMC inogadzirwa uchishandisa suspension polymerization tekinoroji ndeiyi:

Cellulose + Solvent + Polymerization Initiator → Cellulose Suspension Cellulose Kumiswa + Propylene Oxide + Methyl Chloride → HPMC

4. Solution Polymerization Technology Iyo mhinduro yepolymerization tekinoroji ichangoburwa tekinoroji yekugadzira yeHPMC.Mukuita uku, cellulose inonyungudutswa musolvent yobva yaitwa nepropylene oxide uye methyl chloride pamberi pepolymerization initiator kuumba HPMC.

Iyo formula yeHPMC inogadzirwa uchishandisa mhinduro polymerization tekinoroji ndeiyi:

Cellulose + Solvent + Polymerization Initiator → Cellulose Solution Cellulose Solution + Propylene Oxide + Methyl Chloride → HPMC

Mukupedzisa, HPMC i polymer inoshanda zvakasiyana-siyana iyo inogadzirwa ichishandisa akasiyana siyana ekugadzira matekinoroji uye magadzirirwo, zvichienderana neyakagadzirirwa kushandiswa.Iwo mana ekutanga matekinoroji ekugadzira uye mafomula eHPMC anosanganisira etherification tekinoroji, pfapfaidzo yekuomesa tekinoroji, kumiswa kwepolymerization tekinoroji, uye mhinduro yepolymerization tekinoroji.Kunzwisisa tekinoroji yekugadzira uye fomula yeHPMC inogona kubatsira vagadziri kusarudza iyo chaiyo HPMC chigadzirwa kune yavo chaiyo maapplication.