4 Litheknoloji tsa Tlhahiso ea Motheo le Liforomo tsa HPMC, Se ke oa fetoa!

Hydroxypropyl methylcellulose (HPMC) ke polymer e feto-fetohang e sebelisoang haholo liindastering tse fapaneng, ho kenyeletsoa liindasteri tsa kaho, tsa meriana le tsa lijo.HPMC e hlahiswa ho sebediswa mahlale a fapaneng a tlhahiso le dibopeho, ho itshetlehile ka tshebediso e rerilweng.Sehloohong sena, re tla hlahloba mekhoa e mene ea tlhahiso ea HPMC eo u sa lokelang ho e fosa.

1. Theknoloji ea Etherification Theknoloji ea etherification ke theknoloji e sebelisoang haholo ea tlhahiso ea HPMC.Ts'ebetsong ena, cellulose e phekoloa ka alkali, joalo ka sodium hydroxide, ho etsa alkali cellulose.Alkali cellulose e ntan'o itšoara ka propylene oxide le methyl chloride ho theha HPMC.The degree of substitution (DS) ea HPMC e ka laoloa ka ho lokisa karo-karolelano ea propylene oxide ho methyl chloride nakong ea karabelo.

Foromo ea HPMC e hlahisoang ho sebelisoa theknoloji ea etherification ke:

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

2. Theknoloji ea ho omisa ka spray Theknoloji ea ho omisa ke theknoloji e tsoetseng pele ea tlhahiso ea HPMC.Ts'ebetsong ena, selulose e qhibiliha ka tharollo ea alkali ebe e sebetsa ka propylene oxide le methyl chloride.Tharollo e hlahisoang ke HPMC e ntan'o fafatsa e omisitsoe ho hlahisa phofo ea HPMC.

Foromo ea HPMC e hlahisoang ho sebelisoa theknoloji ea ho omisa spray ke:

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

3. Theknoloji ea Suspension Polymerization Theknoloji ea ho emisa polymerization ke theknoloji e 'ngoe ea tlhahiso bakeng sa HPMC.Ts'ebetsong ena, selulose e fanyehoa ka har'a motsoako ebe e sebetsa ka propylene oxide le methyl chloride ka pel'a mochine oa polymerization ho theha HPMC.

Foromo ea HPMC e hlahisoang ho sebelisoa theknoloji ea polymerization ea ho emisa ke:

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

4. Tharollo Polymerization Technology Thekenoloji ea tharollo ea polymerization ke theknoloji e batlang e le ncha ea tlhahiso bakeng sa HPMC.Ts'ebetsong ena, selulose e qhibilihisoa ka har'a motsoako ebe e sebetsa ka propylene oxide le methyl chloride ka pel'a mokelikeli oa polymerization ho theha HPMC.

Foromo ea HPMC e hlahisoang ho sebelisoa theknoloji ea polymerization ea tharollo ke:

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

Qetellong, HPMC ke polymer e feto-fetohang e hlahisoang ho sebelisoa mahlale a fapaneng a tlhahiso le litlhophiso, ho latela ts'ebeliso e reriloeng.Theknoloji e mene ea mantlha ea tlhahiso le liforomo tsa HPMC li kenyelletsa theknoloji ea etherification, theknoloji ea ho omisa, theknoloji ea ho emisa polymerization, le theknoloji ea tharollo ea polymerization.Ho utloisisa theknoloji ea tlhahiso le foromo ea HPMC ho ka thusa bahlahisi ho khetha sehlahisoa se nepahetseng sa HPMC bakeng sa lits'ebetso tsa bona tse ikhethileng.