Ịghọta ụkpụrụ kemịkalụ HPMC

HPMC, ma ọ bụ hydroxypropyl methylcellulose, bụ polymer nke dabeere na cellulose nke a na-ejikarị eme ihe n'ọtụtụ ụlọ ọrụ gụnyere ọgwụ, ihe ịchọ mma, na mmepụta nri. Ịghọta usoro kemịkalụ nke HPMC dị mkpa maka ịkwalite akụrụngwa ya na arụmọrụ ya na ngwa dị iche iche.

Usoro kemịkalụ nke HPMC bụ ihe abụọ bụ isi mejupụtara: ọkpụkpụ azụ cellulose na hydroxypropyl na methyl substituents.

Cellulose bụ polymer na-emekarị nke mejupụtara glucose monomers jikọtara ọnụ site na njikọ glycosidic. Akpụkpọ azụ cellulose nke HPMC sitere na pulp osisi ma ọ bụ linters owu, nke na-enweta usoro mgbanwe kemịkalụ iji mepụta polymer na-agbaze mmiri.

A na-agbakwunye ihe ndị hydroxypropyl na methyl n'ọkpụkpụ azụ cellulose iji melite solubility na arụmọrụ nke HPMC. A na-agbakwunye otu Hydroxypropyl site na iji ọkpụkpụ azụ cellulose na-emeghachi propylene oxide, ebe a na-agbakwunye otu methyl site na mmeghachi omume methanol na otu hydroxypropyl.

Ogo nke nnọchi (DS) nke HPMC na-ezo aka na ọnụ ọgụgụ nke hydroxypropyl na methyl otu ndị agbakwunyere na ọkpụkpụ azụ cellulose. DS nwere ike ịdị iche dabere na ngwa na ihe achọrọ nke HPMC. HPMC nwere DS dị elu ga-enwe oke solubility na viscosity, ebe HPMC nwere DS dị ala ga-enwe obere solubility na viscosity.

A na-ejikarị HPMC eme ihe dị ka thickener, emulsifier, na stabilizer na ngwa dị iche iche n'ihi njirimara pụrụ iche ya. Ọ bụ mmiri na-agbaze, nke na-adịghị egbu egbu, na ihe na-eme ka ọ bụrụ ihe na-adọrọ adọrọ na-adọrọ adọrọ na polymers sịntetik ndị ọzọ. Na mgbakwunye, usoro mgbanwe kemịkalụ eji emepụta HPMC na-enye ohere maka njikwa nke ọma na akụrụngwa ya, na-eme ka ọ bụrụ polymer dị iche iche maka ọtụtụ ngwa dị iche iche.

Na nchịkọta, ịghọta usoro kemịkalụ nke HPMC dị mkpa maka ịkwalite njirimara ya na arụmọrụ ya na ngwa dị iche iche. Ọkpụkpụ azụ cellulose na hydroxypropyl na methyl bụ akụkụ bụ isi nke HPMC, ogo ngbanwe nwere ike ịdị iche dabere na ngwa a kapịrị ọnụ. Ngwongwo pụrụ iche nke HPMC na-eme ka ọ bụrụ polymer na-adọrọ adọrọ ma mara mma maka ọtụtụ ụlọ ọrụ dị iche iche.