Gịnị bụ usoro omume nke HPMC?

HPMC, ma ọ bụ hydroxypropyl methylcellulose, bụ sịntetik, mmiri na-agbaze polima sitere na cellulose. A na-eji ya na ngwa dị iche iche, gụnyere nri, ọgwụ, ihe ịchọ mma, na ngwaahịa ụlọ ọrụ mmepụta ihe. HPMC bụ polymer na-abụghị ionic, viscosity na-akwalite viscosity nke enwere ike iji mee ka sie ike, kwụsie ike, ma kwụsịtụ ọtụtụ ngwa nri.

Usoro nke omume nke HPMC dabeere na ike ya na-emepụta hydrogen bonds na mmiri molekul, na-eke a netwọk nke intermolecular agha. Netwọk a nke njikọ hydrogen na-emepụta matriks nwere akụkụ atọ nke nwere ike ijide ma jide ụmụ irighiri mmiri. Matriks a na-ahụ maka njirimara na-akwalite viscosity nke HPMC, yana ike ya ịkwụsịtụ na ịkwado ihe ndị e ji eme ihe.

HPMC nwekwara nnukwu mmekọrịta maka lipids, nke na-enye ya ohere ịmepụta ihe mgbochi gburugburu ihe ndị sitere na mmanụ. Ihe mgbochi a na-enyere aka igbochi ihe ndị na-emepụta mmanụ na-ekewapụ site na mmiri mmiri, si otú a na-eme ka nkwụsi ike nke nhazi ahụ dịkwuo elu. Na mgbakwunye, mgbochi nchebe nke HPMC mepụtara na-enyere aka ibelata ọnụego nke evaporation nke ihe ndị sitere na mmanụ, nke nwere ike inye aka ịgbatị ndụ nchekwa nke nhazi ahụ.

N'ikpeazụ, HPMC nwekwara ike na-eme ihe dị ka a surfactant, nke na-enyere aka belata elu esemokwu nke aqueous ngwọta. Nke a nwere ike inye aka melite wetting na mgbasa nke ihe ndị na-emepụta ihe, nke nwere ike ime ka nkwụsi ike na arụmọrụ nke nhazi ahụ dịkwuo mma.

Na nchịkọta, usoro ihe omume nke HPMC dabeere na ikike ya ịmepụta njikọ hydrogen na mmiri mmiri, na-emepụta netwọk nke ndị agha intermolecular nke nwere ike ọnyà ma jide mmiri mmiri. Netwọk nke njikọ hydrogen bụ maka njirimara na-akwalite viscosity nke HPMC, yana ike ya ịkwụsịtụ na ịkwado ihe ndị e ji eme ihe. Na mgbakwunye, HPMC nwere oke mmekọrịta maka lipids, nke na-enye ya ohere ịmepụta ihe mgbochi gburugburu ihe ndị sitere na mmanụ. N'ikpeazụ, HPMC nwekwara ike na-eme ihe dị ka a surfactant, nke na-enyere aka belata elu esemokwu nke aqueous ngwọta. Ngwongwo ndị a niile na-eme HPMC ka ọ bụrụ ihe na-arụ ọrụ nke ọma na nke nwere ọtụtụ ngwa.