Ihe mgbakwunye ụlọ Hydroxypropyl Methylcellulose Mmiri oyi gbazere

Hydroxypropyl methylcellulose (HPMC) bụ ọkara sịntetik, polymer soluble mmiri nke sitere na cellulose. A na-eji ya eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche dị ka ọgwụ, nri, ihe ịchọ mma, na ihe owuwu n'ihi ihe ndị magburu onwe ya, gụnyere ikike ịmepụta ihe nkiri dị mma, ịgbakọ, njide, na njide mmiri.

Otu n'ime ihe kachasị mkpa nke HPMC bụ ikike ya ịgbaze na mmiri oyi, nke na-eme ka ọ bụrụ nhọrọ na-ewu ewu na ngwa ndị chọrọ usoro mgbasa ozi ngwa ngwa na ngwa ngwa. N'isiokwu a, anyị ga-enyocha njirimara nke HPMC, usoro nke mmiri oyi na-eme ka mmiri dị jụụ, na ngwa ya.

Njirimara nke Hydroxypropyl Methylcellulose

HPMC bụ ntụ ntụ na-acha ọcha ma na-acha ọcha nke na-esighị isi, na-enweghị ụtọ, na-adịghị egbu egbu. Ọ nwere nkwụsi ike nke okpomọkụ dị mma ma nwee ike iguzogide ọnụ ọgụgụ pH dịgasị iche iche. HPMC na-agbaze n'ime mmiri wee mepụta ngwọta doro anya, viscous nwere pH dị ntakịrị acidic.

Enwere ike gbanwee njirimara anụ ahụ na kemịkal nke HPMC site n'ịgbanwe ogo nke nnọchi ya (DS) na ịdị arọ ya. DS na-ezo aka na ọnụ ọgụgụ nke hydroxyl dị n'ime molekul cellulose nke ejiri otu methyl ma ọ bụ hydroxypropyl dochie. Ka DS dị elu, ọnụ ọgụgụ nke ndị nọchiri anya, na-eme ka ịdị arọ dị ala na mmiri dị elu.

Arọ molekụla nke HPMC nwekwara ike imetụta ihe ndị solubility, viscosity, na gelation Njirimara. Arọ molekụla dị elu HPMC na-achọ inwe viscosity dị elu na ike jel, ebe ịdị arọ molekụla dị ala HPMC nwere mma solubility na mmiri oyi.

Usoro nke Solubility Mmiri oyi

A na-ekwukarị solubility mmiri oyi nke HPMC na usoro abụọ: njikọ hydrogen na mgbochi siri ike.

Njikọ hydrogen na-eme mgbe otu hydroxyl dị na molekul HPMC na-emekọrịta ihe na ụmụ irighiri mmiri site na njikọ hydrogen. Otu hydroxypropyl na methyl dị na HPMC nwekwara ike sonye na njikọ hydrogen na ụmụ irighiri mmiri, na-eme ka ike ahụ dịkwuo elu.

Ihe mgbochi steric na-ezo aka na mgbochi anụ ahụ nke agbụ cellulose site na nnukwu hydroxypropyl na methyl otu. Mgbochi ahụ siri ike na-egbochi ụmụ irighiri ihe HPMC imepụta mmekọrịta dị n'etiti intermolecular siri ike, na-ebute mmụba mmiri dị mma.

Ngwa nke Hydroxypropyl Methylcellulose

A na-eji HPMC eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche n'ihi ihe ndị magburu onwe ya. Nke a bụ ụfọdụ ngwa ya:

Pharmaceuticals: A na-ejikarị HPMC eme ihe dị ka ihe na-ekekọta, ihe na-ekesa, na onye na-emepụta ihe nkiri na mbadamba ọgwụ na capsules. A na-ejikwa ya dị ka thickener na stabilizer na ophthalmic na imi formulations.

Nri: A na-eji HPMC eme ihe dị ka thickener, emulsifier, na stabilizer n'ụdị nri dị iche iche dị ka ice cream, yogọt, na akwa salad. A na-ejikwa ya dị ka ihe mkpuchi maka mkpụrụ osisi na akwụkwọ nri iji meziwanye ọdịdị ha na ndụ nchekwa.

Ihe ịchọ mma: A na-eji HPMC dị ka onye na-eku ume, emulsifier, na onye na-emepụta ihe nkiri na ihe ịchọ mma na ngwaahịa nlekọta onwe onye dị ka lotions, shampoos, na conditioners.

Ihe owuwu: A na-eji HPMC mee ihe dị ka ihe na-ejigide mmiri, ihe na-ekpu mmiri, na ihe nkedo n'ihe simenti dị ka ngwa agha na plasta. Ọ na-eme ka arụ ọrụ dịkwuo mma, na-ebelata mgbawa, ma na-eme ka adhesion dịkwuo elu.

Ngwa ndị ọzọ: A na-ejikwa HPMC na ngwa ndị ọzọ dị iche iche dị ka mbipụta textile, agba na mkpuchi, na ink.