Hydroxypropyl methyl cellulose (HPMC) bụ polymer vasatail nke a na-ejikarị eme ihe n'ọtụtụ ụlọ ọrụ, gụnyere nri, ọgwụ na ihe owuwu. Ọ bụ ihe na-emepụta ihe na-emepụta ihe nke cellulose, nke bụ polymer eke dị na mgbidi cell osisi. A na-eme HPMC site na iji hydroxypropyl na otu methyl na-agbanwe cellulose kemịkalụ, nke na-eme ka mmiri solubility ya, viscosity, na ihe ndị ọzọ. N'isiokwu a, anyị ga-atụle ihe onwunwe nke HPMC na ngwa ya na ụlọ ọrụ dị iche iche.

Mmiri Solubility

Otu n'ime ihe kachasị mkpa nke HPMC bụ mmiri solubility ya. HPMC na-agbaze ngwa ngwa n'ime mmiri iji mepụta ngwọta doro anya na viscous. Ogo nke solubility dabere na ogo nnọchi (DS) nke HPMC. DS na-ezo aka ọnụ ọgụgụ nke hydroxypropyl na methyl otu ndị na-agbakwunyere na nke ọ bụla cellulose molekul. Ka DS dị elu, ka HPMC na-agbaze mmiri. A na-ahụta HPMC nwere DS nke 1.8 ma ọ bụ karịa ka ọ na-agbaze mmiri.

Viscosity

Ihe ọzọ dị mkpa nke HPMC bụ viscosity ya. HPMC bụ polima viscous nke ukwuu, nke pụtara na ọ nwere oke, sirop na-agbanwe agbanwe. Viscosity nke HPMC na-adabere n'ọtụtụ ihe, gụnyere DS, arọ molecular, na ntinye nke polymer na ngwọta. DS dị elu na ịdị arọ molekụla na-ebute viscosity dị elu. Enwere ike imezi viscosity nke HPMC site n'ịgbanwe ntinye nke polymer na ngwọta.

Thermal kwụsie ike

HPMC kwụsiri ike ma nwee ike iguzogide okpomọkụ ruo 200 Celsius na-enweghị mmebi dị ukwuu. Nke a na-eme ka ọ dị mma maka iji ọtụtụ usoro mmepụta ihe na-agụnye okpomọkụ dị elu, dị ka ihicha ịgbasa na extrusion. HPMC nwekwara ezigbo iguzogide acid na bases, nke na-eme ka ọ dị mma maka ojiji na gburugburu acidic ma ọ bụ alkaline.

Ihe Nrụpụta Ihe nkiri

HPMC nwere ọmarịcha ihe na-emepụta ihe nkiri, nke na-eme ka ọ baa uru na ngwa dị iche iche. HPMC nwere ike ịmepụta ihe nkiri siri ike, na-agbanwe agbanwe nke na-eguzogide mmiri, okpomọkụ, na kemịkal. Nke a na-eme ka ọ baa uru na ụlọ ọrụ ọgwụ maka mkpuchi mbadamba na capsules iji meziwanye ọdịdị ha na nkwụsi ike. A pụkwara iji HPMC na ụlọ ọrụ nri mepụta ihe nkiri oriri nke enwere ike iji chekwaa ma chekwaa ngwaahịa nri.

Njirimara nrapado

HPMC nwere ezigbo nrapado, nke na-eme ka ọ baa uru na ụlọ ọrụ ihe owuwu. Enwere ike iji HPMC mee ihe dị ka ihe nkedo na ngwaahịa simenti, dị ka ngwa agha na grout. A pụkwara iji ya mee ihe dị ka ihe na-esi ísì ụtọ na nrapado taịlị na ihe nkwụnye nkwonkwo. HPMC na-eme ka arụ ọrụ na arụmọrụ nke ngwaahịa ndị a dịkwuo mma site n'inye ezigbo adhesion na njide mmiri.

Ngwa nke HPMC

HPMC nwere ọtụtụ ngwa na ụlọ ọrụ dị iche iche, gụnyere:

Ụlọ ọrụ nri: A na-eji HPMC eme ihe dị ka ihe na-eku, stabilizer, na emulsifier n'ọtụtụ ngwaahịa nri, dị ka sauces, mgbakwasa, na ngwa esi nri. Enwere ike iji ya mepụta ihe nkiri oriri na mkpuchi.

Ụlọ ọrụ na-emepụta ọgwụ: A na-eji HPMC dị ka mbadamba nkume na ihe mkpuchi capsule, yana ihe nkedo, nke na-agbasa, na onye na-ahapụ ya na nhazi ọgwụ.

Ụlọ ọrụ ịchọ mma: A na-eji HPMC eme ihe dị ka ihe na-esikwu ike na nkwụsi ike n'ọtụtụ ngwaahịa ịchọ mma, dị ka lotions, creams, na shampoos.

Ụlọ ọrụ ihe owuwu: A na-eji HPMC dị ka ihe nkedo, ihe na-esi ísì, na onye na-ejigide mmiri na ngwaahịa ndị dabeere na ciment, dị ka ngwa agha, grout, na tile adhesives.

Mmechi

Hydroxypropyl methyl cellulose (HPMC) bụ polymer vasatail nwere ọtụtụ uru bara uru, gụnyere mmiri solubility, viscosity, thermal nkwụsi ike, ihe na-emepụta fim, na nrapado Njirimara. A na-eji HPMC n'ọtụtụ ụlọ ọrụ, gụnyere nri, ọgwụ, ihe ịchọ mma, na ihe owuwu. Ikike ya ịmepụta ihe nkiri siri ike, na-agbanwe agbanwe na imeziwanye arụmọrụ na arụmọrụ nke ngwaahịa dị iche iche na-eme ka ọ bụrụ ihe bara uru n'ọtụtụ nhazi. HPMC dịkwa mma maka iji ya na ngwaahịa nri na ọgwụ yana ndị ụlọ ọrụ na-ahụ maka njikwa n'ụwa niile kwadoro ya. Dị ka nke a, HPMC bụ polymer dị mkpa na nke a na-ejikarị eme ihe nke na-arụ ọrụ dị egwu n'ọtụtụ ngwa dị iche iche.