Hydroxypropyl methylcellulose (HPMC) bụ ihe dị mkpa na-abụghị ionic cellulose ether nwere nnukwu ngwa na ihe owuwu ụlọ. A na-eme ya site na ihe polymer eke sitere na usoro ọgwụgwọ kemịkal. Ọ nwere ihe dị iche iche magburu onwe ya na uru ma nwee ike imeziwanye arụmọrụ nke ihe ụlọ.
1. Njirimara ndị bụ isi nke hydroxypropyl methylcellulose
ndim mmetụta
Otu n'ime ọrụ kachasị mkpa nke HPMC na ihe owuwu ụlọ bụ ịgba. Ọ nwere ike ịbawanye viscosity nke ihe ụlọ dị ka ngwa agha na mkpuchi, na-eme ka ha nwee ike ịrụ ọrụ nke ọma na njigide mmiri n'oge eji. Site n'ịgbanwe usoro onunu ogwu nke HPMC, enwere ike nweta njikwa nke ọma nke viscosity ihe iji gboo mkpa ihe owuwu dị iche iche.
Njide mmiri
HPMC nwere ezigbo njide mmiri ma nwee ike igbochi oke mmiri mmiri. Nke a dị mkpa karịsịa na ebe akọrọ na okpomọkụ dị elu iji hụ na ngwa agha ahụ nwere mmiri zuru ezu maka mmeghachi omume hydration n'oge usoro ọgwụgwọ, na-ezere ihicha na nkwụsịtụ, na imeziwanye ike ikpeazụ na ịdịte aka nke ihe.
Mmanu mmanu
HPMC na-emepụta ngwọta colloidal mgbe agbazere ya na mmiri, nke nwere mmetụta mmanu mmanu. Nke a na-eme ka ihe ụlọ ahụ dị mfe itinye ma gbasaa n'oge a na-eji ya eme ihe, na-eme ka arụ ọrụ ụlọ na-arụ ọrụ na ịdị nro n'elu. Na mgbakwunye, ezigbo mmanu mmanu nwere ike ibelata ihe eji arụ ụlọ.
Nkwusioru
HPMC nwere ike imeziwanye ikike nkwusioru nke ihe siri ike na mmiri mmiri ma gbochie delamination ihe. Nke a dị oke egwu mgbe ị na-emepụta na iji ihe ndị dị ka ngwa agha na mkpuchi iji hụ na ịdị n'otu na nkwụsi ike nke ngwaahịa ahụ na nkwụsi ike nke mmetụta ụlọ.
Ihe na-emepụta ihe nkiri
HPMC nwere ezigbo ihe na-emepụta ihe nkiri ma nwee ike ịmepụta otu ihe nkiri mgbe akpọnwụchara. Ihe nkiri a nwere ogo ụfọdụ nke ike na ngbanwe, ma nwee ike ichebe elu nke ihe ahụ nke ọma ma welie ihe mgbochi ya na nkwụsị mgbawa.
2. Uru nke hydroxypropyl methylcellulose na ihe owuwu ụlọ
Melite arụmọrụ ihe owuwu
N'ihi na HPMC's thickening, mmiri njide, mmanu na ihe ndị ọzọ, ihe ụlọ agbakwunyere na HPMC na-egosi mma workability n'oge a na-ewu usoro. Dịka ọmụmaatụ, na plasta ngwa agha, HPMC nwere ike imeziwanye adhesion na sag resistance nke ngwa agha ahụ, na-eme ka ngwa agha dị mfe iji rụọ ọrụ na ibelata mkpofu na ịrụ ọrụ.
Kwalite ihe onwunwe
HPMC nwere ike imeziwanye ike na ịdịte aka nke ihe ụlọ. Njide mmiri ya dị mma na-eme ka mmeghachi omume hydration nke ngwa agha ahụ na-arụ ọrụ nke ọma, si otú a na-eme ka ike na nkwụsị nke ihe ahụ dịkwuo mma. N'otu oge ahụ, ihe nkiri na-emepụta ihe nkiri na nkwụsịtụ na-eme ka elu nke ihe ahụ dị nro na-eme ka ọ dịkwuo mma, na-eme ka ọkpụkpụ na-eyi ya na mmetụta ịchọ mma.
Melite arụmọrụ gburugburu ebe obibi
HPMC bụ nonionic cellulose ether bụ enyi na gburugburu ebe obibi. Iji HPMC eme ihe eji ewu ụlọ nwere ike ibelata ojiji ihe mgbakwunye kemịkalụ na-emerụ ahụ ma belata mmetọ gburugburu ebe obibi. Tụkwasị na nke ahụ, ezigbo njide mmiri na mmanu nke HPMC nwekwara ike ibelata ọnụ ọgụgụ simenti, na-ebelata ikuku carbon na oriri ihe onwunwe.
Melite arụmọrụ akụ na ụba
HPMC nwere ike imeziwanye arụmọrụ ihe owuwu wee belata oge owuwu na ụgwọ ọrụ. Ezigbo njide mmiri ya na ihe nkwusioru nwekwara ike ibelata ihe eji eme ihe na ihe mkpofu ma melite iji ihe eji eme ihe. Ndị a nwere ike belata ọnụ ahịa ihe owuwu ma melite uru akụ na ụba.
Enwere ike imeghari
A na-eji HPMC n'ọtụtụ ebe dị iche iche nke ihe owuwu ụlọ, gụnyere ngwa ngwa akọrọ, ntụ ntụ putty, mkpuchi, adhesives tile, wdg. Ọrụ ya dị mma na-enye ya ohere ịrụ ọrụ magburu onwe ya n'ọnọdụ dị iche iche ngwa ma na-agbanwe agbanwe.
Dị ka ihe mgbakwunye ihe owuwu ụlọ dị mkpa, hydroxypropyl methylcellulose na-adabere n'ịdị mma ya dị oke mma, njide mmiri, mmanye mmanu, nkwusioru na ihe ndị na-emepụta ihe nkiri iji meziwanye ọrụ ihe owuwu, kwalite arụmọrụ ihe, melite arụmọrụ gburugburu ebe obibi ma melite uru akụ na ụba. O gosila uru dị ịrịba ama na akụkụ ndị ọzọ. Site na mmepe na-aga n'ihu nke ụlọ ọrụ ihe owuwu yana mmụba na-achọsi ike maka ịrụ ọrụ dị elu na ihe omume enyi na gburugburu ebe obibi, atụmanya ngwa nke HPMC na ihe owuwu ụlọ ga-aba ụba.
Oge nzipu: Jul-26-2024