1. Hydroxypropyl methylcellulose (HPMC)bụ ether cellulose na-abụghị ionic nke sitere na eriri owu eke ma ọ bụ pulp osisi site na usoro nhazi kemịkalụ dị ka alkalization, etherification, na nchacha. Dị ka viscosity ya si dị, HPMC nwere ike kewaa n'ime nnukwu viscosity, ọkara viscosity na ngwaahịa viscosity dị ala. N'ime ha, obere viscosity HPMC na-ọtụtụ ebe na-eji n'ọtụtụ ubi n'ihi na ya magburu onwe mmiri solubility, film-akpụ ihe onwunwe, mmanu, na dispersion kwụsie ike.
2. Basic e ji mara ala viscosity HPMC
Mmiri solubility: Low viscosity HPMC na-adị mfe soluble na mmiri oyi na nwere ike na-etolite a transperent ma ọ bụ translucent viscous ngwọta, ma ọ bụ insoluble na mmiri ọkụ na ọtụtụ organic solvents.
Viscosity dị ala: E jiri ya tụnyere HPMC nke ọkara na elu viscosity, ngwọta ya nwere viscosity dị ala, na-abụkarị 5-100mPa·s (2% ngwọta mmiri, 25 ° C).
Nkwụsi ike: Ọ nwere ezigbo nkwụsi ike nke kemịkalụ, ọ na-anabata acid na alkalis, ma nwee ike ịnọgide na-arụ ọrụ kwụsiri ike na oke pH.
Ihe na-emepụta ihe nkiri: Ọ nwere ike ịmepụta ihe nkiri otu n'elu ihe dị iche iche dị iche iche, na-enwe ihe mgbochi dị mma na nrapado.
Mmanya: Enwere ike iji ya dị ka mmanu iji belata esemokwu ma melite arụmọrụ nke ihe.
Ọrụ dị n'elu: O nwere ụfọdụ emulsification na ike ịgbasa ma enwere ike iji ya na usoro nkwụsịtụ nkwusioru.
3. Ngwa ngwa nke obere viscosity HPMC
Ihe owuwu ụlọ
Mortar na putty: N'ime ngwa agha akọrọ, ngwa agha na-eme onwe ya na plasta, HPMC nwere obere viscosity nwere ike imeziwanye arụmọrụ ihe owuwu nke ọma, meziwanye mmiri na mmanu mmanu, welie njigide mmiri nke ngwa agha, ma gbochie mgbawa na delamination.
Ihe nrapado taịlị: A na-eji ya dị ka ihe na-agbakọ na ihe nkedo iji kwalite ịdị mma ụlọ na ike njikọta.
Mkpuchi na agba: Dị ka ihe na-eme ka ọkpụkpụ na nkwusioru stabilizer, ọ na-eme ka mkpuchi ahụ bụrụ otu, na-egbochi nsị pigmenti, ma na-eme ka ọ dị nro na nhazi ọkwa.
Ọgwụ na nri
Ihe enyemaka ọgwụ: Enwere ike iji HPMC nwere viscosity dị ala na mkpuchi mbadamba, ihe nkwusioru na-ahapụ, nkwusioru, na ihe ndochi capsule na ụlọ ọrụ ọgwụ iji kwụsie ike, dozie, na mwepụta nwayọ.
Ihe mgbakwunye nri: ejiri ya dị ka ndị na-agbapụta, emulsifiers, stabilizers na nhazi nri, dị ka imeziwanye uto na udidi n'ime ngwaahịa esiri esi, ngwaahịa mmiri ara ehi na ihe ọṅụṅụ.
Ihe ịchọ mma na ngwaahịa nlekọta onwe onye
Na ngwaahịa nlekọta anụ ahụ, ihe na-ehicha ihu, ihe mkpuchi, gels na ngwaahịa ndị ọzọ, HPMC nwere ike iji mee ihe dị ka ihe na-eme ka ọ dịkwuo mma na moisturizer iji meziwanye udidi ngwaahịa, mee ka ọ dịkwuo mfe itinye na ịkwalite nkasi obi anụ ahụ.
Ceramics na ime akwụkwọ
N'ime ụlọ ọrụ seramiiki, enwere ike iji HPMC mee ihe dị ka mmanụ mmanu na enyemaka ịkpụzi iji mee ka mmiri nke apịtị dịkwuo mma ma melite ike nke ahụ.
N'ime ụlọ ọrụ na-emepụta akwụkwọ, enwere ike iji ya mee ihe maka mkpuchi akwụkwọ iji meziwanye ire ụtọ nke elu na ibipụta akwụkwọ.
Ọrụ ugbo na nchekwa gburugburu ebe obibi
Enwere ike iji HPMC viscosity dị ala na nkwusioru pesticide iji meziwanye nkwụsi ike ọgwụ na ịgbatị oge ntọhapụ.
N'ime ihe ndị na-eme enyi na gburugburu ebe obibi, dị ka ihe mgbakwunye mmiri na-edozi mmiri, uzuzu uzuzu, wdg, ọ nwere ike ịkwalite nkwụsi ike mgbasa ozi ma melite mmetụta eji eme ihe.
4. Iji na nchekwa nke obere viscosity HPMC
Usoro ojiji
A na-enyekarị HPMC viscosity dị ala na ntụ ntụ ma ọ bụ ụdị granular ma nwee ike ịgbasa ya ozugbo na mmiri maka ojiji.
Iji gbochie agglomeration, a na-atụ aro ka iji nwayọọ tinye HPMC na mmiri oyi, kpalie nke ọma wee kpoo ọkụ iji gbazee iji nweta mmetụta nkwụsịtụ ka mma.
N'ime usoro ntụ ntụ akọrọ, enwere ike ịgwakọta ya na ihe ndị ọzọ a na-eme ntụ ntụ ma tinye ya na mmiri iji melite nrụpụta mgbasa.
Ihe nchekwa chọrọ
Ekwesịrị ịchekwa HPMC n'ebe kpọrọ nkụ, dị jụụ, nke ikuku na-ekuku nke ọma iji zere oke okpomọkụ na iru mmiri.
Wepụ na oxidants siri ike iji gbochie mmeghachi omume kemịkalụ na-ebute mgbanwe arụmọrụ.
A na-atụ aro ka achịkwa okpomọkụ nchekwa na 0-30 ℃ ma zere ìhè anyanwụ kpọmkwem iji hụ na nkwụsi ike na ndụ ọrụ nke ngwaahịa ahụ.
Obere viscosity hydroxypropyl methylcellulosena-arụ ọrụ dị mkpa n'ọtụtụ ụlọ ọrụ dị ka ihe owuwu ụlọ, ọgwụ na ihe oriri, ihe ịchọ mma, mpempe akwụkwọ seramiiki, na nchebe gburugburu ebe obibi nke ugbo n'ihi oke mmiri solubility ya, mmanu mmanu, njide mmiri na mmepụta ihe nkiri. Njiri mara viscosity ya dị ala na-eme ka ọ dabara adaba maka ọnọdụ ngwa nke chọrọ mmiri, mgbasa na nkwụsi ike. Na na-aga n'ihu mmepe nke ulo oru technology, ngwa ubi nke ala viscosity HPMC ga-n'ihu gbasaa, na ọ ga-egosi sara mbara atụmanya na melite ngwaahịa arụmọrụ na optimizing mmepụta Filiks.
Oge nzipu: Mar-25-2025