Usoro nyochara HPMC
Usoro na-emepụta ihe makaHydroxypylththththththylcelllose (hpmc)na-agụnye usoro kemịkal, arụ ọrụ, na ikuku. Usoro a na-amalite site na-amalite site na-achagharị sellulose site na eriri anụ ahụ ma mechie ya na mmepụta ntụ nke ntụ ntụ nke kwesịrị ekwesị maka ngwa dị iche iche. Ihe nyocha zuru ezu na-ekpuchi usoro ọ bụla na usoro mmepụta HPMC, gụnyere ndakpọ nke igodo, akụrụngwa, mmeghachi omume, mmeghachi omume, na usoro njikwa dị mma.
Okwu Mmalite na Nchọpụta HPMC
Hydroxypylthththththylcelllose(HPMC) bụ ihe eji eme ihe dị iche iche, gụnyere ihe owuwu (dịka ihe mgbakwunye), ngwaahịa na-achịkwa ya), dị ka shampoos ma ọ bụ loonions), na ndị ọzọ. Ngwongwo pụrụ iche ya gụnyere njigide mmiri, ikike ịse, viscosity dị elu, na iji belata.
A na-emepụta HPMC site na modelise modemise, polymer ekepụta mkpụrụ osisi eke site na eriri osisi. Site na usoro eiterification, ndị otu dị iche icheMethylnahydroxypylA na-ewebata otu ụmụ irighiri akwara, si otú ahụ na-agbanwe akụrụngwa na kemịkal ya. Mgbanwe ndị a na-atụ aro dị ka mmiri ga-eme ka mmiri sie ike, na-eruwanye mma, yana ihe ndị na-eme ka ngwaahịa a.
Akụkụ ndị a na-enye nkọwa zuru ezu nke usoro a gụnyere na mmepụta nke HPMC, na-ekpuchi nkwadebe ihe, usoro kemịkal, na usoro kemịkado.
1. Nkwadebe akụrụngwa akụrụngwa
Ihe eji eme ihe maka imepụta HPMCsellose, nke a na-ejikwa ya na eriri osisi, nke bụ isi osisi purp ma ọ bụ akwa akwa. The cellulose ga-enwerịrị usoro ọgwụgwọ iji wepu adịghị ọcha ma kwadebe ya maka usoro eiterification. Nke a na - eme ka nke ahụ dị ọcha ma na - emeghachi omume.
1.1. Isi mmalite na ịdị ọcha nke cellose
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Cellulite Soundcing | Nweta cellosuse sitere na eriri anụ, dịka osisi pupps ma ọ bụ akwa akwa. | The cellose kwesịrị inwe ịdị ọcha dị elu iji hụ na ọ dị mma nke HPMC. |
| Mmeghe | Wepu ihe ndị na-abụghị mkpụrụ osisi mkpụrụ osisi, dị ka Liminin na Hemicelllose, na-eji ọgwụgwọ Alkali. | A na-ejikarị sodium hydroxide (Naoh) ma ọ bụ potassium hydroxide (koh) na-eji igbari Hemicelllose na Liminin. |
| Asacha | Itucha mmiri iji wepu kemịkalụ ndị dị na mmiri. | Rinsing na-ewepụ Alkali na adịghị ọcha ndị ọzọ iji hụ na cellulose dị ọcha. |
A na-ahazi eriri akwara nke cellulose ma kpọnwụọ iji nweta obere mmiri, nke dị oke mkpa maka usoro ndị sochirinụ.
1.2. Ọgwụgwọ na alkali
A na-emeso eriri akwara cellulose na sodium hydroxide (NaOh) ngwọta iji mee ka eriri ndị ọzọ na-emeghachi omume ma mepee ihe owuwu ha. A na-akpọ nke aỌgwụ Alkali or ogbo, ọ bụ nzọụkwụ dị mkpa na usoro ahụ.
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Alkali rụọ ọrụ | A na-etinye cellulose na ngwọta alkaline (naoh) ruo ọtụtụ awa na oke ikuku. | Ngwọta Alkaline na-ekwupụta cellosuse, na-eme ka ọ na-emeghachi omume maka usoro ehure ahụ. |
| Ọnọdụ | Mgbe ọgwụgwọ gasịrị, a na-ahapụ ngwakọta ahụ ruo ọtụtụ awa ma ọ bụ ụbọchị. | Nke a na-enye ndị ọrụ eriri afọ iji kwụsie ike ma hụ na otu maka nzọụkwụ ọzọ. |
2. Usoro eaherification
Ileta ya bụ usoro ebe cellosuse mereMethyl chloride (ch₃cl)naproplene oxide (c₃h₆o)Iji webata Methyl (ch₃) na hydroxypyl (C₃h₆oh), na-agbanwegharị cellulose n'imeHydroxypylththththththylcelllose (hpmc).
Nke a bụ ihe kachasị dị oke mkpa nke ịmepụta ọrụ HPMC, dịka ọ na-ekpebi ogo na akụrụngwa nke ngwaahịa ikpeazụ.
2.1. Methylation (otu methl na mgbakwunye)
A na-ebu ụzọ na-emegharị eriri ahụMethyl chlorideNa ọnụnọ nke ntọala (na-abụkarị sodium hydroxide, NaOh), na-ewebata otu methy (-ch) n'ime ihe owuwu cellulose.
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Methylation | A na-emegharị cellyl chloride (ch₃l) n'ihu nke Naoh. | Mmeghachi omume na-ewepụta otu methy (-ch) na mkpụrụ ndụ cellulose. Ụdị aMethylcellose (mc)dị ka onye etiti. |
| Njikwa mmeghachi omume | A na-achịkwa mmeghachi omume a na usoro nke okpomọkụ (30-50 Celsius C) na oge. | Oke okpomọkụ nwere ike ibute mmeghachi omume ndị na-achọghị, ebe oke okpomọkụ nwere ike belata ogo nke nnọchi. |
Ego nke mebere na-ekpebiogo nbanye (DS), nke na-emetụta mmụọ na viscosity nke ngwaahịa ikpeazụ.
2.2. Hydroxypylation (Hydroxyppropyl onye otu)
A na-emegharị sellose naproplene oxide (c₃h₆o)imuotu hydroxyl (-c₃h₆oh), nke na-enye HPMC Njirimara Njirimara, dị ka ndọ mmiri na ndata.
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Hydroxypylation | Methylate na cellose na-agwọ ọrịa toplene nke dị n'okpuru ọnọdụ achịkwa. | Ụdị mmeghachi omumehydroxypylththththththylcelllose (hpmc). |
| Nnukwu ihu | A na-eji sodium hydroxide ma ọ bụ sodium carbonate dị ka ihe na-akpata. | Isi na-enyere aka na mmelite nke propylene oxide maka mmeghachi omume. |
Ngosiputa nke ihe eji emeju anya na-emetụta ihe ndị ikpeazụ nke HPMC, dị ka ọhụụ ya, solubity, na ikike itopụta fim.
2.3. Njikwa mmeghachi omume nke mmeghachi omume
A na-arụ mmeghachi omume nke e liveiti ahụ na aNKWUPUTA NIILEn'okpuruỌnọdụ okpomọkụ na nrụgide. Ọnọdụ a na-ahụkarị dị ka ndị a:
| Paramita | Inwa |
|---|---|
| Temperacho | 30 Celsius C rue 60 Celsius C |
| Okwukwa | Ikuku ikuku ma ọ bụ obere nrụgide |
| Oge mmeghachi omume | 3 ruo 6, dabere na ogo nke ihe eji eme ihe |
Ekwesịrị iji nlezianya na-achịkwa mmeghachi omume iji hụ na edo edo ma zere mmeghachi omume ezughị ezu.
3. Ọ na-anọpụ iche na ịsacha
Mgbe usoro a matara, mmeghachi omume na-enwe ọgwụ alkali na kemịkal na-enweghị atụ. Ọ dị mkpa ka a na-ewepụ ya iji hụ na ngwaahịa HPMC ikpeazụ dị mma, dị ọcha, na nkọwapụta.
3.1. Seutralization
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Seutralization | Tinye acid na-adịghị ike, dị ka hydrochloric acid (hcl), iji kpochapụ oke na n'anya. | Acid na -ewepụ ngwakọta alkaline ọ bụla. |
| nchịkwa ph | Gbaa mbọ hụ na pH nke ngwakọta ahụ bụ neutralized (ph 7) tupu ịga n'ihu na nzọụkwụ ọzọ. | Arụnọ na-enyere aka izere okwu na nkwụsi ike nke ngwaahịa ikpeazụ. |
3.2. Asacha
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Asacha | Na-asa ngwakọta na-anọ nke ọma na mmiri. | Enwere ike ịchọ ọtụtụ saa mmiri iji wepu kemịkal niile nke ndị na-agbasa na ngwaahịa. |
| Mmeghe | A na-enyocha ihe ọ bụla ma ọ bụ adịghị ọcha ma ọ bụ adịghị ọcha. | Nzọụkwụ a na-agba mbọ na ngwaahịa ikpeazụ dị ọcha ma free pụọ na mmerụ. |
4. Ihicha na mmachi
OzugboHpmcSlurry na-anọpụ iche ma gbanwee, nzọụkwụ ọzọ bụ ihicha iji tụgharịa ngwaahịa ahụ ka ọ bụrụ ntụ ntụ. A na-achịkwa usoro ihicha ahụ iji lekọta akụrụngwa kemịkalụ nke HPMC.
4.1. Ihicha
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Ihicha | A na-akpọnwụ hpmc slurry a mịrị amị, na-ejikarị yafesa ihicha, Ihicha, ma ọ bụIhichausoro. | Spray ihicha bụ usoro kachasị, ebe slurry bụ atọmịrị ma mịrị amị na ikuku na-ekpo ọkụ. |
| Njikwa okpomoku | A na-achịkwa okpomoku na-eji nlezianya na-achịkwa iji zere imebi ihe nke cellulose ether. | A na-ejikarị, okpomọkụ dị n'etiti 50 Celsius C ruo 150 Celsius C iji, dabere na usoro nkụ. |
4.2. Na-egweri ihe
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Igbo | HPMC a mịrị amị bụ ntụ ntụ. | Nke a na - eme ka uwe dị nha. |
| Mefia | A na-esi ísì ụtọ nke ala hpmc. | Enyere na ntụ ntụ ahụ na-achọ nzọpụta na nkesa nha. |
5. Njikwa mma na nnwale
Tupu ngwugwu HPMC ikpeazụ ma bufee ya, ọ na-aga n'ihu njikwa njikwa njikwa iji hụ na ọ na-ezute ụkpụrụ ụlọ ọrụ.
5.1. Nnwale viscosity
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Ọkpụkpụ viscosise | Tụọ viscitse nke ọkọlọtọ nke HPMC na mmiri. | Nleta ọhụụ nke HPMC dị oke mkpa maka ngwa dị ka adhesives, mkpuchi, na ihe owuwu. |
5.2. Ọdịnaya Mmiri
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Ule ule | Nwalee maka afọ ojuju mmiri. | Oke mmiri nwere ike ibute arụmọrụ adịghị mma na ngwa. |
5.3. Ịdị ọcha na nnwale adịghị ọcha
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Nyocha ọcha | Nwalee ịdị ọcha nke HPMC na iji usoro dị ka Chromatography. | Enyere na HPMC enweghị kemịkalụ kemịkal na-agụ. |
6. nkwadebe
Ozugbo HPMC na-agafe ule niile dị mma, a na-etinye ya n'imeakpa, igwe egwu, ma ọ bụsaketsdabere na ndị ahịa chọrọ.
| Izo | Otu esi emeputa ihe | Nkowa |
|---|---|---|
| Mbukota | Ngwunye ngwaahịa HPMC ikpeazụ ahụ n'ime igbe dị mma. | Ngwaahịa ahụ adịla njikere maka mbufe ndị ahịa. |
| Akara | Ikike dị mma na nkọwapụta, nọmba bat, na ntuziaka. | Mpempe akwụkwọ na-enye ndị ahịa ozi siri ike. |
Mmechi
Usoro n 'usoro na-emepụta ihe maka hydroxylthylthyl methylcellose (HPMC) na-amalite usoro na-achịkwa, na-amalite site na ntụle na nsị nke cellulose na ngwugwu nke ngwaahịa a. Nzọụkwụ ọ bụla na usoro ahụ na-emetụta ogo na akụrụngwa nke HPMC, dị ka viscosity, sonyere na ike ịmịpụta ihe nkiri.
Ghọta usoro nkọwapụta nke ọma na ndị na-emepụta nwere ike ịmalitepụta ngwaahịa dị elu nke na-emezu mkpa nke ụlọ ọrụ dị iche iche, site na iwu ọgwụ na-enweghị ọgwụ.
Oge post: Feb-07-2025