Okwu Mmalite nke ọkwa ụlọ ọrụ mmepụta ihe HPMC

1. Gịnị bụ ọkwa ụlọ ọrụ mmepụta ihe HPMC

Ọkwa ụlọ ọrụ mmepụta iheHPMC (Hydroxypropyl Methylcellulose)bụ ihe e ji emepụta cellulose ether nke na-abụghị ionic, nke a na-ejikarị n'ụdị ntụ ntụ ọcha ma ọ bụ ntakịrị odo odo mee. E ji eriri owu eke mee ya site na ọgwụgwọ alkali na usoro mmeghachi omume kemịkalụ (dịka etherification), ma nwee ezigbo ndakọrịta bio na nkwụsi ike kemịkalụ. N'ihi ihe pụrụ iche ya na nke kemịkalụ, a na-eji HPMC eme ihe n'ọtụtụ ebe ọrụ mmepụta ihe dịka owuwu, mkpuchi, seramiiki, na kemịkalụ ọrụ ugbo.

2. Arụmọrụ kachasị nke HPMC nke ọkwa ụlọ ọrụ mmepụta ihe

Ịkpụ ọkpụrụkpụ

HPMC nwere ikike dị oke mma ma nwee ike ịbawanye viscosity nke sistemụ mmiri mmiri nke ọma, si otú a melite ihe owuwu, slurry na ihe ndị na-ehicha ihe nke ngwaahịa ahụ.

Nchekwa Mmiri

N'ọrụ dịka ngwa agha na putty, HPMC nwere ike ime ka njigide mmiri nke ihe ahụ ka mma nke ukwuu, gbochie mfu mmiri ngwa ngwa, ịgbatị oge ọrụ, ma melite njupụta na njikọta nke ngwaahịa emechara.

Ịmepụta Ihe Nkiri

HPMC nwere ike ịmepụta ihe nkiri siri ike ma doo anya n'elu, na-enye ngwaahịa ahụ ezigbo ihe nchebe na ihe na-egbuke egbuke.

Mgbasa na emulsification

HPMC nwere ezigbo mgbasa na mmiri ma enwere ike iji ya dị ka emulsifier iji mee ka sistemụ ahụ sie ike ma melite nguzozi na nkwụsi ike nke usoro ahụ.

Gelation okpomọkụ

Mmiri mmiri HPMC ga-emepụta jel mgbe a na-ekpo ọkụ ruo okpomọkụ ụfọdụ. Njirimara jel a a na-agbanwe agbanwe bara ezigbo uru na ụfọdụ ojiji pụrụ iche.

3. Isi ebe ngwa nke HPMC ụlọ ọrụ mmepụta ihe

Ụlọ ọrụ ihe owuwu

Ngwakọta akọrọ (dịka taịlị, ngwa plasta, ngwa agha na-agbanwe onwe ya): HPMC nwere ike ime ka njigide mmiri, njikọta na arụmọrụ owuwu nke ngwa agha dịkwuo mma.

Ntụ ntụ putty: Meziwanye mmetụta owuwu ahụ, gbochie mgbawa na ịfụfụ, ma melite mma elu nke ngwaahịa emechara.

Sistemụ mkpuchi mpụta (EIFS): Mee ka nrapado na mgbanwe nke ngwa agha dịkwuo mma ma gbasaa ike ya.

Ụlọ ọrụ agba

A na-eji HPMC eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike na ihe nkiri ochie iji melite arụmọrụ mgbochi ịla n'iyi, ike imeghe nkwụsi ike na otu ihe nkiri nke mkpuchi ahụ.

Ụlọ ọrụ seramiiki

N'imepụta embrayo seramiiki, HPMC na-arụ ọrụ na idobe mmiri, ịmịnye mmanụ, ịkpụzi ihe, wdg, na-enyere aka ime ka njupụta na mgbochi mgbawa nke ngwaahịa ahụ ka mma.

Ngwaahịa kemịkalụ kwa ụbọchị

Ịtinye HPMC na ihe nhicha na ihe nhicha nwere ike ime ka ngwaahịa ahụ dịkwuo mma, mee ka ụfụfụ ahụ dịkwuo mma ma sie ike, ma melite nkwụsi ike nke usoro ahụ.

Ịgba mmanụ

Dịka ihe mgbakwunye maka mmiri ịgba mmiri, HPMC nwere ike ịgbanwe usoro mmiri ịgba mmiri, gbochie mgbidi olulu mmiri ịda, ma melite arụmọrụ ịgba mmiri.

4. Otu esi eji HPMC nke ọkwa ụlọ ọrụ mmepụta ihe

Ọtụtụ mgbe, a na-achọ ka a gbasaa HPMC n'ime mmiri oyi iji mepụta otu ngwọta iji nye ọrụ ya nke ọma. Usoro ojiji a na-ejikarị eme ihe bụ ndị a:

Fesa HPMC nwayọ nwayọ ma n'otu aka ahụ n'ime mmiri oyi a na-akpali iji zere ịchịkọta.

Gaa n'ihu na-akpali ruo mgbe a ga-agbasa ya na mbụ.

Nọrọ ruo oge ụfọdụ (karịa ihe karịrị awa abụọ) iji mee ka cellulose ahụ dị mmiri mmiri nke ọma ma gbazee ya.

Ọ bụrụ na ọ dị mkpa, kpalie ya nke ọma ruo mgbe e nwere otu ngwọta doro anya ma ọ bụ nke na-enweghị ntụgharị.

N'ọrụ ụlọ ọrụ mmepụta ihe n'ezie, a na-agbanwe ọnụọgụ HPMC agbakwunyere mgbe ụfọdụ dịka ọ dị mkpa, a na-achịkwa ya n'etiti 0.1% na 2.0%, oke kpọmkwem dabere na sistemụ usoro na mmetụta achọrọ.

5. Njikwa mma na ntụaka nhọrọ

HPMC nke ọkwa ụlọ ọrụ nwere nkọwapụta viscosity dị iche iche (dịka 400 mPa.s, 15000 mPa.s, wdg) na ogo nnọchi (ya bụ, ogo nnọchi nke hydroxypropyl na methyl) dịka ihe dị iche iche achọrọ maka ngwa. Ịhọrọ ụdị kwesịrị ekwesị nwere mmetụta dị mkpa na arụmọrụ ngwaahịa. Ihe nnwale nkịtị gụnyere:

Viscosity (2% ngwọta na okpomọkụ ụlọ)

Mmiri dị n'ime ya

Ọdịnaya ntụ

Ọdịnaya Methoxy na hydroxypropyl

uru pH (1% mmiri mmiri)

HPMC nke ụlọ ọrụ mmepụta ihe dị elu kwesịrị inwe njirimara nke ọdịnaya ntụ dị ala, mgbasa dị mma, viscosity kwụsiri ike, na ọnụego mgbasa ngwa ngwa.

6. Nchekwa na nkwakọ ngwaahịa

A ga-echekwa HPMC n'ebe dị jụụ, kpọrọ nkụ, ebe ikuku na-abata nke ọma, na-ezere oke okpomọkụ, iru mmiri na anwụ iji gbochie mmiri ịmịkọrọ, nchikọta ma ọ bụ mgbanwe arụmọrụ. A na-ejikarị ya eme ihe n'ime akpa akwụkwọ mejupụtara ọtụtụ oyi akwa nke ejiri akpa ihe nkiri polyethylene kpuchie. Nkọwapụta nkwakọ ngwaahịa ọkọlọtọ bụ kilogram 25/akpa, nke enwere ike ịhazi dịka ihe ndị ahịa chọrọ si dị.

Ụlọ ọrụ ọkwa HPMCna-arụ ọrụ a na-apụghị ịgbanwe agbanwe n'ọtụtụ ngalaba ụlọ ọrụ mmepụta ihe yana njirimara anụ ahụ na kemịkalụ ya dị mma. Site na mmụba nke ihe owuwu akwụkwọ ndụ akwụkwọ ndụ, mkpuchi na-adịghị emebi gburugburu ebe obibi na ihe mejupụtara arụmọrụ dị elu, ọchịchọ maka HPMC dị elu na-amụbakwa. N'ọdịnihu, site na nhazi usoro mmepụta na-aga n'ihu na mmụba nke ubi ngwa, HPMC nke ọkwa ụlọ ọrụ ga-egosi atụmanya mmepe sara mbara.