Hydroxypylththththththylcelllose (hpmc)naMethylcellose (mc)Ha abụọ cellose meriri na-ejikarị n'ọtụtụ ụlọ ọrụ, gụnyere ọgwụ, nri, ihe ịchọ mma, na owuwu. N'agbanyeghị myirịta ha, ihe abụọ a nwere akụrụngwa kemịkal dị iche na ngwa.
1. Ihe Okike
Ma HPMC na MC bụ cellulose meriri, ma isi ihe dị mkpa dị na kemịkalụ nke a na-etinye na Backbose Backbone.
Methylcellose (mc): Nke a na-kpụrụ site na methylition nke cellose. N'ime usoro a, a na-ekenye otu methy (-chi) na ìgwè hydroxy nke akwara cellulose. Ngo di iche iche na-agbanwekarị n'agbata 20-30%, dabere na ọkwa nke MC, nke na-emetụta solubaty ya na Njirimara ndị ọzọ.
Hydroxypylththththththylcelllose (hpmc): Kimacell®hpmc bụ ihe mgbagwoju anya dị mgbagwoju anya. Na mgbakwunye na metyọ, ọ na-enwekwa nsogbu hydroxyyylation. A na-ewebata otu dị iche iche (-Ch2chohch3) ka a na-ewebata na cellulose molekuse, yana otu methy. Ogo Hydyproppylation ogo hpmc nwere ike ịdị iche nke ukwuu, nke na-enye ọtụtụ akara ule dị iche iche nke HPMC.
| Mma | Methylcellose (mc) | Hydroxypylththththththylcelllose (hpmc) |
| Ihe Okike | Methylation nke cellose | Methylation na hydroxypylation nke cellose |
| Otu arụ ọrụ | Otu methyl (-ch3) | Otu Methyy (-ch3) + hydroxypyl dị iche iche (-CH2chohch3) |
| Ogo nbanye (DS) | 20-30% methylation | Dịgasị iche, ya na methyl na hydroxypyl nnọchi anya na-agbanwe agbanwe |
2. Soluuru
Solibe isi bụ otu n'ime ihe kachasị mkpa mgbe e jiri ya tụnyere mc na HPMC. Mgbakwunye nke abụọ a ferivative ndị a na-adabere na ogo nke dochie anya na usoro ụfọdụ usoro ihe ahụ.
Methylcellose (mc): Mc na-agbanye na mmiri ọkụ ma na-etolite gel na jụrụ. Ihe onwunwe a pụrụ iche nke na-akpụzi gels mgbe ọ na-agbagharị ma na-alaghachi na mmiri mmiri na-agbanwe mmiri bụ otu n'ime njiri mara nke MC. Ọ bụ insoluble na mmiri oyi, ma soluble na mmiri ọkụ karịa ọnụ ụzọ mmiri okpomọkụ (50-70 Celsius C), na usoro glelition na-agbanwe agbanwe.
Hydroxypylththththththylcelllose (hpmc): HPMC, n'aka nke ọzọ, na-soluble na mmiri oyi na mmiri ọkụ. Nke a na - eme ka ọ dịkwuo na mc. A na-emetụta ndọtị nke hpmc site na ụdị ndọtị (ogo nke methyl ka hydropyyyl dị iche iche) na ọkwa viscosis. Nchikota di elu na-eme ka hpmc karie na mmiri na obere okpomọkụ.
| Soluuru | Methylcellose (mc) | Hydroxypylththththththylcelllose (hpmc) |
| Solibality na mmiri | Soluble na mmiri ọkụ (gelation na jụụ) | Soluble na mmiri ma na-ekpo ọkụ na oyi |
| Akụ na-akwụ ụgwọ | Na-etolite gel | Anaghị etolite gel, na-anọgide na-agbanye mmiri niile |
3. Vissiosi
Viccitty na-arụ ọrụ dị oke mkpa n'ọtụtụ ngwa, ọkachasị na ụlọ ọrụ ọgwụ na nri.
Methylcellose (mc): Viscosity nke Kimacell®mc ngwọta bụ okpomọkụ - nke ndabere. Visaty na-abawanye mgbe iwe, ọ na-egosipụta ihe ịtụnanya nke gelation. Ogo nke dochie anya na-emetụta viscosity, ya na ọkwa dị elu na-ebute ọkwa dị elu.
Hydroxypylththththththylcelllose (hpmc): HPMC n'ozuzu nwere profaịlụ vissity na-agbanwe agbanwe karị tụnyere mc. A na-emetụta viscosity HPMC site na ogo nke nnọchi, mana ọ na-anọgidesi ike n'ofe oke okpomọkụ. Ọzọkwa, enwere ike ịhazi HPMC ahụ ka ha nwee ọhụụ, site na ala dị ala, dabere na ngwa.
| Vissiosi | Methylcellose (mc) | Hydroxypylththththththylcelllose (hpmc) |
| Omume viscosity | Na-abawanye na kpo oku (gelation) | Vissity dị ala na ọnọdụ dị iche iche |
| Njikwa na viscosity | Njikọ amachibido na viscosity | Njikwa ka ukwuu na viscosis dabere na ọkwa na akara ngosi |
4. Ngwa
A na-eji MC na HPMC nke ukwuu na ọgwụ, nri, na ụlọ ọrụ cosmetics, mana ihe ndị ọ bụla nke ọ bụla na-eme ka ha dachaa maka ụfọdụ ngwa.
Methylcellose (mc):
Ọgwụgwọ: Mc na-ejikarị ihe mgbochi, na-ese ihe, na onye na-eburu ibu na-akwụ ụgwọ na mbadamba mbadamba n'ihi ihe ọ bụla na-akwụ ụgwọ. A na-ejikwa ya na ntọhapụ nke a na-achịkwa ya.
Ụlọ ọrụ nri: MC na-eji dị ka nri nri, emunsuficier, na mma. Ihe onwunwe na-akpụ akpụ bara uru na-eme ka ngwaahịa dị ka ice cream, akwa salad, na ngwaahịa ngwaahịa.
Ihe icho ihe: Mc na-eji mara mma na ihe ịchọ mma, emulsifhing, na edozi ihe dị na ngwaahịa dị ka lotions, shampoos, na ude.
Hydroxypylththththththylcelllose (hpmc):
Ọgwụgwọ: HPMC na-eji ọtụtụ ebe dị ka ihe mkpuchi na ndị nnọchite anya mbanye na usoro ọkwa mbadamba. A na-ejikwa ya na ngwọta nke ophthalmic dị ka ihe na-egbu egbu na sistemụ nnyefe Gel.
Ụlọ ọrụ nri: A na-eji HPMC mee ihe na-egbu egbu na-efu, dị ka ọ na-emepụta na-amịpụta mkpụrụ na ngọngọ. A na-ejikwa ya dị ka mmachi na emilsifier na nri dị iche iche a haziri ahazi.
Mwube: A na-eji HPMC mee ihe dị ka onye na-ahụ maka ciment, plasta, na tile adhesives. Ọ na-eme ka ọrụ ọgbụgba, ebe nchekwa mmiri, na adresion.
| Akwukwo icho oru | Methylcellose (mc) | Hydroxypylththththththylcelllose (hpmc) |
| Ọgwụgwọ | Ihe mkpuchi | Ihe mgbochi, na-achịkwa ya, ophthallic luricant |
| Ụlọ ọrụ nri | Twooner, Emififier | Blutan-na-ere ahịa na-efu, mmachi, emicfifier |
| Ihe icho ihe | Twooner, Emififier | Twooner, Staflawa, emunsufier |
| Mwube | Adịkarịghị eji | Mgbakwunye na ciment, plasta, adhesives |
5. Njirimara ndị ọzọ
Hygroscopity: HPMC na-abụkarị hygroscopic (mmiri na-adọta) karịa MC, nke na-eme ka ọ bara uru na ngwa ebe achọrọ njigide mmiri.
Igwe nkwụsi ike: Mc na-egosi nkwụsi ike nke ọma n'ihi akụ ya. HPMC, ebe kwụsiri ike na ọnọdụ okpomọkụ nke na-ewetara, nwere ike ọ gaghị enye otu ihe ọkụkụ ahụ dị ka MC.
6. Nchikọta nke ọdịiche
| Mma | Methylcellose (mc) | Hydroxypylththththththylcelllose (hpmc) |
| Ihe Okike | Otu methyl jikọtara ya na cellose | Methyl na hydroxypyl dị iche iche jikọtara ya na cellulose |
| Soluuru | Soluble na mmiri ọkụ, ụdị ndụ | Soluble na mmiri oyi na mmiri ọkụ |
| Akụ na-akwụ ụgwọ | Na-etolite gel na jụụ | Enweghị nsogbu ọ bụla |
| Vissiosi | Okpomọkụ - nke ndabere, gels na kpo oku | Visisity Visaty na-ahụkarị okpomọkụ |
| Ngwa | Ọrịa ọgwụ, nri, ịchọ mma | Ihe na-emepụta ọgwụ, nri (Freelen-Free), ịchọ mma, owuwu |
| Hygroscopity | Dị ala karịa hpmc | Elu, na-adọta mmiri mmiri |
Ka ha abuoHpmcnaMCbụ mkpụrụ ndụ Cellulose na ngwa na-egbochi, usoro na akụrụngwa ha na-eme ka ha bụrụ ihe dabara adaba maka iji dị iche iche. MC bara ezigbo uru na ngwa ndị na-erite uru na ụlọ ya na-akwụ ụgwọ na ebe nchekwa HPMC na nkwụsi ike na-eme ka ọ dịkwuo na ọrụ, gụnyere nhazi nri na ọgwụ. Ghọta ọdịiche ndị a na-enyere aka ịhọrọ ihe kwesịrị ekwesị maka ngwa ndị akọwapụtara.
Post Oge: Jan-27-2025