Mkpa nke hydropylthylthyl methyl cellulose eather (hpmc) ka a na-enyocha ya

HPMC Chinese Hydropyyth Methyl Cellulose, nke ngwa agha na-ejikarị onye na-ahụ maka njide mmiri, bụ ihe eji eme ihe eji eme ihe na ngwa agha.

Usoro mmepụta HPMC bụ tuba eriri owu (ụlọ) mgbe alpalic, ehure na ọgbọ nke polysicchabise ether ngwaahịa. Ọ nweghị ụgwọ ma ọ nweghị ụgwọ ọ bụla na-emegharị ya na ihe ciment rụrụ arụ, yana arụmọrụ ya kwụsiri ike. Ọnụahịa ahụ dịkwa ala karịa ụdị mkpụrụ ndụ ndị ọzọ, yabụ a na-eji ya n'ọtụtụ ngwa ngwa.

Ọrụ Hydroxypyl Methyl Cellulose: nwere ike ime ka ogwe osisi ọhụrụ sie ike ka o wee nwee viocosity, gbochie Segregation. Idobe mmiri (nke dị mkpa) bụkwa njirimara kachasị mkpa, nke na-enyere aka ịnagide ego nke mmiri na-akwụghị ụgwọ na ngwa agha, nke mere na ihe eji arụ ọrụ na-eme ka oge ka ukwuu nwee oge ịmị ọkụ. (Njikọ mmiri) gas ya, nwere ike iwebata obere ekpuchi, na-eme ka ihe owuwu ahụ dị mma.

Ka ukwuu viscosity nke hydroxyppyl methyl cellulose ether, njigide mmiri ka mma. Vissiosis bu oke ihe di nkpa nke oru HPMC. Ka ọ dị ugbu a, ndị na-emepụta HPMC dị iche iche na-eji ụzọ dị iche iche na ngwa iji tụọ viscosity nke HPMC. Uzo isi bu ndi ozo bu Haakerotovisko, Hopler, Ubellehde na Brookfield.

Maka otu ngwaahịa ahụ, ụzọ dị iche iche a na-atụpụta nsonaazụ vissity nke ukwuu, ụfọdụ na-aba ụba. Ya mere, mgbe a tụnyere viscosity, a ga-eme ya n'etiti otu ule ahụ, gụnyere okpomọkụ, rotor, wdg.

N'ihi na urughuru nha, nke kachasị mma, mma njigide mmiri. Mgbe nnukwu mkpụrụ osisi celluluse kpọtụrụ ya na mmiri, elu ahụ na-agbaze ozugbo ma na-akpụzi gel iji gbochie ihe mejupụtara mmiri ahụ na-aga n'ihu na-aga n'ihu na infilt. Mgbe ụfọdụ, ọ bụ ọbụna oge na-akpali akpali ọ bụla na-akpali akpali ma gbasasịa, na-akpụzi ihe ọkụkụ ga-eme ka ọ bụrụ ihe ngwọta ma ọ bụ clumping. A na-emetụta njikọta mmiri nke ether nke ukwuu, na onye solulite ya bụkwa otu n'ime ihe ị na-ahọrọ ether. Nmapụta bụkwa ihe dị mkpa arụmọrụ arụmọrụ nke methyl cellulose ether. Mc maka ngwa ngwa akọrọ chọrọ ntụ ntụ, ọdịnaya mmiri dị ala, na ịdị mma na-achọ 20% ~ 60% na-erughị 63UM. Faconne na-emetụta ngbasa nke hydropyythyl methyl cellulose ether. Coarser Mc na-abụkarị nelata na mmiri ngwa ngwa na mmiri na-enweghị clumping, mana ọnụ ọgụgụ dị nnọọ mma na adịghị mma maka iji ngwa nkụ. Na ala akọrọ, mmiri na-ekesa n'etiti nchịkọta, mma, ciment na akụrụngwa ndị ọzọ, na naanị ezigbo ntụ ntụ nke methyl cellulose mgbe agbakwunye mmiri. Mgbe etisasịchara mc na mmiri, o siri ike ịgbagha na mgbasa. Mc na anụ ọhịa nke na-ere ere abụghị naanị ihe na-emebi emebi, kamakwa na-ebelata ike mpaghara. Mgbe a na-eji ngwa agha a rụrụ na nnukwu mpaghara, ọ na-egosi na ọ na-ebelata ọsọ nke akọrọ ngwa agha nke mpaghara akọrọ, na-akpata oge dị iche iche. Maka ngwa agha nke nwere usoro eji arụ ọrụ, n'ihi na ịchikọta oge dị mkpụmkpụ, ihe dị mkpụmkpụ chọrọ dị elu.

N'ikwu na-ekwu, viscosity dị elu, ka mma idogide mmiri. Agbanyeghị, viscosity dị elu bụ, dị elu molecular arọ nke MC bụ, na ịkpụzi nke MC ga-ibelata ya, nke nwere mmetụta na-adịghị mma na ike na ngwa agha. The dị elu viscosity, ihe doro anya karị na-emetụta nke ngwa agha, mana ọ bụghị nke mmekọrịta ahụ. Na viscosity dị elu, ka ị na-arapara n'ahụ mmiri mmiri ga-abụ, ma n'oge owuwu, arụmọrụ nke nnyapade scraper na nnukwu ndọta na mkpụrụ. Mana ọ baghị uru iwelie ike mgbochi mmiri nke mmiri mmiri n'onwe ya. Nke ahụ bụ, n'oge a na-ewu ihe, arụmọrụ mgbochi apụtaghị nke pụtara ìhè. Kama nke ahụ, ụfọdụ na-agbanwe Methyl cellulose na-ajụ na obere viscosity nwere arụmọrụ dị mma na imeziwanye ike nke ngwa agha.

Njikọ mmiri nke HPMC na-emetụtakwa ọnọdụ okpomọkụ eji, na njigide mmiri nke methyl celluluse ether na-agbadata na ịrị elu okpomọkụ. Mana na ngwa eme ihe, ihe mgbochi akọrọ ga-anọkarị na oke okpomọkụ (dị elu karịa ogo 40 n'okpuru anwụ, nke na-agbacha ya na ịgwọ ciment na ngwa ngwa akọrọ. Ọnụ mbe na-agbadata nke ọnụego njikọta mmiri na-eduga na mmetụta pụtara ìhè na nrugide na-agba mbọ. N'okpuru ọnọdụ ndị dị otú ahụ, ọ na-eto eto na-eto ókè belata mmetụta nke ihe zuru oke. Na nke a, Ethyl hydroxyethythythyythyth na-ele anya dị ugbu a dị ugbu a na-ebute ụzọ nke mmepe teknụzụ. Ọ bụ ezie na mmụba nke methylyethythythythythythyth cellulose dosage (usoro ọkọchị), owuwu na ịgbagọ mbọ ike enweghị ike ijigide mkpa nke iji. MC site na ụfọdụ ọgwụgwọ pụrụ iche, dị ka imezi ogo nke akwara ya n'ihe banyere ọnọdụ okpomọkụ iji mee ka ọ dị mma, ka ọ nwee ike ịnye arụmọrụ ka mma n'okpuru ọnọdụ obi ọjọọ.

General HPMC nwere ọnọdụ okpomọkụ, enwere ike kee ụdị 60, ụdị 65, ụdị 75. N'ihi na ngwa agha ejikere ngwa ngwa nke nwere ụlọ ọrụ ájá ájá dị mma karịa nke ọma 75 hpmc na elu gel. Nyoputa HPMC ekwesịghị ịdị oke elu, ga-eme ka m na-abawanye, kamakwa nke nnyapade, na-emetụta owuwu ahụ. Ngwaahịa ngwa agha dị iche iche na-ahọrọ ụdị viscosity HPMC, atụla onwe gị iji hpmc dị elu HPMC. Ya mere, ọ bụ ezie na ngwaahịa nri Hydyplopy dị mma, mana ojiji nke ezigbo otuto, họrọ aka nri HPMC bụ ọrụ bụ isi nke ndị ọrụ ụlọ ọrụ. Ka ọ dị ugbu a, enwere ọtụtụ ndị na-ere ahịa na-akwadoghị onwe ya na Hold Holmc, ogo ahụ kwesịrị ịhọrọ ụdị nke cellulose, iji hụ na nkwụsi ike nke ngwa agha, anaghị echekwa ọnụ ala, na-ebute mfu na-enweghị isi.