Hydroxypyl Methyl Cellulose Hpmc bụ ụdị cellulose agwakọta ether, nke dị iche na cellylythyl cellulose agwakọta ether, ọ naghị emeghachi omume na ọla dị arọ. N'ihi ọdịnaya methoxy dị iche iche na ọdịnaya hydroxypyl methylcellose na ọdịdị nke methyl dị ala na ọdịnaya hydropyl, arụmọrụ ya dị elu, arụmọrụ ya dị elu na nke hydroxypylth methylcellose. Agbanyeghị, na iche iche iche, ọ bụ ezie na obere obere otu ma ọ bụ obere otu methoxy otu dị, solubality solution dị iche iche dị iche.
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Ihe eji egbu egbu methypypyl methyl methyl methyl methyl. Cellulose dị ka na mmiri oyi solublity na enweghị nsogbu mmiri. Agbanyeghị, n'ihi mgbanwe hydropyyl na-agbanwe agbanwe, okpomoku ya na mmiri ọkụ dị elu karịa nke methy cellulose. Iji maa atụ, viscosity nke hydroxypypyl methylylyl ọdịnaya 2% methoxyl na ọdịnaya ọdịnaya MS = 0.46 bụ 500 ME na 20 Celsius C. Ọrịa Geel ya nwere ike iru nso 100 Celsius C, ka methylcellose n'otu okpomọkụ bụ naanị ihe dị ka 55 Celsius. Banyere ngbasa ya na mmiri, a na-emeziwanyekwa ya nke ukwuu. Dịka ọmụmaatụ, a na-emerịrị hydroxylthylthylthylthylthylthylthylthyl nke 0.2 ~ 0. Enwere ike iji viscosity 4%, a ga-eji ya na mmiri nke 4Pa?
Nkwekorita nke hydyyppyl methyl cellulose na sonvics solubility nke methyl cellulose na methyl cellulose nwere hydropose nwere hydroposel nwere hydyyyl MS = 1.5 ~ 1.8 na methoxy ds = 0.2 ~ 1.0, na ngụkọta nke methanol na athanol solution na-ajụ, na mmiri. Ọ dịkwa mma na chlorinarbons ndị dị ka Dichloromethane na chloroform na chloroform na chloroform na senvents na-eme ka acketone, Isopropanol na Diacetone na mmanya. Ihe sonyere ya na ihe ndozi nke ihe di nma karie mmiri.
2. Ihe ndị na-emetụta viscosis nke hydroxypylthyl
Na-emetụta ihe nke hydroxypppppyl methyl cellose viscision nke na-eme ihe na-egbu egbu methyl cellulose, dị ka ihe ngwọta okirikiri nke abụọ na 20 Celsius. Viscosity nke otu ngwaahịa na-abawanye na mmụba nke ịta. Maka ngwaahịa nwere ihe molecular dị iche iche na otu itinye uche, ngwaahịa nwere nnukwu mowocular nwere nnukwu molecular nwere viscosity dị elu. Mmekọrịta ya na ọnọdụ okpomọkụ yiri nke Methy Cellulose. Mgbe ọnọdụ okpomọkụ na-abawanye, viscosit bidoro ibelata, mana mgbe ọ ruru ụfọdụ okpomọkụ, viscosity na mberede na-abawanye na gelition na-abawanye. Ọnọdụ gel nke ngwaahịa viscosise dị elu dị elu. dị elu. Ọ bụghị naanị na Gel na-ahụ maka viscosity nke ether, kamakwa ihe mejupụtara nha nke methoxy na hydroxyl na Ether na ogo nke nnọchi. Ekwesịrị ịchọpụta na hydropyythylthylthylthylthylthyl na pseudoplastic na ihe ngwọta ya kwụsiri ike na ọnọdụ okpomọkụ na-enweghị mmebi nke viocosiable ma ọ bụrụ na ọ ga-ekwe omume nke mgbatị enzymatic.
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Hydroxypyl Methylcellose hydropyyhropyyhropylilose bụ ihe kwụsiri ike na acid na alkali, ma anaghị emetụta ya na mpaghara PH 2 ~ 12. Ọ nwere ike iguzogide ụfọdụ nke Ìhè acid. Dị ka acid acid, acetic acid, citric acid, phosphic acid, curic acid, wdg. Agbanyeghị, acid acid nwere mmetụta nke ibelata viscosity. ALkaLI dị ka Cuustic Sogash na mmiri Waime enweghị mmetụta ọ bụla na ya, mana enwere ike iwepụta ihe viscosity nke ihe ngwọta ahụ, mgbe ahụ, a ga-enwe ihe ịtụnanya na-adịghị nkọ n'ọdịnihu.
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Ifè na hydyppppppppyl methymer-sosmer carducyy consultos ka ọ bụrụ otu edo na-agbanwe agbanwe na mgbanwe dị elu na viscosity dị elu. Ngwakọta polymene na-agụnye polycolyylene glycol, polyvinyl acetate, polyvinyl violinocane, polymethyl vinyl silloxane, hydroxyethy cellulose na methyl cellulose. Ngwakọta polymer polymer dị ka gum Arabic, igurube bean, na gum, wdg nwekwara ezigbo ikwu okwu na ihe ngwọta ya. Enwere ike ịgwakọta ya na Mannitol ma ọ bụ sorbitlol Esta acid acid ma ọ bụ palimic acid, ma nwee ike ịgwakọta ya na glycerin, sotrol na mannitol. Enwere ike iji ogige ndị a dị ka hydropyylthylthylthylthylthylthylthylthylthylthylthylthylcelllose. Classizer nke cellizer.
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A na-eji usoro nke na-enweghị mmiri na-egbochi mmiri nke ọma. Ndị Aldehydes na-eme hydropyyl Methylcellose insulable gụnyere usoro, glycaldehyde, Gylinaldehyde, wdg mgbe iji Glyoxal na-eme ngwa ngwa. Ya mere, a na-eji Glyoxal na-ejikarị ihe nnọchi anya na mmepụta mmepụta ihe. Usoro nke ụdị a na-achọsi ike na ihe ngwọta bụ 0.2% nke Ether uka, ọkacha mma 7% ~ 6% bụ ihe kachasị mma maka glixal. Ọgwụgwụ ọgwụgwọ General bụ 0 ~ 30 ℃, na oge bụ 1 ~ 120min. Mmeghachi omume na-edozi ahụ chọrọ ka a rụọ ọrụ n'okpuru ọnọdụ acidic. Na mkpokọta, inorganic siri ike ma ọ bụ osisi orgaxylic acid na-agbakwunye na ngwọta iji mezie ihe ngwọta ihe dị ka 2 ~ 6, ma mgbe ahụ, a ga-atụkwasịkwa mmeghachi omume iji mezuo mmeso na-enweghị njikọ. . Acids eji hydrochloric acid, sulfuric acid, phosphoric acid, actic acid, nke acid acid ma ọ bụ acid acid kwesịrị ekwesị, yana eto acid bụ ezigbo mma. Enwere ike itinye acid na Aldehyde nwekwara n'otu oge iji mee ka ihe ngwọta na-aga n'ihu na-aga. A na-ejikarị mmeghachi omume a na usoro ọgwụgwọ ikpeazụ na usoro nkwadebe nke eyers. Mgbe selị et lekwasịrị anya, ọ dabara adaba iji mmiri na-asacha na 20 ~ 25 Celsius. Mgbe ngwaahịa dị na ya, enwere ike ịgbakwunye alkaline ihe ngwọta na ngwọta nke ngwaahịa a iji mezie ph nke ihe ngwọta ị ga-abụ alkaline, ngwaahịa ahụ ga-agbari na ngwọta ngwa ngwa. Usoro a dịkwa ka ọ dị na sel eth ga-eme ka ọ bụrụ ihe nkiri ma mechaa ihe nkiri ahụ iji mee ka ọ bụrụ ihe nkiri zoro ezo.
6. Hydroxypyl Methylcellose na-eguzogide na enzymes
Hydroxypyl Methylcellose na-eguzogide enzymes. Na nkuzi, dị ka ndị otu a na-ahụkarị, na-eme ka ihe ndị a na-ejikọ ọnụ, ọ ga-emekwa ka ọ dị nkọ na-ebute ya, na obere ihe A na-ejikọkarị otu na -eche otu. , nke na-etinye aka dị ka ihe oriri maka microorganisms. Ya mere, ọ bụrụ n 'ogo nke elu sellulose na-abawanye, a na-eme ka eguzogide erosion nke celllose ever ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether. A na-akọ na viscosity vidity nke hydroxypylthythylthylthyl bụ 13.2%, methycelllose (ds = 1.6) bụ 3.8%, na hydroxyethyth cellulose bụ 1.7%. Enwere ike ịhụ ya na ike enzyme nke hydropyythlthyl methylcellose siri ike. Ya mere, ezigbo Endyme iguzogide nke hydypyl Methylcellose, jikọtara ya na ezigbo nchụsa, na-ejikarị ihe na-acha uhie uhie, wdg, na n'ozuzu ya anaghị achọ mgbakwunye nke nchekwa. Agbanyeghị, maka nchekwa ogologo oge nke ihe ngwọta ahụ ma ọ bụ mmetọ ndị ga-ekwe omume nke ụwa, enwere ike ịgbakwunye ihe ga-eme ka a ga-akpachara anya dabere na ihe ngwọta. Phenlmeric acetate na fluenese fluervative bụ ihe na - egbu maramara dị irè, mana ha nwere obi ụtọ ma ọ bụrụ na usoro ọgwụgwọ a, na usoro ọgwụgwọ phenlmeric acetate kwa lita lita.
7. Njirimara nke hydropyylthythl methylcellose fim
Nrụpụta nke hydypypyl Methylcelllose ihe nkiri methylclopy nwere ihe ngwọta dị mma na-akpụ akpụ akpụ akpụ akpụ akpụ akpụ akpụ na iko iko, ọ na-enweghị agba na transpornt mgbe ọkpọchara. Na ihe nkiri siri ike. O nwere ezigbo nguzogide mmiri ma na-eguzosi ike na okpomọkụ okpomọkụ. Dịka ọmụmaatụ, ịgbakwunye hygroscopic postizer nwere ike ịkwalite ogo ya na mgbanwe. Iji meziwanye mgbanwe, fọdụrụ ndị dị ka Glycerin na Sornollol bụ ihe dabara adaba. Ngwọta Ngwọta General bụ 2% ~ 3%, na ọnụọgụ plastizer bụ 10% ~ 20% nke cellulose ether. Ọ bụrụ na ọdịnaya plastizer dị oke elu, ihe ngbasa ahụ dị egwu nke colloid na-egbu egbu ga-eme n'okpuru iru mmiri dị elu. Ike Tensile nke ihe nkiri ahụ na plastikfer kwukwara dị ukwuu karịa nke na-enweghị rọba, ọ na-abawanye site na mmụba nke ego agbakwunyere. Banyere hygroscopity nke fim ahụ, ọ na-abawanye na mmụba nke ego plastizer.
Oge post: Feb-20-2025