Hydroxypylthylththyththylcelllose bụ ụdị mkpụrụ ndụ cellulose agwakọta ether. N'adịghị ka cellylyythythylythyl cellulose agwakọta ether, ọ naghị emeghachi omume na ọla dị arọ. N'ihi ọdịnaya methoxy dị iche na ọdịnaya hydroxypyl Methylypyl na ọdịnaya methoxyl na-arụ ọrụ na nke methyl dị nso na nke hydroxyl dị nso na hydropyythyl . Agbanyeghị, na n'ụzọ ọ bụla, ọ bụ ezie na obere obere otu ma ọ bụ obere ego nke methoxyl nwere, enwere nnukwu ọdịiche na solution organic ma ọ bụ nke frocculation ahụ.
(1) Njirimara solumetives nke hydropyythylthylthylthyl
Njegharị nke hydropyythylcelllose na mmiri hydyplopy na-agbanwe agbanwe site na propylene oxide (metylene) nwere njiri mara nke mmiri oyi na mgbochi mmiri mmiri. Agbanyeghị, n'ihi mgbanwe hydropyyl na-agbanwe agbanwe, okpomoku ya na mmiri ọkụ dị elu karịa nke methy cellulose. Iji maa atụ, viscosity hydroxypyl methylcelltose dị na ogo DS = 0.46 bụ 500 na ọkara nke methypyl na 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 0.2 ~ 0,5m na 20 Pan nwere ike zụta na ụlọ okpomọkụ, ọ na-agbanye na mmiri na-enweghị ajụ.
Njegharị nke hydropyyl methylcelllose na sonvics na-edozi solubality nke hydyplopyl methylcellulose na sonveltic dịkwa mma karịa nke methylcelllose. Methylcellose kwesịrị inwe ogo Methoxyl nke 2.1 ngwaahịa dị n'elu (1.5 ~ 1.0, na ngụkọta nke methanol na ngụkọta nke methanol na ethows, ma nwee okpomọkụ-plastity na mmiri solibenity. Ọ dịkwa mma na chlorinated hydrocarbons dị ka metylene chloride na chloroform, na-edozi ahụ dị ka acketone na mmanya na-egbu egbu. Ihe sonyere ya na ihe ndozi nke ihe di nma karie ka ekwenti.
(2) Ihe na-emetụta viscosity nke Hydroxyl Methyl Cency Version nke Hydropyl Methyl Methyl Cellulose bụ otu nke ndị ọzọ. A tụrụ ya na 20 ° C na 2% overque dị ka ọkọlọtọ. 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 molecular nwere oke viocosity nwere. Mmekọrịta ya na ọnọdụ okpomọkụ yiri nke Methy Cellulose. Mgbe ọnọdụ okpomọkụ na-ebili, vissiosit bidoro, ma mgbe ọ ruru ụfọdụ okpomọkụ, visassese na mberede na-awa na geliran na-ebigbọ na mberede. Ọnọdụ gel nke ngwaahịa viscosise dị elu dị elu. dị elu. Ọ bụghị naanị na Gel na-ahụ maka viscosity nke ether, kamakwa metụtara ihe mejupụtara nha nke methoxyl otu na otu hydroxyl na ogo ngụkọta. Ekwesịrị ịchọpụta na hydropyythylthylthylthylthylthythylcellose bụkwa pseudoplastic, na ihe ngwọta ya kwụsiri ike na ọnọdụ okpomọkụ na-enweghị nkọcha nke viscosit ma ọ bụrụ na enwere ike imebi emebi emebi.
(3) Ntama nnu nke hydypypyl methylcelllilose bụ ndị na-abụghị nke IEH-IEHICETLOST, dị ka celloxyyyyyyyyyyyyythym na cellulose, na ihe ngwọta iji meghachi omume na eriri ọla na nke ọma. Nnu n'ozuzu dika chloride, bride, phosphate, nitrate, wdg agaghị enwe ike ịgbakwunye ya na ya. Agbanyeghị, mgbakwunye nke nnu nwere ụfọdụ mmetụta na ihu igwe nke oghere ya. Mgbe ịta nnu na-abawanye, ọnọdụ gel na-ebelata. Mgbe ịta nnu dị n'okpuru ebe a na-acha uhie uhie, viscosis nke ihe ngwọta na-abawanye. Ya mere, a na-agbakwunye nnu nnu, na ntinye, ọ nwere ike nweta oke mmetụta karịa akụ na ụba. Ya mere, na ụfọdụ ngwa, ọ ka mma iji ngwakọta nke cellulose ether na nnu karịa oke ịta nke eather iji nweta mmetụta na-arụ ọrụ.
(4) hydroxylthyl methylcellose hydropyyhropylilose bụ ndị kwụsiri ike na acids na alkalis, ma anaghị emetụta ya na mpaghara PH 2 ~ 12. Ọ nwere ike iguzogide ụfọdụ nke Ìhè acid, dị ka acid acid, actic acid, citric acid, phosphic acid, wdg acid acid na-enwe mmetụta nke ibelata viscosity. Alkalis dị ka cauustic soda, mmiri ga-enweta mmiri na-enweghị mmetụta na ya, mana ha nwere ike iwelata viscosit nke ihe ngwọta ahụ, wee jiri nwayọ belata ya.
(5) Nghọta na-emehie hydypypyl Methymerpyl Methymerpyl ka ọ bụrụ otu edo edo na ụdị mgbanwe dị elu na viscosity dị elu. Ngwakọta polymenen gụnyere polymethylene glycol, polyvinyl acetate, polyninyl acetate, polysilicone, polysilicone, polymethyllinyl silose, hydroxyethy na methy cellulose. Akụrụ dị elu molecular dị ka gum Arabic, igurube bean, na gum, wdg nwekwara ezigbo ndabara na ihe ngwọta ya. Enwere ike ịgwakọta ya na Ester Ester ma ọ bụ sorbil Ester nke jupụtara na palitic, ma nwee ike ijikọ ya na palitlitic, soorthic na mannitylthylthylthyl.
(6) A na-eme ka mmiri na-egbochi mmiri nke na-egbochi ihe ọkụkụ na-ejikọ elu nwere ike ijikọ na Aldehydes, nke mere na a na-eme ka mmiri mmiri a na-egbochi ya. A na-akwụ ụgwọ hydypypyl methylcellose na-etinye usoro, glyxic, supaldehyde, nke a na-ejikarị Gonly. mmepụta. Usoro nke ụdị njikọta nke Cross na-aga n'ihu na ngwọta bụ 0.2% nke oke nke ether, ọkacha mma 7% ~ 6% nke glyoxal bụ ihe dabara adaba. N'ozuzu, ọgwụgwọ ọgwụgwọ dị 0 ~ 30 ℃, na oge bụ 1 ~ 120min. Ihe na-egbochi ihe mgbochi na-aga n'ihu n'okpuru ọnọdụ acidic. N'ozuzu, ph nke ihe ngwọta a gbanwere ihe dị ka 2 ~ 6 site na ịgbakwunye inoorganic siri ike, a na-agbakwunye na ngalaba 4 ~ 6, ma mgbe ahụ, a na-agbakwunye Aldehydes ka ọ na-eme mmeghachi omume. Ejiri acid acid nwere hydrochloric acid, sulfuric acid, phosphoric acid, actic acid, nke actic acid ma ọ bụ acid acid dị mma, ma na-eto acid dị mma. Enwere ike itinye acid na Aldehyde n'otu oge iji mee ka ihe ngwọta ị ga-esi na-eme mmeghachi omume na-edozi ahụ. A na-ejikarị mmeghachi omume a na usoro ọgwụgwọ ikpeazụ na usoro nkwadebe nke eyers. Mgbe mkpụrụ osisi ever ether enweghị nsogbu, ọ dabara adaba iji.
20 ~ 25 ℃ mmiri maka ịsacha na ịdị ọcha. Mgbe ngwaahịa a na-eji, enwere ike ịgbakwunye alkaline na ihe ngwọta nke ngwaahịa a iji dozie pH nke ihe ngwọta ị ga-abụ alkaline, ngwaahịa ahụ ga-agbari na ngwọta ahụ ngwa ngwa. Usoro a dịkwa ka ọgwụgwọ nke ihe nkiri ahụ mgbe mkpụrụ osisi etịpụ Eeller na-eme ka ọ bụrụ ihe nkiri iji mee ka ọ bụrụ ihe nkiri na-ezo ezo.
(7) enzyme iguzogide nke hydypyl Methyllose metyllose, ọ bụghị na a na-eme ihe eji arụ ọrụ, ọ ga-emebi ya nke ọma, ọ ga-emebi site na enzymes, nke pụtara na ogo nke dochie anya Otu ọ bụla na mgbatị ahụ cellugul ezughị ezu, ma microorganisms nwere ike imebi ndị otu a na-enweghị atụ iji mepụta sugars, dị ka nri maka microorganisms iji nweta obere. Ya mere, ọ bụrụ na ogo ogo nke cellulose na-abawanye, nguzogide nke Enzymatic Enzymetic nke Ether ga-abawanye. Dabere na akụkọ, nke a na-achịkwa, nsonaazụ hydrolysis nke enzymcelllose (DS = 1.6) bụ 3.8%, na hydroxyethyth cellulose bụ 1.7%. Enwere ike ịhụ na hydroxypyl methylcelllose nwere ikike mgbochi Enzyme siri ike. Ya mere, a na-ejigide nguzogide mara mma nke hydypyl methylcellose, jikọtara ya na ezigbo nchụsa, na-eji ya na ihe mkpuchi-emulsion, wdg, ọ dịghị mkpa itinye nchekwa. Agbanyeghị, maka nchekwa ogologo oge nke ihe ngwọta ahụ ma ọ bụ mmerụ ahụ sitere n'èzí, enwere ike ịgbakwunye atụmatụ dị ka ihe ga-ekpebi ihe ngwọta ya. Phenlmeric acetate na fluenese fluevatication bụ nchekwa dị irè nchekwa, ma ha niile nwere oke mma, a ga-akwụsi ntị na ọrụ ahụ. Ohaneze, 1 ~ 5mg nke Phenetmarcing acetate nwere ike ịgbakwunye na ngwọta kwa liter nke usoro onunu ogwu.
(8) arụmọrụ nke ihe nkiri na-eme ihe ngosi hydylcellopse ihe nkiri methylcellose nwere ezigbo ihe nkiri na-akpụ akpụ. Ngwọta ya nke ihe ngwọta ya ma ọ bụ ihe mgbaze orvac dị na iko iko, ọ na-enweghị agba na transperent mgbe ihichachara. Na ihe nkiri siri ike. O nwere ezigbo nguzogide mmiri ma na-eguzosi ike na okpomọkụ okpomọkụ. Ọ bụrụ na agbakwunye hyggroscopic plastiner, a pụrụ ịkwalite elu ya na mgbanwe ya. N'ihe banyere imeziwanye mgbanwe, fọdụrụ ndị dị ka Glycerin na Sornol bụ ihe dabara adaba. N'ozuzu, ịta ihe ngwọta bụ 2% ~ 3%, na ọnụọgụ plastizer bụ 10% ~ 20% nke cellulose ether. Ọ bụrụ na ọdịnaya nke plastizer dị oke elu, ihe mgbu colloidal na-emebi ihe ga-eme na 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 oke plastizer.
Oge post: Jun-13-2023