Hydroxypylthylthylthylcelllose Hpmc bụ ụdị mkpụrụ ndụ cellulose agwakọta. 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 ọdịnaya Hydroxyl arụmọrụ ya dị nso na nke methyl cellulose, ebe nke dị ala Ọdịnaya Methoxy na ọdịnaya Hydroxypyl dị nso na nke hydroxypyl methyl cellulose. 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
A na-enwe ụdị ihe atụ nke hydyloppyl mmiri na-agbanwe agbanwe. Agbanyeghị, n'ihi mgbanwe hydropyyl na-agbanwe agbanwe, okpomoku ya na mmiri ọkụ dị elu karịa nke methy cellulose. Dịka ọmụmaatụ, viscosity hydroxypyl na 2% Methoxy Lique Staty DS = 0.46 bụ 500 na 20 Celsius na 100 Cel na-aga n'ihu na 100 Celsius C, mgbe Methy Cellulose na otu okpomọkụ bụ naanị ihe dịka 55 Celsius. Banyere ngbasa ya na mmiri, a na-emeziwanyekwa ya nke ukwuu. Dịka ọmụmaatụ, a na-emerịrị hydroxylthylthylthylthylthylthylthyllollose (granular hone 0.5
Igwe eji eme ihe na-edozi ihe na-edozi ahụ na-edozi ahụ, solvation solvaylithylthylthyl methylcelllose na sonvellose dị mma karịa nke Methylcelllose. Maka ngwaahịa dị n'elu 2.1, viscosis hydropyythylthylthylylyl na hydropyyylyl na methanol na methoxy ne methanol na ethanol solutions na mmiri-soluble . 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 hydroxypyl Methylclose Vandyy nke na-eme ihe na-eme ka ọ bụrụ na a na-ahụ maka 20 Celsius C nwere usoro okirikiri 2% 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, viscosis malitere ibelata, mana mgbe ọ ruru ụfọdụ okpomọkụ,
Nleta viscosity na mberede na geleran emee. 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 hydropyylthylthylthylthylmcellose bụkwa pseudoplolatistic, na ihe ngwọta ya kwụsiri ike na ọnọdụ okpomọkụ na-enweghị mmebi ọ bụla na viscosity ma ọ bụrụ na enwere ike imebi emebi emebi.
(3) Onye ntachi nnu nke hydypypyl methylcellose bụ ihe atụ na-abụghị ionic eyer, dịka ọmụmaatụ, celloxymythymylylylylylylym celludose na-emegharị ya na nnukwu eons eyment na ịpụ na ihe ngwọta. 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 na 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 Ìhè acid, dị ka acid acid, citric acid, citric acid, curic acid na-arụ ọrụ 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 polymen gụnyere polyethylene glycol, polyvinyl acetate, polysilicicone, polysilicone, polymethylvinylsilone, hydroxyethylsilocane, hydroxyethylsilose, na methyl cellose. 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) Ahịhịa mkpụrụ ndụ celluble nke hydropyyl na aldehydes dị n'elu, nke mere na a na-eme ka ndị a na-egbochi mmiri na-eme ihe ọ bụla. A na-akwụ ụgwọ hydypypyl methylcellose na-agụnye usoro, glyxic, supipaldehyde, wdg mgbe a na-eji Glyoxal na-eme ihe dị ka Cloxal onye nnọchi anya na mmepụta mmepụta ihe. Ọnụ ego nke ụdị a na-ejide onwe ya na ihe ngwọta bụ 0.2% nke oke nke ether, ọkacha mma 7% ~ 6% nke glixal bụ ihe dabara adaba. N'ozuzu, ọgwụgwọ
Okpomoku bu 0 ~ 30 ℃, na oge bu 1 ~ 120min. Mmeghachi omume na-edozi ahụ chọrọ ka a rụọ ọrụ n'okpuru ọnọdụ acidic. N'ozuzu, a na-ebu ụzọ tinye ihe ngwọta siri ike ma ọ bụ ahịhịa organic ike iji dozie PH nke ihe ngwọta ihe dị ka 2 ~ 6, wee tinye aldehydes iji mezuo mmeso na-ejikọ ọnụ. Ejiri acid acid nwere hydrochloric acid, sulfuric acid, phosphoric acid, actic acid, nke actic acid ma ọ bụ ihe dị mma, na 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 e nwere selt ethalcuble, 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 nguzogide nke hydypyl methyllose methyllose na-eme, ọ bụrụ na ọ dị mfe ibute ndị microorganisms, mana n'ezie ngwaahịa ndị ruru 1, ọ ga-emebi site na enzymes, nke pụtara na ogo nke dochie anya nke otu cellulose na-adịghị ahụkarị, dị ka ihe oriri maka microorganisms ịmịkọrọ. 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 nchịkwa hydrolysis nke enzyy, methycelllose (ds = 1.6) bụ 1.66) bụ 3.8%, na hydroxyethythyth 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) Nrụpụta nke Hydypropyl Methylcelltose ihe nkiri Saydropyythlthylthylthylthyl methylclose 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 Tonsale nke ihe nkiri ahụ
Clavizer kwukwara na nke ukwuu karịa nke na-enweghị rọma, ọ na-abawanye site na mmụba nke ego agbakwunyere. Banyere hygroscopity nke fim ahụ, ọ na-abawanye na mmụba nke oke plastizer.
Oge Post: Nov-24-2022