The dị elu viscosity nke hydroxypropyythyl metylcellose, ka mma mmiri na-arụ ọrụ. 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 Roke Rotovisko, Hopler, Ubellehde na Brookfield.
Maka otu ngwaahịa ahụ, nsonaazụ vissityzọ vis dị iche iche dị iche iche, ụfọdụ ọbụna okpukpu abụọ dị iche. Ya mere, mgbe anyị tụnyere viscosity, jide n'aka na ị ga-eme ya n'etiti ụzọ nnwale ahụ, gụnyere okpomọkụ, rotor, wdg.
N'ihi na urughuru nha, nke kachasị mma, mma njigide mmiri. Mgbe nnukwu mkpụrụ osisi cellulose etler na-abanye na mmiri, elu weghaara ozugbo iji mepụta gel, nke na-ekpuchi ihe ndị na-aga n'ihu na-aga n'ihu. . Ọ na - emetụta oke mmiri nke cellulose ether, na solings bụ otu n'ime ihe maka ịhọrọ ether. Nmapụta bụkwa ihe dị mkpa arụmọrụ arụmọrụ nke methyl cellulose ether. A chọrọ MC eji maka ngwa agha ntụ ntụ ntụ ntụ, ya na obere mmiri, na ọcha na-achọ 20% ruo 63UM. Faneness na-emetụta ngbasa nke hydropyythyl methylcellose ether. Akpansị mc na-abụkarị granular, ọ dị mfe ịgbafe na mmiri na-enweghị agglomeration, mana ọnụ ọgụgụ na-adịghị ada ada, yabụ na ọ dịghị mma maka ngwa agha. Na akọrọ ntụ ntụ, Mc na-agbasa n'etiti ihe ndị a na-akọ ciments dị ka nchịkọta, ọfụma na ciment. Naanị ezigbo ntụ ntụ zuru ezu nwere ike izere agglomeration nke methyl clasdose ether mgbe ị na-agwakọta mmiri. Mgbe agbakwunye Mc na mmiri iji gbazee agglomerates, o siri ike ịgbasa ma gbazee. Mc na anụ ọhịa nke na-ere ere abụghị naanị ihe na-emebi emebi, kamakwa na-ebelata ike mpaghara nke ngwa agha. Mgbe a na-eji ngwa agha akọrọ a na-eji nnukwu mpaghara a na-eji obere mpaghara a na-ebelata ngwa agha nke mpaghara a na-ebelata n'ihi oge dị iche iche. Maka ịgba awara awara awara awara awara awara awara awara, n'ihi oge na-akpali akpali, a na-achọ ọnụ ọgụgụ dị elu.
N'ikwu na-ekwu, viscosity dị elu, ka mma idogide mmiri. Agbanyeghị, viscosity na elu molecular arọ nke MC, mbelata nke na-ezighi ezi, nke nwere mmetụta na-adịghị mma na ike na akụrụngwa owuwu nke ngwa agha. Na viscosity dị elu, ihe doro anya karị na-emetụta nsonaazụ nke ngwa agha, mana ọ bụghị nke ahụ. Nga ahụ dị elu, ka ị na-achọkarị mmiri mmiri ga-abụ. N'oge a na-ewu ihe, ọ ga-arapara n'ahụ scrapa ma nwee ezigbo ndọnye dị elu na mkpụrụ. Mana ọ dị obere iwelite ike nke mgbochi mmiri n'onwe ya. N'oge a na-ewu ihe, arụmọrụ nke arụmọrụ abụghị ihe doro anya. Kama nke ahụ, ụfọdụ viscosity mana ndị na-emepụta methy cellusose nwere arụmọrụ dị mma na imeziwanye ike mgbochi mmiri nke ngwa agha.
The buru ibu nke cellulose ether kwukwara na ngwa agha, ka mma mmiri ijigide na viscosity, ka mma ịrụ ọrụ njigide mmiri.
Ọnụ ọgụgụ HPMC nwekwara ụfọdụ mmetụta na njigide mmiri ya. N'ikwu okwu n'ozuzu, maka Ethers Cellushose nwere otu viscosity mana ịdị mma dị iche iche, n'ihe banyere mgbakwunye, ihe kachasị mma, ọ ka mma ijigide ya.
Njikọ mmiri nke HPMC na-emetụtakwa ọnọdụ okpomọkụ eji, na njigide mmiri nke methy cellulose ether na-agbadata na mmụba nke okpomọkụ. Agbanyeghị, ngwa ndị dị irè, a na-etinye ngwa agha akọrọ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na oke okpomọkụ (dị elu karịa ogo 40 na-agbatị plasta na ike nkụda mmụọ. The Drabe na njigide mmiri emeela ka echiche doro anya na nguzogide ọrụ na nguzogide na-emetụta ya, ọ na-akatọkarị ihe ndị metụtara ọnọdụ okpomọkụ n'okpuru ọnọdụ ndị dị otú ahụ. Ọ bụ ezie na a na-ewere Methythythythyl mkpụrụ osisi na-ebute ụzọ nke mmepe teknụzụ, ọ dabere na ọnọdụ okpomọkụ nwere ike iduga na mmebi ngwa agha akọrọ. Ọ bụ ezie na ego Methylyythyythythythythyth Cellulose (usoro ọkọchị) na-abawanye, ọrụ ike na ngọngọ na-eguzogide enweghị ike iru mkpa nke ojiji. Site na ụfọdụ ọgwụgwọ pụrụ iche, dị ka ịbawanye ogo ogo, Mc nwere ike idobe njigide mmiri ya ka mma na elu okpomọkụ, ka ọ nwee ike ịnye arụmọrụ ka mma n'okpuru ọnọdụ ike.
Oge post: Feb-20-2025