Focus on Cellulose ethers

Ọdịiche dị n'etiti hypromellose ngwa ngwa na hypromellose soluble na-ekpo ọkụ

Ọdịiche dị n'etiti hypromellose ngwa ngwa na hypromellose soluble na-ekpo ọkụ

Ka ọ dị ugbu a, a na-ekewa hydroxypropyl methylcellulose n'ahịa ụlọ n'ụdị na-ekpo ọkụ na-ekpo ọkụ (nke a na-akpọkwa ngwa ngwa ngwa ngwa) na ụdị mgbaze ngwa ngwa, na ụdị mgbaze ọkụ bụkwa ụdị cellulose kachasị ewu ewu na nke a na-ejikarị eme ihe.

Hot-agbaze (nwayọọ-agbaze) hydroxypropyl methylcellulose HPMC ka ejibeghị glycoxal.Ọ bụrụ na ọnụ ọgụgụ glycoxal buru ibu, nkesa ahụ ga-adị ngwa ngwa, ma viscosity ga-abawanye nwayọọ nwayọọ, ma ọ bụrụ na ọnụ ọgụgụ ahụ dị ntakịrị, ihe na-abụghị eziokwu.Hydroxypropyl methylcellulose HPMC ga-agbakọta ọnụ mgbe ọ zutere mmiri oyi (ma ọnọdụ a ga-agbazekwa nwayọọ nwayọọ, ma ọ na-ewe ogologo oge.), Ma ọ ga-adị ngwa ngwa gbasaa na mmiri na mmiri ọkụ ruo mgbe Ọ na-apụ kpamkpam na mmiri, na viscosity ya na-abawanye. nwayọọ nwayọọ mgbe okpomọkụ na-ada nwayọọ nwayọọ ruo mgbe ọ ga-aghọ mmiri mmiri na-egbuke egbuke.Ya clumping onu yiri mgbasa nke elu viscosity sodium carboxymethyl cellulose.Mgbe cellulose ntụ ntụ n'èzí mmiri gbazere, ọ na-aghọ viscous, wee kechie cellulose n'ime nke na-emetụghị mmiri ahụ, ma ọnọdụ a ga-eji nwayọọ nwayọọ gbazee, ma ọ ga-ewe ogologo oge.

Ụdị ngwa ngwa hydroxypropyl methylcellulose HPMC ka ejiri glioxal gwọọ ya n'elu.Ọ na-agbasa ngwa ngwa na mmiri oyi, mana ọ naghị agbaze n'ezie.Ọ na-ewe oge maka viscosity ya ebili, n'ihi na ọ na-agbasa na mmiri na mmalite mmalite, nke na-abụghị ihe dị mkpa.Maka mgbasa nke dị n'elu, viscosity ruru oke uru n'ime ihe dị ka nkeji iri anọ.Mgbe viscosity na-ebili, ngwọta mmiri na-apụta ìhè ma doo anya, nke bụ ezigbo mgbasa.A na-eji ụdị ngwa ngwa hydroxypropyl methylcellulose HPMC na ụlọ ọrụ a kapịrị ọnụ, a gaghị ejikọta ya na ntụ ntụ akọrọ, ma ọ bụ mgbe ọ dị mkpa ka a gbazee na mmiri ọkụ enweghị ike iji ya n'ihi ọnọdụ akụrụngwa na ihe ndị ọzọ, ụdị hypromellose Cellulose dabeere na ngwa ngwa. na nsogbu siri ike dị otú ahụ.


Oge nzipu: Mee-09-2023
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