Mmetụta ndị dị nacellugul etherDabere na: Ogo nke polymerization nke cellulose eather, ntinye uche, oke fea, okpomọkụ na ọnọdụ ndị ọzọ. Ihe onwunwe nke ihe ngwọta nke ihe ngwọta bụ pụrụ iche na alkyl Cellulose na agbanwee. Njirimara gelenation bu ihe metụtara ogo nke nbanye, itinye uche na ihe mgbakwunye. N'ihi na hydroxyalkyl na-eme ka usoro nke GErivatives, yana akụrụngwa GEN na ogo mgbanwe nke hydroxyalli. Maka obere viscosity Mc na HPMC, 10% -15% nwere ike ịkwadebe, viscosis Mc na HPMC nwere ike ịkwadebe ya, na HPMC nwere ike ịkwadebe 2% -3%, na-abụkarị Usoro nhazi viscosition nke sel sel sel na-ewute 1% -2% ngwọta.
Mkpụrụ ndụ mkpụrụ ndụ dị elu na-arụ ọrụ dị elu, na polymers nwere oke molecular nwere ụdị nlele dị iche iche na otu ụdị ịta ahụ. Enwere ike nweta ihe a lekwasịrị anya site na ịgbakwunye nnukwu molecular nke dị ala. Visatyhụ ya enweghị obere ịdabere na ọnụego ya, na ụdị vis a na-ahụ anya viscosity, chọrọ mgbakwunye na viscosity arụmọrụ. Ya mere, iji mezuo ụfọdụ mkpụrụ osisi, ụfọdụ mkpụrụ osisi cellulose (ịta nke ihe ngwọta) na usoro viscosity ga-ekwerịrị. The gel nke ngwọta nke ihe ngwọta na-ebelata ihe ngwọta na mmụba nke ngwọta nke ihe ngwọta, na gels na ụlọ okpomọkụ mgbe ị rutere ụfọdụ itinye uche. Glellings ịta nke Hpmc dị elu na ụlọ okpomọkụ.
Enwere ike idozigharị ya site na ịhọrọ nha nha ma na-ahọrọ ndị a na-enwe usoro mgbanwe cellose na ogo dị iche iche. Ndozi a na-akpọ bụ iwebata ogo ụfọdụ nke ihe nnọchianya Hydroxyallth na otu ọkpụkpụ nke MC. Site na ịgbanwe ụkpụrụ nke ihe abụọ ahụ, ya bụ, nke ahụ bụ, DS na MS nke dị iche iche banyere Methoxy na Hydroxyalky dị na-ekwu. Enwere ike ịnweta usoro arụmọrụ dị iche iche nke mkpụrụ osisi cellulose site na ịgbanwe ụkpụrụ nbanye nke ndị nwe ya.
Nnwale ọdịdị nke ọdịiche dị elu nke dị elu na-esiri ike nwere nnukwu Thixtotropy, nke bụkwa isi agwa nke sel. Ihe ngwọta osisi nke polymers MC na-enwekarị pseudoplastic na-abụghị thixotropic na-enweghị mmiri n'okpuru okpomọkụ ha, mana Njirimara Flowtonian na-adị ala. Pseudoplastity na-abawanye na oke molecular ma ọ bụ ịta ahụhụ cellulose ether, n'agbanyeghị ụdị rụrụ arụ na ogo nke dochie. Ya mere, usoro cellulose nke otu viscosit, agbanyeghị MC, HPMC, ga-egosi otu ihe ndị na-egbu egbu ihe dị ka ogologo ịta na ọnọdụ okpomọkụ na-echekwa. A na-guzobe gels mgbe a zụlitere okpomoku, ma buru oke ibu na-eme. Elu elu na-egosi ndị na-ahụ maka viocosity na-egosi ThoxOtropy ọbụna n'okpuru okpomọkụ gel. Ihe onwunwe a dị oke uru maka ndozi nke ịka nká na ịka nká nke ụlọ ngwa agha.
Ọ dị mkpa ịkọwa ya ebe a na ụdị viscosity nkecellugul ether, ka mma mmiri na-eme ka mma, ma elu molecular ibu ibu nke cellulose eth, nke nwere mmetụta na-adịghị mma na ihe ọkụkụ na ntinye. Nga ahụ dị elu, ihe doro anya na nsonaazụ ndị na-emetụ na ngwa agha, mana ọ bụghị kpam kpam. Fọdụ ndị na-ajụ ase na ala dị ala, mana mgbanwe ahụ gbanwetụrụ na-arụ ọrụ ka mma iji melite ike nke ngwa agha. Site na mmụba nke viscosity, njigide mmiri nke cellulose na-eme ka ọ dị mma.
Oge Post: APR-28-2024