Lenane la viscosity eahydroxypropyl methylcelluloseke index ea bohlokoa haholo.Viscosity ha e emele bohloeki.The viscosity ea cellulose HPMC itšetlehile ka tshebetso tlhahiso.Libaka tse fapaneng tsa ts'ebeliso li lokela ho khetha HPMC ea cellulose e nang le li-viscosity tse fapaneng, eseng ho phahama ha viscosity ea cellulose HPMC, ho molemo!Se nepahetseng se nepahetse √
Taolo ea Viscosity
1. High-viscosity hydroxypropyl methylcellulose e ke ke ea hlahisa selulose e phahameng haholo feela ka ho hloekisa le ho nkela nitrogen sebaka.Ka kakaretso, tlhahiso ea cellulose e phahameng ea viscosity Chaena e ke ke ea laoloa.Leha ho le joalo, haeba sesebelisoa sa ho lekanya oksijene se ka kenngoa ka kettle, tlhahiso ea viscosity e ka laoloa ka mokhoa oa maiketsetso.
Tšebeliso ea li-asociative agents
2. Ho phaella moo, ha ho nahanoa ka lebelo la phetoho ea naetrojene, 'me ka nako e ts'oanang, ho bonolo haholo ho hlahisa lihlahisoa tse phahameng tsa viscosity ho sa tsotellehe hore na tsamaiso e na le moea o matla hakae.Ehlile, tekanyo ea polymerization ea k'hothone e hloekisitsoeng le eona e bohlokoa.Haeba seo se sa sebetse, se etse ka hydrophobic association.Ho na le li-asociative agents tsa malapeng tabeng ena.Ke mofuta ofe oa moemeli ea kopanetsoeng o khethiloeng o na le tšusumetso e kholo ts'ebetsong ea sehlahisoa sa ho qetela.
Likahare tsa Hydroxypropyl
3. Oksijene e setseng ka har'a reactor e lebisa ho senyeha ha selulose le ho fokotsa boima ba limolek'hule, empa oksijene e setseng e lekanyelitsoe.Ha ho thata ho etsa viscosity e phahameng hafeela limolek'hule tse robehileng li kopantsoe hape.Leha ho le joalo, sekhahla sa ho tlala metsi se boetse se amana haufi-ufi le litaba tsa hydroxypropyl.Lifeme tse ling li batla feela ho fokotsa litšenyehelo le theko, 'me ha li ikemisetse ho eketsa litaba tsa hydroxypropyl, kahoo boleng bo ke ke ba fihla boemong ba lihlahisoa tse tšoanang tsa linaheng tse ling.
lintlha tse ling
4. Sekhahla sa ho boloka metsi sa sehlahisoa se na le kamano e kholo le hydroxypropyl, empa bakeng sa ts'ebetso eohle ea ho itšoara, e boetse e lekanyetsa tekanyo ea eona ea ho boloka metsi, phello ea alkalization, karo-karolelano ea methyl chloride le propylene oxide, le mahloriso a alkali. .'Me karolelano ea metsi ho k'hothone e hloekisitsoeng e etsa qeto ea hore na sehlahisoa se sebetsa joang.
Nako ea poso: Oct-19-2022