Ho hloeka ha hydroxypropyl methylcellulose ho haha seretse sa ho kenya letsoho le putty powder ho ama ka ho toba boleng ba mohaho oa boenjiniere, joale ke lintlha life tse amang bohloeki ba hydroxypropyl methylcellulose? E re ke u arabele potso ena.
Ts'ebetsong ea tlhahiso ea hydroxypropyl methylcellulose, oksijene e setseng ka har'a mochine o tla baka ho senyeha ha hydroxypropyl methylcellulose le ho fokotsa boima ba molek'hule, empa oksijene e setseng e lekanyelitsoe, hafeela ho se thata haholo ho kopanya limolek'hule tse robehileng Koluoa. Sekhahla sa bohlokoa ka ho fetesisa sa metsi se amana haholo le litaba tsa hydroxypropyl. Lifeme tse ling li batla feela ho fokotsa litšenyehelo le theko, empa ha li batle ho eketsa litaba tsa hydroxypropyl, kahoo boleng bo ke ke ba fihla boemong ba lihlahisoa tse tšoanang tsa linaheng tse ling.
Sekhahla sa ho boloka metsi sa hydroxypropyl methylcellulose le sona se na le kamano e ntle le hydroxypropyl, mme bakeng sa ts'ebetso eohle ea karabelo, hydroxypropyl e boetse e etsa qeto ea sekhahla sa ho boloka metsi sa hydroxypropyl methylcellulose. Phello ea alkalization, karo-karolelano ea methyl chloride le propylene oxide, bongata ba alkali le karo-karolelano ea metsi ho k'hothone e hloekisitsoeng kaofela li etsa qeto ea ts'ebetso ea sehlahisoa.
Boleng ba thepa e tala, phello ea alkalization, taolo ea karo-karolelano ea ts'ebetso, karo-karolelano ea li-solvents le phello ea ho se nke lehlakore kaofela li etsa qeto ea boleng ba hydroxypropyl methylcellulose, 'me hydroxypropyl methylcellulose e etsoa ho qhibiliha Ka mor'a moo, e ne e le maru joaloka ho eketsa. lebese, tse ling li le tšoeu joaloka lebese, tse ling li le mosehla, tse ling li hlakile ebile li le pepeneneng. Haeba u batla ho e rarolla, fetola lintlha tse ka holimo. Ka linako tse ling asiti ea acetic e ka ama phetiso ea leseli haholo. Ho molemo ho sebelisa acetic acid ka mor'a ho hlapolloa. Tšusumetso e kholo ke hore na karabelo e tsosoa ka ho lekana le hore na karo-karolelano ea sistimi e tsitsitse (lisebelisoa tse ling li na le mongobo 'me litaba ha lia tsitsa, joalo ka ho sebelisa li-solvents hape). Ha e le hantle, ho na le lintlha tse ngata tse amehang. Ka botsitso ba lisebelisoa le ts'ebetso ea basebetsi ba koetlisitsoeng hantle, lihlahisoa tse hlahisoang li lokela ho ba tse tsitsitseng haholo. Phatlalatso ea leseli e ke ke ea feta boholo ba ± 2%, 'me ho tšoana ha lihlopha tse nkelang sebaka ho tlameha ho laoloa hantle. Sebakeng sa ho ts'oana, phetiso ea leseli e ne e tla ba hantle.
Nako ea poso: May-30-2023