Bohloeki ba hydroxypropyl methylcellulose ka har'a seretse sa ho thibela moaho le phofo ea putty bo ama ka kotloloho boleng ba kaho ea boenjiniere, joale ke lintlha life tse amang bohloeki ba hydroxypropyl methylcellulose? E re ke u arabe potso ena.
Ts'ebetsong ea tlhahiso ea hydroxypropyl methylcellulose, oksijene e setseng ka har'a reactor e tla baka ho senyeha ha hydroxypropyl methylcellulose le ho fokotsa boima ba limolek'hule, empa oksijene e setseng e lekanyelitsoe, ha feela ho se thata haholo ho kopanya limolek'hule tse robehileng hape Koluoa. Sekhahla sa bohlokoa ka ho fetisisa sa ho tlala 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 kantle ho naha.
Sekhahla sa ho boloka metsi sa hydroxypropyl methylcellulose le sona se na le kamano e ntle le hydroxypropyl, 'me bakeng sa ts'ebetso eohle ea karabelo, hydroxypropyl e boetse e fumana sekhahla sa ho boloka metsi sa hydroxypropyl methylcellulose. Tšusumetso ea alkaliization, karolelano ea methyl chloride le propylene oxide, mahloriso a alkali le 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 karolelano ea ts'ebetso, karolelano ea li-solvents le phello ea neutralization kaofela li khetholla boleng ba hydroxypropyl methylcellulose, 'me hydroxypropyl methylcellulose e itseng e etsoa hore e qhibilihe Kamora moo, ho ne ho le maru joalo ka ha ho eketsoa lebese, tse ling li ne li le tšoeu joaloka lebese, tse ling li le mosehla, 'me tse ling li ne li hlakile ebile li bonaletsa. Haeba u batla ho e rarolla, fetola ho tloha lintlheng tse ka holimo. Ka linako tse ling acetic acid e ka ama phetisetso ea leseli ka botebo. Ho molemo ho sebelisa acetic acid kamora ho hlapolloa. Tšusumetso e kholo ke hore na karabelo e hlohlelletsoa ka ho lekana le hore na karolelano ea sistimi e tsitsitse (lisebelisoa tse ling li na le mongobo 'me litaba ha li tsitse, joalo ka li-solvents tse sebelisoang 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. Phetisetso ea leseli e ke ke ea feta mefuta ea ±2%, 'me ho tšoana ha sebaka sa lihlopha tse nkeloang sebaka ho tlameha ho laoloa hantle. Ho e-na le ho tšoana, phetisetso ea leseli e tla ba ntle.
Nako ea poso: Mots'eanong-30-2023