Pyromellitic Dianhydride Ka CAS 89-32-7
The pyromellitic dianhydride (e khutsufalitsoeng e le PMDA), e sebelisoang haholo-holo bakeng sa motsoako oa polyimide, hobane polyimide e na le mocheso o phahameng ka ho fetisisa oa mocheso, acid le alkali resistance, e babatsehang Ka lebaka la thepa ea eona ea mechine, thepa ea motlakase le botsitso ba dimensional, e atile haholo. e sebelisoang masimong a theknoloji e phahameng joalo ka sefofane, sefofane, microelectronics le matla a athomo, a nang le litlhoko tse tiileng tsa thepa ea thepa.
| Ntho | Standard |
| Ponahalo | Likristale tse tšoeu |
| Mntlha e phahameng | 286 ℃-288 ℃ |
| Phehisano ea mahala ea acid | ≤0.5wt% |
| PURITY(%) | ≥99.5% |
Pyromellitic dianhydride (PMDA) ke thepa e tala ea bohlokoa indastering ea organic synthesis, hammoho le lisebelisoa tse tala tsa motheo bakeng sa nts'etsopele ea lisebelisoa tse ncha tsa lik'hemik'hale le lihlahisoa tse phahameng tsa boleng ba lik'hemik'hale tse ntle. E sebelisoa haholo-holo bakeng sa tlhahiso ea polyimide monomers, 'me e ka boela ea sebelisoa e le Pheko bakeng sa epoxy resin le cross-linking agent bakeng sa resin ea polyester, e sebelisoang ho etsa dae e putsoa ea phthalocyanine le lintho tse ling tsa bohlokoa, joalo-joalo. mefuta e mengata ya tshebediso. Pyromellitic dianhydride, eo hape e tsejoang e le homoanhydride, e na le mohaho o khethehileng oa limolek'hule 'me e ka sebelisoa ho etsa lisebelisoa tse nang le mocheso o thibelang mocheso, motlakase oa motlakase le lik'hemik'hale tsa lik'hemik'hale, tseo har'a tsona tšebeliso ea bohlokoa ka ho fetisisa e le monolayer ea polyimide. E entsoe ka diamine e nkhang hamonate ho fumana polasetiki ea polyimide, empa bohloeki ba pyromellitic dianhydride bo phahame haholo, bo hlokang ho feta 99%.
25kgs/drum, 9tons/20'container
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Pyromellitic Dianhydride Ka CAS 89-32-7
Pyromellitic Dianhydride Ka CAS 89-32-7
