ʻAʻohe Cas: 89-32-7 PMDA Pyromellitic dianhydride
Hoʻolauna pōkole
ʻO Pyromellitic dianhydride (PMDA), nā huahana maʻemaʻe he keʻokeʻo a he melemele iki paha nā kristal. Ke hōʻike ʻia i ka ea pulu e omo koke i ka makū mai ka lewa a hydrolyzed i loko o Pyromellitic Acid. Hoʻoheheʻe ʻia i loko o ka dimethyl sulfoxide, dimethylformamide, acetone a me nā mea hoʻoheheʻe organik ʻē aʻe, hiki ʻole ke hoʻoheheʻe ʻia i ka ether, chloroformand benzene. Hoʻohana nui ʻia ma ke ʻano he mea maka no ka polyimide, a me ka mea hoʻopili crosslinking no ka hana ʻana i ka mea hoʻōla epoxy a me ka pau ʻana o ka resin polyester.
ʻO ka waikawa Pyromellitic (PMA), i ʻike ʻia hoʻi ʻo 1,2,4,5-benzenetetracarboxylicacid, keʻokeʻo a i ka kristal pauka melemele, hoʻohana nui ʻia i ka hana ʻana o ka polyimide, octyl pyromelliate, a me nā mea ʻē aʻe, ʻo ia ka mea nui no ka hana ʻana o ka mea hoʻōla matting.
| MEA | PMDA | PMA |
| Maʻemaʻe wt% | 99.5% | 99% |
| ʻO ke koena o ka Acetone PPM | 1500 | / |
| Kiko heheʻe | 284~288 | / |
| Waihoʻoluʻu | Keʻokeʻo a melemele | Keʻokeʻo |
| ʻAkika manuahi wt% | 0.5 | / |
| Ka nui o ka ʻāpana | Ma ke koi a ka mea kūʻai aku | Ma ke koi a ka mea kūʻai aku |
E ʻoluʻolu e hoʻokaʻaʻike mai iā mākou e kiʻi i ka COA a me ka MSDS. Mahalo.
