Pyromellitic Dianhydride Me CAS 89-32-7
ʻO ka pyromellitic dianhydride (i hoʻopau ʻia e like me PMDA), ka mea i hoʻohana nui ʻia no ka synthesis o polyimide, no ka mea, ʻoi aku ka maikaʻi o ka polyimide i ke kūpaʻa wela ultra-kiʻekiʻe, ka waikawa a me ke kūpaʻa alkali, maikaʻi loa Ma muli o kona mau ʻano mechanical, nā waiwai uila a me ke kūpaʻa dimensional, ua ākea. hoʻohana ʻia i nā ʻenehana kiʻekiʻe e like me ka mokulele, aerospace, microelectronics a me ka ikehu atomic, nona nā koi koʻikoʻi i nā waiwai waiwai.
| 'ikamu | Kūlana |
| Ka nana aku | Nā aniani keʻokeʻo |
| Mwahi elting | 286 ℃-288 ℃ |
| paio waika noa | ≤0.5wt% |
| HOOMAEMAE(%) | ≥99.5% |
ʻO Pyromellitic dianhydride (PMDA) kahi mea waiwai nui i ka ʻoihana synthesis organik, a me kahi kumu kumu no ka hoʻomohala ʻana i nā mea kemika hou a me nā huahana kemika maikaʻi i hoʻohui ʻia. Hoʻohana nui ʻia ia no ka hana ʻana i nā monomers polyimide, a hiki ke hoʻohana ʻia ma ke ʻano he Curing agent no ka epoxy resin a me ka cross-linking agent no ka polyester resin, i hoʻohana ʻia i ka hana ʻana o ka phthalocyanine blue dye a me kekahi mau derivatives koʻikoʻi, etc. he laulā o ka hoʻohana. ʻO ka Pyromellitic dianhydride, ka mea i kapa ʻia ʻo homoanhydride, he ʻano molekala kūikawā a hiki ke hoʻohana ʻia e hana i nā mea me ka pale wela, ka uila uila a me ke kūpaʻa kemika, ma waena o ka hoʻohana nui ʻana he monolayer o polyimide. Hoʻohui ʻia me ka diamine aromatic e kiʻi i ka plastic polyimide, akā kiʻekiʻe loa ka maʻemaʻe o ka pyromellitic dianhydride, pono e ʻoi aku ma mua o 99%.
25kgs / pahu, 9tons / 20' pahu
25kgs / eke, 20tons / 20'container
Pyromellitic Dianhydride Me CAS 89-32-7
Pyromellitic Dianhydride Me CAS 89-32-7
