Pyromellitic Dianhydride Yokhala ndi CAS 89-32-7
Pyromellitic dianhydride (yofupikitsidwa ngati PMDA), yomwe imagwiritsidwa ntchito makamaka popanga polyimide, chifukwa polyimide ili ndi kukana kutentha kwambiri, kukana asidi ndi alkali, yabwino kwambiri Chifukwa cha mphamvu zake zamakaniko, mphamvu zamagetsi komanso kukhazikika kwa magawo, imagwiritsidwa ntchito kwambiri m'magawo apamwamba monga ndege, ndege, ma microelectronics ndi mphamvu ya atomiki, zomwe zimakhala ndi zofunikira kwambiri pazinthu zakuthupi.
| Chinthu | Muyezo |
| Maonekedwe | Makristalo oyera |
| Mmalo otsetsereka | 286℃ -288℃ |
| Mpikisano wa asidi waulere | ≤0.5wt% |
| CHIYERO(%) | ≥99.5% |
Pyromellitic dianhydride (PMDA) ndi chinthu chofunikira kwambiri pakupanga zinthu zachilengedwe, komanso chinthu chofunikira kwambiri popanga zinthu zatsopano zamakemikolo ndi zinthu zabwino kwambiri. Chimagwiritsidwa ntchito kwambiri popanga ma polyimide monomers, ndipo chingagwiritsidwenso ntchito ngati chothandizira kuchiritsa ma epoxy resin ndi chothandizira kulumikiza ma polyester resin, chomwe chimagwiritsidwa ntchito popanga utoto wabuluu wa phthalocyanine ndi zinthu zina zofunika, ndi zina zotero, ndipo chimagwiritsidwa ntchito m'njira zosiyanasiyana. Pyromellitic dianhydride, yomwe imadziwikanso kuti homoanhydride, ili ndi kapangidwe kapadera ka mamolekyulu ndipo ingagwiritsidwe ntchito kupanga zinthu zomwe zimakana kutentha, kutchinjiriza magetsi komanso kukana mankhwala, zomwe zimagwiritsidwa ntchito kwambiri ngati polyimide monolayer. Imapangidwa ndi aromatic diamine kuti ipange polyimide plastic, koma kuyera kwa pyromellitic dianhydride ndi kwakukulu kwambiri, komwe kuyenera kukhala kopitilira 99%.
25kgs/ng'oma, matani 9/chidebe cha 20'
25kgs/thumba, matani 20/chidebe cha 20'
Pyromellitic Dianhydride Yokhala ndi CAS 89-32-7
Pyromellitic Dianhydride Yokhala ndi CAS 89-32-7
