Nhamba yeCas: 89-32-7 PMDA Pyromellic dianhydride
Sumo pfupi
Zvigadzirwa zvePyromellitic dianhydride (PMDA) zvakachena, makristaro machena kana kuti makristaro eyero zvishoma. Kana zvasangana nemhepo ine hunyoro, zvinokurumidza kunwa hunyoro hunobva mumhepo zvoita hydrolyze kuita Pyromellitic Acid. Zvinonyungudutswa mu dimethyl sulfoxide, dimethylformamide, acetone nezvimwe zvinonyungudutsa, hazvinyunguduke mu ether, chloroformamide ne benzene. Zvinonyanya kushandiswa sezvinhu zve polyimide, uye crosslinking agent yekugadzira epoxy curing agent uye polyester resin disappear.
Pyromellitic acid (PMA), inozivikanwawo se1,2,4,5-benzenetetracarboxylicacid, kristalo chena kusvika yero yakaita seupfu, inonyanya kushandiswa mukugadzirwa kwepolyimide, octyl pyromelliate, nezvimwewo, ndiyo chinhu chikuru chekugadzira mushonga wekugadzirisa matting.
| CHINHU | PMDA | PMA |
| Kuchena kwehuwandu% | 99.5% | 99% |
| Acetone yasara PPM | 1500 | / |
| Nzvimbo yekunyunguduka | 284~288 | / |
| Ruvara | Chena kusvika yero | Chena |
| Asidhi yemahara% | 0.5 | / |
| Saizi yezvimedu | Kana vatengi vachida | Kana vatengi vachida |
Ndapota taurai nesu kuti muwane COA neMSDS. Maita basa.
