Cas no: 89-32-7 PMDA Pyromellitic dianhydride
Folasaga puupuu
Pyromellitic dianhydride (PMDA), o oloa mama e pa'epa'e pe lanu samasama tioata. Faʻaalia i le ea susu o le a vave faʻafefete le susu mai le ea ma faʻafefeteina i le Pyromellitic Acid. Dissolved i le dimethyl sulfoxide, dimethylformamide, acetoneand isi solvents organic, e le mafai ona faʻaaogaina i le eter, chloroformand benzene. E masani ona faʻaaogaina e pei o mea mataʻutia mo polyimide, ma sui faʻafesoʻotaʻi mo le gaosiga o le epoxy curing agent andthe polyester resin extinction.
Pyromellitic acid (PMA), e lauiloa foi o le 1,2,4,5-benzenetetracarboxylcacid, paʻepaʻe i le samasama paʻu tioata, e masani ona faʻaaogaina i le faʻaogaina o le polyimide, octyl pyromelliate, ma isi, o le mea autu autu mo le gaosiga o le faʻamaʻi faʻamaʻi.
| MEA | PMDA | PMA |
| mama wt% | 99.5% | 99% |
| Toega Acetone PPM | 1500 | / |
| Liu liusuavai | 284~288 | / |
| Lanu | Pa'epa'e e samasama | Lanu pa'epa'e |
| Avatu fua wt% | 0.5 | / |
| Lapopo'a o vaega | I luga ole manaoga ole tagata faatau | I luga ole manaoga ole tagata faatau |
Pls faʻafesoʻotaʻi matou e maua COA ma MSDS. Fa'afetai.
