Nama cas: 89-32-7 PMDA Pyromellitic dianhydride
He kupu whakataki poto
Ko te Pyromellitic dianhydride (PMDA), he mā, he kōwhai paku rānei ngā hua parakore. Ka tere te mimiti o te makuku mai i te hau ina pāngia e te hau makuku, ā, ka waikuratia hei Waikawa Pyromellitic. Ka rewa ki roto i te dimethyl sulfoxide, te dimethylformamide, te acetone me ētahi atu whakarewa waro, kāore e rewa ki roto i te ether, te chloroform me te benzene. Ka whakamahia whānuitia hei rauemi mata mō te polyimide, me te kaihoko honohono mō te hanga kaihoko whakamaroke epoxy me te whakakorenga o te kapia polyester.
Ko te waikawa Pyromellitic (PMA), e mōhiotia ana ko te waikawa 1,2,4,5-benzenetetracarboxylic, he tioata paura mā ki te kōwhai, e whakamahia nuitia ana i roto i te hanganga o te polyimide, octyl pyromelliate, me ētahi atu, koinei te rauemi matua mō te hanga i te kaihoko whakamaroke whāriki.
| TAONGA | PMDA | PMA |
| Te parakore% taumaha | 99.5% | 99% |
| PPM Acetone Toenga | 1500 | / |
| Te pūwāhi rewa | 284~288 | / |
| Tae | Mā ki te kōwhai | Mā |
| Waikawa Koreutu wt% | 0.5 | / |
| Rahi o te matūriki | I runga i te tono a te kiritaki | I runga i te tono a te kiritaki |
Tēnā whakapā mai ki a mātou kia whiwhi ai i te COA me te MSDS. Ngā mihi.
