Cas no:89-32-7 PMDA Pyromellitic dianhydride
He kupu whakataki poto
Pyromellitic dianhydride (PMDA), ko nga hua parakore he ma, he kiripiri kowhai iti ranei.Ka kitea ki te hau makuku ka tere te tango i te makuku mai i te hau, ka whakamarohia ki roto i te Pyromellitic Acid. Ka whakakorehia ki te dimethyl sulfoxide, te dimethylformamide, te acetone me etahi atu whakarewa pararopi, kaore e rewa i roto i te etera, te chloroform me te benzene.Ko te nuinga ka whakamahia hei rauemi mata mo te polyimide, me te kaihoko whakawhiti mo te hanga i te kaihoko rongoa epoxy me te mate polyester resin.
Ko te waikawa Pyromellitic (PMA), e mohiotia ana ko te 1,2,4,5-benzenetetracarboxylicacid, he ma ki te kowhai kirikiri paura kowhai, e whakamahia ana i roto i te whakahiatotanga o te polyimide, octyl pyromelliate, me etahi atu, ko te rauemi matua mo te hanga o te mating agent. .
| ITEM | PMDA | PMA |
| Pure wt% | 99.5% | 99% |
| PPM Acetone toenga | 1500 | / |
| Te rewa | 284~288 | / |
| Tae | Ma ki te kowhai | Mā |
| Waikawa Kore wt% | 0.5 | / |
| Te rahi o te matūriki | I runga i te tono a nga kaihoko | I runga i te tono a nga kaihoko |
Pls whakapā mai ki te tiki COA me MSDS.Mihi.
