CAT HAPANA: 89-32-7 PMDDA Pyromellitic dianhydride
Nhungamiro pfupi
Pyromellitic dianhydride (PMDA), zvigadzirwa zvakachena zvine machena olslightly makristasi. Kuonekera mumhepo inonyungudutswa nekukurumidza kubva kumhepo uye hydrollyzed muPyromellitic acidscitide, dimethylunds Inonyanya kushandiswa seyakagadzirwa zvinyorwa zvePolyimide, uyecrosslinking mumiririri wekugadzira epoxy kuronga mumiririri uye iyo polyester resin kutsakatika kutsakatika.
Pyromellitic acid (PMA), zvakare anozivikanwa se1,2,5-benynthesis yePollimide, Ectyl pyromelliate, etc., ndiyo huru remberi yekugadzirwa kwekugadzira matting kurapa mumiririri .
| Chinhu | PMDA | PMA |
| Kuchena wt% | 99,5% | 99% |
| Residial Acetone PPM | 1500 | / |
| Inonyungudika | 284 ~ 288 | / |
| Ruvara | Chena kune yero | Chena |
| Mahara Acid wt% | 0.5 | / |
| Size | Pane zvevatengi zvinodiwa | Pane zvevatengi zvinodiwa |
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