Pyromeltic Dianhydride na CAS 89-32-7
Pyromellic dianhydride (nke a kpọrọ PMDA), nke a na-ejikarị eme ihe maka njikọta nke polyimide, n'ihi na polyimide nwere ezigbo iguzogide okpomọkụ dị elu, iguzogide acid na alkali, ọ dị mma nke ukwuu N'ihi ihe ndị dị na ya, ihe ndị dị na eletriki na nkwụsi ike nha, a na-ejikarị ya eme ihe n'ọhịa teknụzụ dị elu dịka ụgbọelu, ụgbọelu, microelectronics na ike atọm, nke nwere ihe achọrọ siri ike na ihe ndị dị na ya.
| ihe | Ọkọlọtọ |
| Ọdịdị | Kristal ọcha |
| Misi ihe e ji elting mee | 286℃-288℃ |
| Ọgụ megide free acid | ≤0.5wt% |
| ỊDỊ ỌCHA(%) | ≥99.5% |
Pyromellitic dianhydride (PMDA) bụ ihe dị mkpa n'ime ụlọ ọrụ mmepụta ihe ndị sitere n'okike, yana ihe ndị bụ isi maka mmepe nke ihe kemịkalụ ọhụrụ na ngwaahịa kemịkalụ dị mma agbakwunyere nke bara uru. A na-ejikarị ya eme ihe maka mmepụta nke monomers polyimide, a pụkwara iji ya dị ka ihe na-agwọ ọrịa maka resin epoxy na ihe na-ejikọ ọnụ maka resin polyester, nke a na-eji eme ihe na mmepụta nke agba phthalocyanine acha anụnụ anụnụ na ụfọdụ ihe ndị dị mkpa, wdg, ma nwee ọtụtụ ojiji. Pyromellitic dianhydride, nke a makwaara dị ka homoanhydride, nwere nhazi molekul pụrụ iche ma enwere ike iji ya rụpụta ihe ndị nwere iguzogide okpomọkụ, mkpuchi eletriki na iguzogide kemịkalụ, nke ojiji kachasị mkpa bụ dị ka monolayer nke polyimide. A na-eji diamine aromatic emepụta ya iji nweta plastik polyimide, mana ịdị ọcha nke pyromellitic dianhydride dị oke elu, nke kwesịrị ịdị karịa 99%.
25kg kwa drum, 9tons/20'container
25kgs/akpa, 20tons/20'akpa
Pyromeltic Dianhydride na CAS 89-32-7
Pyromeltic Dianhydride na CAS 89-32-7
