I-Pyromellitic Dianhydride ene-CAS 89-32-7

I-CAS:89-32-7

I-MF:C10H2O6

I-MW:218.12

Inombolo ye-EINECS:201-898-9

Amagama afanayo:1,2,4,5-Benzenetetracarboxylic1,2:4,5-dianhydride; 1,2,4,5benzenetetracarboxylic1,2:4,5dianhydride; 1,2,4,5-benzenetetracarboxylic1,2:4,5-dianhydride; 1,2,4,5-Benzenetetracarboxylic1,2:4,5-dianhydride; 1,2,4,5-Benzenetetracrboxylicdianhydride; pyromelliticacidanhydride; pyromelliticaciddianhydride; Pyromelliticanhydride; 1,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Amathegi Omkhiqizo

Iyini i-Pyromellitic Dianhydride ene-CAS 89-32-7?

I-pyromellitic dianhydride (efushaniswe ngokuthi i-PMDA), esetshenziswa kakhulu ekuhlanganiseni i-polyimide, ngoba i-polyimide inokumelana okuhle kakhulu nokushisa okuphezulu, ukumelana ne-asidi kanye ne-alkali, okuhle kakhulu Ngenxa yezakhiwo zayo zemishini, izakhiwo zikagesi kanye nokuqina kobukhulu, isetshenziswa kabanzi emikhakheni yobuchwepheshe obuphezulu njengezindiza, izindiza, ama-microelectronics kanye namandla e-athomu, anezidingo eziqinile ezakhiweni zezinto ezibonakalayo.

Imininingwane

Into	Okujwayelekile
Ukubukeka	Amakristalu amhlophe
Miphuzu lokunciphisa	286℃ -288℃
Ukuncintisana kwe-asidi yamahhala	≤0.5wt%
UBUHLANZEKO(%)	≥99.5%

Isicelo

I-Pyromellitic dianhydride (PMDA) iyinto ebalulekile embonini yokwenziwa kwezinto eziphilayo, kanye nezinto eziyisisekelo zokusetshenziswa zokuthuthukiswa kwezinto ezintsha zamakhemikhali kanye nemikhiqizo yamakhemikhali amahle anenani eliphezulu. Isetshenziswa kakhulu ekukhiqizweni kwama-monomers e-polyimide, futhi ingasetshenziswa njenge-ejenti yokwelapha ye-epoxy resin kanye ne-ejenti yokuxhumanisa i-polyester resin, esetshenziswa ekwenziweni kwedayi eluhlaza okwesibhakabhaka ye-phthalocyanine kanye nezinye izinto ezibalulekile, njll., futhi inokusetshenziswa okubanzi. I-Pyromellitic dianhydride, eyaziwa nangokuthi i-homoanhydride, inesakhiwo esikhethekile sama-molecule futhi ingasetshenziswa ukukhiqiza izinto ezinokumelana nokushisa, ukufudumala kukagesi kanye nokumelana namakhemikhali, phakathi kwazo ukusetshenziswa okubaluleke kakhulu njenge-monolayer ye-polyimide. Yenziwe nge-aromatic diamine ukuthola ipulasitiki ye-polyimide, kodwa ubumsulwa be-pyromellitic dianhydride buphezulu kakhulu, okudingeka bube ngaphezu kwama-99%.