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

I-CAS:89-32-7

MF:C10H2O6

MW:218.12

Inombolo ye-EINECS:201-898-9

Izithethantonye: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-Benzenetetracrboxylicdianhydride; i-pyromelliticacidanhydride; i-pyromelliticaciddianhydride; I-Pyromelliticanhydride; 1,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE

Shiya uMyalezo Wakho

Iinkcukacha zeMveliso

Khuphela

Iithegi zeMveliso

Yintoni iPyromellitic Dianhydride ngeCAS 89-32-7?

I-pyromellitic dianhydride (efinyeziweyo njenge-PMDA), esetyenziselwa ukuhlanganiswa kwe-polyimide, kuba i-polyimide inokumelana nobushushu obuphezulu kakhulu, i-asidi kunye nokumelana ne-alkali, igqwesileyo Ngenxa yeempawu zayo zomatshini, iipropati zombane kunye nokuzinza kwe-dimensional, isetyenziswa ngokubanzi kwiinkalo zobuchwepheshe obuphezulu ezifana ne-aviation, i-aerospace kunye ne-aerospace.

Inkcazo

Into	Umgangatho
Imbonakalo	Iikristale ezimhlophe
Mindawo yokunyuka	286℃-288℃
Umbango weasidi wasimahla	≤0.5wt%
UBUNGCULU(%)	≥99.5%

Isicelo

I-Pyromellitic dianhydride (PMDA) yimathiriyeli ekrwada ebalulekileyo kwishishini le-organic synthesis, kunye nesiseko semathiriyeli ekrwada yokuphuhliswa kwezinto ezintsha zeekhemikhali kunye neemveliso zemichiza ezilungileyo ezongeziweyo zexabiso eliphezulu. Isetyenziselwa ikakhulu ukuveliswa kwe-polyimide monomers, kwaye ingasetyenziswa njenge-arhente yokunyanga i-epoxy resin kunye ne-agent edibanisayo yokudibanisa i-polyester resin, esetyenziselwa ukuveliswa kwedayi eluhlaza ye-phthalocyanine kunye nezinye izinto ezibalulekileyo, njl., kwaye inoluhlu olubanzi lokusetyenziswa. I-Pyromellitic dianhydride, eyaziwa ngokuba yi-homoanhydride, inesakhiwo esikhethekileyo se-molecular kwaye ingasetyenziselwa ukuvelisa izinto ezinokumelana nokushisa, ukufakwa kombane kunye nokuchasana kweekhemikhali, phakathi kwayo eyona nto ibaluleke kakhulu isetyenziswa njenge-monolayer ye-polyimide. Idityaniswe ne-diamine enuka kamnandi ukufumana iplastiki ye-polyimide, kodwa ubunyulu be-pyromellitic dianhydride buphezulu kakhulu, obufuna ukuba ngaphezulu kwe-99%.