Dianhydride ea Pyromellitic e nang le CAS 89-32-7

CAS:89-32-7

MF:C10H2O6

MW:218.12

Nomoro ea EINECS:201-898-9

Mantsoe a tšoanang: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

Siea Molaetsa oa Hao

Qaqiso ea Sehlahisoa

Khoasolla

Li-tag tsa Sehlahisoa

Pyromellitic Dianhydride ke eng ka CAS 89-32-7?

Dianhydride ea pyromellitic (e khutsufalitsoeng e le PMDA), e sebelisoang haholo bakeng sa ho kopanya polyimide, hobane polyimide e na le khanyetso e ntle ea mocheso o phahameng haholo, khanyetso ea asiti le alkali, e ntle haholo Ka lebaka la thepa ea eona ea mechini, thepa ea motlakase le botsitso ba litekanyo, e sebelisoa haholo masimong a theknoloji e phahameng joalo ka lifofane, lifofane, li-microelectronics le matla a athomo, a nang le litlhoko tse thata mabapi le thepa ea thepa.

Tlhaloso

Ntho	E tloaelehileng
Ponahalo	Likristale tse tšoeu
Mntlha ea ho hloa	286℃ -288℃
Phehisano ea asiti e lokolohileng	≤0.5wt%
BOHLOEKI(%)	≥99.5%

Kopo

Pyromellitic dianhydride (PMDA) ke thepa ea bohlokoa indastering ea tlhahiso ea lintho tse phelang, hammoho le thepa ea motheo bakeng sa nts'etsopele ea lisebelisoa tse ncha tsa lik'hemik'hale le lihlahisoa tsa lik'hemik'hale tse ntle tse nang le boleng bo holimo. E sebelisoa haholo bakeng sa tlhahiso ea li-monomers tsa polyimide, 'me e ka boela ea sebelisoa e le moemeli oa ho folisa bakeng sa resin ea epoxy le moemeli oa ho hokahanya bakeng sa resin ea polyester, e sebelisoang tlhahisong ea dae e putsoa ea phthalocyanine le lintho tse ling tsa bohlokoa tse tsoang ho eona, jj., 'me e na le mefuta e mengata ea ts'ebeliso. Pyromellitic dianhydride, e tsejoang hape e le homoanhydride, e na le sebopeho se ikhethang sa limolek'hule 'me e ka sebelisoa ho etsa lisebelisoa tse hanyetsang mocheso, ho thibela motlakase le ho hanyetsa lik'hemik'hale, tseo har'a tsona tšebeliso ea bohlokoa ka ho fetisisa e leng monolayer ea polyimide. E kopantsoe le aromatic diamine ho fumana polasetiki ea polyimide, empa bohloeki ba pyromellitic dianhydride bo holimo haholo, bo hlokang ho feta 99%.