Pyromellitic Dianhydride Faatasi ai ma CAS 89-32-7

CAS:89-32-7

MF:C10H2O6

MW:218.12

EINECS Numera:201-898-9

upu uiga tutusa: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; pyromelliticacidanhydride; pyromelliticaciddianhydride; Pyromelliticanhydride; 1,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE

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O le a le Pyromellitic Dianhydride ma le CAS 89-32-7?

O le pyromellitic dianhydride (faapuupuuina e pei o le PMDA), lea e masani ona faaaoga mo le tuufaatasia o polyimide, ona o le polyimide e sili ona maualuga ultra-maualuga vevela tetee, acid ma alkali tetee, lelei Ona o lona masini, meatotino eletise ma tulaga mautu, e masani ona faaaogaina i fanua maualuga-tekonolosi e pei o vaalele, aerospace, microelectronics ma malosiaga atomic, lea ei ai meatotino.

Fa'amatalaga

Aitema	Tulaga
Fa'aaliga	tioata paepae
Mtulaga maualuga	286℃-288℃
Fa'asagaga ole ga'o fua	≤0.5wt%
MAMA(%)	≥99.5%

Fa'aaogāga

Pyromellitic dianhydride (PMDA) ose mea mata'utia taua i le alamanuia synthesis organic, fa'apea fo'i ma mea fa'avae mo le atina'eina o mea fou vaila'au ma mea tau vaila'au fa'aopoopo maualuga. E masani ona faʻaaogaina mo le gaosiga o polyimide monomers, ma e mafai foʻi ona faʻaaogaina e fai ma sui Curing mo epoxy resin ma sui fesoʻotaʻiga mo polyester resin, faʻaaogaina i le gaosiga o le lanu lanumoana phthalocyanine ma nisi o mea taua, ma isi mea, ma e tele faʻaoga. Pyromellitic dianhydride, lea e lauiloa foi o le homoanhydride, ei ai se fausaga mole mole faapitoa ma e mafai ona faʻaaogaina e gaosia ai mea e faʻafefe ai le vevela, faʻafefe eletise ma vailaʻau faʻamalosi, lea e sili ona taua le faʻaaogaina o se monolayer o polyimide. E faʻapipiʻiina i le diamine manogi e maua ai le polyimide plastic, ae o le mama o le pyromellitic dianhydride e maualuga tele, lea e manaʻomia e sili atu i le 99%.