3,3′,4,4′-Biphenyltetracarboxylic dianhydride CAS 2420-87-3

CAS:2420-87-3

Qaacidda Molekuleeri:C16H6O6

Miisaanka Molekule:294.22

EINECS:219-342-9

Isku-mid ah:3,3',4,4'-Biphenyltetracarboxylic dianhydride 97%; 4,4'-Biphthalic Anhydride (lagu nadiifiyay sublimation); 3,3'4,4'-Biphenyl tetracarboxylic acid dianhydride(s-BPDA); S-BDPA; S-BPDA; [5,5'-biisobenzofuran]-1,1',3,3'-tetrone; [5,5'-Biisobenzofuran]-1,1',3,3'-tetrone; 5,5'-Biisobenzofuran-1,1',3,3'-tetrone

Farriintaada ka tag

Faahfaahinta Badeecada

Soo dejiso

Calaamadaha Alaabta

Waa maxay 3,3',4,4'-Biphenyltetracarboxylic dianhydride CAS 2420-87-3?

3,3 ', 4,4' - Biphenyltetracarboxylic dianhydride waa walax muhiim ah oo polyimide monomer ah oo leh codsiyo ballaaran oo ku saabsan soo saarista walxaha polyimide ee u adkaysta heerkulka sare. Waxaa loo isticmaalaa soo saarista alaabada polyimide iyo agabkooda isku dhafan, dhexdhexaadiyeyaasha daawada.

CAS 2420-87-3 ee 3,3',4,4'-Biphenyltetracarboxylic dianhydride waa qaab-dhismeed gaar ah iyo isku-darka dianhydride aromatic-ka ee waxqabadka sare leh, waana monomer asaasi ah oo loogu talagalay isku-darka walxaha polymer-ka ee waxqabadka sare leh. Waxay leedahay boos codsi oo aan la beddeli karin oo ku yaal meelaha sida hawada sare, macluumaadka elektaroonigga ah, iyo qalabka heerka sare ah.

Faahfaahinta

Shay	Faahfaahinta
Barta karkarinta	614.9±48.0 °C (Saadaasha)
Cufnaanta	1.625±0.06 g/cm3 (Saadaasha)
Barta dhalaalaysa	299-305 °C (iftiin)
λmax	300nm (iftiin)
Daahirnimo	99%
Xaaladaha kaydinta	Jawi aan firfircoonayn, Heerkulka Qolka

Codsiga

3,3',4,4'-Biphenyltetracarboxylic dianhydride (CAS 2420-87-3, oo loo soo gaabiyo BDDA) waa monomer asaasi ah oo loogu talagalay soo saarista walxaha polymer-ka ee waxqabadka sare leh, codsigeeduna wuxuu si aad ah diiradda u saarayaa goobta agabka heerka sare ah.

1. 3,3',4,4'-Biphenyltetracarboxylic dianhydride waxaa loo isticmaalaa qaybo qaab-dhismeed oo u adkaysta heerkulka sare ee dayax-gacmeedka (sida qaybaha maxalliga ah ee saqafka dayax-gacmeedka) iyo dahaarka dahaarka ee qaybaha matoorka; Substrate-ka anteenada dabacsan ee qalabka iyo lakabka dahaarka fiilada ee u adkaysta heerkulka sare.

2.BPDA waxaa loo isticmaali karaa wareegyada isku dhafan (ics): si loo diyaariyo filimada dahaarka lakabka, loo yareeyo isbeddelka cabbirka ee ay keento kuleylinta jajabka, iyo in la xoojiyo xasilloonida jajabka. Waxaa loo sameeyaa walxo isku dhafan oo PI ah (sida fiilada kaarboonka iyo garaafitka oo la buuxiyay), kuwaas oo loo isticmaalo biinanka iyo shaabadaha xaaladaha shaqada ee heerkulka sare leh (sida shaabadaha qaybaha matoorada baabuurta iyo qalabka kiimikada), iyadoo la beddelayo agabka birta si loo yareeyo xirashada iyo daxalka.

3. Marka laga reebo polyimide, BDDA waxay sidoo kale la falgeli kartaa monomers kala duwan si ay u sameeyaan walxo kale oo polymer ah oo shaqeynaya, iyadoo ballaarinaysa xuduudaheeda codsi.

Polyamideimide-ka Synthetic-ga (PAI): BDA waxay la falgashaa diisocyanate si ay u samayso PAI. Noocan walxaha ah wuxuu isku daraa iska caabbinta heerkulka sare ee PI iyo iska caabbinta saameynta ee polyamide, waxaana loo isticmaali karaa in lagu diyaariyo qaybaha balaastikada injineernimada ee heerka sare ah.

Polyetherimide-ka Synthetic-ga (PEI): Waxay la falgashaa diamines-ka ka kooban xidhmooyinka ether si ay u sameeyaan PEI. Awooddeeda wax-qabadku way ka sarraysaa tan PI-ga dhaqameed. Waxaa laga samayn karaa qolofka qalabka elektaroonigga ah iyo isku-xidhayaasha u adkaysta heerkulka sare iyada oo loo marayo qaabaynta duritaanka, iyadoo la tixgelinayo xoogga iyo fududaynta wax-qabadka.

4. Kooxaha anhydride ee ku jira molecule-ka BDA waxay mari karaan falgallo furitaanka giraanta ah oo ay la socdaan kooxaha epoxy ee epoxy resin waxaana loo isticmaali karaa sidii wakiilo daaweyn oo u adkaysta heerkulka sare:

4,4'-Biphthalic Anhydride 2420-87-3 waxaa inta badan loo isticmaalaa diyaarinta "qalabka isku-dhafka ah ee epoxy u adkaysta heerkulka sare", sida daaweynta xididka ee daabyada dabaysha (kuwaas oo u baahan inay u adkeystaan gabowga heerkulka sare ee dibadda muddada dheer) iyo daaweynta substrates epoxy ee looxyada wareegga sare, si loo xoojiyo xasilloonida kulaylka (Tg ee walaxda la daaweeyay waxaa la kordhin karaa ilaa in ka badan 180℃) iyo xoogga farsamada ee walxaha epoxy.