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

CAS:2420-87-3

Formula ya Molecular:C16H6O6

Uburemere bwa molekile:294.22

EINECS:219-342-9

Amagambo asa:3,3', 4,4'-Biphenyltetracarboxylic dianhydride 97%; 4,4'-Biphthalic Anhydride (isukurwa hakoreshejwe sublimation); 3,3'4,4'-Biphenyl tetracarboxylic aside 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

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Ibisobanuro birambuye ku gicuruzwa

Kuramo

Ibirango by'ibicuruzwa

3,3',4,4'-Biphenyltetracarboxylic dianhydride CAS 2420-87-3 ni iki?

3,3 ', 4,4' - Biphenyltetracarboxylic dianhydride ni ibikoresho by'ingenzi bya polyimide monomer bifite akamaro kanini mu gukora ibikoresho bya polyimide birwanya ubushyuhe bwinshi. Bikoreshwa mu gukora ibicuruzwa bya polyimide n'ibikoresho byabyo bivanze, ibikoresho bihuza imiti.

CAS 2420-87-3 ya 3,3', 4,4'-Biphenyltetracarboxylic dianhydride ni imiterere yihariye n'umusemburo mwiza cyane wa dianhydride, kandi ni na monomer y'ingenzi mu gukora ibikoresho bya polymeri bikora neza. Ifite umwanya udasimburwa mu bintu nk'iby'ikirere, amakuru y'ikoranabuhanga, n'ibikoresho byo mu rwego rwo hejuru.

Ibisobanuro

Ikintu	Ibisobanuro
Aho kubira	614.9±48.0 °C (Byateganijwe)
Ubucucike	1.625±0.06 g/cm3 (Byateganijwe)
Aho gushonga	299-305 °C (izuba)
λmax	300nm (urumuri)
Ubwiza	99%
Uburyo bwo kubika	Ikirere kidahumeka, Ubushyuhe bw'icyumba

Porogaramu

Dianhydride ya 3,3', 4,4'-Biphenyltetracarboxylic (CAS 2420-87-3, mu magambo ahinnye nka BPDA) ni monomer y'ingenzi yo gukora ibikoresho bya polymeri bifite imikorere myiza, kandi ikoreshwa ryayo ryibanda cyane ku bikoresho byo mu rwego rwo hejuru.

1. 3,3', 4,4'-Biphenyltetracarboxylic dianhydride ikoreshwa nk'ibice by'imiterere birwanya ubushyuhe bwinshi ku byogajuru (nk'ibice byo mu gace k'ibice bya satelite) n'ibice bikingira ubushyuhe ku bice bya moteri; Igice cy'antene cyoroshye cy'ibikoresho hamwe n'urwego rwo kwirinda ubushyuhe bwinshi rw'insinga.

2. BPDA ishobora gukoreshwa mu miyoboro ihuriweho (ics): gutegura filime zirinda ubushyuhe hagati y’ibice, kugabanya ubushyuhe buterwa no gushyushya ibice, no kongera ubudahangarwa bw’ibice. Ikorwamo ibikoresho bya PI (nk'ibice byuzuye bya karubone na grafiti), bikoreshwa mu byuma bifunga ibintu mu gihe cy'ubushyuhe bwinshi (nk'ibice bifunga moteri z'imodoka n'ibikoresho bya chimique), gusimbuza ibikoresho by'icyuma kugira ngo bigabanye kwangirika no kwangirika.

3. Uretse polyimide, BPDA ishobora kandi gukorana na monomer zitandukanye kugira ngo ikore ibindi bikoresho bya polymer bikora neza, bikongera imbibi z'ikoreshwa ryayo.

Polyamideimide ikoze mu buryo bwa sintetike (PAI): BPDA ikorana na diisocyanate kugira ngo ikore PAI. Ubu bwoko bw'ibikoresho buhuza ubushyuhe bwinshi bwa PI n'ubudahangarwa bwa polyamide, kandi bushobora gukoreshwa mu gutegura ibice bya pulasitiki byo mu rwego rwo hejuru.

Polyetherimide y’ubukorikori (PEI): Ikorana na diamine irimo imigozi ya ether kugira ngo ikore PEI. Uburyo bwo kuyitunganya buruta ubw’uburyo isanzwe ya PI. Ishobora gukorwamo ibikoresho by’ikoranabuhanga n’ibihuza birwanya ubushyuhe bwinshi binyuze mu gushushanya inshinge, bitewe n’imbaraga n’uburyo bworoshye kuyitunganya.

4. Amatsinda ya anhydride ari muri molekyuli ya BPDA ashobora kugira ingaruka zo gufungura uruziga hamwe n'amatsinda ya epoxy ya epoxy resin kandi agakoreshwa nk'ibintu bivura birwanya ubushyuhe bwinshi:

Anhydride ya Biphthalic 2420-87-3 ikoreshwa cyane cyane mu gutegura "ibikoresho bya epoxy birwanya ubushyuhe bwinshi", nko gukamura imizi y'ibyuma bya turbine y'umuyaga (bigomba kwihanganira gusaza kw'ubushyuhe bwinshi hanze igihe kirekire) no gukamura substrates za epoxy ku mbaho za circuit zo mu rwego rwo hejuru, kugira ngo hongerwe ubushyuhe buhamye (Tg y'ibikoresho byakamurwa ishobora kongerwaho ubushyuhe burenze 180℃) n'imbaraga za epoxy mu buryo bwa mekanike.