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

CAS:2420-87-3

Usoro Molekụla:C16H6O6

Ibu Molekụla:294.22

EINECS:219-342-9

Okwu ndị yiri ya:3,3',4,4'-Biphenyltetracarboxylic dianhydride 97%; 4,4'-Biphthalic Anhydride (a na-asacha ya site na 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

Hapụ Ozi Gị

Nkọwa Ngwaahịa

Budata

Akara Ngwaahịa

Kedu ihe bụ 3,3',4,4'-Biphenyltetracarboxylic dianhydride CAS 2420-87-3?

3,3 ', 4,4' - Biphenyltetracarboxylic dianhydride bụ ihe dị mkpa nke polyimide monomer nke nwere ọtụtụ ihe eji eme ihe n'ime mmepụta nke ihe polyimide na-eguzogide okpomọkụ dị elu. A na-eji ya eme ihe maka mmepụta nke ngwaahịa polyimide na ihe ndị mejupụtara ha, ihe ndị na-eme ka ọgwụ dị n'etiti.

CAS 2420-87-3 nke 3,3',4,4'-Biphenyltetracarboxylic dianhydride bụ ihe owuwu pụrụ iche na ihe mejupụtara dianhydride aromatic arụmọrụ dị mma, ọ bụkwa monomer bụ isi maka njikọta nke ihe polymer arụmọrụ dị elu. O nwere ọnọdụ ngwa a na-apụghị ịgbanwe agbanwe na mpaghara dịka ikuku, ozi eletrọnịkị, na akụrụngwa dị elu.

Nkọwapụta

ihe	Nkọwapụta
Ebe isi mmiri	614.9±48.0°C (Amụma)
Njupụta	1.625±0.06 g/cm3 (Amụma)
Ebe agbaze	299-305 °C (ọkụ)
λmax	300nm (ọkụ)
Ịdị ọcha	99%
Ọnọdụ nchekwa	Ikuku na-adịghị agba ọsọ, Okpomọkụ Ụlọ

Ngwa

3,3',4,4'-Biphenyltetracarboxylic dianhydride (CAS 2420-87-3, nke a kpọrọ BDDA) bụ isi monomer maka imepụta ihe polymer dị elu, a na-ejikwa ya nke ọma n'ọhịa ihe ndị dị elu.

1. A na-eji 3,3',4,4'-Biphenyltetracarboxylic dianhydride dị ka ihe owuwu na-eguzogide okpomọkụ dị elu maka ụgbọ elu ụgbọelu (dịka ihe ndị dị na mpaghara nke ihe mkpuchi satịlaịtị) na mkpuchi mkpuchi maka ngalaba injin; Ihe na-agbanwe agbanwe nke antenna nke akụrụngwa na oyi akwa mkpuchi eriri na-eguzogide okpomọkụ dị elu.

2. Enwere ike iji BPDA mee ihe na sekit ndị a na-ejikọta ọnụ (ics): iji kwadebe ihe nkiri mkpuchi oyi akwa, belata mgbanwe nha nke okpomọkụ chip kpatara, ma mee ka nkwụsi ike chip dịkwuo mma. A na-eme ya ka ọ bụrụ ihe mejupụtara PI (dịka eriri carbon na graphite jupụtara), nke a na-eji na bearings na seals n'okpuru ọnọdụ ọrụ dị elu (dịka ihe mkpuchi nke injin ụgbọala na akụrụngwa kemịkalụ), na-anọchi ihe ígwè iji belata iyi na ire ere.

3. E wezụga polyimide, BDDA nwekwara ike imeghachi omume na monomers dị iche iche iji mepụta ihe ndị ọzọ na-arụ ọrụ nke ọma, na-agbasa ókèala ngwa ya.

Polyamideimide Sịntetik (PAI): BDA na-emeghachi omume na diisocyanate iji mepụta PAI. Ụdị ihe a na-ejikọta iguzogide okpomọkụ dị elu nke PI na iguzogide mmetụta nke polyamide, a pụkwara iji ya kwadebe akụkụ plastik injinia dị elu.

Polyetherimide sịntetik (PEI): Ọ na-emeghachi omume na diamines nwere njikọ ether iji mepụta PEI. Ike nhazi ya karịrị nke PI ọdịnala. Enwere ike ime ya ka ọ bụrụ shei nke ngwaọrụ eletrọnịkị na njikọ ndị na-eguzogide okpomọkụ dị elu site na ịkpụzi ntụtụ, na-eburu n'uche ma ike na mfe nhazi.

4. Otu anhydride dị na molekul BDA nwere ike ịgafe mmeghachi omume mmeghe mgbanaka na otu epoxy nke epoxy resin ma jiri ya dị ka ihe na-agwọ ọrịa na-eguzogide okpomọkụ dị elu:

A na-ejikarị 4,4'-Biphthalic Anhydride 2420-87-3 eme ihe maka ịkwadebe "ihe mejupụtara epoxy na-eguzogide okpomọkụ dị elu", dịka mgbọrọgwụ nke agụba turbine ikuku (nke kwesịrị iguzogide ịka nká dị elu n'èzí ogologo oge) na ịgwọ ihe ndị dị na epoxy maka bọọdụ sekit dị elu, iji mee ka nkwụsi ike okpomọkụ dịkwuo elu (enwere ike ịbawanye Tg nke ihe a gwọrọ ruo ihe karịrị 180℃) na ike igwe nke ihe epoxy.