BPADA CAS 38103-06-9

CAS:38103-06-9

Ubwiza:≥98%

Formula ya Molecular:C31H20O8

EINECS:253-781-7

Imvugo ngereranyo:4,4'-(4,4'-Isopropylidenediphenoxy) bis (anhydride ya phtalike)、2,2-Bis (4-(3,4-dicarboxyphenoxy) phenyl) propanedianhydride、BPADA、Bisphenol A dianhydride、4,4'-BISPHENOL A DIANHYDRIDE、5,5'-((1-methylethylidene) bis (4,1-phenyleneoxy)) bis-3-isobenzofurandione

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BPADA CAS 38103-06-9 ni iki?

4,4'-(4,4'-ISOPROPYLIDENEDIPHENOXY)BIS (PHTHALIC ANHYDRIDE) (BPADA) ni monomer ya polyetherimide yateguwe kandi ikaba n'ubwoko bwa polyimide ishaje. 4,4'-(4,4'-ISOPROPYLIDENEDIPHENOXY)BIS (PHTHALIC ANHYDRIDE) ntabwo igumana gusa imiterere myiza ya polyimide ahubwo inagira imikorere myiza nk'iya pulasitiki rusange. Byongeye kandi, 4,4'-(4,4'-ISOPROPYLIDENEDIPHENOXY)BIS (PHTHALIC ANHYDRIDE) ni igiciro gito kandi kibereye gutegura ibintu bifite inkuta nto n'ibicuruzwa bigoye mu miterere.

Ibisobanuro

IGITEKEREZO	IBYIHARIYE
Isura	Ifu y'umweru
Ibikubiye muri iyi nkuru % ≥	≥98%
Aho gushonga	188.0 - 192.0℃
Ubucucike	1.406g/cm³

Porogaramu

1. Guhuza ibikoresho bya polyimide (PI) bifite akamaro kanini kandi bitanga umusaruro mwinshi

Iyi ni yo mikoreshereze isanzwe kandi y'ingenzi ya BPADA. BPADA igizwe na polycondensation hamwe na monomers zisanzwe za diamine nka 4,4' -diaminodiphenyl ether (ODA) kugira ngo ikore polyimide ihuza "ubushyuhe n'uburyo bworoshye bwo kuyitunganya". Ubwo bwoko bw'ibikoresho bya PI, bitewe n'uko hari imigozi ya ether n'amatsinda ya isopropyl mu miterere yayo ya molekile, igumana ubushyuhe bwinshi bwa PI (ubushyuhe bw'igihe kirekire bwa 180-220℃). BPADA nayo yoroshye kuyikoramo filime, amasahani, nibindi kurusha PI isanzwe, kandi ikunze gukoreshwa muri:

1) Ibice by'ibanze bikingira ubushyuhe mu rwego rw'ibikoresho by'ikoranabuhanga: Filimi y'ibanze n'ifishi yo gupfuka yo gukora imbuga zanditseho (FPC), hamwe na verini y'impapuro/ivanga ikingira ubushyuhe bwinshi kuri moteri na transformateur, kugira ngo ihuze n'ibisabwa mu "miniaturization + ubushyuhe" by'ibice by'ikoranabuhanga, nko kurinda ubushyuhe bw'imbere mu bikoresho by'ikoranabuhanga n'ibinyabiziga by'inganda.

2) Ibice rusange birwanya ubushyuhe bwinshi mu nganda: Bikozwe mu mapine ya PI n'imiyoboro, bikoreshwa mu gushyiramo uduce duhangana n'ubushyuhe bwinshi hafi ya moteri z'imodoka n'ibice by'ibikoresho byo mu rugo birwanya ubushyuhe imbere (nk'amatanura na mikoroonde). Bishobora kwihanganira ubushyuhe buri hejuru ya 150°C igihe kirekire, kandi birwanya gusaza no kwangirika.

2. Hindura resins zisanzwe kugira ngo wongere imikorere

Mu guhindura resin isanzwe, BPADA, nk'"monomer ikomeza ubushyuhe", ikunze gukoreshwa mu kunoza imikorere ya resin epoxy na resin za phenolic no kwagura uburyo zikoreshwa:

1) Guhindura resin ya epoxy: Iyo ivanze na resin isanzwe ya epoxy, BPADA yongera ubushyuhe bwinshi bwa resin (yongera ubushyuhe bw'igihe kirekire bwa resin yavuwe kuva kuri 120℃ ikagera kuri 180℃), kandi ikoreshwa mu guhuza imirasire y'ingenzi y'ibyuma bya turbine y'umuyaga no nk'igitambaro gikingira insinga zifite amashanyarazi menshi, ihura n'ibisabwa mu gihe kirekire mu bidukikije byo hanze cyangwa mu nganda.

2) Ibikoresho by'ibanze byo gusiga/gufata ibintu birwanya ubushyuhe bwinshi: Nk'igice gihuza ibikoresho byo gusiga n'ibifata ibintu bivanze, BPADA ivangwa na resine za phenolic na resine za silikoni kugira ngo ikore ibikoresho birwanya ubushyuhe bwinshi byo mu nganda (nk'ibirinda ingese n'ibirinda ubushyuhe byo mu nkuta z'imbere z'amabati n'imiyoboro), hamwe n'ibifata ibintu birwanya ubushyuhe bwinshi bivura ubushyuhe bw'icyumba ku byuma na za ceramic. Ibi bikunze gukoreshwa mu kurinda no gufatanya ibikoresho bya mekanike na shimi.