3,3′,4,4′-Biphenyltetracarboxylic dianhydride/BPDA kas:2420-87-3
Dianhydride-keena BPDA waxa ay ku faantaa noocyo kala duwan oo siyaalo gaar ah oo daboolaya baahiyaha kala duwan ee warshado kala duwan.Deganaanshaheeda kulaylka gaarka ah, oo leh barta dhalaalaysa ee ka sarreysa 300°C, waxay hubisaa in lagu kalsoonaan karo codsiyada heerkulka sare.Intaa waxaa dheer, waxay soo bandhigtaa sifooyin koronto oo heer sare ah, taasoo ka dhigaysa doorasho ku habboon in loo isticmaalo qaybaha elektaroonigga ah iyo alaabta dahaadhka.
Xaruntan isku dhafan waxay bixisaa milmi cajiib ah oo ku jira dareerayaasha organic kala duwan, taas oo u oggolaanaysa hababka wax soo saarka dabacsan iyo isdhexgalka fudud ee qaabab kala duwan.Haddi ay ku jirto soo saarista polymers-ga waxqabadka sare leh, isku-dhafka horumarsan, ama dahaarka khaaska ah, BPDA dianhydride-keena waxay u adeegtaa sidii kicinta hal-abuurnimada.
Intaa waxaa dheer, caabbinta kiimikaad ee gaarka ah waxay u saamaxdaa inay u adkaysato jawiga gardarrada, taas oo ka dhigaysa doorasho aad u fiican oo loogu talagalay codsiyada farsamaynta kiimikada, kala-soocidda gaasta, iyo dahaarka u adkaysta.Xooggeeda makaanikada ah ee gaarka ah iyo adkeynteeda waxay sidoo kale gacan ka geysataa guusheeda agabka injineernimada, halkaas oo adkeysiga iyo isku halaynta ay yihiin arrimaha muhiimka ah.
At Wenzhou Blue Dolphin New Material Co.ltd, tayada iyo daahirnimada ayaa ugu muhiimsan.Dianhydride-keena BPDA waxa ay martaa baaritaan adag iyo falanqayn si loo hubiyo in ay la kulanto heerarka warshadaha ugu sarreeya.Kooxdayada xirfadlayaasha khibradda leh waxay u shaqeeyaan si aan kala go 'lahayn si ay u dammaanad qaadaan joogtaynta iyo isku halaynta xaruntan muhiimka ah, taasoo u oggolaanaysa macaamiisheena inay bilaabaan mashruucyadooda iyagoo leh kalsooni buuxda.
Faahfaahin:
| Muuqashada | Wku dhufobudo | U hoggaansamo |
| daahirnimo(%) | ≥99.0 | 99.8 |
| Waayida qalajinta (%) | ≤0.5 | 0.14 |
