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

Kev Siv

3,3',4,4'-Biphenyltetracarboxylic dianhydride (BPDA)yog ib qho tseem ceeb hauv kev tsim cov organic thiab muaj ntau yam kev siv:

Kev tsim cov polyimide

• Cov yeeb yaj kiab ua tau zoo: Nws tuaj yeem dhau los ntawm kev sib xyaw ua ke nrog cov tshuaj diamine los tsim cov yeeb yaj kiab polyimide. Cov yeeb yaj kiab no muaj kev tiv thaiv kub zoo heev. Txawm tias nyob rau hauv qhov chaw kub siab tshaj 200 ° C, lawv tseem tuaj yeem tswj tau cov khoom siv kho tshuab zoo thiab rwb thaiv hluav taws xob. Yog li ntawd, lawv feem ntau siv rau hauv thaj chaw aerospace rau kev tiv thaiv rwb thaiv tsev ntawm cov cav thiab cov khoom siv hluav taws xob lossis ua cov khoom siv rau cov laug cam luam tawm yooj ywm.
• Cov yas ua vaj tse: Cov yas ua vaj tse polyimide uas tsim los ntawm cov yas no muaj lub zog siab, ruaj khov zoo, thiab kuj tsis yooj yim hnav. Lawv tuaj yeem raug txhaj tshuaj pwm los tsim qee qhov chaw precision nrog cov kev cai nruj rau cov khoom siv kho tshuab, xws li cov brackets me me nyob ib puag ncig lub cav dav hlau thiab cov khoom sib kis hauv cov moos kho tshuab siab.
• Kev Txheej Txheem: Cov txheej txheem polyimide uas tsim los ntawm BPDA muaj kev tiv thaiv kev xeb tshuaj zoo heev. Thaum siv rau sab hauv phab ntsa ntawm cov thoob dej tshuaj thiab cov reactors, lawv tuaj yeem tiv taus kev yaig ntawm ntau yam kua qaub, cov hauv paus, thiab cov kuab tshuaj organic ntev, ua kom lub neej ua haujlwm ntawm cov khoom siv. Tib lub sijhawm, lawv kuj muaj kev tiv thaiv cua sov zoo. Thaum txheej rau ntawm cov kav dej kub thiab lub cav, lawv yuav tsis tev tawm yooj yim vim kub siab.
• Cov ntaub ntawv fiber: Nws yog siv los tsim cov fibers ua tau zoo. Cov polyimide fibers tsim tawm muaj lub zog siab, modulus siab, thiab thermal stability zoo heev. Lawv feem ntau siv los tsim cov khaub ncaws tiv thaiv hluav taws, cov hlua tshwj xeeb rau aerospace, thiab lwm yam, muab kev tiv thaiv txhim khu kev qha rau cov neeg ua haujlwm thiab cov khoom siv hauv qhov kub thiab txias thiab muaj kev pheej hmoo siab.

Ntim thiab Xa Khoom

20KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua

Khaws cia thiab khaws cia

Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.