3,3 ', 4,4'-biphenyltyltylaliscargarboxylic dianhydride Cas: 2420-87-3 3

Kev siv

3,3 ', 4,4'-biphenyltylteretracargarboxylic dianhydride (BPDA)yog qhov tseem ceeb hauv nruab nrab hauv cov synthic thiab muaj ntau cov ntawv thov:

Polyimimide synthesis

• Cov kev ua tau zoo cov yeeb yaj kiab: nws tuaj yeem yauv ua cov tshuaj tiv thaiv kev sib xyaw ua ke nrog cov duab sib dhos los tsim cov yeeb yaj kiab polyimide. Cov yeeb yaj kiab no muaj kev kub siab heev-kub. Txawm nyob hauv ib puag ncig kub siab tshaj 200 ° C, lawv tseem tuaj yeem tswj cov khoom siv zoo thiab hluav taws xob rwb thaiv tsev. Yog li ntawd, lawv feem ntau siv nyob rau hauv aerospace teb rau lub rwb thaiv tsev kev ua hluav taws xob ntawm cov khoom siv hluav taws xob thiab ua cov khoom siv hluav taws xob rau cov khoom lag luam luam tawm.
• Kev tsim kho kom haum: cov synthesized polyimide coracing engineering plastics muaj lub zog siab, zoo rigidity, thiab tseem hnav-resistant. Lawv tuaj yeem txhaj tshuaj-moulded los tsim qee qhov chaw ua kom haum rau cov kev xav tau nruj me me nyob sab hauv high-de mechaev mechaev mechaev kho tshuab watches.
• Txheej xyoob: polyimide pleev xim synthesized raws li BPDA muaj kev lom zem corrosion tsis kam. Thaum ua ntawv thov rau sab hauv phab ntsa ntawm cov tso tsheb hlau luam yeeb tshuaj chev thiab reasion, lawv tuaj yeem tiv thaiv cov kua qaub rau lub sijhawm ntev, ua kom lub neej pabcuam. Nyob rau tib lub sijhawm, lawv kuj muaj cov cua sov tsis kam. Thaum coated ntawm cov ntsuas cua sov siab thiab cov teeb cav lub cav, lawv yuav tsis tev yooj yim vim tias muaj qhov kub.
• Cov ntaub ntawv fiber ntau: nws yog siv los tsim cov khoom ua haujlwm siab. Cov polyimide cov qoob loo tsim muaj lub zog siab, cov modulus siab, thiab zoo heev ua hluav taws xob ruaj khov. Lawv feem ntau siv los tsim cov hluav taws haum, tshwj xeeb cov hlua khi rau Aerospace, thiab lwm yam, muab cov khoom siv thiab cov khoom siv hauv siab thiab cov xwm txheej siab.

Ntim thiab Thauj Khoom

20kg / nruas lossis raws li cov neeg siv khoom.
Belongs rau cov khoom lag luam thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua

Khaws thiab Cia

Txee lub neej: 24 lub hlis txij hnub ua lag luam hauv cov khoom ntim tsis tau ntim rau hauv qhov chaw txias txias tawm ntawm lub hnub ncaj qha, dej.
Qhov chaw ua kom lub tsev rau khoom, tsis muaj kub kom qhuav ziab, sib cais los ntawm oxidants, acids.