Chaw Tsim Khoom OEM 3, 3′, 4, 4′-Biphenyltetracarboxylic Dianhydride/Bpda CAS 2420-87-3 rau Organic Synthesis
Peb paub tias peb tsuas vam meej yog tias peb tuaj yeem lav peb cov nqi sib tw ua ke thiab qhov zoo heev tib lub sijhawm rau OEM Chaw Tsim Khoom 3, 3′, 4, 4′-Biphenyltetracarboxylic Dianhydride/Bpda CAS 2420-87-3 rau Organic Synthesis, Peb txais tos cov neeg siv khoom, cov koom haum lag luam thiab cov phooj ywg los ntawm txhua qhov chaw hauv ntiaj teb los tham nrog peb thiab nrhiav kev koom tes rau kev sib koom tes zoo.
Peb paub tias peb tsuas vam meej yog tias peb tuaj yeem lav peb cov nqi sib tw ua ke thiab qhov zoo heev tib lub sijhawm rau, Tam sim no peb yuav tsum txuas ntxiv ua raws li "zoo, ntxaws ntxaws, ua haujlwm tau zoo" lub tswv yim lag luam ntawm "ncaj ncees, lub luag haujlwm, tsim kho tshiab" lub siab ntawm kev pabcuam, ua raws li daim ntawv cog lus thiab ua raws li lub koob npe nrov, cov khoom zoo tshaj plaws thiab txhim kho kev pabcuam txais tos cov neeg siv khoom txawv teb chaws.
3,3 ', 4,4' – Biphenyltetracarboxylic dianhydride yog ib qho khoom siv tseem ceeb ntawm polyimide monomer uas muaj kev siv dav hauv kev tsim cov khoom siv polyimide uas tiv taus kub siab. Siv rau kev tsim cov khoom polyimide thiab lawv cov ntaub ntawv sib xyaw, cov tshuaj intermediates.
CAS 2420-87-3 ntawm 3,3′,4,4′-Biphenyltetracarboxylic dianhydride yog ib qho qauv tshwj xeeb thiab kev ua tau zoo heev aromatic dianhydride compound, thiab nws kuj yog ib qho tseem ceeb monomer rau kev tsim cov khoom siv polymer ua tau zoo. Nws muaj qhov chaw thov tsis tau hauv cov teb xws li aerospace, cov ntaub ntawv hluav taws xob, thiab cov khoom siv siab.
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Kub taw tes | 614.9±48.0 °C (Kwv yees) |
| Qhov Ceev | 1.625 ± 0.06 g/cm3 (Kwv yees) |
| Qhov kub yaj | 299-305 °C (lit.) |
| λmax | 300nm (lit.) |
| Kev dawb huv | 99% |
| Cov xwm txheej cia khoom | Huab cua tsis muaj zog, Kub hauv chav |
3,3′,4,4′-Biphenyltetracarboxylic dianhydride (CAS 2420-87-3, luv ua BPDA) yog ib lub monomer tseem ceeb rau kev tsim cov khoom siv polymer ua tau zoo, thiab nws cov ntawv thov yog tsom mus rau cov khoom siv siab.
1. 3,3′,4,4′-Biphenyltetracarboxylic dianhydride yog siv ua cov khoom siv tiv taus kub siab rau cov dav hlau (xws li cov khoom hauv zos ntawm cov thawv satellite) thiab cov txheej rwb thaiv tsev rau cov cav; Lub substrate antenna ywj pheej ntawm cov khoom siv thiab cov txheej rwb thaiv tsev cable tiv taus kub siab.
2. BPDA siv tau rau hauv cov integrated circuits (ics): los npaj cov zaj duab xis insulating interlayer, txo qhov deformation uas tshwm sim los ntawm kev kub ntawm cov chip, thiab txhim kho kev ruaj khov ntawm cov chip. Nws yog ua rau cov khoom siv PI sib xyaw (xws li cov carbon fiber thiab graphite uas tau sau), uas siv rau hauv cov bearings thiab cov seals hauv qab qhov kub siab ua haujlwm (xws li cov khoom sib khi ntawm cov cav tsheb thiab cov khoom siv tshuaj), hloov cov khoom siv hlau kom txo qhov hnav thiab xeb.
3. Dhau li ntawm polyimide, BPDA kuj tseem tuaj yeem ua rau muaj kev cuam tshuam nrog cov monomers sib txawv los tsim lwm cov ntaub ntawv polymer ua haujlwm, nthuav nws cov ciam teb thov
Polyamideimide hluavtaws (PAI): BPDA cuam tshuam nrog diisocyanate los tsim PAI. Hom khoom siv no muab kev tiv taus kub siab ntawm PI thiab kev tiv taus kev cuam tshuam ntawm polyamide, thiab tuaj yeem siv los npaj cov khoom yas engineering zoo tshaj plaws.
Polyetherimide hluavtaws (PEI): Nws ua haujlwm nrog diamines uas muaj ether bonds los tsim PEI. Nws qhov kev ua tau zoo dua li PI ib txwm muaj. Nws tuaj yeem ua rau hauv lub plhaub ntawm cov khoom siv hluav taws xob thiab cov khoom sib txuas uas tiv taus kub siab los ntawm kev txhaj tshuaj molding, xav txog ob qho tib si lub zog thiab yooj yim ua.
4. Cov pawg anhydride hauv BPDA molecule tuaj yeem dhau los ua cov tshuaj tiv thaiv qhib nrog cov pawg epoxy ntawm epoxy resin thiab siv tau ua cov neeg sawv cev kho kom sov siab:
4,4′-Biphthalic Anhydride 2420-87-3 feem ntau yog siv rau kev npaj "cov ntaub ntawv epoxy sib xyaw ua ke uas tiv taus kub siab", xws li kev kho cov hauv paus hniav ntawm cov hniav cua turbine (uas yuav tsum tau tiv taus lub sijhawm ntev sab nraum zoov kub siab laus) thiab kev kho cov epoxy substrates rau cov laug cam Circuit Court siab, los txhim kho qhov ruaj khov thermal (Tg ntawm cov ntaub ntawv kho tuaj yeem nce mus txog ntau dua 180 ℃) thiab lub zog kho tshuab ntawm cov ntaub ntawv epoxy.
Feem ntau ntim rau hauv 25kg / nruas, thiab kuj tuaj yeem ua pob khoom raws li koj xav tau.
Peb paub tias peb tsuas vam meej yog tias peb tuaj yeem lav peb cov nqi sib tw ua ke thiab qhov zoo heev tib lub sijhawm rau OEM Chaw Tsim Khoom 3, 3′, 4, 4′-Biphenyltetracarboxylic Dianhydride/Bpda CAS 2420-87-3 rau Organic Synthesis, Peb txais tos cov neeg siv khoom, cov koom haum lag luam thiab cov phooj ywg los ntawm txhua qhov chaw hauv ntiaj teb los tham nrog peb thiab nrhiav kev koom tes rau kev sib koom tes zoo.
Chaw Tsim Khoom OEM 3 3'44′-Biphenyltetracarboxylic Dianhydride thiab Bpda, Tam sim no peb yuav tsum txuas ntxiv ua raws li "zoo, ntxaws ntxaws, ua haujlwm tau zoo" lub tswv yim lag luam ntawm "ncaj ncees, lub luag haujlwm, tsim kho tshiab" lub siab ntawm kev pabcuam, ua raws li daim ntawv cog lus thiab ua raws li lub koob npe nrov, cov khoom lag luam zoo tshaj plaws thiab txhim kho kev pabcuam txais tos cov neeg siv khoom txawv teb chaws.
