Cov Khoom Siv Ua Haujlwm Siab - Polyimide (2)

Plaub, daim ntawv thov ntawmpolyimide:
Vim yog cov yam ntxwv ntawm cov saum toj no - hais txog polyimide hauv kev siv thiab cov khoom siv hluav taws xob, nws yog qhov nyuaj rau ntau yam kev ua tau zoo hauv txhua qhov kev ua tau zoo. Cov.
1. Zaj duab xis: nws yog ib qho ntawm cov khoom lag luam ntxov tshaj ntawm polyimide, uas siv rau lub qhov txhab nyiaj ntawm lub cev muaj zog thiab cov ntaub qhwv rau cables. Cov khoom tseem ceeb yog Dupont Kapton, wber kev lag luam 'upilex koob thiab Zhongyuan apical. Pob tshab Polyimide cov yeeb yaj kiab los ua cov xov xwm ci ntsa iab zoo li qub.
2. Txheej: siv raws li insulating varnish rau Electromagnetic hlau, lossis siv raws li qhov kub siab tiv thaiv.
3. Advanced Composite: Siv hauv Aerospace, dav hlau thiab cov pob zeb. Nws yog ib qho kub siab tshaj plaws tiv thaiv cov khoom siv kub tshaj plaws. Piv txwv li, U.S. Supersonic Airliner program yog tsim nrog kev nrawm ntawm 2.4m, qhov kub ntawm 177 ° C thaum lub davhlau, thiab lub neej tsim nyog ntawm 60,000h. Raws li cov lus tshaj tawm, 50% ntawm cov ntaub ntawv cov qauv tau txiav txim siab siv thermoplastic polyimide ua cov kab ua ke. Carbon Fiber txhawb cov khoom siv, cov nyiaj ntawm txhua lub dav hlau yog li 30t.
4. Fiber: Cov modulus ntawm elasticity yog thib ob tsuas yog rau carbon fiber. Nws yog siv los ua cov khoom siv lim rau cov khoom siv kub siab thiab cov khoom siv hluav taws xob, nrog rau cov ntawv luam tawm thiab cov ntawv hluav taws kub.
5. Ua npuas ncauj yas: siv kom sov kub tiv thaiv thaum tshav kub kub cov ntaub ntawv.
6. Engineering plastics: Muaj cov thickosetting thiab thermoploastic hom. Thermopoplastic hom tuaj yeem ua pwm lossis txhaj tshuaj pwm lossis hloov pwm. Mas siv rau tus kheej - lubrication roj, sealing, rwb thaiv tsev thiab cov khoom siv. Guangcheng polyimide cov ntaub ntawv tau pib siv rau cov khoom siv tshuab xws li compressor qeeb cates, piston rings thiab cov ntsaws ruaj ruaj.
7. Cov nplaum: siv raws li cov txheej txheem kub siab. Guangcheng polyimide adhesive tau tsim ua lub siab - rwb thaiv tsev pachating pageing rau hluav taws xob sib xyaw.
8. Cais cov mem caj dab: siv rau kev sib cais ntawm ntau cov roj roj roj, nitrogen lossis metrogen lossis metrogen lossis metrogen lossis mettras los ntawm huab cua hydrocarbon pub roj thiab dej cawv. Nws kuj tseem siv tau raws li pervaporation membrane thiab ultrafiltration membrane. Vim yog cov kub tiv thaiv thiab cov organic tsom rau ntawm polyimide, nws yog qhov tseem ceeb hauv kev sib cais ntawm cov pa roj organic thiab kua.
9. Tus photoresist: muaj cov tsis zoo thiab ua kom pom zoo, thiab kev daws teeb meem tuaj yeem ncav cuag subicron. Nws tuaj yeem siv rau hauv cov xim lim zaj duab xis ua ke nrog cov pigments lossis dyes, uas tuaj yeem yooj yim yooj yim rau cov txheej txheem ua.
10. Daim ntawv thov nyob rau hauv cov khoom siv microelrrictronic siv: raws li txheej txheem inter thaiv, raws li cov txheej tsis muaj kev ntxhov siab thiab txhim kho cov paib. Ua ib txheej tiv thaiv, nws tuaj yeem txo cov cawv ntawm ib puag ncig ntawm lub cuab yeej ntawm lub cuab yeej, thiab tseem tuaj yeem tiv thaiv lub tshuab - (softerror) ntawm lub cuab yeej.
11. Alignment Tus Neeg Sawv Cev rau Ua Kua Crystal zaub:PolyimideUa lub luag haujlwm tseem ceeb hauv cov lus qhia txog tn
12. Electro - Optic cov ntaub ntawv: siv raws li passive waveguide cov ntaub ntawv, thiab siv polyimide hauv kev sib txuas lus zoo nkauj tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom siv. ruaj khov.
Txhawm rau kom paub tias yog vim li cas polyimide tuaj yeem sawv ntawm cov neeg muaj ntxhiab tsw qab heterocyclic uas tau tshwm sim hauv 1960, thiab thaum kawg dhau los ua cov ntaub ntawv tseem ceeb ntawm cov ntaub ntawv polymer.

5. Outlook:
Raws li kev cog lus polymer,polyimideTau raug lees paub tag nrho, thiab nws daim ntawv thov hauv cov ntaub ntawv insulating thiab cov khoom siv tau nyob tas li. Nyob rau hauv cov nqe lus ntawm cov ntaub ntawv ua haujlwm, nws yog kev tawm, thiab nws lub peev xwm tseem tau tshawb nrhiav. Txawm li cas los xij, tom qab tau 40 xyoo ntawm kev txhim kho, nws tseem tsis tau dhau los ua ntau yam loj. Qhov laj thawj tseem ceeb yog qhov nqi yog tseem muaj ntau ntxiv nrog rau lwm cov polymers. Yog li ntawd, ib qho ntawm cov lus qhia tseem ceeb ntawm kev tshawb fawb polyimide nyob rau yav tom ntej tseem yuav tsum nrhiav cov hauv kev los txo cov nqi hauv monomer synthesis thiab polymerization txoj kev.
1. Khoom cua ntawm monomers: cov monomers ntawm polyimide yog dianhydride (tetraacid) thiab txoj sia. Synthesis txoj kev sib cuam tshuam yog cov paub tab, thiab ntau tus uas sib cuam tshuam tseem ua lag luam muaj. Dianhydride yog ib qho tshwj xeeb tshwj xeeb monomer, uas yog siv nyob rau hauv cov synthesis ntawm polyimide tshwj tsis yog tus kho tus neeg sawv cev ntawm epoxy cob qhia. PyRomellitic dianhydride thiab trimellitic anhydride tuaj yeem tau txais los ntawm ib qho - theem roj thiab ua kua theem oxidation ntawm cov roj uas muaj cov roj av uas muaj ntxhiab, cov khoom siv roj av ntxiv. Lwm qhov tseem ceeb Dianhydrides, xws li Benzophenone dianhydride, diphenyl augherrride, thiab lwm yam, tau muab cov khoom siv ntau yam, tab sis tus nqi yog kim heev. vam txog. Tsim los ntawm ChangChun lub koom haum ntawm kev thov chemistry, Suav Academy ntawm Kev Tshawb Fawb, Siab - Purity 4 - Chlorophtic anhydride anhydride ager, oxidation thiab isomerization sib cais. Siv ob lub tebchaw no yog cov khoom siv raw tuaj yeem ua ke nrog cov peev txheej dianhydrides, nrog txoj kev txo nqi, yog ib txoj kev muaj txiaj ntsig zoo.
2. Polymerization txheej txheem: Tam sim no siv ob kauj ruam - Kauj Ruam Txheej Txheem Txhua yam siv siab ntev ntev. Tus nqi ntawm aprotic polar cov kuab tshuaj yog qhov tseem ceeb, thiab nws yog qhov nyuaj rau tshem lawv. Thaum kawg, kev kho kom kub siab - yuav tsum tau ua. PMR txoj kev siv cov cawv cawv tsis muaj cawv. Thermoplastic polyimide tuaj yeem yog polymerized thiab graniced ncaj qha rau hauv extruder nrog cov kuab tshuaj thiab cov kuab tshuaj yog xav tau, thiab kev ua haujlwm tau zoo tuaj yeem txhim kho. Nws yog txoj kev lag luam hluavtaws feem ntau tau txais polymide los ntawm ncaj qha polymerizing chlorophthalc, sodium sulfur lossis ntoo sulfur tsis muaj mus dhau dianhydride.
3. Kev Ua: Daim ntawv thov polyimide dav, thiab muaj kev sib sib zog nqus cov tshuab, thiab lwm yam.
Nrog kev txhim kho txuas ntxiv ntawm kev ua cov thev naus laus zis thiab kev txo cov nqi hluav taws xob, nrog rau cov khoom siv hluav taws xob siab dua hauv cov ntaub ntawv hauv lub neej tom ntej. Thiab thermoplastic polyimide yog qhov zoo dua vim yog nws cov txheej txheem zoo.

6. Xaus:
Ob peb yam tseem ceeb rau kev txhim kho qeeb ntawmpolyimide:
1. Npaj cov khoom siv raw rau cov khoom siv polyimide: kev ua kom huv ntawm pyromellitic dianhydride tsis txaus.
2. Cov khoom siv raw ntawm pyromellitic dianhydride, uas yog, cov zis ntawm durene yog txwv. Cov Khoom Siv Thoob Ntiaj Teb: 60,000 tons / Xyoo, Kev Tso Tawm Tawm Hauv Tsev: 5,000 tons / xyoo.
3. Cov nqi ntau lawm ntawm Pyromellitic dianhydride yog ib yam nkaus. Nyob hauv lub ntiaj teb, txog 1.2 - 1.4 tons ntawm durene tsim 1 tuj ntawm pyromellitic dianhydride, thaum cov khoom lag luam zoo tshaj plaws hauv kuv lub tebchaws tsim muaj txog 2.0 - 2.25 tons ntawm durene. Tons, tsuas yog Cargshu Tsoomfwv Choj Choj Tshuaj Co., Ltd. Hu rau 1.6 tons / tuj.
4. Cov khoom siv ntau lawm ntawm polyimide yog tsawg heev los tsim kev lag luam, thiab sab kev sib txheeb ntawm polyimide muaj ntau thiab nyuaj.
5. Feem ntau cov chaw lag luam hauv tsev muaj kev paub ib txwm muaj, uas txwv qhov chaw thov rau qee qhov ntau. Lawv nquag siv cov khoom lag luam txawv teb chaws ua ntej lossis saib cov khoom lag luam txawv teb chaws ua ntej nrhiav rau lawv hauv Suav teb. Cov kev xav tau ntawm txhua lub lag luam tuaj los ntawm cov kev xav tau ntawm cov neeg siv dej hauv cov chaw lag luam hauv kev lag luam, cov lus qhia cov ntaub ntawv; Cov chaw raws seem yog tsis du, muaj ntau qhov txuas hauv nruab nrab, thiab cov nyiaj tau los yog cov duab raug.