Luv keeb kwm ntawm cov ntaub ntawv insulating

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Luv keeb kwm ntawm cov ntaub ntawv insulating

Cov ntaub ntawv rwb thaiv tsev yog lub hauv paus thiab lav ntawm kev tsim cov khoom siv hluav taws xob, uas ua lub luag haujlwm tseem ceeb hauv kev tsim cov tshuab hluav taws xob thiab kev lag luam hluav taws xob. Kev txhim kho thiab kev nce qib ntawm cov ntaub ntawv insulating yog nyob ntawm kev tsim cov khoom siv polymer thiab ncaj qha txwv thiab cuam tshuam rau kev txhim kho thiab kev nce qib ntawm cov khoom siv hluav taws xob.

Cov khoom siv rwb thaiv tsev yog tus yuam sij rau kev siv thev naus laus zis ntawm cov khoom siv hluav taws xob, thiab tseem yog ib qho tseem ceeb lav rau kev ua haujlwm ntev thiab txhim khu kev qha ntawm cov khoom siv hluav taws xob. Yog li ntawd, nws yuav tsum tau tsim ntau yam tshiab ntawm cov ntaub ntawv insulating, txhim kho cov khoom ua tau zoo thiab zoo kom tau raws li qhov xav tau ntawm kev txhim kho txuas ntxiv ntawm cov khoom siv hluav taws xob.

Tom qab ntau tshaj 50 xyoo ntawm txoj kev loj hlob, Tuam Tshoj cov khoom siv insulating kev lag luam tau pib tsim ib qho kev lag luam nrog cov khoom tiav, ua tiav cov chaw txhawb nqa thiab cov khoom siv ntau thiab cov kev tshawb fawb tshawb fawb. Tshwj xeeb tshaj yog nyob rau hauv 20 xyoo dhau los, ntau yam ntawm cov ntaub ntawv insulating tau tsim sai heev, qhov zoo tau zoo heev, thiab cov khoom theem tau mus txog qhov siab tshiab.

Ua ntej xyoo pua 20th, cov ntaub ntawv insulating tau pib los ntawm cov ntaub ntawv ntuj lossis lawv cov khoom. Cov tshuab hluav taws xob ntxov tshaj plaws tau siv cov ntaub lo lo ntxhuav, paj rwb thiab paj rwb ntaub ua cov ntaub ntawv rwb thaiv tsev. Txhawm rau txhim kho dej tsis kam, cov khoom siv ntuj xws li shellac, roj zaub thiab asphalt tau siv rau impregnation.

Thaum pib ntawm lub xyoo pua 20th, vim yog kev txhim kho ntawm cov organic synthesis thiab polymer chemistry, thawj cov hluavtaws polymer, phenolic resin, tau tsim. Nws kuj yog ib qho tseem ceeb invention nyob rau hauv lub tshav pob ntawm cov ntaub ntawv insulating. Sai li phenolic resin tawm, nws tau siv dav. Nws tau tsim rau hauv cov xim pleev xim, cov yas, cov khoom siv fiber ntau thiab cov khoom laminated raws li phenolic resin. Tom qab ntawd, urea formaldehyde resin, aniline formaldehyde resin, melamine formaldehyde resin thiab glycerin resin tshwm.

Txij li xyoo 1930s, PVC, PE, polytetrafluoroethylene, neoprene thiab polyvinyl acetal tau tsim. Tom qab xyoo 1950, kev tsim khoom ntawm silicone resin, polyester zaj duab xis, unsaturated polyester resin, epoxy resin, thiab lwm yam, thiab kev lag luam tsim cov iav fiber ntau thiab mica khoom pib los txhawb kev txhim kho cov ntaub ntawv rwb thaiv tsev. Nrog rau txoj kev loj hlob ntawm niaj hnub polymer chemistry thiab kev lag luam, lub sij hawm kev loj hlob ntawm cov ntaub ntawv tshiab insulating raws li hluavtaws polymers tau pib tiag tiag. Cov polymers uas tshwm sim hauv ntu dhau los tau siv rau hauv cov ntaub ntawv rwb thaiv tsev ib qho tom qab, thiab cov khoom siv rwb thaiv tsev tshiab tau tsim sai heev, xws li cov xim tsis muaj kuab tshuaj siv hauv lub cev muaj zog.

Impregnation; nyias zaj duab xis composite khoom raws li qhov rwb thaiv tsev ntawm lub cev muaj zog; mica cov khoom tsim tau sai heev thiab tau siv nyob rau hauv loj-scale high-voltage generator; sulfur hexafluoride tuaj tawm thiab tau siv rau hauv cov khoom siv hluav taws xob high-voltage.

Nyob rau xyoo 1970, nrog rau kev txhim kho ntxiv ntawm kev lag luam polymer rau kev lag luam loj, F-chav kawm tshiab thiab H-class rwb thaiv tsev cov khoom siv tau pib tshwm sim hauv kev lag luam rwb thaiv tsev. Polyimide, polyamide imide, polyimide, polydiphenyl ether thiab lwm yam thermal rwb thaiv tsev xim, cov nplaum thiab cov yeeb yaj kiab, nrog rau kev hloov kho epoxy, unsaturated polyester thiab polyarylene tau txuas ntxiv tsim cov khoom tshiab, xws li amide fiber ntau daim ntawv thiab nws cov ntaub ntawv sib xyaw. Cov khoom siv hluav taws xob tiv thaiv hluav taws xob tau hloov kho mus rau qib B hauv ntau qhov ntau, thiab qib tshiab F thiab qib H insulating cov ntaub ntawv tau siv rau hauv cov motors tshwj xeeb xws li metallurgy, crane, locomotive motor, thiab lwm yam.

Txij li xyoo 1980s, Tuam Tshoj tau tsim cov khoom loj F-chav kawm thiab H-chav rwb thaiv tsev ntawm nws tus kheej, uas tau txhim kho kev ua tau zoo. Piv txwv li, hloov kho diphenyl ether, hloov kho bismaleimide, hloov polyesterimide enamelled hlau xim, polyamide imide enamelled hlau xim, polyimide enamelled hlau xim, F-chav kawm thiab H-class iav fiber ntau khoom, high-kev ua tau zoo polyimide zaj duab xis, F-class epoxy mica daim kab xev tau tshwm sim Thiab hais txog. Solventless impregnation resin thiab ceev kom qhuav impregnation xim tau tsim sai heev. Mica daim kab xev nrog cov roj hmab tsawg dua thiab VPI (lub tshuab nqus tsev siab impregnation) impregnation resin pib siv.

Kev siv nanotechnology niaj hnub los tsim cov ntaub ntawv nano rwb thaiv tsev. Nanotechnology tuaj yeem siv rau hauv ntau qhov chaw, suav nrog cov ntaub ntawv insulating. Nano nplai hmoov (xws li ntawm 1 mus rau 100 nm) tuaj yeem sib txawv hauv cov khoom siv polymer, lossis nano crystalline lossis cov ntaub ntawv tsis muaj crystalline tuaj yeem tsim lossis ntxiv rau hauv cov polymer, lossis nano micropores lossis npuas tuaj yeem tsim. Vim yog cov yam ntxwv ntawm nano hais, cov ntaub ntawv sib xyaw ua kom pom cov khoom tshwj xeeb thiab txawv txawv, uas ua rau cov ntaub ntawv nano txhim kho rau hauv cov khoom lag luam tshiab. Tam sim no, Tuam Tshoj tau ua tiav kev tshawb fawb hauv daim teb no, xws li Sichuan University tau ua tiav cov yeeb yaj kiab polyimide / montmorillonite nanocomposite. Daim ntawv thov ntawm nano cov ntaub ntawv yuav qhib rau txoj kev loj hlob zeem muag ntawm cov ntaub ntawv tshiab thiab tshiab technologies rau ntau yam tshiab thiab txawv zog uas cov tsoos insulating cov ntaub ntawv tsis tuaj yeem ua tiav.