Daim ntawv thov ntawm Ultra-Short Carbon Fiber

Raws li tus tswv cuab tseem ceeb ntawm cov khoom sib xyaw ua ke, ultra-luv luv carbon fiber, nrog nws cov khoom tshwj xeeb, tau ua rau muaj kev nyiam nyob hauv ntau qhov chaw lag luam thiab thev naus laus zis. Nws muab cov kev daws teeb meem tshiab rau kev ua haujlwm siab ntawm cov ntaub ntawv, thiab kev nkag siab tob txog nws cov kev siv thev naus laus zis thiab cov txheej txheem yog qhov tseem ceeb los tsav kev txhim kho cov kev lag luam cuam tshuam.

Electron micrographs ntawm ultrashort carbon fibers

Feem ntau, qhov ntev ntawm ultra-luv carbon fibers yog nyob nruab nrab ntawm 0.1 - 5mm, thiab lawv qhov ceev yog tsawg ntawm 1.7 - 2g / cm³. Nrog ib tug tsawg ntom ntawm 1.7 - 2.2g / cm³, lub tensile zog ntawm 3000 - 7000MPa thiab ib tug modulus elasticity ntawm 200 - 700GPa, cov zoo heev mechanical zog tsim lub hauv paus rau nws siv nyob rau hauv load-bearing lug. Tsis tas li ntawd, nws muaj qhov kub thiab txias tsis kam, thiab tuaj yeem tiv taus qhov kub siab tshaj 2000 ° C hauv qhov chaw tsis muaj oxidizing.

Daim ntawv thov Technology thiab txheej txheem ntawm Ultra-luv Carbon Fiber hauv Aerospace Field

Nyob rau hauv aerospace teb, ultra-luv carbon fiber yog tsuas yog siv los txhawbresinmatrix composites. Tus yuam sij ntawm kev siv tshuab yog ua kom cov pa roj carbon fiber ntau sib npaug hauv cov resin matrix. Piv txwv li, kev siv tshuab ultrasonic dispersion tuaj yeem cuam tshuam qhov tshwm sim ntawm carbon fiber agglomeration, kom cov dispersion coefficient nce mus txog ntau tshaj 90%, kom ntseeg tau qhov sib xws ntawm cov khoom siv. Nyob rau tib lub sijhawm, kev siv cov tshuab fiber ntau kho qhov chaw, xws li kev sivcoupling tus neeg sawv cevkev kho mob, tuaj yeem ua raucarbon fiber ntauthiab resin interface daim ntawv cog lus muaj zog nce los ntawm 30% - 50%.

Hauv kev tsim cov dav hlau tis thiab lwm yam khoom siv, kev siv cov txheej txheem kub nias tank. Ua ntej ntawm tag nrho cov, lub ultra-luv carbon fiber thiab resin tov nrog ib tug tej yam kev faib ua feem ntawm prepreg, muab tso rau hauv lub kub xovxwm tank. Tom qab ntawd nws yog kho thiab molded ntawm qhov kub ntawm 120 - 180 ° C thiab lub siab ntawm 0.5 - 1.5MPa. Cov txheej txheem no tuaj yeem tso tawm cov pa npuas hauv cov khoom sib xyaw kom ntseeg tau qhov ntom ntom thiab ua haujlwm siab ntawm cov khoom.

Tshuab thiab txheej txheem rau daim ntawv thov ntawm Ultra-Short Carbon Fiber nyob rau hauv Automotive kev lag luam

Thaum siv ultra-luv luv carbon fiber rau automotive qhov chaw, lub hom phiaj yog nyob rau hauv kev txhim kho nws compatibility nrog lub hauv paus khoom. Los ntawm kev ntxiv cov compatibilizers tshwj xeeb, qhov sib cuam tshuam ntawm cov pa roj carbon fibers thiab cov ntaub ntawv hauv paus (xws lipolypropylene, thiab lwm yam) tuaj yeem nce li ntawm 40%. Nyob rau tib lub sijhawm, txhawm rau txhim kho nws cov kev ua tau zoo nyob rau hauv ib puag ncig kev nyuaj siab, fiber ntau orientation tsim tshuab siv los kho cov kev taw qhia ntawm fiber ntau raws li cov kev taw qhia ntawm kev ntxhov siab ntawm ib feem.

Cov txheej txheem txhaj tshuaj molding feem ntau yog siv los tsim cov khoom xws li tsheb hoods. Ultra-luv luv carbon fibers yog tov nrog yas hais thiab ces txhaj rau hauv pwm kab noj hniav los ntawm kub thiab siab. Kev txhaj tshuaj kub yog feem ntau 200 - 280 ℃, qhov kev txhaj tshuaj siab yog 50 - 150 MPa. Cov txheej txheem no tuaj yeem paub qhov nrawm molding ntawm cov khoom zoo li qub, thiab tuaj yeem ua kom muaj kev sib faib ntawm cov pa roj carbon fiber ntau hauv cov khoom.

Technology thiab txheej txheem ntawm Ultra-luv Carbon Fiber Application hauv Electronics Field

Hauv kev lag luam hluav taws xob hluav taws xob, kev siv thermal conductivity ntawm ultra-luv carbon fibers yog qhov tseem ceeb. Los ntawm optimizing lub graphitization degree ntawm carbon fiber, nws thermal conductivity yuav nce mus rau ntau tshaj 1000W / (mK). Lub caij no, kom ntseeg tau tias nws muaj kev sib cuag zoo nrog cov khoom siv hluav taws xob, kev siv thev naus laus zis, xws li tshuaj lom neeg nickel plating, tuaj yeem txo qhov tsis kam ntawm carbon fiber ntau dua 80%.

Cov txheej txheem hmoov metallurgy tuaj yeem siv rau hauv kev tsim cov tshuab computer CPU heatsinks. Lub ultra-luv carbon fiber yog tov nrog hlau hmoov (xws li tooj liab hmoov) thiab sintered nyob rau hauv kub thiab siab. Lub sintering kub yog feem ntau 500 - 900 ° C thiab lub siab yog 20 - 50 MPa. Cov txheej txheem no ua rau cov pa roj carbon fiber ntau los ua kom muaj cua sov zoo nrog cov hlau thiab txhim kho cov cua sov kom zoo.

Los ntawm aerospace mus rau automotive kev lag luam mus rau electronics, nrog rau kev nruam ntej ntawm technology thiab txheej txheem optimization, ultra-luvcarbon fiber ntauyuav ci ntsa iab nyob rau hauv ntau lub teb, txhaj ntau lub zog rau niaj hnub science thiab technology thiab kev lag luam kev loj hlob.