Niaj hnub no lub sijhawm ntawm kev nce qib ntawm kev siv thev naus laus zis sai, carbon fiber ntau tau ua lub npe rau lawv tus kheej hauv ntau qhov chaw vim lawv qhov kev ua tau zoo tshaj. Los ntawm kev siv high-end hauv aerospace mus rau txhua hnub kev xav tau ntawm cov khoom ua si, carbon fiber ntau tau pom muaj peev xwm zoo. Txawm li cas los xij, txhawm rau npaj cov kev ua haujlwm siab carbon fiber ntau, kev kho kom ua haujlwm ntawmcarbon fibersyog ib kauj ruam tseem ceeb.
Carbon fiber nto electron microscope daim duab
Cov pa roj carbon fiber ntau, cov khoom siv fiber ntau ua haujlwm zoo, muaj ntau yam khoom tsim nyog. Nws yog tsuas yog tsim los ntawm carbon thiab muaj ib tug elongated filamentary qauv. Los ntawm qhov pom ntawm cov qauv saum npoo, qhov saum npoo ntawm cov pa roj carbon fiber yog tus du thiab muaj cov pab pawg ua haujlwm tsawg dua. Qhov no yog vim lub fact tias thaum lub sij hawm npaj ntawm carbon fibers, high-temperature carbonization thiab lwm yam kev kho mob ua rau lub nto ntawm carbon fibers tam sim no inert lub xeev ntau. Cov cuab yeej saum npoo no coj cov teeb meem nyuaj rau kev npaj cov carbon fiber ntau.
Qhov saum npoo du ua rau kev sib raug zoo ntawm cov khoom siv carbon fiber thiab matrix tsis muaj zog. Hauv kev npaj ntawm cov khoom sib xyaw, nws yog qhov nyuaj rau cov khoom siv matrix los tsim cov ntawv cog lus muaj zog ntawm qhov chaw.carbon fiber ntau, uas cuam tshuam rau tag nrho kev ua tau zoo ntawm cov khoom sib xyaw. Qhov thib ob, qhov tsis muaj cov pab pawg ua haujlwm tsis muaj zog txwv cov tshuaj tiv thaiv ntawm carbon fibers thiab matrix cov ntaub ntawv. Qhov no ua rau kev sib txuas ntawm kev sib txuas ntawm ob feem ntau yog vam khom rau lub cev, xws li kev siv tshuab embedding, thiab lwm yam., uas feem ntau tsis ruaj khov txaus thiab nws yooj yim rau kev sib cais thaum raug rau sab nraud quab yuam.
Schematic daim duab ntawm interlayer reinforcement ntawm carbon fiber ntaub los ntawm carbon nanotubes
Txhawm rau daws cov teeb meem no, kev kho kom zoo ntawm cov pa roj carbon fibers yuav tsum tau ua. Qhib qhibcarbon fibersqhia kev hloov pauv tseem ceeb hauv ntau yam.
Kev kho kom ua kom lub ntsej muag roughness ntawm carbon fibers. Los ntawm cov tshuaj oxidation, plasma kev kho mob thiab lwm txoj kev, cov pits me me thiab cov grooves tuaj yeem raug etched rau hauv cov pa roj carbon fibers, ua rau saum npoo. Qhov saum npoo ntxhib no ua rau thaj chaw sib cuag ntawm cov pa roj carbon fiber ntau thiab cov khoom siv substrate, uas txhim kho cov khoom sib txuas ntawm ob. Thaum cov khoom siv matrix sib txuas nrog cov pa roj carbon fiber ntau, nws zoo dua tuaj yeem muab nws tus kheej rau hauv cov qauv ntxhib no, ua kom muaj zog dua.
Kev kho kom ua kom muaj peev xwm qhia tau ntau ntawm cov pab pawg ua haujlwm reactive nyob rau saum npoo ntawm carbon fiber. Cov pab pawg ua haujlwm no tuaj yeem hnov mob chemical nrog cov pab pawg ua haujlwm sib luag hauv cov khoom siv matrix los tsim cov tshuaj sib txuas. Piv txwv li, kev kho oxidation tuaj yeem qhia cov pab pawg hydroxyl, pawg carboxyl thiab lwm pab pawg ua haujlwm ntawm cov pa roj carbon fibers, uas tuaj yeem hnov mob nrog cov pa roj carbon monoxide.epoxypawg nyob rau hauv resin matrix thiab thiaj li nyob rau tsim covalent bonds. Lub zog ntawm cov tshuaj sib txuas no ntau dua li kev sib txuas ntawm lub cev, uas ua rau muaj kev sib raug zoo ntawm kev sib raug zoo ntawm cov carbon fiber thiab cov khoom siv matrix.
Lub zog saum npoo ntawm cov pa roj carbon activated kuj nce ntxiv. Qhov nce ntawm lub zog saum npoo ua rau nws yooj yim dua rau cov pa roj carbon fiber ntau los ntawm cov khoom siv matrix, yog li ua kom yooj yim rau kev sib kis thiab nkag mus ntawm cov khoom siv matrix ntawm cov pa roj carbon fiber ntau. Hauv cov txheej txheem ntawm kev npaj cov khoom sib xyaw, cov khoom siv matrix tuaj yeem muab faib ua ntau qhov sib npaug ntawm cov pa roj carbon fiber ntau los tsim cov qauv ntom ntom. Qhov no tsis tsuas yog txhim kho cov khoom siv ntawm cov khoom sib xyaw, tab sis kuj tseem txhim kho nws cov khoom, xws li corrosion kuj thiab thermal stability.
Activated carbon fibers muaj ntau yam zoo rau kev npaj cov carbon fiber ntau.
Nyob rau hauv cov nqe lus ntawm mechanical zog, lub interfacial bonding zog ntawm lub tshuab txaiscarbon fibersthiab cov khoom siv matrix tau txhim kho zoo heev, uas ua rau cov khoom sib xyaw kom zoo dua kev hloov kev ntxhov siab thaum raug rau sab nraud. Qhov no txhais tau hais tias cov cuab yeej cuab tam ntawm cov khoom sib xyaw xws li lub zog thiab modulus tau txhim kho tau zoo. Piv txwv li, nyob rau hauv lub aerospace teb, uas yuav tsum tau heev heev mechanical zog, aircraft qhov chaw ua los ntawm activated carbon fiber composites muaj peev xwm tiv taus ntau dua ya davhlau loads thiab txhim kho kev nyab xeeb thiab kev cia siab ntawm lub aircraft. Hauv kev ua kis las, xws li tsheb kauj vab thav duab, golf clubs, thiab lwm yam, activated carbon fiber composites tuaj yeem muab lub zog zoo dua thiab nruj, thaum txo qhov hnyav thiab txhim kho cov neeg ncaws pob kev paub.
Nyob rau hauv cov nqe lus ntawm corrosion kuj, vim hais tias cov kev taw qhia ntawm reactive functional pab pawg nyob rau saum npoo ntawm activated carbon fibers, cov functional pab pawg neeg no muaj peev xwm tsim ntau ruaj khov tshuaj sib raug zoo nrog cov khoom matrix, yog li txhim kho corrosion kuj ntawm cov composites. Nyob rau hauv tej yam hnyav ib puag ncig, xws li marine ib puag ncig, tshuaj lom neeg kev lag luam, thiab lwm yam, lub tshuab txaiscarbon fiber ntautuaj yeem tiv thaiv kev yaig ntawm cov xov xwm corrosive thiab txuas ntxiv lub neej kev pab cuam. Qhov no yog qhov tseem ceeb heev rau qee cov khoom siv thiab cov qauv siv nyob rau hauv ib puag ncig hnyav rau lub sijhawm ntev.
Nyob rau hauv cov nqe lus ntawm thermal stability, zoo interfacial bonding ntawm activated carbon fiber thiab matrix cov ntaub ntawv yuav txhim khu lub thermal stability ntawm composites. Nyob rau hauv qhov kub thiab txias ib puag ncig, cov composites tuaj yeem tswj cov khoom zoo dua qub thiab qhov ruaj khov, thiab tsis tshua muaj deformation thiab kev puas tsuaj. Qhov no ua rau cov khoom siv hluav taws xob ua kom muaj zog muaj cov ntawv thov dav dav hauv cov ntawv thov kub kub, xws li tsheb cav qhov chaw thiab aviation cav kub kawg qhov chaw.
Nyob rau hauv cov nqe lus ntawm kev ua tau zoo, cov activated carbon fibers tau nce nto kev ua si thiab zoo compatibility nrog cov khoom matrix. Qhov no ua rau nws yooj yim dua rau cov khoom siv matrix rau infiltrate thiab kho rau ntawm qhov chaw ntawm cov pa roj carbon fiber ntau thaum lub sij hawm npaj cov khoom sib xyaw, yog li txhim kho kev ua haujlwm thiab cov khoom zoo. Nyob rau tib lub sij hawm, lub designability ntawm activated carbon fiber composites kuj yog txhim khu kev qha, tso cai rau lawv mus rau customized rau txawv daim ntawv thov thiab ua tau raws li ntau yam complex engineering yuav tsum tau.
Yog li ntawd, activation kev kho mob ntawmcarbon fibersyog qhov txuas tseem ceeb hauv kev npaj cov kev ua haujlwm siab carbon fiber ntau. Los ntawm kev ua kom muaj kev kho mob, cov qauv ntawm cov pa roj carbon fiber ntau tuaj yeem txhim kho kom lub ntsej muag roughness, qhia cov pab pawg ua haujlwm, thiab txhim kho lub zog saum npoo, txhawm rau txhim kho kev sib txuas ntawm lub zog ntawm cov khoom siv fiber ntau thiab matrix, thiab nteg lub hauv paus. rau kev npaj ntawm carbon fiber composites nrog zoo heev mechanical zog, corrosion kuj, thermal stability thiab kev ua tau zoo. Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis tsis tu ncua, nws ntseeg tias carbon fiber ua kom siv thev naus laus zis yuav txuas ntxiv txhim kho thiab txhim kho, muab kev txhawb zog ntxiv rau kev siv dav ntawm carbon fiber ntau.
Shanghai Orisen Tshiab Material Technology Co., Ltd
M: +86 18683776368 (kuj whatsapp)
T: +86 08383990499
Email: grahamjin@jhcomposites.com
Chaw nyob: NO.398 Tshiab Green Road Xinbang Town Songjiang District, Shanghai
Post lub sij hawm: Sep-04-2024