Dab tsi yog FRP Material？

Fiber ntau ntxiv polyumer (FRP) yog tsim los ntawm yas polymer cob (yas polymer cob) thiab reinforcing fiber. Tom qab ob cov ntaub ntawv tau muab tso ua ke rau hauv FRP, nws tsis tuaj yeem tsuas yog tswj cov yam ntxwv ntawm nws cov khoom qub, Nws tseem ntxiv dag zog rau kev ua tiav tag nrho ntawm FRP, zoo heev txhim kho lub zog thiab kev coj nruj ntawm cov khoom tshiab.

Cov cob polymer feem ntau lo thiab yooj yim tuaj pwm, tab sis lawv cov tawv yog qhov tsis muaj zog. Cov ntaub nplaum uas muaj nyob hauv cov khoom tuaj yeem tiv thaiv cov khoom los ntawm kev puas tsuaj thiab tiv thaiv nws saum npoo los ntawm tshuaj lom neeg xeb. Tsis tas li ntawd xwb, cov khoom siv kuj tseem siv tau ua cov lus qhia txhawb rau cov xov paj khov.

Vim tias lub zog siab thiab kev ntxhib los mos teeb pom kev zoo, FRP cov khoom siv sib xyaw tau siv dav hauv kev tiv thaiv, aviation thiab lwm cov teb. Xyoo tsis ntev los no, ntau daim ntawv thov ntawm cov khoom siv no tau nthuav dav ntxiv, thiab nws tau siv los tsim cov tsheb zoo nkauj, cua tshuab, cua lub zog ntim cov roj tsheb thiab lwm yam khoom siv. Cov neeg tsim khoom loj kuj nyiam FRP vim tias nws lub teeb yuag, lub zog loj, thiab kev coj tus nqi. Nws yog cov khoom siv lub teeb pom kev zoo thiab tseem tuaj yeem txuag lub zog thaum lub sijhawm kev thauj mus los. Tsis tas li ntawd xwb, vim nws lub zog, kav ntev thiab cov qauv hauv tshuaj lom neeg, FRP pib siv rau cov khoom siv khoom, vaj tsev thiab lwm yam kev tsim kho.

▶ FRP ua kom cov khoom lag luam tsim tawm

Cov txheej txheem kev tsim tawm ntawm FRP cov ntaub ntawv khoom siv yuav tsum muaj ntau ntawm kev kub thiab siab kom ua tiav qhov sib koom ua ke ntawm cov ntaub ntawv sib xyaw.

Preparation Kev npaj fiber ntau

Rau kev tsim cov pa roj carbon fiber ntau thiab iav fiber ntau FRP, qhov kub thiab txias zoo yog qhov tseem ceeb. Cov pa roj carbon fiber tuaj yeem ua los ntawm kev ua kom cov roj carbon polyacrylonitrile fiber ntau, cov suab, ua kom muaj fiber ntau, viscose fiber lossis phenolic fiber. Kev tsim cov khoom siv carbon fiber suav nrog plaub txheej txheem: fiber ntau kiv, thermal stabilization (ua ntej oxidation), carbonization, thiab graphitization. Cov kev hloov pauv tshuaj lom neeg muaj xws li ua kom lub cev qhuav dej, ua voj voog, ua ntej oxidation, oxidation, thiab deoxidation. Nws tau ua rau" dawb fiber ntau" los ntawm hauv cov pa kub kub, thiab tom qab ntawd ua rau" dub fiber" tom qab oxidation thiab carbonization. Cov iav fiber yog tsim los ntawm cov cua kub kub dhau los ntawm kev kub-siab melting, kos duab, winding, weaving thiab lwm cov txheej txheem, nyob ntawm seb cov kev xav tau tshwj xeeb ntawm cov khoom lag luam.

▶ Kev tsim tawm ntawm qhov chaw

Tam sim no, muaj ntau txoj hauv kev los tsim thiab tsim cov khoom ua los ntawm FRP cov ntaub ntawv sib xyaw. Feem ntau, ua ntej lossis thaum ua cov ntu, cov xov ntxiv kom muaj zog nrog cov polymers, thiab tom qab ntawd ces muab tso rau hauv pwm, thiab cov seem tau ua rau cov duab kawg los ntawm txheej txheej thiab ua kom sov. Rau qee qhov chaw nrog ntau cov npoo thiab cov ces kaum thiab ntau cov duab ua cov nyom, cov fiber thiab yas tuaj yeem muab tso rau hauv lub qhov ntawm cov pwm, nyem rau hauv cov khoom siv raw, thiab tom qab ntawd ua kom sov. Rau cov kav dej thiab lwm cov khoom ua haujlwm ntev, cov kab xo thiab cov yas tuaj yeem txuas nrog kev tuag thiab kho ntawm qhov kub.

Application Daim ntawv thov khoom siv

Yog hais tias cov txheej txheem npaj tau zoo dua, cov nqi tsim thiab cov zog ntawm FRP cov khoom siv kuj tseem yuav raug txo kom tsawg. Nws yog dav siv hauv ntau cov ntawv thov kom ua tiav lub zog txuag thiab txhim kho lub zog.

Tsheb: Rau qhov kev lag luam tsheb, uas yog sib zog ua kom tau qhov hnyav, cov khoom siv no tseem ceeb heev. Nws tuaj yeem txhim kho lub zog siv hluav taws xob thiab roj kev lag luam ntawm lub tsheb, thaum tseem ua tau raws li cov qauv kev nyab xeeb. Yog hais tias lub tsheb ua tiav nce 10% txo qhov hnyav, nws cov roj tsheb kev lag luam yuav nce li ntawm 6-8%, uas yog sib npaug los txuas kev caij nkoj ntawm cov hluav taws xob tsheb ntshiab yog 10%. Piv nrog cov tsoos steel, FRP iav fiber ntau tuaj yeem txo qhov ntau los ntawm 25-30%, thaum cov khoom siv carbon fiber ntau tuaj yeem txo qhov ntau los ntawm 60-70%.

Cua tus cua: Cov FRP carbon fiber cov khoom siv sib xyaw muaj lub siab hardness, lub teeb nyhav thiab lub zog qaug zog tsis kam. Nws tuaj yeem txo qhov hnyav ntawm lub zog ntawm cov hniav thiab txuas ntxiv ntawm qhov ntev ntawm lub ntsej muag, thiaj li txhim kho lub zog ntawm lub zog ntawm cov cua tsim hluav taws xob. Raws li xyoo 2018, cov chaw tsim hluav taws xob cua yuav dhau los ua cov neeg tau txais kev pab ntau tshaj ntawm FRP carbon fiber ntau cov khoom siv.

Compressed ntuj tso kua roj tso tsheb hlau luam: Cov tso tsheb hlau luam tso rau siv hauv tsheb yuav tsum muaj lub teeb nrig thiab lub zog loj, thiab tuaj yeem khaws hydrogen thiab roj av. Txawm hais tias FRP carbon fiber ntau cov khoom siv ua tau raws li qhov yuav tsum tau ua hauv lub tsheb cia tso tsheb hlau luam thiab siab-siab tso tsheb hlau luam hydrogen, nws tus nqi yog siab heev.

Cov khoom siv khoom siv: Vim tias qhov muaj zog tiv thaiv ntawm no ntawm cov khoom siv sib xyaw, nws tuaj yeem txhim kho cov kev ua tau zoo ntawm cov khoom siv thiab cov khoom siv. Cov khoom siv no tuaj yeem txhim kho kev ua haujlwm ntawm cov cua kub hloov pauv, kiv cua, tshuab tshuab thiab lwm yam khoom siv, tuaj yeem tiv taus qhov kub thiab txias, ua lub neej ntev kev pab cuam ntawm cov kav dej thiab chaw tso tsheb hlau luam, thiab txhim kho hluav taws xob rwb thaiv tsev ntawm cov cuab yeej siv.

Vim tias muaj kev ua tau zoo ntawm cov khoom siv, lwm yam kev lag luam thiab cov khoom siv sib thooj xws li kev tsim kho, txoj hauv kev thiab cov txuas hniav, cov nkoj hauv hiav txwv, thiab cov xaim hluav taws xob muaj peev xwm tau txais txiaj ntsig.