xov xwm

Kev txhim kho ntawm GFRP yog los ntawm qhov kev thov nce ntxiv rau cov khoom siv tshiab uas ua tau zoo dua, sib dua hauv qhov hnyav, tiv taus xeb dua, thiab txuag hluav taws xob ntau dua. Nrog rau kev txhim kho ntawm kev tshawb fawb txog cov khoom siv thiab kev txhim kho tas mus li ntawm cov thev naus laus zis tsim khoom, GFRP tau maj mam tau txais ntau yam kev siv hauv ntau qhov chaw. GFRP feem ntau muaj xws lifiberglassthiab ib lub matrix resin. Tshwj xeeb, GFRP muaj peb ntu: fiberglass, resin matrix, thiab interfacial agent. Ntawm lawv, fiberglass yog ib feem tseem ceeb ntawm GFRP. Fiberglass yog ua los ntawm kev yaj thiab kos iav, thiab lawv cov khoom tseem ceeb yog silicon dioxide (SiO2). Cov iav fiber muaj qhov zoo ntawm lub zog siab, qis qis, cua sov, thiab corrosion tsis kam los muab lub zog thiab stiffness rau cov khoom. Qhov thib ob, lub resin matrix yog cov nplaum rau GFRP. Cov resin matrices feem ntau siv suav nrog polyester, epoxy, thiab phenolic resins. Resin matrix muaj kev sib txuas zoo, tshuaj lom neeg tsis kam, thiab kev cuam tshuam tsis kam los kho thiab tiv thaiv fiberglass thiab hloov cov khoom thauj. Interfacial agents, ntawm qhov tod tes, ua lub luag haujlwm tseem ceeb ntawm fiberglass thiab resin matrix. Interfacial agents tuaj yeem txhim kho qhov sib txuas ntawm fiberglass thiab resin matrix, thiab txhim kho cov khoom siv kho tshuab thiab kev ruaj khov ntawm GFRP.
Kev tsim cov khoom siv dav dav ntawm GFRP xav tau cov kauj ruam hauv qab no:
(1) Kev npaj fiberglass:Cov khoom siv iav raug cua sov thiab yaj, thiab npaj rau hauv ntau yam duab thiab qhov ntau thiab tsawg ntawm fiberglass los ntawm cov txheej txheem xws li kos duab lossis txau.
(2) Kev kho ua ntej ntawm fiberglass:Kev kho lub cev lossis tshuaj lom neeg ntawm cov fiberglass kom ua rau lawv qhov roughness ntawm qhov chaw thiab txhim kho kev sib txuas ntawm cov interfacial.
(3) Kev npaj ntawm fiberglass:Faib cov fiberglass uas tau kho ua ntej hauv cov khoom siv molding raws li qhov yuav tsum tau tsim los tsim cov qauv fiber uas tau teem tseg ua ntej.
(4) Txheej txheej resin matrix:Txheej cov resin matrix kom sib npaug rau ntawm lub fiberglass, impregnate cov fiber bundles, thiab muab cov fibers sib cuag tag nrho nrog cov resin matrix.
(5) Kev kho kom qhuav:Kho cov resin matrix los ntawm kev ua kom sov, nias, lossis siv cov khoom siv pabcuam (piv txwv li tus neeg sawv cev kho) los tsim cov qauv sib xyaw ua ke muaj zog.
(6) Tom qab kho mob:Cov GFRP uas kho tau lawm yuav raug rau cov txheej txheem tom qab kho xws li kev txiav, txhuam, thiab pleev xim kom ua tiav qhov zoo ntawm qhov chaw thiab qhov tsos.
Los ntawm cov txheej txheem npaj saum toj no, nws tuaj yeem pom tias nyob rau hauv cov txheej txheem ntawmKev tsim khoom GFRP, kev npaj thiab kev teeb tsa ntawm fiberglass tuaj yeem hloov kho raws li cov hom phiaj txheej txheem sib txawv, cov qauv sib txawv rau cov ntawv thov sib txawv, thiab cov txheej txheem tom qab ua tiav sib txawv tuaj yeem siv los ua tiav cov khoom ntawm GFRP rau cov ntawv thov sib txawv. Feem ntau, GFRP feem ntau muaj ntau yam khoom zoo, uas tau piav qhia meej hauv qab no:
(1) Sib dua:GFRP muaj qhov hnyav tshwj xeeb qis dua piv rau cov khoom siv hlau ib txwm muaj, thiab yog li ntawd nws tsis hnyav heev. Qhov no ua rau nws muaj txiaj ntsig zoo hauv ntau qhov chaw, xws li kev tsav dav hlau, tsheb, thiab cov khoom siv kis las, qhov twg qhov hnyav tuag ntawm cov qauv tuaj yeem txo qis, ua rau muaj kev ua tau zoo dua thiab kev siv roj tsawg. Siv rau cov qauv tsev, qhov xwm txheej tsis hnyav ntawm GFRP tuaj yeem txo qhov hnyav ntawm cov tsev siab.
(2) Muaj Zog: Cov ntaub ntawv fiberglass-reinforcedmuaj lub zog siab, tshwj xeeb tshaj yog lawv lub zog tensile thiab flexural. Kev sib xyaw ua ke ntawm cov fiber-reinforced resin matrix thiab fiberglass tuaj yeem tiv taus cov loads loj thiab kev ntxhov siab, yog li cov khoom siv zoo heev hauv cov khoom siv kho tshuab.
(3) Kev tiv thaiv xeb:GFRP muaj kev tiv thaiv xeb zoo heev thiab tsis yooj yim rau cov tshuaj corrosive xws li kua qaub, alkali, thiab dej ntsev. Qhov no ua rau cov khoom siv hauv ntau qhov chaw nyuaj yog qhov zoo heev, xws li hauv kev tsim kho dej hiav txwv, cov khoom siv tshuaj lom neeg, thiab cov thoob dej cia khoom.
(4) Cov khoom rwb thaiv tsev zoo:GFRP muaj cov khoom rwb thaiv tsev zoo thiab tuaj yeem cais tau hluav taws xob thiab thermal conduction. Qhov no ua rau cov khoom siv dav siv hauv kev tsim hluav taws xob thiab thermal isolation, xws li kev tsim cov circuit boards, insulating sleeves, thiab thermal isolation materials.
(5) Kev tiv taus cua sov zoo:GFRP muajua haujlwm kub siabthiab muaj peev xwm tswj tau qhov ua tau zoo ruaj khov hauv qhov chaw kub siab. Qhov no ua rau nws siv dav hauv aerospace, petrochemical, thiab kev tsim hluav taws xob, xws li kev tsim cov hniav roj turbine cav, cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob thermal.
Hauv kev xaus lus, GFRP muaj qhov zoo ntawm lub zog siab, lub teeb yuag, tiv taus corrosion, zoo rwb thaiv tsev, thiab tiv taus kub. Cov yam ntxwv no ua rau nws yog cov khoom siv dav dav hauv kev tsim kho, aerospace, automotive, fais fab, thiab tshuaj lom neeg.