Hauv cov khoom siv sib xyaw, qhov kev ua tau zoo ntawm fiberglass ua lub hauv paus tseem ceeb ntawm kev txhawb nqa feem ntau nyob ntawm qhov muaj peev xwm sib txuas ntawm cov fiber thiab lub matrix. Lub zog ntawm qhov kev sib txuas ntawm cov interfacial no txiav txim siab qhov muaj peev xwm hloov pauv kev ntxhov siab thaum cov iav fiber nyob hauv qab kev thauj khoom, nrog rau qhov ruaj khov ntawm cov iav fiber thaum nws lub zog siab. Feem ntau, qhov kev sib txuas ntawm cov fiberglass thiab cov khoom siv matrix tsis muaj zog heev, uas txwv tsis pub siv fiberglass hauv cov khoom siv sib xyaw ua haujlwm siab. Yog li ntawd, siv cov txheej txheem txheej txheem sizing agent los ua kom zoo dua cov qauv interfacial thiab txhawb nqa qhov kev sib txuas ntawm cov interfacial yog ib txoj hauv kev tseem ceeb los txhim kho kev ua tau zoo ntawm cov iav fiber composites.
Ib tug neeg sawv cev rau kev ntsuas qhov loj me ua ib txheej molecular rau ntawm qhov chaw ntawmfiberglass, uas tuaj yeem txo qhov kev sib txhuam ntawm qhov sib txuas, ua rau qhov chaw fiberglass ntau dua hydrophilic lossis oleophilic los txhim kho kev sib raug zoo nrog lub matrix. Piv txwv li, siv cov neeg sawv cev sizing uas muaj cov pab pawg tshuaj lom neeg tuaj yeem tsim cov tshuaj sib txuas nrog qhov chaw fiberglass, ntxiv txhim kho lub zog sib txuas ntawm qhov sib txuas.
Kev tshawb fawb tau qhia tias cov neeg sawv cev ntsuas qib nano tuaj yeem txheej cov nplaim fiberglass kom sib npaug zoo dua thiab ua kom muaj zog rau kev sib txuas lus ntawm cov fiber thiab lub matrix, yog li ua kom zoo dua cov khoom siv kho tshuab ntawm cov fiber. Tib lub sijhawm, cov tshuaj ntsuas qhov tsim nyog tuaj yeem kho lub zog ntawm cov fiber thiab hloov qhov ntub ntawm cov fiberglass, ua rau muaj kev sib txuas lus zoo ntawm cov fiber thiab cov ntaub ntawv matrix sib txawv.
Cov txheej txheem txheej sib txawv kuj muaj qhov cuam tshuam loj rau kev txhim kho lub zog sib txuas ntawm cov interfacial. Piv txwv li, plasma-assisted coating tuaj yeem siv cov roj ionized los kho coviav fibernto, tshem tawm cov organic teeb meem thiab cov khoom tsis huv, ua rau muaj kev ua haujlwm ntawm qhov chaw, thiab yog li txhim kho kev sib txuas ntawm tus neeg sawv cev rau qhov chaw fiber.
Cov khoom siv matrix nws tus kheej kuj ua lub luag haujlwm tseem ceeb hauv kev sib txuas interfacial. Kev tsim cov qauv matrix tshiab uas muaj kev sib raug zoo ntawm cov iav fibers kho tuaj yeem ua rau muaj kev txhim kho tseem ceeb. Piv txwv li, matrices nrog cov concentration siab ntawm cov pab pawg reactive tuaj yeem tsim cov kev sib txuas covalent muaj zog dua nrog tus neeg sawv cev sizing ntawm qhov chaw fiber. Ntxiv mus, kev hloov kho cov viscosity thiab cov khoom ntws ntawm cov khoom siv matrix tuaj yeem ua kom muaj kev sib xyaw zoo dua ntawm cov fiber bundle, txo cov voids thiab cov qhov tsis zoo ntawm qhov interface, uas yog qhov chaw tsis muaj zog.
Cov txheej txheem tsim khoom nws tus kheej tuaj yeem ua kom zoo dua los txhim kho kev sib txuas ntawm cov interfacial. Cov txheej txheem zoo likev txhaj tshuaj nqus tsevlos yogKev hloov pauv resin (RTM)tuaj yeem ua kom muaj kev sib npaug zoo dua thiab ua kom tiav ntawm qhovcov iav fiberlos ntawm lub matrix, tshem tawm cov hnab cua uas tuaj yeem ua rau lub zog tsis muaj zog. Tsis tas li ntawd, siv lub zog sab nraud lossis siv cov kev tswj kub thaum lub sijhawm kho tuaj yeem txhawb kev sib cuag ntau dua ntawm cov fiber thiab lub matrix, ua rau muaj qib siab dua ntawm kev sib txuas thiab qhov sib txuas muaj zog dua.
Kev txhim kho lub zog sib txuas ntawm cov iav fiber composites yog ib qho tseem ceeb ntawm kev tshawb fawb nrog rau kev siv tau zoo. Txawm hais tias kev siv cov neeg sawv cev ntsuas thiab ntau yam txheej txheem txheej txheem yog lub hauv paus ntawm qhov kev siv zog no, muaj ntau lwm txoj hauv kev uas tau tshawb nrhiav los txhim kho kev ua tau zoo ntxiv.
Lub sijhawm tshaj tawm: Cuaj hlis-04-2025
