Nrog rau txoj kev loj hlob sai nyob rau hauv lub tshav pob ntawm engineered iav fiber reinforced plastics,phenolic resin-raws li cov ntaub ntawvtau siv dav hauv ntau yam kev lag luam. Qhov no yog vim lawv qhov tshwj xeeb zoo, siab mechanical zog, thiab kev ua tau zoo heev. Ib qho ntawm cov ntaub ntawv tseem ceeb tshaj plaws sawv cev yogphenolic iav fiber ntau resin khoom.
Phenolic iav fiber ntau, ntawm qhov ntxov tshaj plaws industrialized hluavtaws resins, feem ntau yog polycondensate tsim los ntawm polymerization ntawm phenols thiab aldehydes nyob rau hauv lub xub ntiag ntawm ib tug alkaline catalyst. Qee cov additives yog tom qab ntawd nkag mus rau kev sib txuas ntawm cov qauv macromolecular, hloov mus rau hauv ib qho insoluble thiab infusible peb-dimensional macromolecular qauv, yog li dhau los ua ib qho kev raug.Cov khoom siv thermosetting polymer. Phenolic resins muaj nuj nqis heev rau lawv cov khoom zoo, nrog rau cov nplaim taws zoo heev, qhov ruaj khov, thiab lub zog zoo txhua yam. Cov cwj pwm no tau nthuav dav kev tshawb fawb thiab kev siv phenolic iav fiber ntau cov ntaub ntawv.
Raws li kev lag luam kev lag luam nce mus sai, kev xav tau nce ntxiv tau muab tso rau ntawm kev ua haujlwm ntawm phenolic iav fiber ntau cov ntaub ntawv. Yog li ntawd,muaj zog thiab kub-resistant hloov phenolic iav fiberstau tsim thiab siv ntau heev.iav fiber reinforced hloov phenolic resin (FX-501)Tam sim no yog ib qho ntawm cov kev hloov pauv zoo tshaj plaws phenolic iav fiber ntau cov ntaub ntawv. Nws yog ib hom tshiab ntawm kev hloov kho thiab txhawb nqa cov khoom siv phenolic tsim los ntawm kev sib xyaw iav fibers rau hauv cov khoom qub matrix los ntawm kev sib xyaw.
Mechanical Properties thiab Constituent Roles
Phenolic iav fiber ntau resinfeem ntau xaiv raws li ib tug matrix rauhnav-resistant, tensile, thiab compressive cov ntaub ntawvvim nws lub zog tensile zoo, hnyav tsis kam, thiab zoo heev txhua yam khoom zoo li nplaim retardancy. Covcov khoom siv matrixFeem ntau ua haujlwm raws li kev sib khi, organically txuas tag nrho cov khoom.iav fibersua lub ntsiab load-bearing units nyob rau hauv hnav-resistant cov ntaub ntawv, muab load-nqa lub peev xwm, thiab lawv superior kev ua tau zoo ncaj qha cuam tshuam rau lub reinforcing nyhuv ntawm matrix.
Lub luag haujlwm ntawm cov khoom siv matrix yog ua kom ruaj khov rau lwm cov khoom ntawm cov khoom tensile, kom ntseeg tau tias cov khoom thauj tau sib npaug, faib, thiab faib rau ntau yam iav fibers. Qhov no imparts ib lub zog thiab toughness rau cov khoom. Cov fibers xws li iav fibers, organic fibers, steel fibers, thiab ntxhia fibers, ua lub luag haujlwm hauv kev kho lub zog tensile ntawm cov khoom.
Load Bearing nyob rau hauv Composites thiab cuam tshuam ntawm Fiber Cov ntsiab lus
In phenolic iav fiber ntau cov khoom sivtshuab,ob obfibers thiab matrix resin dais lub load, nrog iav fibers tshuav tus thawj load-bearer. Thaum phenolic iav fiber ntau yog raug khoov lossis compression kev ntxhov siab, qhov kev ntxhov siab yog sib npaug ntawm cov khoom siv matrix mus rau ib tus neeg iav fibers los ntawm kev sib cuam tshuam, zoo dispersing lub zog yug. Cov txheej txheem no txhim kho cov khoom siv kho tshuab ntawm cov khoom sib xyaw. Yog li ntawd, tsim nyog nce nyob rau hauviav fiber ntau tuaj yeem txhim kho lub zog ntawm phenolic iav fiber ntau sib xyaw.
Cov txiaj ntsig ntawm kev sim qhia cov hauv qab no:
- Phenolic iav fiber ntau nrog 20% iav fiber ntau cov ntsiab lusnthuav tawm tsis sib xws fiber ntau, nrog rau qee qhov chaw txawm tias tsis muaj fibers.
- Phenolic iav fiber ntau nrog 50% iav fiber ntau cov ntsiab lusqhia txog kev faib cov fiber ntau, tsis tu ncua ntawm cov pob txha tawg, thiab tsis muaj cov cim tseem ceeb ntawm cov fiber ntau rub tawm. Qhov no qhia tau hais tias cov iav fibers tuaj yeem sib sau ua lub nra, ua rausiab zog flexural.
- Thaum cov iav fiber ntau yog 70%, cov ntsiab lus fiber ntau dhau ua rau cov ntsiab lus tsis tshua muaj matrix resin. Qhov no tuaj yeem ua rau "cov neeg tsis zoo" tshwm sim hauv qee qhov chaw, cuam tshuam kev hloov pauv kev ntxhov siab thiab tsim kom muaj kev ntxhov siab hauv cheeb tsam. Yog li ntawd, tag nrho txhua yam khoom ntawm phenolic iav fiber ntau cov khoom sivnyiam txo.
Los ntawm cov kev tshawb pom no, lubQhov siab tshaj plaws pub ntxiv ntawm iav fiber ntau hauv phenolic iav fiber ntau yog 50%.
Kev ua tau zoo thiab muaj kev cuam tshuam cov yam ntxwv
Los ntawm cov ntaub ntawv tus lej,phenolic iav fiber ntau compositesmuaj 50% iav fiber ntaunthuav tawm kwv yees lipeb zaug lub zog flexuralthiabplaub zaug compressive zogpiv rau cov ntshiab phenolic resin. Tsis tas li ntawd, lwm yam cuam tshuam rau lub zog ntawm phenolic iav fiber reinforced plastics suav nrogntev ntawm cov iav fibersthiab lawvkev taw qhia.
Post lub sij hawm: Jun-18-2025
