Nrog rau kev loj hlob sai hauv thaj chaw ntawm cov iav fiber reinforced plastics,Cov ntaub ntawv raws li phenolic resintau siv dav thoob plaws ntau yam lag luam. Qhov no yog vim lawv qhov zoo tshwj xeeb, lub zog siab, thiab kev ua tau zoo heev. Ib qho ntawm cov ntaub ntawv sawv cev tseem ceeb tshaj plaws yogCov khoom siv phenolic iav fiber resin.
Phenolic iav fiber, ntawm cov khoom siv hluavtaws thaum ub tshaj plaws, feem ntau yog polycondensate tsim los ntawm kev sib xyaw ntawm phenols thiab aldehydes nyob rau hauv qhov muaj cov tshuaj alkaline catalyst. Qee cov khoom ntxiv tom qab ntawd raug qhia kom hla-txuas cov qauv macromolecular, hloov nws mus rau hauv cov qauv macromolecular peb-seem uas tsis yaj thiab tsis yaj, yog li ua ib qho qauv ib txwm muajCov khoom siv thermosetting polymerCov phenolic resins muaj nqis heev rau lawv cov khoom zoo heev, suav nrog kev tiv taus hluav taws zoo heev, kev ruaj khov ntawm qhov ntev, thiab lub zog zoo. Cov cwj pwm no tau txhawb nqa kev tshawb fawb dav dav thiab kev siv cov khoom siv phenolic iav fiber resin.
Raws li kev lag luam kev lag luam nce qib sai sai, kev thov kom muaj kev ua tau zoo ntawm cov khoom siv phenolic iav fiber ntau ntxiv. Yog li ntawd,cov iav fiber phenolic uas muaj zog thiab tiv taus cua sovtab tom raug tsim kho thiab siv ntau heev.Cov iav fiber reinforced hloov kho phenolic resin (FX-501)Tam sim no yog ib qho ntawm cov khoom siv phenolic iav fiber ntau uas tau hloov kho zoo tshaj plaws. Nws yog ib hom khoom siv phenolic tshiab uas tau hloov kho thiab muaj zog uas tsim los ntawm kev sib xyaw cov iav fibers rau hauv cov resin matrix qub los ntawm kev sib tov.
Cov Khoom Siv Kho Tshuab thiab Lub Luag Haujlwm Tseem Ceeb
Phenolic iav fiber resinfeem ntau raug xaiv ua ib lub matrix raucov ntaub ntawv uas tiv taus kev hnav, tensile, thiab compressivevim nws lub zog tensile zoo, tiv taus cov kuab tshuaj, thiab cov khoom siv kho tshuab zoo heev xws li nplaim taws retardancy.cov khoom siv matrixfeem ntau ua haujlwm ua ib qho binder, organically txuas txhua yam khoom.Cov iav fiberua haujlwm ua cov khoom siv thauj khoom tseem ceeb hauv cov ntaub ntawv uas tiv taus kev hnav, muab lub peev xwm nqa khoom, thiab lawv cov kev ua tau zoo tshaj plaws cuam tshuam ncaj qha rau qhov cuam tshuam ntawm lub matrix.
Lub luag haujlwm ntawm cov khoom siv matrix yog los khi lwm cov khoom ntawm cov khoom siv tensile kom ruaj khov, xyuas kom meej tias cov khoom thauj tau hloov pauv, faib tawm, thiab faib rau ntau yam iav fibers. Qhov no muab qee lub zog thiab kev tawv rau cov khoom siv. Cov fibers feem ntau, suav nrog cov iav fibers, cov organic fibers, cov hlau fibers, thiab cov mineral fibers, ua lub luag haujlwm hauv kev kho lub zog tensile ntawm cov khoom siv.
Kev Thauj Khoom Hauv Cov Khoom Sib Xyaws Thiab Kev Cuam Tshuam ntawm Cov Khoom Siv Fiber
In Cov khoom siv phenolic iav fiber sib xyawcov txheej txheem, ob qho tib sicov fibers thiab cov matrix resin dais lub nra hnyav, nrog cov iav fibers tseem yog tus thawj coj thauj khoom. Thaum cov khoom siv phenolic iav fiber composites raug kev nyuaj siab lossis kev ntxhov siab, qhov kev ntxhov siab raug hloov pauv los ntawm cov matrix resin mus rau cov iav fibers ib leeg los ntawm qhov interface, ua kom lub zog borne zoo. Cov txheej txheem no txhim kho cov khoom siv kho tshuab ntawm cov khoom sib xyaw. Yog li ntawd, kev nce ntxiv tsim nyog hauvCov ntsiab lus ntawm cov iav fiber tuaj yeem txhim kho lub zog ntawm cov phenolic iav fiber composites.
Cov txiaj ntsig ntawm kev sim qhia tau hais tias:
- Phenolic iav fiber composites nrog 20% iav fiber cov ntsiab lusqhia txog kev faib cov fiber tsis sib xws, nrog rau qee qhov chaw txawm tias tsis muaj fibers.
- Phenolic iav fiber composites nrog 50% iav fiber cov ntsiab lusqhia txog kev faib cov fiber sib npaug, qhov chaw tawg tsis sib xws, thiab tsis muaj cov cim qhia tseem ceeb ntawm kev rub tawm ntawm cov fiber ntau. Qhov no qhia tau hais tias cov iav fiber tuaj yeem dais lub nra hnyav ua ke, ua raulub zog flexural siab dua.
- Thaum cov iav fiber ntau yog 70%, cov fiber ntau dhau ua rau cov matrix resin cov ntsiab lus qis dua. Qhov no tuaj yeem ua rau muaj "resin-poor" phenomena hauv qee thaj chaw, cuam tshuam kev hloov pauv kev ntxhov siab thiab tsim cov kev ntxhov siab hauv zos. Yog li ntawd, tag nrho cov khoom siv kho tshuab ntawm cov khoom siv phenolic iav fiber compositefeem ntau yuav txo qis.
Los ntawm cov kev tshawb pom no, covQhov siab tshaj plaws uas tso cai ntxiv cov iav fiber hauv cov phenolic iav fiber composites yog 50%.
Kev Txhim Kho Kev Ua Haujlwm thiab Cov Yam Uas Cuam Tshuam
Los ntawm cov ntaub ntawv lej,phenolic iav fiber compositesmuaj 50% iav fiberqhia txog kwv yees lipeb zaug lub zog flexuralthiabplaub npaug ntawm lub zog compressivepiv rau cov phenolic resin ntshiab. Tsis tas li ntawd, lwm yam uas cuam tshuam rau lub zog ntawm phenolic iav fiber reinforced plastics suav nrogqhov ntev ntawm cov iav fibersthiab lawv covkev taw qhia.
Lub sijhawm tshaj tawm: Lub Rau Hli-18-2025
