Cov ntaub ntawv fiber yog cov ntaub ntawv uas muaj cov qauv tsim los ntawm kev ua cov ntaub los ntawm cov khoom siv fibrous, thiab lawv muaj cov qauv sib txawv heev. Tsis zoo li cov xov xwm txuas ntxiv mus tas li, cov ntaub ntawv fiber muaj ntau qhov sib txuas ntawm cov fibers thiab ntawm cov fibers thiab huab cua. Cov kev sib txuas ntawm cov fibers yog xoob heev, ua rau muaj qhov sib txawv ntawm elasticity. Cov qhov hws hauv cov ntaub ntawv fiber yog cov qhov tsis muaj dab tsi tsim los ntawm cov fibers; cov no yog txhua qhov los ntawm-qhov hws, ua rau muaj qhov porosity zoo heev. Cov fibers yog ib daim ntawv ntawm cov ntaub ntawv nrog qhov sib piv siab heev thiab cov kab uas hla me me, ua rau lawv yooj yim khoov thiab deformation. Yog li ntawd, cov ntaub ntawv fiber muaj kev ywj pheej heev thiab qhia txog kev hloov pauv zoo heev.
Cov Carbon Fibers Ua Haujlwm Zoo thiab Lawv Cov Composites
Cov roj carbon fiber, feem ntau hu ua "vaj ntxwv ntawm cov ntaub ntawv sib dua," muab cov khoom siv carbon muaj zog nrog rau kev yooj ywm thiab kev ua haujlwm ntawm cov ntaub ntawv textile. Cov roj carbon fiber feem ntau muaj txoj kab uas hla ntawm 5-7 micrometers - kwv yees li ib feem kaum ntawm cov plaub hau tib neeg. Lawv qhov ceev yog tsawg dua ib feem plaub ntawm cov hlau, tsis tau lawv lub zog yog 5-7 npaug ntawm cov hlau thiab ntau dua plaub npaug ntawm cov hlau txhuas. Tsis tas li ntawd, lawv muaj cov khoom xws li kev tiv taus kub siab, kev tiv taus hnav, kev ua kom sov, thiab kev tiv taus corrosion. Piv rau cov khoom siv aluminium alloy, cov khoom sib xyaw carbon fiber tuaj yeem ua tiav qhov hnyav txo ntawm 20% txog 40%; piv rau cov khoom siv hlau, lawv tuaj yeem ua tiav qhov hnyav txo ntawm 60% txog 80%.
Cov roj carbon fiber feem ntau yog siv ua cov khoom siv txhawb zog hauv cov khoom sib xyaw nrog cov resins, hlau, ceramics, thiab carbon los tsim cov khoom siv sib xyaw ua ke siab heev. Cov khoom siv sib xyaw ua ke epoxy uas muaj roj carbon fiber txhawb zog muaj lub zog tshwj xeeb thiab modulus tshwj xeeb tshaj plaws ntawm cov khoom siv engineering uas twb muaj lawm.
Cov Khoom Siv Para-Aramid Uas Muaj Kev Ua Haujlwm Zoo Thiab Lawv Cov Khoom Sib Xyaws
Para-aramid fiber (PPTA) yog ib yam khoom siv tseem ceeb heev. Nws lub zog yog 5-6 npaug ntawm cov hlau hlau, nws cov modulus tshwj xeeb yog 2-3 npaug ntawm cov hlau lossis iav fiber, thiab nws cov tawv yog ob npaug ntawm cov hlau, thaum nws qhov hnyav tsuas yog li ib feem tsib ntawm cov hlau.
Nws ua haujlwm ua cov khoom siv thauj khoom thiab ua cov khoom siv ua haujlwm rau kev tiv thaiv cua sov, kev tiv thaiv ablation, thiab kev tiv thaiv corrosion. Tam sim no nws yog ib qho ntawm cov organic fibers nrog qhov loj tshaj plaws thoob ntiaj teb, muab cov khoom zoo heev xws li siab modulus, siab zog, kub kub, acid thiab alkali tsis kam, thiab lub teeb yuag.
Cov fibers para-aramid ua tau zoo thiab lawv cov khoom sib xyaw feem ntau yog siv rau hauv kev txhawb nqa fiber ntau, kev lag luam tsheb, aerospace, khoom siv hluav taws xob, kev thauj mus los ntawm tsheb ciav hlau, kev tiv thaiv tub rog, khoom siv kis las, thiab cov khoom siv hluav taws xob tshiab.
Cov Polyethylene Fibers Uas Muaj Molecular Weight Siab Heev Thiab Lawv Cov Composites
Cov fibers ultra-high molecular weight polyethylene (UHMWPE), tseem hu ua high-strength, high-modulus polyethylene fibers, feem ntau yog hais txog cov fibers spinn los ntawm ultra-high molecular weight polyethylene resins nrog molecular weights xws li 1 lab txog 5 lab.
Cov fibers UHMWPE yog dawb hauv qhov tsos thiab muaj qhov ceev ntawm 0.97–0.98 g / cm³. Tam sim no lawv tuav lub ntiaj teb lub zog tshwj xeeb siab tshaj plaws thiab cov modulus tshwj xeeb, ua rau lawv yog tiam thib peb ntawm cov fibers ua tau zoo tom qab carbon fiber thiab aramid, nrog rau cov fiber ua tau zoo nrog qhov ceev qis tshaj plaws. Los ntawm kev tsim cov ntaub UD (ntaub unidirectional), cov xov paj coated, cov xov paj composite, cov hlua thiab cov nets, thiab cov ntaub woven, lawv tau siv dav hauv ntau qhov chaw xws li cov khoom siv tub rog, kev lag luam marine, kev tiv thaiv kev nyab xeeb, textiles, cov khoom siv kis las, kev siv kho mob, thiab kev tsim kho.
Tsav los ntawm kev txhim kho thoob ntiaj teb geopolitical thiab kev paub txog kev ruaj ntseg hauv tebchaws ntau ntxiv, kev lag luam xws li cov khoom siv tub rog thiab kev tiv thaiv kev nyab xeeb tau loj hlob sai, ua rau muaj kev thov thoob ntiaj teb rau cov fibers UHMWPE uas muaj zog thiab ua tau zoo.
Cov Khoom Siv Basalt Fiber Uas Muaj Zog
Basalt fiber (BF) muaj lub zog siab thiab tawv, tiv taus kub thiab xeb, thiab kuj tsis hnyav. Piv rau lwm cov ntaub ntawv sib xyaw, nws yog biodegradable, tsis muaj tshuaj lom, thiab tus phooj ywg ib puag ncig, khwv tau nws lub koob npe nrov ua "cov khoom siv kev lag luam ntsuab" ntawm lub xyoo pua 21st. Nws muaj txiaj ntsig zoo rau kev siv hauv cov lag luam xws li aerospace, kev tiv thaiv, thiab kev thauj mus los ntawm txoj kev.
Lub sijhawm tshaj tawm: Plaub Hlis-03-2026
