Kev faib khoom ntawm iav fiber ntau

Raws li cov duab thiab ntev, iav fiber ntau tuaj yeem muab faib ua fiber ntau txuas ntxiv, ruaj khov ntev fiber ntau thiab iav ntaub plaub; Raws li iav muaj pes tsawg leeg, nws tuaj yeem muab faib ua alkali dawb, tshuaj tiv thaiv, siab alkali, nruab nrab alkali, siab zog, siab elastic modulus thiab alkali resistant (alkali resistant) iav fibers.
Cov ntaub ntawv tseem ceeb rau kev tsim cov iav fiber ntau yog: quartz xuab zeb, alumina thiab pyrophyllite, limestone, dolomite, boric acid, dej qab zib tshauv, mirabilite, fluorite, thiab lwm yam. Cov txheej txheem ntau lawm tuaj yeem faib ua ob pawg: ib qho ncaj qha ua. molten iav rau hauv fibers; Ib qho yog ua kom cov iav molten rau hauv lub khob iav los yog pas nrig nrog txoj kab uas hla ntawm 20 hli, thiab tom qab ntawd kub thiab rov ua kom nws nyob rau hauv ntau txoj kev los ua rau hauv lub khob iav los yog pas nrig nrog txoj kab uas hla ntawm 3-80 μ M ntawm heev. fibers zoo. Lub infinitely ntev fiber ntau kos los ntawm mechanical drawing method los ntawm platinum alloy phaj yog hu ua nruam iav fiber, uas feem ntau hu ua ntev fiber. Cov fiber ntau discontinuous ua los ntawm cov menyuam los yog cua ntws yog hu ua ntev iav fiber ntau, los yog luv fiber ntau.
Cov iav fiber ntau tuaj yeem muab faib ua qib sib txawv raws li nws muaj pes tsawg leeg, xwm thiab siv. Raws li tus qauv qib, Class E iav fiber ntau yog cov khoom siv hluav taws xob siv hluav taws xob ntau tshaj plaws; Class S yog cov fiber tshwj xeeb.
E-iav
Kuj hu ua alkali dawb iav, nws yog iav borosilicate. Tam sim no, nws yog feem ntau siv iav fiber ntau nrog iav muaj pes tsawg leeg, uas muaj cov khoom siv hluav taws xob zoo thiab cov khoom siv kho tshuab. Nws yog dav siv nyob rau hauv zus tau tej cov iav fiber rau hluav taws xob rwb thaiv tsev, thiab kuj lug siv nyob rau hauv zus tau tej cov iav fiber rau iav fiber reinforced plastics. Nws qhov tsis zoo yog tias nws yooj yim rau eroded los ntawm inorganic acid, yog li nws tsis haum rau siv nyob rau hauv acidic ib puag ncig.
C-iav
Kuj hu ua nruab nrab alkali iav, nws yog tus cwj pwm los ntawm nws cov tshuaj tiv thaiv, tshwj xeeb tshaj yog nws cov kua qaub tsis kam, zoo dua li cov iav uas tsis yog alkali, tab sis nws cov hluav taws xob ua haujlwm tsis zoo, thiab nws lub zog txhua yam yog 10 feem pua ​​~ 20 feem pua ​​​​qis dua li cov uas tsis yog. alkali iav fiber ntau. Feem ntau, txawv teb chaws nruab nrab alkali iav fiber ntau muaj qee yam ntawm boron trioxide, thaum lub sij hawm nruab nrab alkali iav fiber ntau tsis muaj boron txhua. Hauv cov teb chaws txawv teb chaws, nruab nrab alkali fiberglass tsuas yog siv los tsim cov khoom siv fiberglass corrosion-resistant, xws li fiberglass nto, thiab tseem siv los ntxiv dag zog rau cov ntaub ntawv asphalt vov tsev. Txawm li cas los xij, nyob rau hauv Suav teb, nruab nrab alkali fiberglass tso nyiaj rau ntau tshaj ib nrab (60 feem pua) ntawm cov zis fiberglass, thiab yog dav siv rau lub reinforcement ntawm fiberglass thiab zus tau tej cov lim fabrics, wrapping fabrics, thiab lwm yam vim hais tias nws cov nqi qis dua. uas ntawm alkali dawb fiberglass, nws muaj zog kev sib tw.
Siab zog iav fiber ntau
Nws yog tus cwj pwm los ntawm lub zog siab thiab siab modulus. Nws lub zog tensile ntawm ib fiber ntau yog 2800MPa, li ntawm 25 feem pua ​​​​siab dua li ntawm alkali dawb iav fiber ntau, thiab nws elastic modulus yog 86000MPa, siab dua li ntawm E-iav fiber. Cov khoom siv fiberglass tsim nrog lawv feem ntau yog siv hauv kev lag luam tub rog, qhov chaw, cov khoom siv phom sij thiab cov khoom ua si. Txawm li cas los xij, vim tus nqi siab, nws tsis tuaj yeem nrov hauv kev siv pej xeem, thiab cov khoom siv thoob ntiaj teb tsuas yog kwv yees li ob peb txhiab tons.
AR iav fiber ntau
Kuj hu ua alkali resistant iav fiber, alkali resistant iav fiber yog cov khoom siv ntawm iav fiber reinforced (cement) pob zeb (GRC luv luv), yog 100 feem pua ​​​​inorganic fiber, thiab yog ib qho zoo tagnrho hloov rau hlau thiab asbestos nyob rau hauv uas tsis yog bearing cement Cheebtsam. Alkali resistant iav fiber ntau yog tus cwj pwm los ntawm kev ua haujlwm zoo alkali, ua haujlwm zoo rau kev yaig ntawm cov khoom alkali siab hauv cov cement, muaj zog tuav, siab elastic modulus, cuam tshuam tsis kam, tensile zog, khoov lub zog, muaj zog incombustibility, Frost tsis kam, kub tsis kam, av noo hloov. , zoo heev tawg kuj thiab impermeability, muaj zog designability, yooj yim molding, thiab lwm yam, Alkali resistant iav fiber yog ib yam tshiab ntawm ntsuab thiab ib puag ncig-phooj ywg cov khoom siv lug siv nyob rau hauv high-kev ua tau zoo reinforced (cement) pob zeb.
Ib khob
Kuj hu ua siab alkali iav, nws yog ib qho tshuaj sodium silicate iav, uas tsis tshua muaj siv los tsim cov iav fiber ntau vim nws cov dej tsis zoo.
E-CR iav
Nws yog ib qho kev txhim kho boron dawb thiab alkali dawb iav, uas yog siv los tsim cov iav fiber ntau nrog cov kua qaub zoo thiab dej tsis kam. Nws cov dej tsis kam yog 7-8 zaus zoo dua li ntawm alkali dawb iav fiber ntau, thiab nws cov kua qaub kuj tseem zoo dua li ntawm nruab nrab alkali iav fiber ntau. Nws yog ntau yam tshiab tshwj xeeb tsim rau cov kav dej hauv av, cov tso tsheb hlau luam, thiab lwm yam.
D iav
Kuj hu ua low dielectric iav, nws yog siv los tsim cov iav uas tsis muaj dielectric nrog zoo dielectric zog.
Ntxiv rau cov iav fiber ntau saum toj no, muaj ib qho tshiab alkali dawb iav fiber ntau, uas yog boron dawb kiag li, yog li txo cov pa phem ib puag ncig, tab sis nws cov hluav taws xob rwb thaiv tsev thiab cov khoom siv kho tshuab zoo ib yam li cov iav E. Tsis tas li ntawd, muaj ib hom iav fiber ntau nrog ob lub iav iav, uas tau siv los ua cov iav ntaub plaub. Nws tau hais tias nws muaj peev xwm siv tau los ua FRP kev txhawb zog. Tsis tas li ntawd, muaj fluorine dawb iav fiber ntau, uas yog ib qho kev txhim kho alkali dawb iav fiber ntau tsim los rau ib puag ncig.
Txheeb xyuas qhov siab alkali iav fiber ntau
Txoj kev sim yooj yim yog muab cov fiber ntau tso rau hauv dej npau thiab boil rau 6-7h. Yog hais tias nws yog alkali iav nitrate fiber ntau, warp thiab weft fibers yuav xoob tom qab boiling. Raws li cov qauv sib txawv, muaj ntau txoj hauv kev rau cov iav fibers, uas feem ntau muab faib los ntawm qhov kev xav ntawm qhov ntev thiab txoj kab uas hla, muaj pes tsawg leeg thiab kev ua tau zoo.