Basalt Fiber yog dab tsi?
Basalt fiber yog ib qho txuas ntxiv fiber ntau ua los ntawm ntuj basalt pob zeb ua cov khoom siv tseem ceeb.Tom qab melting ntawm 1450-1500 ℃, nws yog kos los ntawm platinum-rhodium alloy kos duab bushing ntawm kev kub ceev.Cov xim feem ntau yog xim av thiab muaj xim hlau nplaum.Nws yog tsim los ntawm oxides xws li silicon dioxide, aluminium oxide, calcium oxide, magnesium oxide, hlau oxide thiab titanium dioxide.Basalt fiber muaj ntau yam zoo heev xws li lub zog siab, hluav taws xob rwb thaiv tsev, corrosion kuj, kub tsis kam, tiv thaiv kev laus, thiab lwm yam, thiab nws muaj kev sib raug zoo nrog ib puag ncig thiab tsis tsim cov pa phem thib ob.Yog li ntawd, nws yog ib tug veritable ntsuab high-kev ua tau zoo tshiab ib puag ncig tiv thaiv khoom.
kuv lub teb chaws tau teev cov basalt fiber ntau yog ib qho ntawm plaub fibers loj (carbon fiber, aramid fiber, ultra-high molecular hnyav polyethylene, basalt fiber) rau txoj kev loj hlob tseem ceeb.Cov kev xav tau ntawm aviation thiab lwm yam kev lag luam muaj kev thov dav dav.
Kev tsim cov txheej txheem ntawm basalt fiber
Lub ntuj basalt pob zeb tsim los ntawm volcanic eruption yog siv los ua raw khoom, crushed thiab muab tso rau hauv lub melting rauv, rhuab mus rau lub molten lub xeev ntawm 1450 ~ 1500 ° C, thiab sai sai kos los ntawm ib tug platinum-rhodium alloy hlau daim duab bushing, thiab basalt fiber. yog tsim nyob rau hauv no txoj kev.
Nyob rau hauv luv luv, tus txheej txheem ntawm ua basalt fiber yog "kos" lub pob zeb volcanic basalt nyuaj rau hauv lo lo ntxhuav ntawm kub.
Txoj kab uas hla ntawm basalt fiber ntau tsim los ntawm cov cuab yeej uas twb muaj lawm tuaj yeem ncav cuag 6 ~ 13μm, uas yog nyias dua li cov plaub hau.
Nws cov txheej txheem ntau lawm yog qhia hauv daim duab hauv qab no.
Molten Magma
Kev kos duab
Raws li cov khoom siv amorphous inorganic silicate, basalt fiber muaj lub sijhawm luv luv, cov txheej txheem yooj yim, tsis muaj dej khib nyiab thiab cov pa phem, thiab cov nqi ntxiv.Nws yog lub npe hu ua "cov khoom tshiab ntsuab" nyob rau xyoo pua 21st.
Kev ua tau zoo ntawm basalt fiber ntau
Lub ntuj ntshiab tsis tu ncua basalt fibers yog golden nyob rau hauv cov xim thiab tshwm raws li cov thooj voos kheej kheej du nrog ib tug zoo kawg nkaus ncig hla ntu.Basalt Fiber muaj qhov ntom ntom ntom thiab siab tawv, yog li nws tau hnav tau zoo heev thiab lub zog tensile.Basalt fiber yog ib qho amorphous, thiab nws qhov kev pabcuam kub feem ntau yog -269 ~ 700 ° C (qhov muag muag yog 960 ° C).Nws yog acid thiab alkali resistant, muaj zog UV kuj, tsis tshua muaj hygroscopicity, thiab zoo ib puag ncig kuj.Tsis tas li ntawd, nws muaj qhov zoo ntawm cov rwb thaiv tsev zoo, kev kub siab filterability, hluav taws xob tiv thaiv thiab zoo yoj permeability, thermal shock stability, ib puag ncig huv thiab zoo heev piv ntawm cov qauv kev ua tau zoo rau cov qauv zoo.
Cov khoom siv txaus txaus
Basalt fiber yog tsim los ntawm kev kos duab tom qab melting basalt ore, thiab cov reserves ntawm basalt ore nyob rau hauv lub ntiaj teb thiab lub hli yog lub hom phiaj heev, thiab tus nqi ntawm raw cov ntaub ntawv kuj tsawg.
Environmentally Friendly Materials
Basalt ore yog cov khoom siv ntuj tsim, tsis muaj boron lossis lwm yam alkali hlau oxides raug tso tawm thaum lub sij hawm tsim khoom, yog li tsis muaj cov khoom tsis zoo los nag hauv cov pa luam yeeb thiab plua plav, thiab nws yuav tsis ua rau huab cua phem.Ntxiv mus, cov khoom muaj lub neej ntev kev pab cuam, yog li nws yog ib hom tshiab ntawm ntsuab active ib puag ncig tiv thaiv cov ntaub ntawv uas tsis muaj nqi, kev ua tau zoo thiab zoo tagnrho huv si.
Kub kub thiab dej tsis kam
Kev khiav hauj lwm kub ntawm cov basalt fiber ntau txuas ntxiv yog feem ntau -269 ~ 700 ° C (mos taw tes yog 960 ° C), thaum lub iav fiber ntau yog -60 ~ 450 ° C, thiab qhov siab tshaj plaws ua haujlwm kub ntawm carbon fiber tsuas tuaj yeem ncav cuag 500. °C.Tshwj xeeb tshaj yog thaum cov basalt fiber ntau ua haujlwm ntawm 600 ° C, nws lub zog tom qab tawg tuaj yeem tuav tau 80% ntawm nws lub zog qub;Thaum nws ua haujlwm ntawm 860 ° C yam tsis muaj shrinkage, txawm tias cov ntaub plaub ntxhia nrog qhov kub thiab txias kuj tuaj yeem tswj tau lub sijhawm no lub zog tom qab tawg.50% -60%, iav ntaub plaub raug puas tsuaj tag.Cov pa roj carbon fiber ntau ua rau CO thiab CO2 ntawm 300 ° C.Basalt fibers tuaj yeem tswj tau lub zog siab hauv qab dej kub ntawm 70 ° C, thiab basalt fibers yuav poob ib feem ntawm lawv lub zog tom qab 1200 h.
Zoo tshuaj stability thiab corrosion kuj
Cov basalt fiber ntau txuas ntxiv muaj cov khoom xws li K2O, MgO) thiab TiO2, thiab cov khoom no muaj txiaj ntsig zoo rau kev txhim kho cov tshuaj tiv thaiv corrosion thiab dej tsis zoo ntawm cov fiber ntau, thiab ua lub luag haujlwm tseem ceeb heev.Piv nrog rau cov tshuaj stability ntawm iav fiber ntau, nws muaj ntau qhov zoo, tshwj xeeb tshaj yog nyob rau hauv alkaline thiab acidic media.Basalt fiber kuj tseem muaj peev xwm tswj tau siab dua hauv cov tshuaj Ca (OH) 2 saturated thiab alkaline media xws li cement.Alkali corrosion muaj zog.
High modulus ntawm elasticity thiab tensile lub zog
Lub elastic modulus ntawm basalt fiber yog: 9100 kg / mm-11000 kg / mm, uas yog siab tshaj li ntawm alkali-dawb iav fiber, asbestos, aramid fiber, polypropylene fiber thiab silicon fiber.Lub zog tensile ntawm basalt fiber ntau yog 3800-4800 MPa, uas yog siab tshaj qhov loj-tw carbon fiber, aramid, PBI fiber, steel fiber, boron fiber, thiab alumina fiber, thiab yog piv rau S iav fiber.Basalt fiber muaj qhov ceev ntawm 2.65-3.00 g / cm3 thiab siab hardness ntawm 5-9 ntawm Mohs nplai, yog li nws muaj kev hnav zoo heev thiab lub zog tensile.Nws lub zog txhua yam nyob deb tshaj li ntawm cov fibers ntuj thiab hluavtaws fibers, yog li nws yog ib qho khoom siv zoo tshaj plaws, thiab nws cov khoom siv zoo heev yog nyob rau pem hauv ntej ntawm plaub fibers ua haujlwm siab.
Zoo heev suab rwb thaiv tsev
Nruam basalt fiber ntau muaj lub suab rwb thaiv tsev zoo heev thiab lub suab nqus dej.Nws tuaj yeem paub los ntawm lub suab nqus coefficient ntawm fiber ntau ntawm cov zaus sib txawv uas nws lub suab nqus coefficient nce ntau npaum li qhov zaus nce.Piv txwv li, yog hais tias lub suab-absorbing khoom ua los ntawm basalt fiber nrog ib txoj kab uas hla ntawm 1-3μm (density 15 kg / m3, thickness 30mm) yog xaiv, lub fiber yuav tsis puas nyob rau hauv lub suab zaus ntawm 100-300 Hz. , 400-900 Hz thiab 1200-7 000 HZ.Lub suab nqus coefficients ntawm cov ntaub ntawv yog 0. 05 ~ 0.15, 0. 22 ~ 0.75 thiab 0.85 ~ 0.93, feem.
Zoo tshaj Dielectric Properties
Lub ntim resistivity ntawm nruam basalt fiber ntau yog qhov kev txiav txim siab siab dua li ntawm E iav fiber ntau, thiab nws muaj cov khoom zoo dielectric.Txawm hais tias basalt ore muaj cov oxide conductive nrog ib feem ntawm ze li ntawm 0.2, tom qab kev kho tshwj xeeb nto nrog tus neeg sawv cev tshwj xeeb wetting, qhov dielectric poob tangent ntawm basalt fiber yog 50% qis dua li cov iav fiber ntau, thiab lub ntim resistivity ntawm cov fiber ntau. kuj yog siab dua li cov iav fiber ntau.
Ntuj Silicate Compatibility
Nws muaj zoo dispersion nrog cement thiab pob zeb, muaj zog binding quab yuam, zoo ib yam thermal expansion thiab contraction coefficient, thiab zoo huab cua tsis kam.
Tsawg hygroscopicity
Lub hygroscopicity ntawm basalt fiber yog tsawg dua 0.1%, uas yog qis dua li ntawm aramid fiber, pob zeb ntaub plaub thiab asbestos.
Tsawg thermal conductivity
Lub thermal conductivity ntawm basalt fiber yog 0.031 W / m·K -0.038 W / m·K, uas yog qis dua li ntawm aramid fiber, aluminium silicate fiber, alkali-dawb iav fiber, pob zeb ntaub plaub, silicon fiber, carbon fiber thiab stainless. hlau.
Piv nrog rau lwm cov fibers, basalt fiber ntau muaj kev ua tau zoo hauv ntau yam.
| Yam khoom | Nruam Basalt Fiber | Carbon Fiber ntau | Aramid Fiber ntau | iav Fiber |
| Qhov ceev / (g•cm-3) | 2.6-2.8 Nws | 1.7-2.2 | 1.49 ib | 2.5-2.6 |
| Ua haujlwm kub / ℃ | -260-880 | ≤2000 | ≤250 | -60-350 |
| Thermal conductivity / (W / m•K) | 0.031-0.038 Nws | 5-185 : kuv | 0.04-0.13 dr hab | 0.034-0.040 Nws |
| Volume Resistance / (Ω•m) | 1 × 1012 | 2 × 10-5 | 3 × 1013 | 1 × 1011 |
| Suab Absorption Coefficient /% | 0.9-0.99 Nws | 0.8-0.93 Nws | ||
| Elastic Modulus/GPa | 79.3-93.1 ib | 230-600 Nws | 70-140 : kuv | 72.5-75.5 Nws |
| Tensile zog / MPa | 3000-4840 Nws | 3500-6000 | 2900-3400 Nws | 3100-3800 Nws |
| Monofilament Diameter/um | 9-25 | 5-10 | 5-15 | 10-30 |
| Elongation Thaum tawg /% | 1.5-3.2 | 1.3-2.0 Nws | 2.8-3.6 | 2.7-3.0 Nws |
Kev siv ntawm basalt fiber
Pom tsis pom
Basalt fiber muaj cov yam ntxwv ntawm lub zog siab thiab siab thiab kub tsis kam, uas yog qhov tsim nyog rau cov khoom siv saum npoo ntawm cov dav hlau thiab cov cuaj luaj.Nyob rau tib lub sijhawm, nws muaj cov yam ntxwv ntawm nthwv dej nqus thiab sib nqus permeability, uas tuaj yeem paub txog radar invisibility.Yog li basalt carbon fiber tuaj yeem hloov cov pa roj carbon fiber ntau rau stealth aircraft thiab missiles.
Cov mos txwv
Tam sim no, ultra-siab molecular hnyav polyethylene fibers feem ntau yog siv rau cov mos txwv vests, uas tsis muaj tshav kub tsis kam, thiab lawv lub zog thiab modulus yuav txo nyob rau hauv lub kub-kub melting ntawm cov mos txwv, uas yuav cuam tshuam rau cov mos txwv nyhuv.Hauv qhov sib piv, basalt fiber ntau muaj qhov kub thiab txias, yog li qhov teeb meem no tsis muaj nyob.
Aerospace
Basalt fiber ntau muaj cov thermal conductivity tsawg thiab cov nplaim hluav taws zoo.Kev ua haujlwm kub yog -269 ° C ~ 700 ° C, uas tiv taus qhov kub thiab txias.Txhawm rau ua kom tau raws li qhov xav tau ntawm cov khoom siv hauv thaj chaw aerospace, feem ntau ntawm Russia cov khoom siv aerospace yog ua los ntawm cov khoom siv no.
Cov ntawv thov hauv kev ua haujlwm ntawm txoj kev engineering
Basalt fiber muaj qhov zoo ntawm lub zog tensile, zoo mechanical zog, kub tsis kam, tiv thaiv UV, acid tsis kam, alkali tsis kam, ntsev tsis kam, thiab kev laus tiv thaiv.Piv nrog rau lwm cov fibers, nws txoj kev ua tau zoo yog qhov zoo dua, thiab nws kuj ua tau raws li qhov yuav tsum tau ua rau cov khoom siv hauv kev ua haujlwm ntawm txoj kev engineering.Yog li ntawd, ntau thiab ntau basalt fiber ntau tau siv nyob rau hauv txoj kev engineering nyob rau hauv xyoo tas los.
Thaum tshav kub kub rwb thaiv tsev, kub tsis kam, tiv thaiv hluav taws
Cov basalt fiber ntau muaj cov yam ntxwv ntawm qhov kub thiab txias tsis kam, thiab tuaj yeem woven rau hauv daim ntaub fireproof, uas yog siv rau hauv qee qhov chaw tiv thaiv hluav taws.Nws kuj tseem tuaj yeem ua rau hauv lub hnab lim dej kub kom pom qhov kub thiab txias thiab tshem tawm plua plav.Tsis tas li ntawd, nws tseem tuaj yeem ua rau hauv rab koob, uas yog siv rau hauv qee qhov thermal rwb thaiv tsev.
Kev tsim kho sector
Siv qhov zoo tshaj plaws corrosion kuj ntawm basalt fiber, nws tuaj yeem ua ke nrog vinyl lossis epoxy resin los ntawm pultrusion, winding thiab lwm yam txheej txheem los ua ib hom tshiab ntawm cov khoom siv hauv tsev.Cov khoom siv no muaj lub zog siab, zoo heev acid tsis kam thiab corrosion kuj, thiab tuaj yeem siv rau hauv kev tsim vaj tsev engineering es tsis txhob siv qee cov hlau tuav.Ntxiv mus, qhov nthuav coefficient ntawm basalt fiber ntau zoo ib yam li cov pob zeb, thiab yuav tsis muaj qhov kub thiab txias ntawm ob.
Automotive teb
Basalt fiber ntau muaj kev sib txhuam coefficient ruaj khov thiab tuaj yeem siv rau hauv qee qhov kev sib txhuam los txhim kho cov khoom siv, xws li nres nres.Vim yog lub suab nrov nqus coefficient, nws tuaj yeem siv rau qee qhov chaw sab hauv kom ua tiav cov nyhuv ntawm lub suab rwb thaiv tsev thiab txo suab nrov.
Petrochemical teb
Kev tiv thaiv corrosion ntawm basalt fiber ntau muab nws qhov tshwj xeeb zoo hauv petrochemical teb.Cov feem ntau yog winding high-pressure kav ua ke nrog epoxy resin, uas muaj dual los ntawm kev txuag tshav kub thiab tiv thaiv corrosion.
Txawm hais tias basalt fibers tseem muaj teeb meem xws li kev hloov pauv loj hauv cov ntxhia hauv cov ntxhia, cov nqi tsim khoom siab, thiab kev ua haujlwm qis, cov teeb meem no yog ob qho kev sib tw thiab lub sijhawm rau kev txhim kho thiab kev siv cov basalt fibers.
Nrog rau kev ua tiav ntawm kev siv tshuab basalt fiber ntau hauv tsev, kev ua haujlwm ntawm basalt fiber ntau ruaj khov, tus nqi qis dua, thiab nws muaj kev cia siab rau daim ntawv thov dav heev.
Post lub sij hawm: Dec-14-2022