Cov yam ntxwv ntawm Basalt Fibers

Qhov saum npoo ntawm basalt fiber yog du, lub zog saum npoo yog qhov tsawg, tom qab kev hloov kho deg, nano-SiO2 hais ntxiv rau saum npoo, uas ua kom zoo dua qhov roughness ntawm cov fiber ntau thiab ua rau kom muaj kev sib cuag zoo ntawm cov kab mob thiab cov cab; muaj cov cations ntawm qhov chaw hloov kho, lub peev xwm ntawm tus neeg nqa khoom tau nce ntxiv, thiab qhov chaw ntawm cov cab kuj tau txais txiaj ntsig zoo, thiab lub tshuab nqus dej electrostatic siv los txhawb kev kho cov kab mob, uas yog qhov tsim nyog rau immobilization ntawm cov kab mob; Cov pab pawg ua haujlwm nquag ntawm qhov chaw hloov kho ua kom lub zog saum npoo ntawm cov cab kuj, thiab pawg hydroxyl, Carbonyl lossis carboxyl pawg muaj txiaj ntsig zoo rau kev ua kom adhesion thiab kev loj hlob ntawm cov kab mob ntawm cov kab mob ntawm cov cab. Los ntawm kev hloov kho saum npoo ntawm basalt fiber carrier, nws muaj kev ua haujlwm zoo ntawm hydrophilicity thiab microbial load, yog li nws muaj peev xwm nqa tau ntau biomass thiab tswj cov microbial siab rau lub sijhawm ntev, thiaj li ua tau zoo dua degradation ntawm cov pa phem hauv dej los ntawm txoj kev biofilm. .

 

(1) Cov khoom siv txaus

Basalt fiber yog ua los ntawm basalt ore melted thiab kos, 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 yog tsawg.

 

(2) Environmentally-friendly cov ntaub ntawv

Basalt ore yog cov khoom siv ntuj tsim, thiab tsis muaj boron lossis lwm yam alkali hlau oxides tawm thaum nws cov txheej txheem tsim khoom, yog li tsis muaj nag lossis daus ntawm cov khoom tsis zoo hauv nws cov pa taws thiab plua plav, thiab nws yuav tsis ua kom muaj kuab paug rau huab cua. Ntxiv mus, cov khoom lag luam muaj lub neej ua haujlwm ntev, yog li nws yog hom tshiab ntawm cov khoom siv tiv thaiv ib puag ncig ntsuab nrog tus nqi qis, kev ua haujlwm siab thiab kev huv zoo tagnrho.

 

(3) Kub thiab dej tsis kam

Kev ua haujlwm kub ntawm cov basalt fiber ntau tsis tu ncua feem ntau yog 269 ~ 700 degree (mos taw tes yog 960 degree), thaum iav fiber ntau yog 60 ~ 450 degree, thiab qhov siab tshaj plaws siv kub ntawm carbon fiber tsuas tuaj yeem ncav cuag 500 degree. Tshwj xeeb, thaum lub basalt fiber ntau ua haujlwm ntawm 600 degree, nws lub zog tseem tuaj yeem tswj tau 80% ntawm qhov qub zog tom qab tawg, thiab thaum nws ua haujlwm ntawm 860 degree tsis shrinkage, txawm tias cov ntxhia wool nrog kub zoo heev kuj tuaj yeem ua haujlwm. tsuas yog tuav lub zog ntawm 50%-60% tom qab tawg, thiab cov iav ntaub plaub raug puas tsuaj tag. Carbon fiber, ntawm qhov tod tes, tsim CO thiab CO2 ntawm txog 300 degree. Basalt fibers tuaj yeem tuav lub zog siab nyob rau hauv qhov kev txiav txim ntawm 70 degree dej kub, thiab basalt fibers yuav poob ib feem ntawm lawv lub zog tom qab 1200 h.

 

(4) Zoo tshuaj stability thiab corrosion kuj

Nruam basalt fiber ntau muaj cov khoom xws li K2O, MgO) thiab TiO2, uas muaj txiaj ntsig zoo los txhim kho cov tshuaj tiv thaiv corrosion thiab dej tsis zoo ntawm fibers, thiab ua lub luag haujlwm tseem ceeb heev. Nws muaj qhov zoo dua li cov tshuaj ruaj khov ntawm cov iav fibers, tshwj xeeb tshaj yog nyob rau hauv alkaline thiab acidic media, thiab basalt fibers kuj tseem muaj peev xwm tswj tau siab dua rau alkaline corrosion hauv saturated Ca (OH) 2 tov thiab alkaline media xws li cement.

 

(5) Siab elastic modulus 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 dua li cov cab loj carbon fiber, aramid, PBI fiber, steel fiber, boron fiber thiab alumina fiber, thiab yog piv rau S iav fiber. Qhov ceev ntawm basalt fiber ntau yog 2.65-3.00 g / cm3, thiab hardness yog siab heev, 5-9 degrees ntawm Mohs nplai, yog li nws muaj zoo heev hnav tsis kam thiab tensile zog. 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 zoo heev yog nyob rau hauv pem hauv ntej ntawm plaub fibers ua haujlwm siab.

 

(6) Kev ua haujlwm zoo ntawm lub suab rwb thaiv tsev

Nruam basalt fiber ntau muaj lub suab rwb thaiv tsev zoo thiab lub suab nqus cov khoom, thiab nws tuaj yeem paub los ntawm lub suab nqus coefficient ntawm fiber ntau nyob rau hauv cov suab sib txawv, thiab nws lub suab nqus coefficient nce ntxiv nrog qhov nce ntawm zaus. Yog tias cov khoom siv suab nrov ua los ntawm basalt fiber nrog ib txoj kab uas hla ntawm 1-3 μm (qhov ceev ntawm 15 kg / m3 thiab thickness ntawm 3 0mm) raug xaiv, lub suab nqus coefficient ntawm cov khoom siv fiber ntau yog 0 nyob rau hauv cov xwm txheej ntawm 100~300 Hz, 400 ~ 900 Hz thiab 1200 ~ 7 000 HZ. 05-0.15, 0.22-0. 75 thiab 0.85 ~ 0.93.