Kev nyab xeeb hluav taws yog qhov teeb meem tseem ceeb hauv kev lag luam kev tsim kho, ua rau muaj kev xav tau cov khoom siv hluav taws kub uas tiv taus kub siab, qeeb nplaim taws kis, thiab txo qhov hloov pauv cua sov. Cov nplaim hluav taws mica uas tiv taus hluav taws, nrog lawv qhov kev ruaj khov thermal zoo heev (tawv kub txog li 1200 ° C), kev ua haujlwm thermal qis, thiab cov khoom tsis kub hnyiab, tau tshwm sim ua cov khoom siv tseem ceeb hauv kev tsim cov khoom siv hluav taws kub. Tsis zoo li cov tshuaj tua hluav taws uas yuav tso cov pa phem thaum hlawv, cov nplaim hluav taws mica yog cov khoom ntuj, tsis muaj tshuaj lom, thiab tswj lawv cov qauv txawm tias nyob hauv qhov kub heev, ua rau lawv zoo tagnrho rau cov qhov rooj hluav taws, cov ntaub thaiv hluav taws, thiab cov vaj huam sib luag rwb thaiv tsev phab ntsa.

Hauv kev tsim cov qhov rooj hluav taws, cov mica flakes raug sib xyaw nrog cov ntoo fiber lossis cov mineral fiber los tsim cov khoom siv hluav taws kub. Thaum ntxiv 20% -30% ntawm cov mica flakes uas tiv taus hluav taws (qhov loj me 40-80 μm) rau cov khoom siv tseem ceeb, qhov ntsuas kev tiv taus hluav taws ntawm lub qhov rooj hluav taws tuaj yeem hloov kho dua tshiab los ntawm 30 feeb mus rau 90-120 feeb. Qhov no yog vim tias cov mica flakes tsim ib txheej tuab, tiv thaiv cua sov thaum raug hluav taws, thaiv kev hloov pauv cua sov thiab tiv thaiv lub qhov rooj kom tsis txhob hlawv lossis vau. Ib lub tuam txhab tsim khoom siv hauv UK tau sim peb cov qhov rooj hluav taws uas muaj mica-reinforced nyob rau hauv cov xwm txheej hluav taws txheem (ISO 834): cov qhov rooj tswj hwm lawv cov qauv ruaj khov rau 110 feeb, nrog rau qhov kub sab nraub qaum tseem nyob hauv qab 140 ° C (qhov txwv rau hluav taws kis), dhau qhov yuav tsum tau ua rau cov qhov rooj hluav taws Class B.

Tsis tas li ntawd xwb, cov qhov rooj hluav taws uas muaj cov mica flakes tau ua pov thawj tias ua tau zoo heev hauv cov xwm txheej hluav taws kub tiag tiag. Hauv hluav taws kub hauv tsev ntau txheej hauv tebchaws Australia, cov qhov rooj hluav taws uas muaj cov mica flakes tau ncua qhov kev sib kis ntawm hluav taws thiab pa luam yeeb, ua rau cov neeg nyob hauv tsev muaj sijhawm ntau dua los khiav tawm kom muaj kev nyab xeeb. Tom qab hluav taws kub, pom tias cov qhov rooj no khaws cia ib feem tseem ceeb ntawm lawv cov qauv, uas tau pab txwv kev puas tsuaj rau lub tsev.

Tsis tas li ntawd xwb, cov mica flakes txhim kho lub zog ntawm cov qhov rooj hluav taws kub, txo qhov warping thiab tawg thaum lub sijhawm teeb tsa thiab siv. Cov qauv sib txuas ua ke los ntawm cov mica flakes hauv cov khoom siv tseem ceeb ua haujlwm zoo li lub network txhawb nqa, muab kev txhawb nqa ntxiv thiab kev ruaj khov. Qhov no tsis yog tsuas yog txhim kho kev tiv thaiv hluav taws xwb tab sis kuj ua rau lub neej ua haujlwm ntawm cov qhov rooj hluav taws ntev dua.

Rau cov ntaub thaiv hluav taws—cov ntaub thaiv uas yooj ywm siv los kaw cov chaw uas yooj yim hluav taws hauv cov tsev lag luam—cov ntaub mica flakes raug txheej rau ntawm cov ntaub uas tiv taus kub siab xws li cov iav fiber lossis cov ntaub aramid. Cov txheej mica (muaj 50%-60% mica flakes) ua haujlwm ua lub tsho tiv thaiv kub, cuam tshuam txog li 85% ntawm lub cua sov thiab tiv thaiv cov ntaub kom tsis txhob yaj. Ib lub khw loj hauv Spain tau teeb tsa cov ntaub thaiv hluav taws uas kho nrog peb cov ntaub mica flakes uas tiv taus hluav taws: thaum lub sijhawm sim hluav taws sim, cov ntaub thaiv tau nres qhov kev sib kis ntawm cov nplaim taws rau 80 feeb, muab sijhawm txaus rau kev khiav tawm thiab kev tua hluav taws.

Tsis tas li ntawd xwb, kev tshawb fawb tau qhia tias qhov kev taw qhia ntawm cov mica flakes hauv cov txheej txheej tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov ntaub thaiv hluav taws. Thaum cov mica flakes raug teeb tsa kom zoo thaum lub sijhawm txheej txheem, lawv tuaj yeem tsim cov khoom thaiv zoo dua los tiv thaiv cua sov thiab nplaim taws. Peb pab neeg R & D tau tsim cov txheej txheem txheej txheem tshwj xeeb uas ua kom muaj qhov kev taw qhia zoo tshaj plaws, ua kom cov khoom tiv thaiv hluav taws ntawm cov ntaub thaiv.

Tsis zoo li cov txheej txheej tiv thaiv hluav taws ib txwm muaj uas lwj tom qab siv ntau zaus, cov txheej txheej mica muaj qhov ruaj khov zoo heev, tswj tau lawv cov yam ntxwv tiv thaiv hluav taws tau txog li 10 xyoo yam tsis tas yuav saib xyuas ntau. Lub neej ntev no ua rau cov ntaub thaiv hluav taws uas muaj txheej mica ua qhov kev daws teeb meem pheej yig rau cov tsev lag luam, txo qhov xav tau hloov pauv ntau zaus thiab cov nqi kho.

Hauv cov vaj huam sib luag rwb thaiv tsev phab ntsa, cov mica flakes raug muab tso rau hauv gypsum lossis cov ntaub ntawv rwb thaiv tsev ua los ntawm cement los txhim kho kev rwb thaiv tsev thermal thiab kev tiv thaiv hluav taws. Ntxiv 15% -25% ntawm mica flakes rau cov vaj huam sib luag rwb thaiv tsev gypsum txo cov thermal conductivity ntawm 0.17 W / (m · K) mus rau 0.12 W / (m · K), txhim kho kev siv hluav taws xob los ntawm 25% -30%. Tib lub sijhawm, cov vaj huam sib luag qhov kev tiv thaiv hluav taws tau txhim kho ntau heev - lawv tsis kub hnyiab lossis tso pa lom thaum raug rau cov nplaim taws qhib, ua tau raws li cov qauv kev nyab xeeb hluav taws ntawm European Union (EN 13501-1) thiab Tebchaws Meskas (ASTM E84).

Ntxiv rau kev txhim kho kev tiv thaiv hluav taws thiab kev rwb thaiv cua sov, cov mica flakes kuj tseem pab txhawb rau kev ua haujlwm acoustic ntawm cov phab ntsa rwb thaiv tsev. Cov qauv flaky ntawm mica pab nqus thiab txo cov suab nrov, txo qhov kev sib kis suab nrov ntawm cov chav. Qhov no ua rau cov vaj huam sib luag rwb thaiv tsev mica yog qhov kev xaiv zoo tshaj plaws rau cov tsev uas kev tiv thaiv suab nrov kuj yog qhov tseem ceeb, xws li cov tsev so, tsev kawm ntawv, thiab tsev kho mob.

Ib qho project tsev nyob hauv lub teb chaws Yelemes siv cov mica-reinforced insulation panels no: cov tsev tau txais BREEAM Excellent rating rau kev siv hluav taws xob zoo, thiab kev ntsuam xyuas kev nyab xeeb hluav taws tau lees paub tias cov panels tau pab txo qhov kev pheej hmoo ntawm hluav taws kub 40% piv rau cov qauv rwb thaiv tsev. Kev vam meej ntawm qhov project no tau ua rau muaj kev txaus siab ntxiv rau cov mica-reinforced insulation panels thoob plaws Tebchaws Europe, nrog ntau tus neeg tsim khoom thiab cov neeg cog lus teev lawv rau lawv cov project.

Peb cov mica flakes uas tiv taus hluav taws muaj ob qib: cov muscovite mica flakes uas tiv taus kub siab (ruaj khov txog li 750°C) thiab cov phlogopite mica flakes uas kub heev (ruaj khov txog li 1200°C). Cov cim qhia tseem ceeb suav nrog: cov dej noo ≤0.3%, cov tshauv ≤0.5%, kev ua kom sov ≤0.08 W/(m·K), thiab qhov ntsuas hluav taws kub (UL94) V-0. Txhua yam khoom raug kuaj xyuas zoo, suav nrog kev kuaj xyuas kev ruaj khov ntawm cua sov (hauv lub cub tawg), kev kuaj xyuas kev sib kis hluav taws (siv lub cone calorimeter), thiab kev kuaj xyuas cov pa roj lom (raws li ISO 19702), kom ntseeg tau tias ua raws li cov cai kev nyab xeeb hluav taws thoob ntiaj teb.

Yuav kom paub tseeb tias peb cov mica flakes zoo thiab sib xws, peb tau siv txoj kev tswj xyuas zoo nruj heev ntawm txhua theem ntawm kev tsim khoom. Txij li cov khoom siv raw mus rau qhov kawg ntim, txhua pawg ntawm mica flakes raug tshuaj xyuas thiab sim ua tib zoo.

Peb muab kev txhawb nqa tshwj xeeb rau cov chaw tsim khoom siv hauv tsev. Rau cov chaw tsim khoom qhov rooj hluav taws, peb pom zoo kom siv phlogopite mica flakes rau cov ntawv thov kub thiab pab txhim kho qhov sib xyaw kom sib npaug tiv taus hluav taws thiab tus nqi. Rau cov neeg pleev xim ntaub thaiv hluav taws, peb muab micronized mica flakes (qhov loj me 10-20 μm) uas tsim cov txheej du thiab sib npaug yam tsis cuam tshuam rau kev yooj ywm ntawm cov ntaub. Peb pab neeg ua haujlwm kuj tseem ua kev cob qhia hauv tsev txog cov txheej txheem mica flake dispersion, xyuas kom meej tias cov ntaub faib sib npaug kom tsis txhob muaj qhov tsis muaj zog hauv kev tiv taus hluav taws.

Ntxiv rau kev txhawb nqa kev siv tshuab, peb kuj muab cov kev pabcuam tsim khoom raws li koj xav tau. Yog tias cov neeg siv khoom muaj cov kev xav tau tshwj xeeb rau cov khoom mica flake, xws li kev faib tawm qhov loj me ntawm cov khoom me me, kev kho qhov chaw, lossis xim, peb pab neeg R & D tuaj yeem ua haujlwm nrog lawv los tsim cov kev daws teeb meem tshwj xeeb. Qhov kev ywj pheej no tso cai rau peb kom ua tau raws li ntau yam kev xav tau ntawm peb cov neeg siv khoom hauv kev lag luam khoom siv hauv tsev.

Hauv kev xa khoom, peb siv cov ntim khoom uas kaw tau cua sov thiab tsis ntub dej (25 kg/hnab) los tiv thaiv cov mica flakes kom tsis txhob nqus tau dej noo, uas yuav ua rau lawv tsis kub hnyiab. Peb koom tes nrog cov tuam txhab xa khoom tshwj xeeb hauv cov ntaub ntawv siv hauv kev tsim kho, xa cov khoom mus rau Tebchaws Europe, North America, thiab Middle East hauv 20-35 hnub.