Tuam Tshoj Mica Flakes Hloov Pauv Txoj Kev Lag Luam Roj Hmab Phau Ntawv Qhia Txog Cov Khoom Siv Ua Haujlwm Siab

Mica Flakes Hloov Pauv Kev Lag Luam Roj Hmab Phau Ntawv Qhia Txog Kev Ua Haujlwm Zoo

Kev Piav Qhia Luv:

Cov mica flakes, nrog lawv cov qauv lamellar sib txawv, kev ruaj khov tshuaj lom neeg zoo heev, thiab kev sib raug zoo nrog cov roj hmab matrices, tau tsim lawv tus kheej ua cov khoom siv ua haujlwm siab hauv kev lag luam roj hmab. Tsis zoo li cov khoom siv ib txwm muaj xws li carbon dub lossis calcium carbonate, mica flakes muab kev sib xyaw ua ke ntawm kev txhawb nqa tshuab, kev tiv thaiv huab cua, thiab kev ruaj khov ntawm qhov ntev, ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv roj hmab ua haujlwm hauv qhov chaw nyuaj, suav nrog cov foob tsheb, cov yeeb nkab roj hmab kev lag luam, thiab cov siv conveyor.

Hauv kev siv cov roj hmab foob rau tsheb, xws li cov foob qhov rooj, cov foob qhov rai, thiab cov gasket cav, cov mica flakes ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev tiv thaiv kua muag thiab kev ua haujlwm ntawm cov khoom siv compression. Cov foob no raug kev nyuaj siab ntau zaus, kev hloov pauv kub ntau heev txij li -40 ° C txog 120 ° C, thiab kev raug hluav taws xob UV ntev, cov yam uas ua rau cov foob roj hmab ib txwm tawg, tawv, lossis poob elasticity dhau sijhawm.

Qhov ntxiv 8%-15% ntawm cov mica flakes uas muaj qhov sib piv siab, nrog rau qhov loj me ntawm 30-80 μm thiab qhov sib piv ntawm ≥100, rau ethylene-propylene-diene monomer (EPDM) roj hmab ua rau muaj txiaj ntsig zoo kawg nkaus. Lub zog rhuav ntawm cov roj hmab nce ntxiv 40%-60%, thaum qhov nrawm ntawm kev teeb tsa, ntsuas tom qab 70 teev ntawm 100 ° C, poob qis heev los ntawm 35% mus rau 15%. Ib lub tuam txhab tsim khoom siv tsheb hauv lub teb chaws Yelemees tau ua qhov kev sim ntau yam siv peb cov mica flakes hauv EPDM qhov rooj foob. Cov txiaj ntsig zoo kawg nkaus: cov foob tseem khaws lawv cov elasticity thiab kev ua haujlwm sealing rau 500,000 qhib thiab kaw voj voog, piv rau tsuas yog 300,000 voj voog rau cov foob tsis muaj mica flakes. Lub neej ua haujlwm ntev no tsis yog tsuas yog txo cov nqi kho rau cov tswv tsheb xwb tab sis kuj txhim kho kev ntseeg siab ntawm cov khoom siv tsheb.

Rau cov kav dej roj hmab siv rau kev xa cov tshuaj, roj, thiab dej, cov mica flakes yog cov cuab yeej tseem ceeb hauv kev txhim kho kev tiv thaiv tshuaj thiab kev tiv thaiv siab. Cov kav dej no feem ntau kov cov xov xwm corrosive thiab yuav tsum tiv taus qhov siab sab hauv siab txog li 10 MPa. Mica flakes, nrog lawv cov qauv lamellar tsis nkag tau, tsim cov khoom thaiv zoo hauv cov roj hmab matrix, txo qhov nkag ntawm cov tshuaj los ntawm 50% -70%.

Thaum ntxiv rau cov roj hmab nitrile (NBR) cov kav dej ntawm qhov ntau npaum li cas ntawm 10% -20%, mica flakes ua rau lub zog tawg ntawm cov kav dej nce ntxiv 25% -35% thiab ntev nws lub neej kev pabcuam hauv kev siv roj hloov pauv los ntawm 1 xyoos mus rau 2-3 xyoos. Ib lub Hoobkas tshuaj lom neeg hauv Netherlands tau muab peb cov kav dej NBR uas muaj mica-reinforced rau qhov kev sim hauv kev hloov pauv ntawm 20% concentrated sulfuric acid. Cov txiaj ntsig tau xaus lus: tom qab 12 lub hlis ntawm kev siv tas mus li, cov kav dej tsis qhia txog qhov o lossis xau, thaum cov kav dej NBR txheem tsis ua haujlwm tom qab tsuas yog 4 lub hlis. Tsis tas li ntawd, mica flakes txhim kho qhov ruaj khov ntawm cov kav dej roj hmab, txo qhov shrinkage thaum lub sijhawm vulcanization los ntawm 15% -25% thiab ua kom ntseeg tau tias haum nrog cov khoom sib txuas.

Tag nrho peb cov mica flakes ua tau raws li cov qauv kev lag luam nruj heev hauv cov ntsiab lus tseem ceeb ntawm kev ntsuas kev siv tshuab. Cov dej noo yog ≤0.3%, tshauv cov ntsiab lus ≤0.5%, roj nqus ≤25 mL / 100g, thiab lawv ua rau muaj kev tiv thaiv kub zoo heev, tseem ruaj khov ntawm qhov kub txog li 600 ° C. Ntxiv mus, peb cov khoom ua raws li RoHS thiab REACH cov cai, nrog cov hlau hnyav cov ntsiab lus qis dua cov kev nyab xeeb thoob ntiaj teb (lead ≤0.0005%, arsenic ≤0.0003%).

Thaum nws los txog rau kev xa khoom, peb qhov tseem ceeb tshaj plaws yog qhov zoo thiab kev ncaj ncees ntawm peb cov khoom. Peb cov mica flakes tau ntim rau hauv cov hnab tiv thaiv dej noo (25 kg / hnab), uas muaj ib zaj duab xis polyethylene sab hauv thiab ib lub hnab ntawv kraft sab nraud kom tiv thaiv kev nqus dej noo thaum lub sijhawm thauj mus los hauv hiav txwv. Peb tau tsim kev koom tes zoo nrog cov tuam txhab xa khoom xws li Maersk thiab COSCO, kom ntseeg tau tias kev xa khoom raws sijhawm rau cov neeg siv khoom hauv Tebchaws Europe, North America, thiab Southeast Asia hauv 15-30 hnub.

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Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Mica yog lub npe dav dav ntawm cov minerals mica. Nws yog aluminosilicate ntawm potassium, txhuas, magnesium, hlau, lithium thiab lwm yam hlau, tag nrho cov no yog layered thiab monoclinic. Lub siv lead ua yog pseudohexagonal lamellae lossis phaj zoo li, qee zaum columnar. Lub lamellar cleavage yog tiav heev, nrog iav ci thiab elastic daim ntawv. Lub refractive index ntawm mica nce nrog rau qhov nce ntawm cov hlau, los ntawm qis protrusion mus rau nruab nrab protrusion. Cov hom tsis muaj hlau yog tsis muaj xim hauv flake. Cov hlau ntau dua, qhov tsaus dua xim, thiab ntau dua polychromatic thiab absorptive.

Mica flake loj: 6-10mesh, 10-20mesh,
Hmoov mica: 200mesh, 325mesh, 600mesh, 800mesh, 1250mesh, 2000mesh, 3000mesh thiab 5000mesh.

Daim Ntawv Thov
Hauv kev lag luam, biotite feem ntau siv nws cov rwb thaiv tsev thiab cua sov tiv taus, nrog rau kev tiv thaiv acid, alkali tiv taus, compression tiv taus thiab tev tawv tiv taus, ua cov khoom siv rwb thaiv tsev ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob; qhov thib ob, nws yog siv los tsim cov qhov rai thiab cov khoom siv kho tshuab ntawm cov boilers thiab smelting furnaces. Mica chips thiab mica hmoov tuaj yeem ua tiav rau hauv mica ntawv, thiab tseem tuaj yeem hloov mica daim ntawv los tsim ntau yam khoom siv rwb thaiv tsev pheej yig thiab sib npaug tuab.

Muscovite yog siv dav tshaj plaws hauv kev lag luam, ua raws li phlogopite. Nws yog siv dav hauv kev lag luam khoom siv hauv tsev, kev lag luam tua hluav taws, tus neeg tua hluav taws, vuam pas nrig, yas, rwb thaiv tsev hluav taws xob, ua ntawv, ntawv asphalt, roj hmab, xim pearlescent thiab lwm yam kev lag luam tshuaj lom neeg.

Ultrafine mica hmoov yog siv los ua cov khoom siv rau yas, pleev xim, pleev xim, roj hmab thiab lwm yam, uas tuaj yeem txhim kho nws lub zog kho tshuab, txhim kho kev tawv, kev nplaum, tiv thaiv kev laus thiab kev tiv thaiv corrosion.