Hmoov mica yog ib yam khoom uas tsis yog hlau uas muaj ntau yam khoom, feem ntau yog SiO2, nrog rau cov ntsiab lus feem ntau nyob ib ncig ntawm 49% thiab Al2O3 nyob ib ncig ntawm 30%. Hmoov mica muaj qhov elasticity zoo thiab toughness. Nws yog ib qho khoom zoo heev nrog cov yam ntxwv xws li rwb thaiv tsev, tiv taus kub siab, acid thiab alkali tsis kam, tiv taus corrosion, thiab muaj zog adhesion. Nws yog dav siv hauv kev lag luam xws li cov khoom siv hluav taws xob, vuam electrodes, roj hmab, yas, ua ntawv, xim, txheej, pigments, ceramics, tshuaj pleev ib ce, cov ntaub ntawv tsim kho tshiab, thiab lwm yam, nrog rau kev siv dav heev. Nrog rau kev txhim kho tas mus li ntawm kev tshawb fawb thiab thev naus laus zis, tib neeg tau qhib ntau qhov chaw thov tshiab. Hmoov mica yog ib txheej silicate uas muaj ob txheej ntawm silica tetrahedra sandwiched nrog ib txheej ntawm txhuas oxide octahedra, tsim ib txheej silica sib xyaw. Tag nrho cleaved, muaj peev xwm faib ua daim ntawv nyias heev, nrog rau qhov tuab ntawm txog li 1 μ Hauv qab m (theoretically, nws tuaj yeem txiav rau 0.001) μ m), nrog rau qhov loj dua rau qhov tuab piv; Cov mis tshuaj ntawm cov hmoov mica siv lead ua yog: K0.5-1 (Al, Fe, Mg) 2 (SiAl) 4O10 (OH) 2 ▪ NH2O, cov tshuaj lom neeg dav dav: SiO2: 43.13-49.04%, Al2O3: 27.93-37.44%, K2O + Na2O: 9-11%, H2O: 4.13-6.12%.

Hmoov mica yog cov monoclinic crystals, uas yog nyob rau hauv daim ntawv ntawm cov nplai thiab muaj ib tug silky luster (muscovite muaj ib tug iav luster). Cov blocks ntshiab yog grey, ntshav liab, dawb, thiab lwm yam, nrog rau lub cheeb tsam rau thickness piv ntawm> 80, lub ntiajteb txawj nqus ntawm 2.6-2.7, lub hardness ntawm 2-3, siab elasticity, yooj ywm, zoo hnav tsis kam thiab hnav tsis kam; Rwb thaiv tsev kub-resistant, nyuaj rau yaj nyob rau hauv acid-base cov kua, thiab chemically ruaj khov. Cov ntaub ntawv xeem: elastic modulus 1505-2134MPa, tshav kub tsis kam 500-600 ℃, thermal conductivity 0.419-0.670W. (mK), hluav taws xob rwb thaiv tsev 200kv / mm, hluav taws xob tsis kam 5 × 1014 thermal neutron / cm irradiance.

Ntxiv rau, cov tshuaj lom neeg sib xyaw, cov qauv, thiab cov qauv ntawm mica hmoov zoo ib yam li cov kaolin, thiab nws kuj muaj qee yam ntxwv ntawm cov av nplaum, xws li kev sib kis zoo thiab kev ncua hauv cov dej thiab cov kuab tshuaj organic, xim dawb, cov khoom me me, thiab nplaum. Yog li ntawd, mica hmoov muaj ntau yam ntxwv ntawm ob qho tib si mica thiab av nplaum minerals.

Kev txheeb xyuas cov hmoov mica yooj yim heev. Raws li kev paub dhau los, feem ntau muaj cov hauv qab no rau koj siv xwb:

1, Qhov dawb ntawm mica hmoov tsis siab, txog li 75. Kuv feem ntau tau txais cov lus nug los ntawm cov neeg siv khoom, hais tias qhov dawb ntawm mica hmoov yog nyob ib ncig ntawm 90. Nyob rau hauv ib txwm muaj xwm txheej, qhov dawb ntawm mica hmoov feem ntau tsis siab, tsuas yog nyob ib ncig ntawm 75. Yog tias doped nrog lwm yam fillers xws li calcium carbonate, talc hmoov, thiab lwm yam, qhov dawb yuav zoo dua.

2. Hmoov mica muaj cov qauv flaky. Siv ib lub beaker, ntxiv 100ml dej ntshiab, thiab do nrog ib tug pas iav kom pom tias cov tshuaj mica zoo heev; Lwm cov khoom fillers suav nrog cov hmoov pob tshab, hmoov talc, calcium carbonate thiab lwm yam khoom, tab sis lawv cov kev ua tau zoo tsis zoo li hmoov mica.

3. Muab me ntsis rau ntawm koj lub dab teg, uas muaj qhov zoo li pearlescent me ntsis. Hmoov mica, tshwj xeeb tshaj yog hmoov sericite, muaj qhov zoo li pearlescent thiab siv dav hauv kev lag luam xws li tshuaj pleev ib ce, tshuaj pleev xim, yas, roj hmab, thiab lwm yam. Yog tias cov hmoov mica uas koj yuav muaj qhov zoo li pearlescent tsis zoo lossis tsis muaj, yuav tsum tau ua tib zoo saib xyuas lub sijhawm no.

Cov ntawv thov tseem ceeb ntawm mica hmoov hauv coatings.

Daim ntawv thov ntawm mica hmoov hauv coatings yog feem ntau pom nyob rau hauv cov hauv qab no:

1. Cov nyhuv thaiv: Cov ntawv sau zoo li daim ntawv tsim ib qho kev teeb tsa sib luag hauv cov xim pleev xim, thiab dej thiab lwm yam tshuaj corrosive nkag mus rau hauv cov xim pleev xim raug thaiv kom zoo. Thaum siv cov hmoov sericite zoo (qhov sib piv ntawm txoj kab uas hla mus rau qhov tuab ntawm cov chip yog tsawg kawg 50 zaug, zoo dua ntau dua 70 zaug), lub sijhawm nkag mus ntawm dej thiab lwm yam tshuaj corrosive los ntawm cov xim pleev xim feem ntau ntev peb zaug. Vim tias cov hmoov sericite fillers pheej yig dua li cov resins tshwj xeeb, lawv muaj txiaj ntsig zoo thiab kev lag luam. Kev siv cov hmoov sericite zoo yog ib txoj hauv kev tseem ceeb los txhim kho qhov zoo thiab kev ua tau zoo ntawm cov txheej tiv thaiv xeb thiab cov txheej phab ntsa sab nraud. Thaum lub sijhawm txheej txheem, cov chips sericite raug rau qhov nro ntawm qhov chaw ua ntej cov xim pleev xim khov, ua rau cov qauv uas sib luag rau ib leeg thiab kuj rau ntawm qhov chaw ntawm cov xim pleev xim. Cov txheej txheem no los ntawm txheej txheej, nrog nws qhov kev taw qhia perpendicular rau qhov kev taw qhia uas cov tshuaj corrosive nkag mus rau hauv cov xim pleev xim, muaj qhov cuam tshuam zoo tshaj plaws.
2. Txhim kho cov khoom siv lub cev thiab cov khoom siv kho tshuab ntawm cov xim pleev xim: Kev siv cov hmoov sericite tuaj yeem txhim kho ntau yam khoom siv lub cev thiab cov khoom siv kho tshuab ntawm cov xim pleev xim. Qhov tseem ceeb yog cov yam ntxwv morphological ntawm cov khoom sau, uas yog qhov sib piv ntawm txoj kab uas hla mus rau qhov tuab ntawm cov khoom sau zoo li daim ntawv thiab qhov ntev mus rau txoj kab uas hla ntawm cov khoom sau fibrous. Cov khoom sau granular, zoo li xuab zeb thiab pob zeb hauv cov pob zeb ua vaj tse, ua lub luag haujlwm txhawb nqa hauv kev txhawb nqa cov hlau tuav.
3. Txhim kho qhov kev tiv thaiv kev hnav ntawm cov xim pleev xim: Qhov tawv ntawm cov resin nws tus kheej yog txwv, thiab lub zog ntawm ntau cov khoom sau kuj tsis siab (xws li hmoov talc). Ntawm qhov tsis sib xws, sericite yog ib qho ntawm cov khoom ntawm granite, nrog rau qhov tawv thiab lub zog kho tshuab siab. Yog li ntawd, ntxiv sericite hmoov ua ib qho khoom sau rau hauv txheej txheej tuaj yeem txhim kho nws qhov kev tiv thaiv kev hnav. Feem ntau cov txheej tsheb, txheej txoj kev, txheej tiv thaiv kev xeb, thiab txheej phab ntsa siv sericite hmoov.
4. Kev ua tau zoo ntawm kev rwb thaiv tsev: Sericite muaj kev tiv taus siab heev thiab nws tus kheej yog cov khoom siv rwb thaiv tsev zoo tshaj plaws. Nws tsim cov khoom sib xyaw nrog cov organic silicon resin lossis organic silicon boron resin thiab hloov nws mus rau hauv cov khoom siv ceramic nrog lub zog kho tshuab zoo thiab kev ua tau zoo rwb thaiv tsev thaum ntsib qhov kub siab. Yog li ntawd, cov xov hlau thiab cov cables ua los ntawm cov khoom siv rwb thaiv tsev no tseem khaws lawv lub xeev rwb thaiv tsev qub txawm tias tom qab raug hlawv hauv hluav taws. Nws yog qhov tseem ceeb heev rau cov mines, qhov av, cov tsev tshwj xeeb, cov chaw tshwj xeeb, thiab lwm yam.
5. Tiv thaiv hluav taws: Hmoov sericite yog ib yam khoom siv tiv thaiv hluav taws uas muaj nqis heev. Yog tias muab sib xyaw nrog cov tshuaj tiv thaiv hluav taws organic halogen, cov tshuaj tiv thaiv hluav taws thiab cov tshuaj tiv thaiv hluav taws tuaj yeem npaj tau.
6. Kev tiv thaiv UV thiab infrared: Sericite muaj kev ua tau zoo heev hauv kev tiv thaiv ultraviolet thiab infrared hluav taws xob. Yog li ntxiv cov hmoov sericite ntub rau hauv cov txheej sab nraum zoov tuaj yeem txhim kho qhov kev tiv thaiv UV ntawm cov xim pleev xim thiab ncua nws cov laus. Nws cov kev ua haujlwm tiv thaiv infrared yog siv los npaj cov khoom rwb thaiv tsev thiab cov ntaub ntawv rwb thaiv tsev (xws li cov txheej).
7. Kev tawg hluav taws xob thiab cov txheej txheem kub siab: Sericite muaj peev xwm tawg hluav taws xob infrared zoo, xws li ua ke nrog hlau oxide, uas tuaj yeem tsim cov teebmeem tawg hluav taws xob zoo heev.
8. Kev rwb thaiv suab thiab kev nqus dej poob siab: Sericite tuaj yeem hloov pauv ntau yam khoom siv lub cev, tsim lossis hloov lawv cov viscoelasticity. Hom khoom no nqus tau lub zog co, ua rau cov nthwv dej co thiab cov nthwv dej suab tsis muaj zog. Tsis tas li ntawd, qhov kev cuam tshuam rov qab ntawm cov nthwv dej co thiab cov nthwv dej suab ntawm cov mica chips kuj ua rau lawv lub zog tsis muaj zog. Hmoov sericite kuj tseem siv los npaj cov khoom tiv thaiv suab, tiv thaiv suab, thiab cov txheej txheem nqus dej poob siab.