Txawm hais tias tej zaum koj yuav tsis paub nws, lub ntiaj teb niaj hnub no muaj ntau yam uas yuav tsum ua tsaug rau cov tsiaj txhu.
Tsawg tus neeg paub txog lawv lub neej, txawm tias tsawg tus neeg paub tias lawv nyob qhov twg. Txawm hais tias qhov nrawm nrawm ntawm Wikipedia, qhov chaw ntawm txhua qhov chaw, yuav qhia rau cov neeg tsis paub hais tias, "Ib lub cenosphere yog lub teeb yuag, inert, hollow sphere ua los ntawm silica thiab alumina loj thiab ntim nrog huab cua lossis inert gas, feem ntau ua los ntawm cov khoom lag luam. thee combustion ntawm thermal fais fab nroj tsuag. Cov xim ntawm cenospheres txawv ntawm grey mus rau yuav luag dawb thiab lawv qhov ceev yog li ntawm 0.4-0.8 g / cm3 (0.014-0.029 lb / cu hauv), uas ua rau lawv zoo heev buoyancy.
Txawm li cas los xij, qhov ntawd tsis tshua piav txog qhov zoo nkauj tiag tiag ntawm cov me me, tseem muaj zog, pob ntawm ya tshauv. Rau lawv lub zog tiag tiag nyob rau hauv ntau haiv neeg ntawm lawv siv. Raws li Fabkis Kev Lag Luam Phau Ntawv Xov Xwm ntau yam kev siv hauv kev lag luam. Tshwj xeeb, [lawv yog qhov zoo tagnrho] rau cov khoom siv los yog cov khoom siv ntawm kev tiv thaiv corrosion, los yog thermal thiab suab rwb thaiv tsev rau coatings los yog xim. Lawv tuaj yeem piav qhia ua cov khoom siv ntau yam thiab sib xyaw ua ke zoo hauv cov khoom siv thiab cov ntaub ntawv xws li cov khoom siv thermoplastics thiab thermosetting. "
Cenospheres hauv Paints thiab Txheej
Muaj ntau yam kev siv rau cenospheres hauv cov xim thiab kev lag luam txheej, vim muaj cov khoom zoo ntxiv uas lawv muab. Piv txwv li, cenospheres feem ntau siv rau hauv cov txheej txheem los tswj cov hluav taws xob infrared, muab cov txheej txheem kom zoo dua cov uas tsuas yog sim txwv cov thermal conductivity.
Lub caij no, cov kws tshaj lij txheej txheej ntawm Petra Buildcare Products, piav qhia yuav ua li cas cenospheres, “… txhim kho cov xim zoo los ntawm kev txhim kho qhov ntim thiab qhov ntom ntawm cov khoom. Tom qab daim ntawv thov rau ntawm phab ntsa, cov hlaws dai ceramic zoo li ntsws yog li tsim cov yeeb yaj kiab nruj nreem rau ntawm phab ntsa. "
Cenospheres hauv Syntactic Foams
Cenospheres feem ntau yog siv los ua 'syntactic foams'. Cov no yog cov khoom tshwj xeeb uas siv cov cenospheres los ua ib qho muab tub lim los muab cov txiaj ntsig zoo, los ntawm tus nqi qis, ntxiv zog, suab pov thawj, buoyancy thiab thermal tiv thaiv.
Cov kws tshaj lij ntawm Engineered Syntactic Systems piav qhia ua npuas ncauj raws li hauv qab no;
"Qhov 'syntactic' feem yog hais txog cov qauv txiav txim los ntawm qhov hollow spheres. Lub sij hawm 'ua npuas ncauj' cuam tshuam rau lub cellular xwm ntawm cov khoom. Ua tsaug rau nws cov khoom tshwj xeeb ntawm lub zog siab ntawm kev ntom ntom ntom ntom ntom ntom, syntactic ua npuas ncauj tau dhau los ua cov ntawv thov buypys. Syntactic cov ntaub ntawv yog resistant rau kev sib xyaw ua ke ntawm hydrostatic siab thiab lub sij hawm ntev raug uas ua rau lawv zoo tagnrho rau oceanering tej yaam num xws li cable thiab hardball floats thiab instrumentation txhawb. Lawv kuj muab lub zog thiab kev ncaj ncees ntawm qhov hnyav ntawm ib lub ntim ntau dua li cov ntaub ntawv ib txwm ua uas ua rau lawv muaj kev xaiv zoo rau ntau yam kev tiv thaiv thiab kev siv engineering. "
Cenospheres hauv Petroleum Drilling
Rau cov pov thawj ntawm qhov tsis paub qhov tseem ceeb ntawm cenospheres, koj yuav tsum tsis txhob saib ntxiv tias lub luag haujlwm tseem ceeb uas lawv ua hauv kev lag luam roj av. Txawm hais tias txhua tus paub txog qhov tseem ceeb ntawm cov roj hauv lub ntiaj teb niaj hnub no, nws yog qhov paub me ntsis tias cenospheres muaj, raws li Fab Kis kev lag luam phau ntawv xov xwm, Industrie & Technologies, hais tias, "... tau siv ntau xyoo hauv kev lag luam roj rau txo qhov ntom ntawm cov roj av cement paste yam tsis muaj cov ntsiab lus dej ntxiv. "
Cenospheres hauv Plastics thiab Polymers
Cenospheres kuj tseem muaj kev siv hauv kev tsim cov yas thiab cov polymers, vim tias lawv cov duab rov qab los yog lub zog yuav pab kom tsis txhob poob qis hauv cov thermoplastics thiab thermosetting plastics.
Lawv kuj tau siv nyob rau hauv niaj hnub composites hauv kev lag luam tsheb. Piv txwv li, lub 2016 Chevrolet Corvette muaj "cov ntawv molding compound uas iav microspheres hloov calcium carbonate muab tub lim thiab chais 20 phaus [9kg] tawm ntawm lub tsheb kis las Stingray Coupe qauv hnyav." Tus Lwm Thawj Coj ntawm cov chaw tsim khoom, Continental Structural Plastics Inc., Probir Guha, piav qhia txog vim li cas rau kev suav nrog cenospheres hauv cov khoom sib xyaw, hauv kev hais tias, "cov qauv SMC raug rau hom kev thov tsheb no suav nrog 20% los ntawm cov iav ntim. fiber reinforcement, 35% resin thiab 45% muab tub lim, feem ntau calcium carbonate," ntxiv hais tias, "Qhov tshiab SMC [daim ntawv molding compound] yog tus nqi sib tw nrog txhuas."
Cenospheres hauv pob zeb
Tau ntau xyoo, cenospheres tau ua ib qho tseem ceeb ntxiv rau pob zeb, muab lub zog ntxiv, thiab lub suab rwb thaiv tsev, thaum tseem txo qis. Jeff Girard, Thawj Tswj Hwm ntawm Lub Tsev Haujlwm Ua Haujlwm Ua Haujlwm, piav qhia cov txiaj ntsig no, hais tias, "Hauv txoj kev xav, cenospheres tuaj yeem hloov qee cov xuab zeb hnyav uas siv hauv pob zeb. Cenospheres muaj qhov ntom ntom uas tsawg dua dej (qhov nruab nrab 0.7 vs. Dej's 1.0); quartz xuab zeb hais feem ntau muaj qhov ntom ntawm li 2.65. Qhov no txhais tau hais tias 1 phaus ntawm cenospheres siv tib lub ntim tag nrho li ntawm 3.8 lbs. ntawm xuab zeb."
Industrie & Technologies, kuj qhia txog kev siv cenospheres los ua ib qho kev txo qis suab nrov, hais tias, "[Cenospheres tau siv] hauv cov khoom siv hauv tsev los ua kom cov pob zeb sib zog, thaum tuav lub zog compressive ntawm 30 MPa ntawm qhov ceev ntawm 1.6 T / m3. , txhim kho lawv nruj thiab txo lawv cov suab sib kis. Piv txwv li, St. Petersburg Scientific and Technical Center of Applied Nanotechnologies (STCAN) tau koom tes nrog kev tsim cov choj nrog cov pob zeb zoo li no hauv Russia, [rau txoj kev ntsiag to]. Cenospheres kuj tseem siv los txhim kho cov thermal thiab suab rwb thaiv tsev zoo ntawm plasters, mortars thiab plasters, siv rau phab ntsa, pem teb thiab qab nthab. Ib qho ntxiv ntawm 40% ntim cenospheres ib nrab ntawm lub suab sib kis coefficient. "
Cenospheres hauv Pharmaceuticals
Cenospheres tau siv nyob rau hauv kev lag luam kws tshuaj tau ntau xyoo, vim hais tias cov pob me me tuaj yeem ua raws li cov khoom siv thauj khoom nyob ze thaum coated nrog tshuaj. Tsis tas li ntawd, raws li Fab Kis kev lag luam phau ntawv xov xwm, Industrie & Technologies, sau tseg, "Cenospheres npog nrog nyiaj oxide yuav, piv txwv li, yuav muab tso rau hauv hnav khaub ncaws txhawm rau txhawm rau txhawm rau kho qhov txhab."
Cenospheres hauv Advanced Industries
Kev tshawb fawb ntau heev tau ua los tshawb pom kev siv tshiab rau qhov khoom siv ntau yam no. Piv txwv li, cov catalysts tshiab rau cov txheej txheem methane oxidation yog tsim los siv magnetic cenospheres.
Cenospheres kuj tseem siv rau hauv kev tsim cov hlau matrix composites (MMC), ntau yam ntaub ntawv uas sim ua ke kom muaj zog nqus, cuam tshuam tsis zoo, thiab qhov ntom ntom ntawm cov spheres nrog cov khoom zoo ntawm lwm yam khoom. Lwm tus, xws li Paul Biju-Duval ntawm Georgia lub koom haum thev naus laus zis nyob hauv Atlanta, tau ua haujlwm hnyav hauv kev tsim cov khoom siv hauv tsev tsis muaj cement. Nws txoj hauj lwm txuas ntxiv mus, ntxiv rau kev sib xyaw ntawm cenosphere, cov khoom xws li xyoob thiab hlau tubing raws li txoj hauv kev los nrhiav lwm txoj hauv kev, pheej yig dua, muaj zog dua, thiab ntau txoj kev tsim kho ib puag ncig.
Lub caij no, lub koom haum ntawm Chemistry thiab Chemical Technology ntawm Lavxias Academy ntawm Sciences nyob rau hauv Krasnoyarsk, tab tom kawm txog txoj kev uas cenospheres yuav siv tau nyob rau hauv catalytic transformations. Thaum lub tshuab BAE tab tom sim siv cenospheres hauv cov xim ua ib txoj hauv kev los txhawb kev pom tsis pom hauv infrared spectrum, yog li ua rau cov tub rog khoom siv tes ua kom muaj 'invisibility cloaks'.
Nrog rau ntau yam kev siv, thiab ntau qhov kev siv ntau dua, nws tsis xav tias yog vim li cas qhov kev txaus siab hauv cenospheres loj tuaj. Tsuav yog cov neeg tsim khoom lag luam tab tom nrhiav lub teeb yuag yuag, txhim kho cov khoom xa tuaj, txhim kho cov txheej txheem, cov cement hloov, thiab cov khoom sib xyaw ua ke, ces yuav muaj kev xav tau ntawm cenospheres. Ntxiv nrog rau kev tshawb fawb ntxiv rau hauv kev siv tshiab rau cov ntau yam spheres no, tsuas yog lub sijhawm yuav qhia qhov twg yav tom ntej ntawm cenospheres nyob.
Post lub sij hawm: Dec-28-2021