Kev loj hlob sai ntawm kev thov zog thoob ntiaj teb tau ua rau muaj kev tsim cov khoom siv ntuj tsim. Txawm li cas los xij, thee tseem ua lub luag haujlwm tseem ceeb hauv lub ntiaj teb qhov chaw muab zog tseem ceeb. Thee suav txog 29% ntawm kev muab zog thoob ntiaj teb hauv xyoo 2015, thiab kwv yees tias txog xyoo 2035, thee tseem yuav suav txog 24% ntawm lub zog. Raws li cov khoom lag luam ntawm cov chaw tsim hluav taws xob siv thee, cov tshauv ya thee yuav nyob siab ntev.Cov tshauv ya tau dhau los ua qhov chaw txhawj xeeb txog ib puag ncig vim nws muaj cov khoom sib xyaw ua ke thiab kev kho tsis tsim nyog. Tib lub sijhawm, cov tshauv ya thee yog ib qho peev txheej muaj peev xwm, uas xav tau kev siv sai sai. Tam sim no, kev siv cov khoom siv ntawm cov tshauv ya thee muaj ntau yam teb, tab sis tus nqi siv siab yog qis. Lub hauv paus ntawm kev siv siab yog kawm txog cov khoom ntawm cov tshauv ya thee. Cov tshauv ya thee yog tsim los ntawm cov khoom me me lossis khoob amorphous spherical, cov khoom me me tsis kub hnyiab thiab cov khoom me me xws li mullite, quartz, hematite, thiab lwm yam. Muaj qee qhov sib txawv ntawm cov khoom siv lub cev, cov tshuaj lom neeg thiab cov khoom siv minerals ntawm cov tshauv ya thee hauv ntau thaj chaw tsim khoom. Nws txoj kev siv thiab lub hom phiaj kuj tsis zoo ib yam. Cov khoom sib xyaw ua ke ntawm cov tshauv ya thee yog qhov teeb meem loj rau kev siv tus nqi siab. Txawm li cas los xij, cov khoom siv pab tau, xws li hollow microspheres, unburned carbon, cov ntaub ntawv sib nqus, thiab lwm yam tuaj yeem sib cais los ntawm cov khoom sib xyaw ua ke los ntawm cov txheej txheem sib cais tsim nyog. Cov tshuaj lom neeg thiab cov khoom siv minerals ntawm cov tshauv ya yog cov khoom siv raw pheej yig rau cov khoom muaj nqis ntxiv xws li geopolymers, iav-ceramics thiab zeolites. Cov tshuaj lom neeg sib xyaw thiab qhov loj me ntawm cov tshauv ya thee muaj feem cuam tshuam loj rau lub zog ntawm geopolymers. Cov xwm txheej zoo tshaj plaws yuav tsum tau txiav txim siab raws li kev xav txog cov khoom tseem ceeb ntawm cov tshauv ya thee thaum npaj geopolymers. Raws li cov tshuaj lom neeg sib xyaw ntawm cov tshauv ya thee, cov iav-ceramics npaj los ntawm cov tshauv ya thee feem ntau muaj ob lub tshuab: CaO-Al2O3-SiO2 thiab MgO-Al2O3-SiO2, tab sis kev siv zog ntawm txoj kev npaj yog qhov siab heev. Txoj kev sintering ncaj qha nrog kev siv zog tsawg tseem yuav tsum tau kawm ntxiv thiab nrov. Muaj ntau qhov kev sim siv ntawm zeolite synthesized los ntawm cov tshauv ya thee, tab sis ob peb qhov kev sim hauv kev lag luam tau ua tiav. Kev tshawb fawb theoretical ntawm kev npaj cov kev sim mesoporous silica thiab silica aerosol tsis tau ua tiav txaus, cov xwm txheej nyuaj rau tswj, thiab tseem muaj txoj kev ntev ua ntej kev tsim khoom lag luam.
Lub sijhawm tshaj tawm: Lub Peb Hlis-09-2022