Ultrasound Dispersing Nanometer Fission Materials

Nano particle loj me me, siab deg zog, rov koom nrog qhov kev nyiam, thiab lub neej ntawm kev rov sib tshua yuav zoo heev rau kev ua si ntawm qhov zoo ntawm nano hmoov, li cas los txhim kho lub dispersion thiab stability ntawm nano hmoov hauv cov dej nruab nrab yog kev kawm tshawb fawb tseem ceeb.

Particle dispersion yog ib qho tshiab txheej txheem tshiab nyob hauv xyoo tas los. Particle dispersion yog hais txog kev sib cais ntawm cov hmoov ua kua hauv nruab nrab thiab kis tawm hauv cov dej ua kua dej ua ke, xws li ntxig, kev sib txuas ntawm lub cev thiab kev ruaj ntseg ntawm cov khoom faib rau peb theem. Wetting yog tus txheej txheem uas los ntawm huab cua lossis lwm hom impurities rau ntawm cov hmoov av yog hloov los ntawm cov kua. Cov tshuaj ntawm agglomeration hais txog cov dispersing ntawm loj particle loj rau me me los ntawm kev kho tshuab los yog superorganism. Kev ruaj ntseg yog los xyuas kom meej tias cov hmoov hmoov yog sib npaug hauv cov kua ua kom ntev. Raws li cov dispersion txoj kev, nws yuav muab faib ua lub cev dispersion thiab tshuaj dispersion. Ultrasonic dispersion yog ib qho ntawm lub cev dispersion txoj kev.

Ultrasonic dispersion hom: ultrasonic yoj muaj cov yam ntxwv ntawm cov kab nrig luv luv, cov yeeb yaj kiab uas nyob ze thiab cov ntsiab lus yooj yim. Ultrasonic yoj muaj peev xwm ua kom cov tshuaj muaj nqi, ua kom lub sij hawm luv luv thiab txhim kho kom muaj kev ras txog ntawm cov tshuaj tiv thaiv. Nws tseem tuaj yeem tsim kho tshuaj lom neeg uas tsis tshwm sim thaum tsis muaj ultrasound. Ultrasonic dispersion yog ib hom dispersing txoj kev siab siv, uas yuav kho tau los ntawm ultrasonic yoj nrog cov zaus tsim nyog thiab lub zog. Lub mechanism ntawm ultrasonic dispersion feem ntau ntseeg tau hais txog cavitation. Lub propagation ntawm ultrasonic tsis yog kwv los ntawm cov nruab nrab, thiab muaj ib lub sij hawm alternating ntawm qhov zoo thiab tsis pom zoo nyob rau hauv cov propagation ntawm ultrasonic tsis nyob hauv nruab nrab. Qhov nruab nrab muab nyem thiab rub los ntawm kev hloov siab thiab qhov tsis zoo. Thaum siv loj amplitude ntawm lub ultrasonic txaus ua hauj lwm ntawm cov kua nruab nrab tseem ceeb heev tseem nyob qhov qub, kua nruab nrab pob txha tshwm sim, tsim kev ua npuas ncauj, ua npuas dej ntxiv kom loj hlob tuaj ua cavitation npuas. Cov npuas no muaj peev xwm muab rov qab rau hauv cov kua nruab nrab, thiab yuav ntab thiab ploj. Nws tseem yuav raug cais los ntawm cov theem ntawm lub cheeb tsam ultrasonic. Nws muaj pov thawj los ntawm kev xyaum hais tias muaj qhov zoo tshaj plaws zaus rau qhov kev faib tawm ntawm cov khoom khib nyiab, thiab nws cov nqi yog txiav txim tau los ntawm qhov loj me me ntawm cov khoom raug tshem tawm. Vim li no, nws yog qhov zoo dua uas yuav tsum txiav ib lub sij hawm ntawm lub sij hawm tom qab lub sijhawm, thiab tom qab ntawd ua rau overlive, kom tsis txhob overheating. Nws kuj yog ib txoj hauv kev zoo los siv huab cua lossis dej los txias.