Ultrasonic Technology Dispersed Nanomaterial

Nanoparticles muaj cov khoom me me me me, siab zog, thiab muaj kev xav txog nthawv agglomerate, thiab muaj cov agglomeration yuav zoo heev rau cov superiority ntawm nanopowders. Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum txhim kho lub dispersion thiab stability ntawm nanopowders nyob rau hauv xov xwm ua kua. Kev tshawb nrhiav.

Dispersion ntawm tiam yog ib qho kev qhuab qhia tawm tshiab uas tau tsim xyoo tas los no. Qhov sib txawv ntawm qhov sib xyaw particle dispersion txhais tau hais tias muaj cov txheej txheem uas hmoov hmoov sib cais thiab muab faib rau hauv nruab nrab cov dej ua kua thiab muab faib rau txhua lub sij hawm ua kua, thiab tsuas yog muaj peb theem ntawm kev ntxhib, deagglomeration, thiab kev ruaj ntseg ntawm cov khoom pov tseg. Wetting hais txog cov txheej txheem uas ua rau tus hmoov maj mam ntxiv rau lub vortex uas ua rau lub tshuab ua kom muaj huab cua los yog lwm yam khoom tsis muaj zog adsorbed nyob rau ntawm cov hmoov uas yuav hloov los ntawm cov kua. Deagglomeration hais txog qhov dispersal ntawm loj particle loj aggregates rau hauv me me los ntawm cov neeg kho tshuab los yog ultrasonic. Kev ruaj ntseg yog hais txog kom tsis muaj teeb meem ntawm cov hmoov ua kua hauv cov kua hauv lub sijhawm ntev. Raws li qhov sib txawv ntawm dispersion, lub cev dispersion thiab tshuaj dispersion yuav muab faib. Ultrasonic dispersion yog ib qho ntawm lub cev dispersion txoj kev.

Ultrasonic dispersion txoj kev: Ultrasonic tsis muaj cov yam ntxwv ntawm cov kab nrib nrab luv luv, cov kab ncaj nraim, thiab cov hluav taws xob yooj yim. Ultrasound tuaj yeem ua rau cov tshuaj muaj yees ntau dua, ua kom lub sij hawm ua kom tsawg dua, ua rau lub cev muaj zog ntawm cov tshuaj tiv thaiv; thiab nws tseem tuaj yeem tsim kho tshuaj lom neeg uas tsis tuaj yeem tshwm sim thaum tsis muaj ultrasound. Ultrasonic dispersion yog tso qhov kev ncua kev kawm zauv mus rau kev ua tiav hauv qhov chaw supergeneous, thiab nws kho nrog ultrasonic tsis ntawm lub zaus thiab lub zog, uas yog ib txoj kev siv ntau heev dispersion. Lub mechanism ntawm ultrasonic dispersion yog tam sim dav lug ntseeg tau hais txog cavitation. Ultrasonic yoj propagation raws li nruab nrab. Muaj ib lub sij hawm hloov ntawm qhov zoo thiab tsis pom siab nyob rau hauv tus txheej txheem ntawm ultrasonic yoj propagation nyob rau hauv nruab nrab. Cov xov xwm muab nyem thiab rub tawm hauv lwm txoj kev zoo thiab tsis zoo. Thaum twg ib tug loj txaus amplitude ultrasonic yoj yog thov mus rau ib qho tseem ceeb molecular nrug uas cov kua nruab nrab nyob qhov chaw, cov kua nruab nrab yuav tawg, sib sau microbubbles, thiab microbubbles yuav loj hlob mus rau cavitation npuas. Ntawm qhov one hand, cov npuas no tuaj yeem rov ua dua tshiab hauv cov kua nruab nrab, thiab lawv yuav ntab thiab ploj; lawv kuj yuav tawg los ntawm theem ntawm lub ultrasonic teb sab resonant. Xyaum tau ua pov thawj tias muaj kev pom ntau npaum li cas rau qhov kev faib tawm ntawm qhov kev ncua, thiab nws qhov nqi yog nyob ntawm qhov loj me me ntawm qhov raug txwv. Vim li no, nws yog qhov zoo tshaj plaws kom nres rau ib lub sij hawm tom qab lub sij hawm ncua sij hawm dhau mus, thiab txuas ntxiv mus tshaj tawm nws kom tsis txhob overheating. Cua txias nrog huab cua los yog dej kuj yog ib txoj kev zoo rau kev siv lub cev.