Lab Ultrasonic Nanoparticle Dispersion

Lab Ultrasonic Nanoparticle Dispersion

Cov ntsiab lus tseem ceeb ntawm ultrasonic nanotechnology yog yuav daws qhov teeb meem ntawm agglomeration ntawm nanoparticles li cas.

Txij li thaum nanoparticles yooj yim rau agglomerate, nws yog ib qho nyuaj heev kom tau txais ib qho nanoparticles dispersed.

Yuav ua li cas rau uniformly disperse nanoparticles rau hauv lub matrix yog lub ntsiab technology ntawm nanotechnology. .

Peb series ntawm ultrasonic khoom siv lub cavitation ntawm ultrasonic tsis mus disperse agglomerated hais.

Nws tso cov particle ncua kev kawm ntawv (kua) ua tiav rau hauv lub suab nrov ultra-muaj zog thiab ua haujlwm nrog qhov tsim nyog ultrasonic amplitude.

Vim muaj cov yam ntxwv ntawm cov hmoov particle agglomeration, rau qee cov hmoov uas tsis tawg zoo nyob rau hauv nruab nrab, qhov tsim nyog tus nqi ntawm dispersant tuaj yeem muab ntxiv kom muaj lub xeev dispersion ruaj khov, uas feem ntau tuaj yeem ncav cuag kaum nanometers lossis txawm me dua.

Cov khoom no tshwj xeeb tshaj yog nws muaj txiaj ntsig zoo ntawm cov khoom siv nano (xws li carbon nanotubes, graphene, silica, thiab lwm yam).

Ultrasonic dispersion hais txog cov txheej txheem ntawm dispersing thiab de-agglomerating hais nyob rau hauv cov kua los ntawm "cavitation" nyhuv ntawm ultrasonic tsis nyob rau hauv cov kua siv cov kua ua ib tug nruab nrab.

Raws li lub cev txhais tau tias thiab cov cuab yeej, ultrasonic thev naus laus zis tuaj yeem tsim ntau yam huab cua hauv cov kua.

Qhov tshwm sim no yog hu ua sonochemical kev txiav txim, thiab cov khoom siv ultrasonic cuam tshuam yog hu ua ultrasonic sonochemical khoom (hu ua "acoustic chemical equipment"). .

Cov khoom siv ultrasonic dispersion yog ib daim ntawv thov ntawm cov khoom siv sonochemical, uas tuaj yeem siv rau kev kho dej, khoom-kua dispersion, particle agglomeration hauv cov kua, thiab txhawb cov khoom-kua tshuaj.
Qhov tshwm sim ntawm cov khoom tsiv teb tsaws ntawm tus kheej vim yog thermal txav ntawm cov khoom (atoms, molecules lossis pawg ntawm cov molecules) hu ua "diffusion".

Diffusion tuaj yeem ua tiav hauv ib theem ntawm cov khoom, kua, thiab roj hauv tib yam khoom, lossis ntawm cov khoom sib txawv, kua, thiab roj. Nws feem ntau tshwm sim los ntawm qhov sib txawv ntawm qhov concentration lossis kub.

Feem ntau, nws diffuses los ntawm cheeb tsam nrog ntau dua concentration mus rau cheeb tsam nrog qis concentration, kom txog rau thaum lub concentration ntawm txhua feem nyob rau hauv lub theem mus txog uniform los yog cov concentration ntawm ob theem mus txog equilibrium.

Thaum cov ntaub ntawv ncaj qha sib cuag, lawv tau hais tias tsis muaj kev cuam tshuam. Diffusion yog hu ua permeation yog tias nws tshwm sim los ntawm kev thaiv.

Diffusion plays lub luag haujlwm tseem ceeb hauv qhov xwm txheej, thiab nws ua kom cov huab cua nyob ib puag ncig tag nrho ntawm lub ntiaj teb zoo ib yam. Lub diffusion ntawm ntau yam ntsev daws nyob rau hauv cov av yog ib qho yooj yim rau cov nroj tsuag kom nqus tau thiab pab txhawb kev loj hlob. Tsis tas li ntawd, diffusion yog siv rau ntau yam lag luam xws li semiconductor thiab metallurgy. Diffusion, tshav kub conduction thiab viscosity feem ntau hu ua kev thauj phenomena. Nws txav qhov teeb meem (ntau), thermal zog, thiab lub zog ntawm ib txoj hauj lwm mus rau lwm qhov. Yuav kom ua tau raws li cov concentration los yog kub.

Ultrasonic dispersion tuaj yeem muab faib ua emulsion dispersion (kua-kua dispersion) thiab tshem tawm dispersion (khoom-kua dispersion), thiab tau siv rau ntau qhov chaw.

Daim ntawv thov ntawm ultrasound rau dispersion ntawm ncua kev kawm ntawv kuj muaj xws li: dispersion ntawm titanium oxide thiab cov zoo li nyob rau hauv dej los yog cov kuab tshuaj nyob rau hauv lub txheej kev lag luam, dispersion ntawm dyes nyob rau hauv molten paraffin, dispersion ntawm cov tshuaj hais nyob rau hauv kev lag luam tshuaj, thiab hmoov emulsions nyob rau hauv cov khoom noj. kev lag luam. Disperse lwm yam.

Cim npe nrov: lab ultrasonic nanoparticle dispersion, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, kev cai