Ultrasonic Homogenizers: Lub Khawv Koob Khawv Koob Los Xauv Lub Dispersion Ntawm Nanomaterials

Ntawm ntau txoj hauv kev los daws cov agglomeration ntawm nanomaterials, ultrasonic homogenizers tau tshwm sim los ua cov cuab yeej muaj zog rau cov kws tshawb fawb thiab cov neeg tsim khoom lag luam. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm ultrasonic homogenizers yog raws li cov teebmeem ntawm lub cev tsim los ntawm ultrasound hauv cov kua nruab nrab, feem ntau suav nrog cavitation thiab lwm yam teebmeem ntawm lub cev. Cov teebmeem no ua haujlwm synergistically kom ua tau zoo dispersion ntawm nanomaterials.

 

Cavitation yog lub luag haujlwm tseem ceeb ntawm ultrasonic homogenizers. Thaum ultrasound propagates hauv cov kua, nws tsim alternating siab -siab thiab qis- cheeb tsam siab. Hauv thaj tsam qis - siab, qhov kev ncua deb ntawm cov kua molecules nce, tsim cov kab noj hniav me me. Cov kab noj hniav no nthuav dav sai heev, ua npuas ncauj cavitation. Nyob rau tom ntej siab - cheeb tsam siab, lub cavitation npuas yuav raug mob compression thiab sai sai. Cov txheej txheem no tshwm sim hauv ib lub sijhawm luv luv. Kev tawg sai sai ntawm cov npuas cavitation ua rau lub cev muaj zog hauv zos, xws li kub txog ntau txhiab degrees Celsius thiab kev kub ntxhov ntawm ntau txhiab tus huab cua, nrog rau cov microjets muaj zog thiab kev poob siab tsis muaj zog nrog ceev mus txog 100 m / s. Qhov kev tawm dag zog loj no txaus los rhuav tshem cov agglomeration rog ntawm nanomaterials, ua rau cov agglomerated nanoparticles rau redisperse.

 

Dhau li ntawm cavitation, ultrasound generates ib tug series ntawm lub cev cov teebmeem uas pab nyob rau hauv dispersion ntawm nanomaterials. Nyob rau hauv lub cuam tshuam ntawm ultrasound, zoo agitation thiab txaus tshwm sim nyob rau hauv cov kua. Qhov kev khiav no ua rau muaj kev sib tsoo ntawm nanoparticles thiab nruab nrab ntawm nanoparticles thiab kua molecules. Los ntawm cov kev sib tsoo no, microphase ntws, thiab kev poob siab tsis zoo, qhov chaw morphology ntawm cov khoom hloov pauv, ntxiv cuam tshuam rau lawv cov qauv sib sau. Qhov kev sib xyaw ua ke no pab txhawm rau txhawm rau faib cov nanoparticles hauv cov kua nruab nrab, tiv thaiv lawv los ntawm kev sib sau ua ke. Ultrasonic vibrations kuj hloov cov nqi faib rau saum npoo ntawm nanoparticles, ua rau cov electrostatic repulsion ntawm cov hais, yog li txhim kho cov stability ntawm nanomaterial dispersion system.

 

Nws cov ntawv thov tau ci ntsa iab.

Nyob rau hauv lub zog tshiab sector, lithium roj teeb, raws li ib tug ntawm cov feem ntau lug siv lub zog cia khoom, yog ib qho tseem ceeb rau txoj kev loj hlob ntawm industries xws li tshiab zog tsheb thiab portable electronics. Ultrasonic homogenizing khoom plays lub luag hauj lwm tseem ceeb hauv dispersion ntawm lithium roj teeb electrode cov ntaub ntawv, ho txhim kho roj teeb kev ua tau zoo.

 

Ultrasonic homogenizers tuaj yeem siv rau hauv kev npaj ntawm lithium roj teeb electrolytes. Los ntawm kev siv ultrasonic kev kho mob, additives nyob rau hauv lub electrolyte yog tusyees dispersed, kev ua tau zoo ntawm cov electrolyte yog optimized, thiab tag nrho cov kev ua tau zoo ntawm lub roj teeb yog ntxiv txhim kho.

 

Hauv thaj chaw biomedical, cov cuab yeej ultrasonic homogenization kuj tau siv dav thiab tseem ceeb heev, tshwj xeeb tshaj yog nyob rau hauv kev npaj ntawm nanomedicine nqa thiab biosensors.

 

Nanoparticles, raws li ib qho kev xa tshuaj tshiab, tuaj yeem txhim kho kev siv tshuaj zoo thiab txo cov tshuaj toxicity. Feem ntau nanoparticles muaj liposomes, nanoparticles, thiab nanomicelles. Cov neeg nqa khoom no feem ntau encapsulate cov tshuaj hauv cov qauv nanoscale thiab xa mus rau qhov chaw mob ntawm cov ntshav ncig. Hauv kev npaj ntawm nanoparticles, ultrasonic homogenizers tuaj yeem ua tiav kev sib xyaw ua ke thiab dispersion ntawm cov tshuaj thiab cov khoom siv thauj khoom, kev tswj xyuas qhov me me thiab morphology ntawm cov cab kuj. Noj cov liposomes ua piv txwv, cov nyhuv cavitation ntawm ultrasound tuaj yeem ua rau cov khoom siv lipid xws li phospholipids tsim cov hlwv me me hauv cov kua dej, encapsulating cov tshuaj hauv lawv. Liposomes npaj los ntawm ultrasound muaj cov yam ntxwv ntawm qhov loj me me thiab kev ruaj ntseg zoo, uas tuaj yeem txhim kho cov kev siv tshuaj encapsulation, ua rau lawv muaj kev ruaj khov hauv vivo, txo cov tshuaj tso tawm mus rau hauv cov ntaub so ntswg uas tsis yog - cov hom phiaj, thiab ua tiav cov tshuaj xa mus. Kev sim cov ntaub ntawv qhia tau hais tias nanoparticles npaj siv ultrasonic homogenizers tuaj yeem ua tiav cov tshuaj encapsulation efficiency ntau dua 80%, uas yog 20% ​​-30% siab dua li cov txheej txheem npaj ib txwm, txhim kho kev siv tshuaj.

Hauv cov ntaub ntawv hluav taws xob, cov khoom siv semiconductor thiab cov khoom siv hluav taws xob yog cov ntaub ntawv tseem ceeb rau kev tsim khoom siv hluav taws xob. Ultrasonic homogenizing khoom plays lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom sib xws thiab cov khoom siv hluav taws xob ua haujlwm thaum lawv npaj.

 

Cov khoom siv hluav taws xob yog cov khoom sib xyaw ua ke ntawm cov hmoov hlau, cov khoom siv organic, thiab cov khoom siv ntxiv, dav siv hauv kev tsim cov ntawv luam tawm, tuab - zaj duab xis integrated circuits, thiab cov khoom siv hluav taws xob. Thaum lub sij hawm npaj cov khoom siv hluav taws xob, cov khoom siv ultrasonic homogenizing ua rau cov khoom tawg yooj yim ntawm cov hmoov hlau (xws li cov hmoov nyiaj thiab tooj liab hmoov) hauv cov cab kuj organic, tiv thaiv agglomeration. Siv cov tshuaj txhuam hniav ua piv txwv, cov hmoov sib tov sib xyaw ua ke tuaj yeem tsim cov denser thiab txuas ntxiv txuas ntxiv, txhim kho cov conductivity thiab adhesion ntawm cov khoom siv hluav taws xob. Hauv kev tsim cov ntawv luam tawm cov ntawv luam tawm, siv ultrasonically homogenized nyiaj muab tshuaj txhuam ua kom pom tseeb dua, kev ua haujlwm ruaj khov dua, txo qis qhib circuits thiab luv circuits, thiab txhim kho qhov zoo thiab kev ntseeg siab ntawm cov ntawv luam tawm Circuit Board. Tsis tas li ntawd, cov cuab yeej ultrasonic homogenizing tuaj yeem tswj tau cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob los ntawm kev kho cov txheej txheem, ua rau lawv tsim nyog rau cov txheej txheem luam ntawv sib txawv thiab ntxiv txhim kho kev tsim khoom thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob.