Dab tsi yog ultrasonic emulsification khoom?

Cov khoom siv ultrasonic emulsification yog cov cuab yeej siab - tech cov khoom siv uas siv siab - zaus ultrasonic lub zog kom ua tiav cov kev sib xyaw ua ke thiab emulsification kua. Piv nrog cov kev ua yeeb yam emulsification cov txheej txheem xws li kev siv tshuab stirring thiab siab - Nws tau dhau los ua cov txheej txheem txheej txheem ntawm cov khoom noj, cov tshuaj, tshuaj pleev ib ce, thiab tshuaj lom neeg.

Ultrasonic emulsification thev naus laus zis los ntawm nruab nrab - 20th caug xyoo thiab tau txuas ntxiv los txhim kho nrog kev nce qib ntawm lub zog ultrasonic thev naus laus zis. Cov khoom siv ultrasonic emulsification tau tsim los ntawm kev kuaj cov tshuab ntsuas kev lag luam, nrog kev siv peev xwm los ntawm ob peb lab, ntsib cov kev siv ntau yam uas xav tau ntawm kev lag luam sib txawv.

1. Tub ntxhais ua haujlwm ua haujlwm
Cov tub ntxhais ua haujlwm ua haujlwm ntawm ultrasonic emulsification yog raws li "acoustic cavitation" nyhuv. Thaum high - kev siv ultrasonic vuag (feem ntau nyob rau hauv cov zaus ntau ntawm 20kHz - 100kHz) tau sib hloov mus rau qhov nruab nrab ntawm cov kua hluav taws xob, hloov siab - cov khoom siab tau tsim hauv cov kua. Hauv qhov tsawg - Siab theem siab, lub tshuab nqus tsev me me yog tsim hauv cov kua; Nyob rau hauv lub siab siab - theem siab, cov npuas vau sai, tsim kom muaj kev kub siab hauv zos (txog 5000atm) thiab muaj zog poob siab.

Qhov no ua txhaum cavitation nyhuv:

Txhaum cov khoom tawg ua kom tawg
Txhawb cov khoom sib pauv ntawm ob theem cuam tshuam
Cuam tshuam loj dua rau saum npoo nro
Txhim kho Emulsification Stability

2. Cov khoom lag luam yooj yim ntawm cov khoom siv
Kev ua tiav ultrasonic emulsification system feem ntau suav nrog cov ntsiab lus hauv qab no:

Ultrasonic Generator: Hloov Cov Hluav Taws Xob Loj rau hauv cov teeb tsa hluav taws xob siab - Cov hluav taws xob cov cim, nrog kev kho kom haum thiab lub zog
Chaw Sib Tw Hloov Chaw: Hloov Hluav Taws Xob Hluav Taws Xob rau mus rau hauv cov neeg kho tshuab kev co, feem ntau yog siv piezoeltric cov ntaub ntawv ceramic
Amplifier (Kev sojntsuam): Amplifies cov amplitude ntawm kev siv tshuab kev co thiab ncaj qha rau ntawm kev kho mob nruab nrab
Kev Kho Mob Ntaus: Tsim raws li cov txheej txheem yuav tsum tau ua, nrog lub tsho txias / cua sov
Tswj Txheej Txheem: Tshawb nrhiav parameter, txheej txheem tshuaj xyuas thiab cov ntaub ntawv kaw cia

3.Com khoom nrog cov kev ua yeeb yam emulsification, ultrasonic emulsification muaj ntau yam zoo:

3.1. Zoo heev emulsionification Zoo: tuaj yeem npaj emulsions nrog qib me me (mus txog rau theem nanometer) thiab nqaim kev faib tawm, thiab qhov chaw ruaj khov
3.2. Muaj cov txheej txheem tswj tau: kev tswj xyuas tau meej yog tiav los ntawm kev kho cov tsis muaj xws li lub zog, zaus, thiab ua lub sijhawm ua haujlwm
3.3. Kev siv zog ua haujlwm siab: lub zog ncaj qha ua rau cov emulsification system, cua sov poob yog me me, thiab kev siv zog yog txo los ntawm 30 - 50%
3.4. Sijhawm Sijhawm: Feem ntau tsuas yog ob peb feeb los ua tiav cov txheej txheem emulsification
3.5. Ntau yam ntawm cov ntawv thov: tuaj yeem tswj siab viscosity thiab cov xwm txheej cov ntsiab lus tshuab, thiab yog tus phooj ywg rau shear - Cov tshuaj muaj rhiab
3.6. Kev Tu Kom Yooj Yim thiab Kev Txij Nkawm: Tsis muaj cov qauv sib xyaw ua ke, txo cov kuab paug muaj kuab paug, thiab ua tau raws GMP cov kev xav tau
3.7. Tuaj yeem siv ua ke nrog lwm cov thev naus laus zis: Yooj yim sib txuas nrog microfluidics, mem caj dab los ua cov txheej txheem sib xyaw