Siv Ultrasound los tsim Graphene

Graphene yog cov khoom siv tshiab uas cov pa roj carbon atom txuas nrog sp hybridization tau kaw zoo rau hauv ib qho - txheej ob - qhov ntev ntawm honeycomb lattice qauv. Nws muaj zoo heev optical, hluav taws xob thiab mechanical zog. Nws muaj qhov tseem ceeb ntawm daim ntawv thov kev cia siab hauv tshuaj thiab xa tshuaj. Kev siv tshuab ultrasonic tuaj yeem txhim kho cov exfoliation ntawm graphene, uas yog ib qho tseem ceeb txuas rau kev npaj thiab kev siv ntawm graphene.

Lub hauv paus ntsiab lus ntawm kev npaj ultrasonic ntawm graphene:

Hloov hluav taws xob hluav taws xob mus rau lub zog suab los ntawm lub tshuab hluav taws xob, thiab lub zog no dhau los ntawm cov kua nruab nrab thiab ua npuas me me. Cov npuas me me no tawg sai sai thiab tsim lub zog zoo li cov mos txwv me, yog li rhuav tshem cov hlwb thiab lwm yam khoom. nyhuv. Ultrasonic yog ib hom elastic mechanical yoj nyob rau hauv cov khoom nruab nrab, nws yog ib tug yoj daim ntawv, yog li nws yuav siv tau los xyuas cov physiological thiab pathological ntaub ntawv ntawm tib neeg lub cev, uas yog, kuaj ultrasound. Nws kuj yog ib daim ntawv ntawm lub zog. Thaum ib koob tshuaj ntawm ultrasound propagates nyob rau hauv lub cev, los ntawm kev sib cuam tshuam ntawm lawv, nws muaj peev xwm ua rau kev hloov nyob rau hauv lub functionality thiab qauv ntawm lub cev, uas yog, cov nyhuv ultrasonic. Cov teebmeem ntawm ultrasound ntawm cov hlwb feem ntau suav nrog cov teebmeem thermal, cov teebmeem cavitation thiab cov teebmeem.

Cov txheej txheem ntawm kev npaj graphene los ntawm ultrasonic graphene ntau lawm cov khoom:

1. Sib sau ua ke ntawm ultrasonic tsav fais fab mov, lub cev reactor, ultrasonic vibrator, cov khoom inlet thiab cov khoom twj tso kua mis.

2. Txuas cov dej txias rau cov dej nkag mus rau cov dej sab nraud, lub qhov hluav taws xob cua txias rau lub qhov hluav taws xob sab nraud, thiab kaw cov khoom ntws tswj valve, pub tswj valve, tawm tswj valve thiab sampling chaw nres nkoj tswj valve.

3. Siv graphite ua raw khoom, siv pre - intercalation kom tau nthuav graphite nrog ib tug tsawg degree ntawm oxidation, thiab ntxiv rau ib co organic hnyav los yog dej los tsim graphene pretreatment tov.

4. Nrog kev pab los ntawm ultrasonic tsis, cua sov los yog airflow, ib tug zoo - dispersed graphene dispersion tau.

5. Lub dispersion yog ces sib cais los ntawm ib tug centrifuge los yog raug rau siab pom los ntawm lub lim xovxwm kom tau graphene micro - nplooj ntawv.

Thaum cov graphene thiab cov organic hnyav saum npoo sib phim, lawv cov kev sib cuam tshuam tuaj yeem sib npaug ntawm lub zog uas yuav tsum tau ua kom tshem tawm cov graphene flakes, thiab tom qab ntawd ua tiav los ntawm cov khoom siv ultrasonic graphene npaj. Ua kom lub sij hawm sonication tuaj yeem txhim kho cov txiaj ntsig graphene.