Njira ya agglomeration ya nanoparticles

The agglomeration wa nanopowders amatanthauza chodabwitsa kuti pulayimale nano particles olumikizidwa kwa wina ndi mzake pa ndondomeko ya kukonzekera, kulekana, processing ndi kusungirako, ndi lalikulu tinthu masango amapangidwa ndi angapo particles.

Agglomeration imagawidwa mumitundu yofewa komanso yovuta.

Soft agglomeration: amatanthauza masango kapena tinthu tating'onoting'ono tomwe timapanga polumikiza tinthu tating'onoting'ono tomwe timakhala ndi tinthu tating'onoting'ono tomwe timapanga tinthu tating'onoting'ono.Amakhulupirira kuti amayamba chifukwa cha magetsi osasunthika ndi mphamvu ya Coulomb pakati pa ma atomu ndi mamolekyu pamtunda wa ufa.

Chifukwa chiyani agglomeration yofewa imachitika?

Kukula kwenikweni, pamwamba mphamvu zamagetsi, pamwamba mphamvu kwenikweni, pafupi osiyanasiyana zotsatira

Hard agglomeration: amatanthauza particles chachikulu cholumikizidwa ndi nkhope ndipo sangathe kulekana popanda kunja mphamvu.Kumtunda ndi kocheperako kuposa kuchuluka kwa gawo limodzi la tinthu tating'ono, ndipo ndizovuta kwambiri kubalalikanso.

N'chifukwa chiyani agglomeration zovuta zimachitika?

Chemical bond theory, sintering theory, crystal bridge theory, surface atomu diffusion bond theory 

Popeza kuyanjananso kwa zida za nano sikungapeweke chifukwa cha ngongole zawo, angabalalitsidwe bwanji?

Kubalalitsidwa kwa nano ufa: otchedwakupezeka kwa nanopowderamatanthauza ndondomeko kulekanitsa ndi dispersing particles mu madzi sing'anga ndi uniformly anagawira mu madzi gawo, makamaka zikuphatikizapo wetting, de-agglomeration ndi kukhazikika kwa omwazika particles siteji.

Tekinoloje ya Nano powder dispersionndiogaŵikana mu thupi ndi mankhwalanjira zambiri.

Kubalalitsidwa kwathupi:

1. Kusokonezeka kwamakina ndi kubalalitsidwa kumaphatikizapo kugaya, mphero wamba, mphero yonjenjemera, mphero ya colloid, mphero ya mpweya, makina othamanga kwambiri.

2. Akupanga kubalalitsidwa

3. Chithandizo champhamvu kwambiri

Kubalalika kwa Chemical:

1. Kusintha kwa mankhwala apamtunda: njira yolumikizira wothandizira, esterification reaction, njira yosinthira pamwamba

2. Dispersant kubalalitsidwa: makamaka kudzera dispersant adsorption kusintha padziko mlandu kugawa particles, chifukwa mu electrostatic bata ndi wosabala chotchinga bata kukwaniritsa kubalalitsidwa kwenikweni.

Kubalalika bwino ndi gawo lofunikira kuti mukwaniritse bwino kwambiri zida za nano.Ndi mlatho pakati pa zida za nano ndi kugwiritsa ntchito moyenera.

Hongwu Nano imaperekanso ntchito yosinthira makonda kuti apange nano ufa kubalalika.

Chifukwa chiyani Hongwu Nano amatha kugwira ntchito imeneyi?

1. Kutengera olemera zinachitikira m'munda wa nanomaterials

2. Dalirani paukadaulo waukadaulo wa nano

3. Yang'anani pa chitukuko cha msika

4. Cholinga chopereka chithandizo chabwino kwa makasitomala athu