Agglomeration mechanism ye nanozvimedu

Iyo agglomeration ye nanopowders inoreva chiitiko chekuti maprimary nano particles akabatana kune mumwe nemumwe panguva yekugadzirira, kupatsanura, kugadzirisa uye kuchengetedza, uye makuru masumbu masumbu anoumbwa neakawanda zvidimbu.

Agglomeration yakakamurwa kuita mhando dzakapfava uye dzakaoma.

Soft agglomeration: inoreva masumbu kana zvidimbu zvidiki zvinoumbwa nekubatanidza zvidimbu zvekutanga pamapoinzi kana makona, ayo anoshambadzirwa pazvimedu zvakakura.Inowanzo fungidzirwa kuti inokonzerwa nemagetsi akamira uye simba reCoulomb pakati peatomu nemamorekuru ari pamusoro pehupfu.

Sei nyoro agglomeration ichiitika?

Saizi mhedzisiro, pamusoro pemagetsi maitiro, pamusoro pesimba mhedzisiro, yepedyo renji maitiro

Hard agglomeration: inoreva zvikamu zvekutanga zvakabatanidzwa nezviso uye hazvigone kupatsanurwa pasina simba rekunze.Nzvimbo yekumusoro idiki pane huwandu hwenzvimbo yeimwe chete chidimbu, uye zvakanyanya kuoma kupararira zvakare.

Sei zvakaoma agglomeration zvichiitika?

Chemical bond theory, sintering theory, crystal bhiriji theory, pamusoro atomu diffusion bond theory. 

Sezvo kubatanidzwazve kwezvinhu zvenano zvisingadzivisiki nekuda kwezvikwereti zvavo, zvingaparadzirwe sei?

Kupararira kwe nano powders: iyo inonzinanopowder dispersioninoreva maitiro ekuparadzanisa uye kuparadzira zvimedu mukati memvura yepakati uye zvakafanana kugoverwa mukati mechikamu chemvura, izvo zvinonyanya zvinosanganisira kunyorova, de-agglomeration uye kudzikamisa kweakapararira particles nhanho.

Nano powder dispersion tekinorojindizvoyakakamurwa kuva muviri uye makemikarinzira kazhinji.

Kupararira kwenyama:

1. Mechanical agitation and dispersion zvinosanganisira kukuya ,wowo zvake bhora rehuyo, vibratory ball mill, colloid mill, air mill, mechanical high-speed kurunga.

2. Ultrasonic kupararira

3. Kurapa kwepamusoro-simba

Kemikari dispersion:

1. Kugadziriswa kwekemikari yepamusoro: nzira yekubatanidza agent, esterification reaction, pamusoro pekugadzirisa maitiro

2. Disperant dispersion: kunyanya kuburikidza ne disperant adsorption kushandura kugoverwa kwepamusoro pechaji yezvikamu, zvichiita kuti electrostatic stabilization uye steric barrier stabilization kuti ibudirire kupararira.

Well dispersion inhanho yakakosha yekuwana zvakanakisa zvivakwa zve nano zvinhu.Ibhiriji pakati penano zvinhu uye inoshanda application.

Hongwu Nano inopawo iyo yekugadziridza sevhisi kugadzira nano hupfu kupararira.

Sei Hongwu Nano achigona kushanda mundima iyi?

1. Kubva pane ruzivo rwakapfuma mumunda wenanomaterials

2. Vimba neAdvanced nano teknolojia

3. Tarisa pakuvandudza kwakanangana nemusika

4. Chinangwa chekupa basa riri nani kune vatengi vedu