Agglomeration mechanism ntawm nanocov khoom

Lub agglomeration ntawm nanopowders yog hais txog qhov tshwm sim uas cov thawj nano hais yog txuas rau ib leeg thaum lub sij hawm txheej txheem ntawm kev npaj, sib cais, ua thiab cia, thiab loj particles yog tsim los ntawm ntau yam hais.

Agglomeration muab faib ua hom mos thiab tawv.

Mos agglomeration: yog hais txog pawg lossis cov khoom me me uas tsim los ntawm kev sib txuas thawj cov khoom ntawm cov ntsiab lus lossis cov ces kaum, uas yog adsorbed ntawm cov khoom loj. Nws feem ntau ntseeg tau tias yog tshwm sim los ntawm hluav taws xob zoo li qub thiab Coulomb quab yuam ntawm atoms thiab molecules ntawm cov hmoov av.

Vim li cas mos agglomeration tshwm sim?

Cov nyhuv loj, cov nyhuv hluav taws xob ntog, cov nyhuv ntawm lub zog, cov nyhuv ze ze

Hard agglomeration: hais txog cov ntsiab lus tseem ceeb txuas nrog lub ntsej muag thiab tsis tuaj yeem sib cais yam tsis muaj lub zog sab nraud. Qhov chaw saum npoo yog me dua li qhov sib npaug ntawm thaj chaw ntawm ib qho me me, thiab nws nyuaj heev kom tawg rov qab.

Vim li cas nyuaj agglomeration tshwm sim?

Chemical bond theory, sintering theory, crystal choj theory, deg atom diffusion bond theory 

Txij li thaum rov sib sau ua ke ntawm cov ntaub ntawv nano yog kev zam tsis tau vim lawv cov nuj nqis, lawv tuaj yeem cuam tshuam li cas?

Dispersion ntawm nano hmoov: lub thiaj li hunano hmoov dispersionhais txog cov txheej txheem ntawm kev sib cais thiab dispersing hais nyob rau hauv cov kua nruab nrab thiab uniformly faib thoob plaws hauv cov kua theem, uas feem ntau muaj xws li ntub dej, de-agglomeration thiab stabilization ntawm dispersed hais theem.

Nano hmoov dispersion technologyyogmuab faib ua lub cev thiab tshuajtxoj kev feem ntau.

Lub cev dispersion:

1. Mechanical agitation thiab dispersion muaj xws li sib tsoo, zoo tib yam pob zeb, vibratory pob zeb, colloid zeb, cua zeb, mechanical high-speed stirring

2. Ultrasonic dispersion

3. Kev kho mob siab

Tshuaj dispersion:

1. Kev hloov kho tshuaj deg: coupling tus neeg sawv cev txoj kev, esterification cov tshuaj tiv thaiv, txoj kev hloov kho deg graft

2. Dispersant dispersion: feem ntau yog los ntawm dispersant adsorption los hloov cov nqi xa tawm ntawm cov khoom, ua rau electrostatic stabilization thiab steric barrier stabilization kom ua tiav cov nyhuv dispersion.

Zoo dispersion yog kauj ruam tseem ceeb kom ua tiav cov khoom zoo tshaj plaws ntawm cov ntaub ntawv nano. Nws yog tus choj ntawm nano cov ntaub ntawv thiab kev siv tswv yim.

Hongwu Nano kuj muaj cov kev pabcuam customization los ua nano hmoov dispersion.

Vim li cas Hongwu Nano tuaj yeem ua haujlwm hauv daim teb no?

1. Raws li kev nplua nuj nyob hauv kev ua haujlwm ntawm nanomaterials

2. Cia siab rau Advanced nano technology

3. Tsom ntsoov rau kev lag luam-taw qhia kev txhim kho

4. Lub hom phiaj muab kev pabcuam zoo dua rau peb cov neeg siv khoom