Screening method and screening device for screening nano materials
A technology of nanomaterials and screening equipment, applied in chemical instruments and methods, solid separation, separation of solids from solids by air flow, etc., can solve problems such as nanomaterial screening
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[0024] The invention provides a screening method for nanometer materials, comprising the following steps: using ion wind to blow the nanometer materials, dispersing the nanometer materials and separating the nanomaterials in different particle size ranges. The nanomaterial is any one of carbon nanospheres, carbon nanotubes, nano oxide particles, nano metal particles and graphene. The wind volume of the ion wind is 35-600CFM. The sieving method also includes setting at least one nanometer material collecting device along the wind blowing direction, and the nanometer material collecting device is used to collect the nanometer material within a certain particle size range. The ionic wind can promote the electrical neutralization of nanomaterials and prevent the agglomeration of nanomaterials. Under the blowing of ionic wind, nanomaterials with different particle sizes travel different distances and then settle down. The particles with larger particle sizes settle at a shorter dis...
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