夹具（小-F）

Preparation method of humidity-sensing micropore layer thickness-controllable ultrafiltration membrane and ultrafiltration equipment

The invention belongs to the technical field of membrane separation, and relates to a preparation method of a humidity-sensing micropore layer thickness-controllable ultrafiltration membrane and ultrafiltration equipment. The preparation method comprises the following steps: casting a membrane casting liquid composition containing a hydrophilic additive, pre-evaporating in a high relative humidity environment, and then pre-evaporating in a low relative humidity environment, and the relative humidity difference between the high relative humidity environment and the low relative humidity environment is not less than 10%. The virus-removing ultrafiltration membrane is prepared by matching high humidity and low humidity and regulating and controlling the thickness of macropores and a compact layer, the ultrafiltration membrane is good in interception capacity and excellent in flux in performance, the technology is prepared in one step, control is easy, cost is saved, and very good reference ...

Polyether sulfone ultrafiltration membrane, preparation method and application thereof and ultrafiltration equipment

The invention belongs to the technical field of membrane separation, and relates to a polyethersulfone ultrafiltration membrane, a preparation method and application thereof, and ultrafiltration equipment. The polyethersulfone ultrafiltration membrane provided by the invention is prepared from the following raw materials: polyethersulfone, an organic solvent, a water-soluble monomer additive, a fat-soluble monomer additive and a pore-foaming agent. The polyethersulfone ultrafiltration membrane provided by the invention has the advantages of high flux, high selectivity, capability of realizing effective separation of proteins, convenience in cleaning, prolonged service life, strong structural adjustability and wide application range.

Preparation method of low-specificity adsorption virus removal ultrafiltration membrane and virus removal ultrafiltration equipment

The invention belongs to the technical field of polymeric membrane materials, and relates to a preparation method of a low-specificity adsorption virus removal ultrafiltration membrane and virus removal ultrafiltration equipment. The preparation method comprises the following steps: performing energy radiation on an energy radiation curing composition, performing coagulating bath phase separation, and then drying, wherein the energy radiation curing composition comprises polyether sulfone, an organic solvent, an active low-protein adsorbent and a hydrophilic additive; the active low protein sorbent includes a compound that is capable of being cured in an amount. The membrane structure of the virus-removing ultrafiltration membrane prepared by using the preparation process disclosed by the invention is an asymmetric structure, so that the flow velocity is relatively high. The method has the advantages of excellent interception and flux and high IgG transmittance.