1results about How to "Good formaldehyde removal effect" patented technology

This invention relates to the field of filter material technology and discloses a graphene filter material and its preparation method. The preparation method of the graphene filter material includes the following steps: (1) mixing graphene and a polymer carrier to obtain a mixture; (2) melting and extruding the mixture to obtain a melt, spinning the melt to obtain matrix fibers, and simultaneously intercalating graphene fibers into the matrix fibers to obtain the graphene filter material; wherein the intercalation speed is 2-50 m / s and the intercalation distance is 5-20 cm. This invention achieves uniform dispersion and embedding of graphene fibers in the matrix fibers by precisely controlling the intercalation speed and distance, avoiding local aggregation of graphene fibers, thereby increasing the graphene content in the filter product. The prepared graphene filter material has excellent filtration performance as well as antibacterial, antiviral and formaldehyde removal properties.