Para-position nanometer aramid fiber and carbon nano-tube composite paper preparation method

Abstract

The invention discloses a para-position nanometer aramid fiber and carbon nano-tube composite paper preparation method, which comprises: obtaining a para-aramid fiber (short for ANF) aqueous dispersion liquid, obtaining a carbon nano-tube (short for CNT) aqueous dispersion liquid, and mixing the two aqueous dispersion liquids to prepare the para-aramid fiber / carbon nano-tube (ANF / CNT) composite paper. According to the method of the invention, carbon nano-tubes are adopted, the advantages of high conductivity and high radiation of the carbon nano-tubes are utilized, and a specific dispersing agent capable of opening the agglomeration among the carbon nano-tubes is added, so that the carbon nano-tubes are uniformly dispersed, and then the carbon nano-tubes are mixed with a para-aramid fiberaqueous dispersion liquid to prepare the nanometer para-aramid / carbon nano-tube composite paper; and by adding the specific dispersing agent, the carbon nano-tubes can be uniformly dispersed, so thatthe conductivity of the nanometer para-aramid / carbon nano-tube composite paper can be greatly improved while the infrared emissivity is more than 90%.

Description

technical field

[0001] The invention relates to the technical field of composite paper manufacturing, in particular to a method for preparing composite paper made of para-nano aramid fibers and carbon nanotubes. Background technique

[0002] Para-nano-aramid fiber (ANF) is a high-performance special material with good heat resistance, excellent mechanical properties, chemical corrosion resistance, light weight, and dense materials. It is widely used in aerospace, military equipment, electronic appliances, etc. The industry has broad application prospects.

[0003] As a one-dimensional nanomaterial, carbon nanotubes are light in weight, perfectly connected in a hexagonal structure, and have many unusual mechanical, electrical, and chemical properties. In recent years, with the in-depth research of carbon nanotubes and nanomaterials, their broad application prospects are constantly showing. For example, it can be used as a material emitting far infrared rays.

[0004] Far i...