Graphene oxide/modified phenol formaldehyde resin (UM-PF) electrospinning fiber

Abstract

The invention discloses a graphene oxide / modified phenol formaldehyde resin (UM-PF) electrospinning fiber, which comprises the following raw materials: 1-4% of graphene oxide, 82-90% of a modified phenol formaldehyde resin (UM-PF), 5-10% of a PH value adjuster, and 0.5-1% of a dispersant. The preparation method comprises: completely mixing and stirring the prepared raw materials to obtain a graphene oxide / modified phenol formaldehyde resin (UM-PF) mixing solvent system; and placing the mixing solvent system in a strong electric field, and carrying out jet spinning, wherein the liquid droplet at the needle position can be changed from a spherical shape to a conical shape under the action of the electric field, and can extend from the conical tip to obtain the fiber filament. According to the present invention, the nanometer-diameter graphene oxide / modified phenol formaldehyde resin (UM-PF) filament fiber can be produced, the preparation method has advantages of simple preparation process and high production efficiency, and the prepared fiber has good strength and good toughness; and by introducing the graphene oxide, the fiber has excellent electrical conductivity so as to expand the application range of the fiber.

Description

technical field [0001] The patent of the present invention relates to the field of electrospinning fibers, in particular to a graphene oxide / modified phenolic resin (UM-PF) electrospinning fiber. Background technique [0002] Electrospinning technology has been reported in several patents and laboratory studies. In the electrospinning process, an electric field is formed on the liquid surface first, and when the electric field force acts on the liquid surface, a charged liquid jet will be generated on the liquid surface. The jet of liquid is drawn by the oppositely charged substance with the right electrical potential. As the liquid jet is stretched, it is dried and solidified to form fibers. The stretched liquid jet can be solidified and dried by physical solidification such as cooling of the liquid, evaporation of solvents, etc., or by chemical solidification. The resulting fibers are collected by a suitably placed and reversely charged receiver device, and the fibers c...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many fiber products, such as inorganic fibers and organic fibers, and their application range is very wide, but there are still relatively few studies on fibers with electrical conductivity. Therefore, how to produce fibers and fiber products with electrical conductivity is the current issue. A topic that urgently needs to be solved and researched