Preparation method of flexible carbon fiber with superamphiphobic property

Abstract

The invention relates to a preparation method of flexible carbon fiber with superamphiphobic property, and belongs to the technical field of production of superamphiphobic materials. The preparation method comprises the following steps of dissolving polyacrylonitrile and manganeseacetylacetonate into N,N-dimethylformamide, forming a uniform electrostatic spinning solution, and adopting an electrostatic spinning technique, so as to obtain nanometer spinning fibers; pre-oxidizing the nanometer spinning fibers, placing under the nitrogen atmosphere, and carbonizing at high temperature, so as to obtain manganese-doped nanometer carbon fiber; soaking the manganese-doped nanometer carbon fiber into an ethyl alcohol solution of POTS (1H,1H,2H,2H-perfluorooctyltriethoxysilanes), so as to obtain the flexible carbon material with superamphiphobic property. The preparation method has the advantages that the technology is simple, the shape of the spinning fiber can be adjusted, and the green and environment-friendly effects are realized; the average size of the spinning carbon fiber is 300 to 450nm. The prepared carbon fiber with the superamphiphobic property has the advantages that the contact angle is about 155 degrees at different pH (potential of hydrogen) values, the rolling angle is about 4 degrees, and the contact angles for different types of oil are about 152 DEG C.

Description

technical field [0001] The invention belongs to the technical field of super-amphiphobic material production. Background technique [0002] Electrospinning, as a low-cost and simple method, is expected to be widely used in the preparation of large-scale nanomaterials. Carbon nanofibers prepared by electrospinning usually have good electrical conductivity and high aspect ratio, and can form self-supporting nonwoven-like structures. Carbon nanofiber membranes (CNFs) have excellent tensile strength, thermal stability, electrical conductivity and catalytic activity. However, the poor bending properties and inherent brittleness severely limit its application in the field of composite materials. [0003] At present, with the rapid development of urban construction, people have higher and higher requirements for the living environment. While urban architecture brings people artistic enjoyment, there are many problems in its daily cleaning. There is no doubt that self-cleaning te...

AI Technical Summary

Problems solved by technology

However, this super-amphiphobic self-cleaning surface based on the "lotus leaf effect" has not yet been industrialized at home and abroad.

One of the reasons affecting the practical use of super-amphiphobic self-cleaning surfaces is that most of the self-cleaning surfaces currently developed only have superhydrophobic properties (not superoleophobic); these superhydrophobic surfaces do not have repulsion to oil, so for Oil stains and other stains are often helpless

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