Novel electromagnetic shielding nanocarbon conductive fibrous material and preparation method thereof

Abstract

The invention discloses a novel electromagnetic shielding nanocarbon conductive fibrous material and a preparation method thereof, and belongs to the field of a nano-material technology. The material comprises the following components: graphite, a nanometer carbon fiber, a conductive polymer, a polymer adhesive, a dispersant, alkali metal fluoride, a metal catalyst, a conductive metal and a surface conditioning agent. The preparation method comprises the following steps: the graphite is subjected to pretreatment with alkali metal fluoride; the nanometer carbon fiber is oxidized by an acid mixture, the surface conditioning agent and the conductive metal are added separately, and a heating treatment is carried out; after the pretreated graphite and the pretreated nanometer carbon fiber are dissolved, the dispersant, the conductive polymer and the polymer adhesive are added for blending, and ultrasonic dispersion, ozonization treatment and grinding are carried out to form a homogeneous solution; a chemical blend is blended with the obtained solution, and the nanocarbon conductive fibrous material is prepared by a electrostatic spinning method. The novel electromagnetic shielding nanocarbon conductive fibrous material prepared by the invention has good electromagnetic shielding performance, and does not have toxicity and any carcinogenic substances; the novel electromagnetic shielding nanocarbon conductive fibrous material can be used for manufacturing radiation-proof clothes and the like.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and specifically relates to a novel electromagnetic shielding nanocarbon conductive fiber material and a preparation method thereof. Background technique [0002] While enjoying the convenience brought by digital information technology, people are also suffering from the "destruction" of an "invisible killer"-electromagnetic wave pollution. With the influx of household appliances, communication equipment, electronic products and electrical equipment, etc., electromagnetic waves Radiation coverage has penetrated into every corner of human life, and man-made electromagnetic energy is increasing at a rate of 10%-15% per year. Electromagnetic pollution has become the fourth largest pollution source after waste water, waste gas, and waste residue. [0003] Scientific research and experiments have proved that these radiations are harmful to the human body. If a person is exposed to strong e...

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Problems solved by technology

However, this radiation-proof clothing cannot prevent all radiation from entering the clothing. When radiation enters the radiation-proof clothing through gaps such as necklines, cuffs, and hems, this reflective shielding layer will cause the radiation to reflect and overlap for many times. , so that the radiation intensity in the radiation protection clothing may be increased, so that wearing the radiation protection clothing may cause greater radiation damage to the human body, so the radiation protection effect of the existing radiation protection clothing is poor, and it cannot meet the radiation protection requirements at all.

[0004] New materials such as graphite and nano-carbon fiber have been tested to prove that they have excellent conductivity and radiation resistance, are not subject to external interference, and have achieved the effect of radiation protection and anti-static. However, in the existing technology, graphite is directly dispersed into fabric fibers. Among them, the dispersion of graphite is not good, and it is easy to aggregate, so the performance is not good. In addition, the pure nano-carbon fiber spinning has poor forming effect, which needs to be improved.