Novel antistatic acrylic fiber and preparation method of antistatic acrylic fiber

Abstract

The invention relates to a antistatic acrylic fiber which comprises a carbon nano tube and carbon black, wherein the weight percent of the carbon nano tube is 1%-15%, the weight percent of the carbon black is 1%-3%, and the weight percent range of polyacrylonitrile is 82%-98%. The invention also relates to a preparation method of the antistatic acrylic fiber, a wet spinning method is used for spinning the acrylic fiber, and a coagulating bath comprises a carbon nano tube, wherein the carbon nano tube accounts for 20wt%-25wt% of the coagulating bath. The invention also provides another preparation method of the antistatic acrylic fiber, a wet spinning method is used for spinning the acrylic fiber, and coagulating baths sequentially comprise a first coagulating bath and a second coagulating bath containing antistatic agent, wherein the first coagulating bath is a water solution containing 10wt% of polyacrylonitrile, and the temperature of the first coagulating bath is -5 DEG C-10 DEG C; the second coagulating bath containing antistatic agent is a water solution containing antistatic agent, and the temperature of the second coagulating bath is -5 DEG C-10 DEG C; and the antistatic agent accounts for 45wt%-55wt% of the second coagulating bath and is the carbon nano tube.

Description

technical field [0001] The invention relates to an antistatic acrylic fiber and a preparation method of the antistatic acrylic fiber. The invention utilizes the existing wet spinning technology to quickly modify the acrylic fiber nascent fiber still in a gel state to obtain the antistatic fiber. Background technique [0002] The preparation of antistatic acrylic fiber is generally realized by carrying out antistatic modification to acrylic fiber, and the following methods are usually adopted: (1) fiber surface treatment method: the surface antistatic treatment of fiber generally adopts conductive metal salt or has Surfactants with antistatic properties, used for surface treatment of fibers and fabrics by spraying, dipping, coating and other methods. (2) Chemical modification method: use chemical methods to graft antistatic groups on the surface. (3) Blending modification method: adding an antistatic agent (carbon black or carbon nanotubes, etc.) to the spinning stock soluti...

AI Technical Summary

Problems solved by technology

With its excellent electrical conductivity and mechanical properties, carbon nanotubes, on the premise of ensuring the good antistatic properties of acrylic fibers, greatly improved the strength of the fibers and ensured the quality of modified acrylic fibers; The disadvantages of the method are that the spinnability of the fiber is reduced, and the quality of the mechanical properties of the fiber is reduced.

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