Carbon nanofiber/zinc titanate composite for personal protection and production method of carbon nanofiber/zinc titanate composite for personal protection

A technology of nano-carbon fiber and composite materials, which is applied in the elongation of fabrics, non-woven fabrics, textiles and papermaking, etc., can solve the problems of low efficiency in decomposing toxic and harmful substances, poor air permeability and moisture permeability, and heavy weight, and achieve light weight, The effect of high specific surface area and thin thickness

Inactive Publication Date: 2012-07-11
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of low efficiency in decomposing toxic and harmful substances, heavy weight, and poor air and moisture permeability of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] At room temperature of 25°C, add 0.355g of titanium isopropoxide and 2.013g of zinc acetate to a reagent bottle containing 20g of ethanol solvent, then add 5.592g of polyvinylpyrrolidone to the above solution, and place the resulting solution on a magnetic Stirring at a speed of 150rpm on the stirrer for 6h to obtain a uniform spinning solution A; 1.6g of polyacrylonitrile was added to 18.4g of N,N-dimethylformamide, and the resulting solution was placed on a magnetic stirrer to Stir at 80rpm for 12h to obtain spinning solution B with uniform properties; under the conditions of room temperature 25°C and humidity 40%, spinning solution A and spinning solution B were simultaneously input into the electrospinning solution at a flow rate of 1.5mL / h On the two adjacent spinnerets of the electrospinning machine, electrospinning is carried out under the condition of applying a voltage of 18kV on the electrospinning machine at the same time, and the fibers are deposited on the a...

Embodiment 2

[0028] At room temperature at 20°C, add 0.71g titanium isopropoxide and 1.812g zinc acetate to 20g ethanol, then add 2.502g polyvinylpyrrolidone to the above solution, and place the resulting solution on a magnetic stirrer at 120rpm Stir at a high speed for 8 hours to obtain spinning solution A with uniform properties; add 1.2 g of polyacrylonitrile to 18.8 g of N, N-dimethylformamide, and place the resulting solution on a magnetic stirrer to stir at a speed of 100 rpm for 12 hours. Obtain spinning solution B with uniform properties; under the conditions of room temperature 20°C and humidity 30%, the spinning solution A and spinning solution B are simultaneously input into two adjacent electrospinning machines at a flow rate of 1.2mL / h On the spinneret, electrospinning is carried out under the condition of applying a voltage of 22kV on the electrospinning machine at the same time, and the fibers are deposited on the aluminum foil receiver of the reciprocating electrospinning ma...

Embodiment 3

[0031]At room temperature at 24°C, add 1.065g of titanium isopropoxide and 1.581g of zinc acetate to 30g of ethanol, then add 8.1615g of polyvinylpyrrolidone to the above solution, and place the resulting solution on a magnetic stirrer at 180rpm Stir at a high speed for 6h to obtain spinning solution A with uniform properties; add 2.4g of polyacrylonitrile to 17.6g of N,N-dimethylformamide, place the resulting solution on a magnetic stirrer and stir at a speed of 70rpm for 16h, Obtain spinning solution B with uniform properties; under the conditions of room temperature 24°C and humidity 45%, the spinning solution A and spinning solution B are simultaneously input to two adjacent electrospinning machines at a flow rate of 1.5mL / h. On the spinneret, electrospinning is carried out under the condition of applying a voltage of 25kV on the electrospinning machine at the same time, and the fibers are deposited on the copper mesh receiver of the reciprocating electrospinning machine, a...

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PUM

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Abstract

The invention discloses a production method of carbon nanofiber/zinc titanate composite for personal protection, and the composite obtained by the production method. The production method is characterized by including the steps of: adding titanium isopropoxide and zinc acetate into ethanol solvent, and adding polyvinylpyrrolidone to obtain spinning dope A; adding polyacrylonitrile into N, N-dimethyl formamide solvent to obtain spinning dope B; subjecting the spinning dope A and the spinning dope B to electrostatic spinning to obtain composite fibrous membranes; and allowing the drawn composite fibrous membranes to stand in air to be pre-oxidized, and carbonizing the membranes under nitrogen protection. The carbon nanofiber/zinc titanate composite has the advantages of light weight, high rate of biochemical disintegration, and fine mechanical properties.

Description

technical field [0001] The invention relates to a nano carbon fiber / zinc titanate composite material for personal protection and a preparation method thereof, belonging to the technical field of nano functional materials. Background technique [0002] At present, the main core filter medium of military personal protective clothing used by various countries is activated carbon material. The working principle of this kind of protective material is mainly to absorb toxic and harmful substances by the activated carbon material impregnated in the inner layer, so as to reduce the damage of harmful substances to the human body and achieve the effect of protection. However, personal protective equipment using this type of protective material is generally thick and heavy, which brings a heavy physiological load to the wearer during use; the efficiency of decomposing toxic and harmful reagents is extremely low; the air permeability and moisture permeability are poor, and the wearer ...

Claims

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Application Information

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IPC IPC(8): D04H1/4382D04H1/728D06C7/04D06C3/00
Inventor 丁彬王娜斯阳俞建勇
Owner DONGHUA UNIV
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