Preparation method of conductive antistatic polyamide nanometer composite fiber

A technology of nanocomposite fibers and polyamide carbon fibers, which is applied in the manufacture of conductive/antistatic filaments, single-component polyamide artificial filaments, and fiber chemical characteristics, and can solve the problem of high resistivity and poor mechanical properties of composite conductive fillers. problems, to achieve the effect of increasing percolation value, compact structure and excellent physical properties

Inactive Publication Date: 2019-11-15
曹建康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Technical problem to be solved by the present invention: Aiming at the problems of poor mechanical properties and high resistivity of composite conductive fillers in existing conductive antistatic polymer fibers, a preparation method of conductive antistatic polyamide nanocomposite fibers is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In parts by weight, weigh 30 parts of lignin fiber with an average diameter of 160nm, 6 parts of nano zinc oxide, 0.3 parts of pectinase, 0.3 parts of amylase, and 120 parts of deionized water. Add pectinase and amylase In deionized water, stir at 120r / min for 10 minutes at room temperature to obtain the enzyme solution. Add the lignin fiber to the enzyme solution. Stir at 200r / min for 1h under the condition of a water bath at 40℃ and keep warm to obtain a mixed system. Zinc oxide was added to the mixed system, stirred at 800r / min for 1h under the condition of a water bath at 40℃, and then placed in an ultrasonic cleaning machine under 3000Hz ultrasonic dispersion for 30min, filtered, and the solid was taken to obtain nano-zinc oxide mosaic wood Put the nano-zinc oxide chimeric lignin fiber in the muffle furnace, heat up to 300°C at a heating rate of 2°C / min, keep it for 2h, and cool to room temperature with the furnace to obtain pre-oxidized nano-zinc oxide chimeric wood...

Embodiment 2

[0041] In parts by weight, weigh 35 parts of lignin fiber with an average diameter of 180nm, 7 parts of nano zinc oxide, 0.3 parts of pectinase, 0.3 parts of amylase, and 140 parts of deionized water. Add pectinase and amylase In deionized water, stir at 140r / min for 150min at room temperature to obtain the enzyme solution. Add the lignin fiber to the enzyme solution. Stir at 220r / min for 1h under the condition of a water bath at 45℃ and keep warm to obtain a mixed system. Zinc oxide was added to the mixed system, stirred at 830r / min for 1h under 45℃ water bath, then placed in an ultrasonic cleaning machine under 3500Hz ultrasonic dispersion for 35min, filtered, and took the solid to obtain nano-zinc oxide mosaic wood Put the nano-zinc oxide chimeric lignin fiber in a muffle furnace, heat it to 300°C at a heating rate of 3°C / min, keep it for 3h, and cool it down to room temperature with the furnace to obtain pre-oxidized nano-zinc oxide chimeric wood For raw fiber, put the nano...

Embodiment 3

[0043] In parts by weight, weigh 40 parts of lignin fiber with an average diameter of 200nm, 8 parts of nano zinc oxide, 0.4 parts of pectinase, 0.4 parts of amylase, and 160 parts of deionized water. Add pectinase and amylase In deionized water, stir at 160r / min for 20 minutes at room temperature to obtain the enzyme solution. Add the lignin fiber to the enzyme solution, stir for 2h at 240r / min in a water bath at 50℃, and keep it warm to obtain a mixed system. Zinc oxide was added to the mixed system, stirred at 860r / min for 2h in a water bath at 50℃, and then placed in an ultrasonic cleaning machine under 4000Hz ultrasonic dispersion for 40min, filtered, and the solid was taken to obtain nano-zinc oxide mosaic wood Put the nano-zinc oxide chimeric lignin fiber in a muffle furnace, heat it to 300°C at a heating rate of 4°C / min, keep it for 4 hours, and cool it down to room temperature with the furnace to obtain pre-oxidized nano-zinc oxide chimeric wood For raw fiber, put the ...

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Abstract

The invention relates to a preparation method of a conductive antistatic polyamide nanometer composite fiber, and belongs to the technical field of nanometer composite materials. According to the preparation method, polyamide is taken as a raw material, the polyamide fiber is a polymer containing amide bonds in a macromolecular chain repeating structure unit, and a steady-state structure is easilyformed through certain segment movement and hydrogen bond interaction, that is to say, crystallization easily occurs; the fiber has a flaky crystal structure, and the structure of the polymer is madeoptimal and most stable through proper arrangement of molecular chains. Due to the function of hydrogen bonds among the amide bonds and electrostatic attraction, a part where the macromolecular chains are orderly arranged along a fiber axis and an amorphous part where the macromolecular chains are randomly arranged are formed in the polyamide, through the structure, the polyamide fiber has good wear resistance and has high wear resistance and breaking strength under the same conditions, the stretching amount is large, and the resilience is excellent; through compounding of the polyamide and acarbon fiber, the properties of the two kinds of materials can complement each other, the mechanical properties of the material are effectively improved, and the material has high fiber orientation degree.

Description

Technical field [0001] The invention relates to a method for preparing a conductive antistatic polyamide nano composite fiber, and belongs to the technical field of nano composite materials. Background technique [0002] With the rapid development of the electronics industry, the electrostatic hazards generated by insulating polymer materials have brought more and more harm to people's production and life. Therefore, the preparation of high-performance polymer conductive composite materials and conductive / antistatic polymer fibers has become the direction of current industrial development. [0003] Polymers are widely used in various fields of production and life due to their low price, light texture, high specific strength, low thermal conductivity and good chemical stability. However, most polymers are good electrical insulators, with high resistivity and easy to generate static electricity, thus limiting their applications. The accumulation of static electricity in the human b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/09D01F1/10
CPCD01F1/09D01F1/10D01F6/90
Inventor 曹建康
Owner 曹建康
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