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Method for carbon fiber surface modification of plasma coated with nano colloidal sols by plasma treatment

A plasma and nanosol technology, applied in the direction of carbon fiber, fiber treatment, physical treatment, etc., can solve the problem of not mentioning coating carbon fiber, etc., and achieve the effect of convenient replacement of treatment process, improved composite performance, and increased infiltration amount

Inactive Publication Date: 2009-04-22
DONGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing patents for plasma treatment of carbon fiber surface modification technology do not involve the use of nano-materials to prepare sol technology, nor mention the use of nano-sol technology to coat carbon fibers, especially carbon fibers coated with nano-sol and then plasma technology. Methods of Surface Modification

Method used

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  • Method for carbon fiber surface modification of plasma coated with nano colloidal sols by plasma treatment
  • Method for carbon fiber surface modification of plasma coated with nano colloidal sols by plasma treatment
  • Method for carbon fiber surface modification of plasma coated with nano colloidal sols by plasma treatment

Examples

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example 1

[0037] Helium plasma treatment of nanosol-coated carbon fibers

[0038] see Figure 5 As shown, the carbon fiber 1 to be treated is immersed in nano-sol (0.05%) along the outer circle of the basket of the sol padding device 2, and the padding process is performed, and then the carbon fiber is introduced into the drying device 3, dried at a specific temperature and collected. solvent. Then carbon fiber is introduced into the plasma atmosphere area of ​​plasma nozzle 4 and carries out plasma surface modification (fiber bundle upper surface is apart from nozzle distance 5MM, fiber bundle lower surface is apart from nozzle figure 1 , the infrared spectrum as figure 2 .

example 2

[0040] Oxygen plasma treatment of nanosol-coated carbon fibers

[0041] see Figure 5 As shown, the carbon fiber 1 to be treated is immersed in nano-sol (0.05%) along the outer circle of the basket of the sol padding device 2, and the padding process is performed, and then the carbon fiber is introduced into the drying device 3, dried at a specific temperature and collected. solvent. Then carbon fiber is introduced into the plasma atmosphere area of ​​plasma nozzle 4 and carries out plasma surface modification (fiber bundle upper surface is apart from nozzle distance 5MM, fiber bundle lower surface is apart from nozzle image 3 , the infrared spectrum as Figure 4 .

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Abstract

The invention relates to a method for modifying the surface of carbon fiber coated with nano sol through plasma treatment, which comprises the following steps: firstly, nano particles are prepared into an organic solvent, a sol solution of water or a sol solution prepared by hybridization reaction of a precursor solution of organic-inorganic nano particles by the ultrasonic vibrating technology; secondly, the sol solution is coated on the surface of the carbon fiber, treated by means of spray coating and padding, and dried; and thirdly, the dried carbon fiber is placed on a special transport unit for plasma processing equipment and a plasma is sprayed on the surface of the carbon fiber to make the carbon fiber move in the plasma atmosphere, so as to generate surface modification, wherein the treating power is between 10 and , watts, and the treatment time is between 0.5 and 300 seconds. The method can effectively improve the performance of the fiber, improves the molded manufacturability and the overall properties of composite materials of the fiber, has simple technology, quick processing speed, good treatment effect and low cost, is convenient to operate and difficult to cause environmental pollution, can reduce energy consumption, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of preparation of carbon fibers and composite materials thereof, in particular to a method for plasma treatment of surface modification of carbon fibers coated with nano-sol. Background technique [0002] Carbon fiber has high axial strength and modulus, no creep, good fatigue resistance, specific heat and electrical conductivity between non-metal and metal, small thermal expansion coefficient, good chemical resistance, low fiber density, X-ray Good permeability. The disadvantage is that the impact resistance is poor and it is easy to be damaged; oxidation occurs under the action of hot strong acid, and when it is combined with metal, metal carbonization, carburization and electrochemical corrosion will occur. For this reason, surface treatment, including nickel plating, is required before compounding. Carbon fibers include filaments, staple fibers, chopped fibers, etc., which can be processed into fabrics, felts, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/06D06M11/79D06M11/00D06M101/40
Inventor 张迎晨吴红艳邱夷平
Owner DONGHUA UNIV
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