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Method for Vectran carbon fiber surface modification of plasma coated with silicon dioxide colloidal sols by plasma treatment

A nano-silica, plasma technology, applied in the fiber type, fiber treatment, physical treatment and other directions, can solve the problem of not mentioning coating Vectran fiber, etc., to achieve fiber bulk performance optimization, composite performance improvement, wetting effect improvement Effect

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

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Problems solved by technology

At present, the existing plasma treatment Vectran fiber surface modification technology patent does not involve the use of nano-materials to prepare sol technology, let alone the use of nano-silica sol technology to coat Vectran fibers, especially after coating with nano-silica sol A method for surface modification of Vectran fibers by plasma technology

Method used

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  • Method for Vectran carbon fiber surface modification of plasma coated with silicon dioxide colloidal sols by plasma treatment
  • Method for Vectran carbon fiber surface modification of plasma coated with silicon dioxide colloidal sols by plasma treatment
  • Method for Vectran carbon fiber surface modification of plasma coated with silicon dioxide colloidal sols by plasma treatment

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example 1

[0034] Nano-Silica Sol Coated VECTRAN Fibers Treated by Helium Plasma

[0035] see Figure 6 As shown, the VECTRAN fiber 1 to be treated is immersed in nano-silica sol (0.05%) along the outer circle of the flower basket of the sol padding device 2, and the padding process is carried out, and then the VECTRAN fiber is introduced into the drying device 3, at a specific temperature Dry and collect the solvent. Then the VECTRAN fiber is introduced into the plasma atmosphere area of ​​the plasma nozzle 4 to carry out plasma surface modification (the upper surface of the fiber bundle is 5MM away from the nozzle, the lower surface of the fiber bundle is less than 20MM away from the nozzle, and it is processed under 40 watts of power and 2 seconds) , there is an automatic winder 5 at the rear, which can wind the processed VECTRAN fiber 1 online, and adjust the line speed of the VECTRAN fiber by adjusting the speed of the winding shaft. According to the needs of different processing t...

example 2

[0037] Oxygen plasma treatment of nano-silica sol coated VECTRAN fibers

[0038] see Figure 6 As shown, the VECTRAN fiber 1 to be treated is immersed in nano-silica sol (0.05%) along the outer circle of the flower basket of the sol padding device 2, and the padding process is carried out, and then the VECTRAN fiber is introduced into the drying device 3, at a specific temperature Dry and collect the solvent. Then the VECTRAN fiber is introduced into the plasma atmosphere area of ​​the plasma nozzle 4 to carry out plasma surface modification (the upper surface of the fiber bundle is 5MM away from the nozzle, the lower surface of the fiber bundle is less than 20MM away from the nozzle, and it is processed under 40 watts of power and 2 seconds) , there is an automatic winder 5 at the rear, which can wind the processed VECTRAN fiber 1 online, and adjust the speed of the carbon fiber by adjusting the speed of the winding shaft. According to the needs of different processing techn...

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Abstract

The invention relates to a method for modifying the surface of Vectran fiber coated with nano silicon dioxide sol through plasma treatment, which comprises the following steps: firstly, nano silicon dioxide is 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 and silicon dioxide nano particles by the ultrasonic vibrating technology; secondly, the sol solution is coated on the surface of the fiber and dried; and thirdly, the dried Vectran fiber is placed on a plasma transport unit and a plasma is sprayed on substances to generate modification, wherein the treating power is between 10 and 15,000 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 Vectran fiber surface modification, in particular to a method for plasma treatment of Vectran fiber surface modification coated with nano-silica sol. Background technique [0002] Vectran is a high-performance liquid crystal polymer fiber, which is made of Polyeater polyester group and polyarylate polyarylene (Polyester-Polyarylate). It uses p-hydroxybenzoic acid and 2-hydroxy-6-formic acid as raw materials. The regularity of the chain is destroyed, which reduces the processing melting temperature and improves the use value. Its physical and chemical properties are very similar to common liquid crystal fibers such as Kevlar. They are both high-modulus and high-strength man-made fibers. The tensile modulus of 1500d / 300f high-strength Vectran is 64.9GPa~72.5GPa, and the tensile strength is 23~ 26g / d, the elongation at break is only 3.3%~3.7%, the single fiber is 5d, and the fiber diameter is 23μm. In ...

Claims

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Application Information

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IPC IPC(8): D06M10/06D06M11/79D06M101/32
Inventor 张迎晨朱海燕吴红艳邱夷平
Owner DONGHUA UNIV
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