Preparation method for nickel hydroxide/polyether amine modified carbon fiber

A nickel hydroxide, carbon fiber technology, applied in carbon fiber, fiber processing, textiles and papermaking, etc., can solve the problems of difficult dispersion and low content of nano-materials, achieve easy industrial production, good repeatability, and increase the reaction between fibers and resins sexual effect

Active Publication Date: 2020-08-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of nickel hydroxide/polyether that can solve the problem that existing nanomaterial modified carbon fiber is difficult to disperse, the content is low, and the problems such as time-consuming, high temperature and environmental pollution are common

Method used

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  • Preparation method for nickel hydroxide/polyether amine modified carbon fiber
  • Preparation method for nickel hydroxide/polyether amine modified carbon fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 1) Carbon fiber surface cleaning

[0032] Using acetone as a solvent, the long polyacrylonitrile-based carbon fiber tow was condensed and refluxed at 80°C for 48 hours by Soxhlet extraction method, and then dried at 60°C for 4 hours;

[0033] 2) carbon fiber surface oxidation treatment

[0034] Using nitric acid as a solvent, the surface-cleaned carbon fibers were condensed and refluxed at 80°C for 4 hours by Soxhlet extraction, washed with deionized water until the pH of the washed deionized water was 7, and then dried at 60°C for 2 hours to obtain carbon oxide fibers;

[0035] 3) Configuration of deposition solution

[0036] According to the molar ratio of nickel sulfate hexahydrate: potassium persulfate: deionized water = 1:0.18:28, the deposition solution is evenly prepared;

[0037] 4) Preparation of nickel hydroxide coating on carbon fiber surface

[0038] Using the chemical bath deposition method, immerse the carbon oxide fiber prepared in step 2) into a slurr...

Embodiment 2

[0043] 1) Carbon fiber surface cleaning

[0044] Using petroleum ether as a solvent, the carbon fiber cloth was condensed and refluxed at 70°C for 12 hours by Soxhlet extraction, and then dried at 80°C for 2 hours;

[0045] 2) carbon fiber surface oxidation treatment

[0046] Using sulfuric acid as a solvent, the surface-cleaned carbon fibers were condensed and refluxed at 60°C for 6 hours by Soxhlet extraction, washed with deionized water until the pH of the washed deionized water was 7, and then dried at 70°C for 3 hours to obtain carbon oxide fibers;

[0047] 3) Configuration of deposition solution

[0048] According to the molar ratio of nickel sulfate hexahydrate: potassium persulfate: deionized water = 1:0.15:25, the deposition solution is evenly prepared;

[0049] 4) Preparation of nickel hydroxide coating on carbon fiber surface

[0050] Using the chemical bath deposition method, immerse the carbon oxide fiber prepared in step 2) into a slurry tank containing 100ml ...

Embodiment 3

[0054] 1) Carbon fiber surface cleaning

[0055] Using acetone as a solvent, the long polyacrylonitrile-based carbon fiber tow was condensed and refluxed at 80°C for 24 hours by Soxhlet extraction method, and then dried at 70°C for 3 hours;

[0056] 2) carbon fiber surface oxidation treatment

[0057]Using a mixture of nitric acid and sulfuric acid as a solvent, the surface-cleaned carbon fiber was condensed and refluxed at 80°C for 2 hours by Soxhlet extraction, washed with deionized water until the pH of the washed deionized water was 7, and then dried at 50°C for 4 hours Obtain oxidized carbon fiber;

[0058] 3) Configuration of deposition solution

[0059] Prepare a uniform deposition solution according to the molar ratio of nickel sulfate hexahydrate: potassium persulfate: deionized water = 1:0.2:30;

[0060] 4) Preparation of nickel hydroxide coating on carbon fiber surface

[0061] Using the chemical bath deposition method, immerse the carbon oxide fiber prepared in...

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Abstract

The invention discloses a preparation method for nickel hydroxide/polyether amine modified carbon fiber. The preparation method comprises the following steps: cleaning and oxidizing the surface of thecarbon fiber; preparing nickel sulfate hexahydrate, potassium persulfate and deionized water deposition liquor; adopting a chemical-bath deposition method and a soaking method for cleaning and dryingthe carbon fiber by filling deposition liquor and a polyether amine organic solvent solution, thereby accomplishing modification, on the fiber, of the nickel hydroxide/polyether amine. The method sufficiently utilizes excellent electrochemical oxidization-reduction reaction characteristic of nickel hydroxide and an amino group of polyether amine to improve electrochemical performance of the fiber; and meanwhile, a three-dimensional honeycomb structure of the nickel hydroxide and reaction performance of the polyether amine are utilized to improve interface bonding strength of the composite material, so that a green, environment-friendly, simple and efficient method is provided for modification and application of the carbon fiber.

Description

technical field [0001] The invention belongs to the field of surface and interface modification of materials, and in particular relates to a preparation method of nickel hydroxide / polyetheramine modified carbon fiber. Background technique [0002] With the improvement of carbon fiber composite material production technology and the continuous expansion of application fields, the demand for carbon fiber composite materials is increasing year by year. At the same time, the comprehensive performance requirements for carbon fiber composite materials have also been increasing. Carbon fiber has excellent mechanical properties such as high specific modulus and high specific strength. However, its surface lacks active groups and has low surface energy, which makes the interface bond strength between it and the resin matrix very poor, which greatly limits the high performance of carbon fiber. Therefore, in order to make composite materials with excellent mechanical properties, it is ...

Claims

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Application Information

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IPC IPC(8): D06M11/49D06M15/53D06M11/64D06M11/55C08K9/02C08K9/04C08K7/06C08L63/00D06M101/40
CPCD06M15/53D06M11/49D06M11/64D06M11/55C08K9/02C08K9/04C08K7/06D06M2101/40C08L63/00Y02E60/10
Inventor 武清万勤勤王芬朱建锋
Owner SHAANXI UNIV OF SCI & TECH
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