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Aminated zinc oxide nano wire-carbon fiber hybrid reinforcement and preparation method thereof

A technology of zinc oxide nanowires and polyacrylonitrile-based carbon fibers, which is applied in the direction of gaseous chemical plating, superimposed layer plating, coating, etc., can solve the problem of low interface strength retention, failure to meet the requirements of wet heat performance, and dissipation and other problems, to achieve the effect of high particle size distribution uniformity and high-quality zinc oxide nanowire array

Active Publication Date: 2015-12-09
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The strengthening effect of zinc oxide nanowires on the interface of carbon fiber composite materials is realized through pure physical action. Under hot and humid conditions, the expansion coefficients of the matrix resin and zinc oxide nanowires are very different, and residual stress will be generated at the interface. The consumption of residual stress It will dissipate through the weakest interface physical junction, so the interface strength retention rate between the zinc oxide nanowire-carbon fiber hybrid reinforcement and the matrix resin after wet heat treatment is low, which cannot meet the requirements of the composite material interface for wet heat performance

Method used

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  • Aminated zinc oxide nano wire-carbon fiber hybrid reinforcement and preparation method thereof
  • Aminated zinc oxide nano wire-carbon fiber hybrid reinforcement and preparation method thereof
  • Aminated zinc oxide nano wire-carbon fiber hybrid reinforcement and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Take a section of 10 cm long unsized T700 grade polyacrylonitrile-based carbon fiber (produced by the Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences) obtained by the dry spray wet spinning process, with dimethyl zinc as the zinc source and deionized water as the oxygen source , control the temperature of the zinc source to -25°C, the temperature of the oxygen source to 3°C, and at the operating temperature of 230°C, control the deposition time to be 10 minutes, and use atomic layer deposition equipment to prepare zinc oxide nano-layers on the surface of the carbon fiber. With the carbon fiber as the anode, the gold wire with a diameter of 60 microns as the cathode, and the silver-silver chloride electrode as the reference electrode, the three are placed in a reaction solution containing zinc nitrate with a concentration of 1.5 moles per liter , and hexamethylenetetramine with a concentration of 1.5 moles per liter, the temperature of the reaction solutio...

Embodiment 2

[0026]Take a 10 cm long T700S carbon fiber from Toray Corporation of Japan, remove the carbon fiber surface sizing agent according to the method described in Appendix A of GJB1982-94, and then vacuum dry the carbon fiber at 60°C for 48 hours. Diethyl zinc is used as the zinc source, hydrogen peroxide with a mass fraction of 20% is used as the oxygen source, the temperature of the zinc source is controlled at -23°C, the temperature of the oxygen source is 5°C, and the operating temperature is 240°C, and the deposition time is controlled to be 20 Minutes, using atomic layer deposition equipment to prepare a zinc oxide nano-layer on the surface of the carbon fiber. With the carbon fiber as the anode, the gold wire with a diameter of 50 microns as the cathode, and the silver-silver chloride electrode as the reference electrode, the three are placed in a reaction solution containing a concentration of 2 moles per liter of zinc acetate , and ammonia water with a concentration of 2 m...

Embodiment 3

[0029] Take a section of 10 cm long unsized T700 grade polyacrylonitrile-based carbon fiber (produced by the Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences) obtained by the dry spray wet spinning process, with dimethyl zinc as the zinc source and deionized water as the oxygen source , control the temperature of the zinc source to -24°C, the temperature of the oxygen source to 4°C, and at an operating temperature of 232°C, control the deposition time to 12 minutes, and prepare a zinc oxide nano-layer on the surface of the carbon fiber by atomic layer deposition equipment. With the carbon fiber as the anode, the gold wire with a diameter of 50 microns as the cathode, and the silver-silver chloride electrode as the reference electrode, the three are placed in a reaction solution containing zinc nitrate with a concentration of 1.6 moles per liter , and hexamethylenetetramine with a concentration of 1.8 moles per liter, the temperature of the reaction solution was r...

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Abstract

The invention discloses an aminated zinc oxide nano wire-carbon fiber hybrid reinforcement. The aminated zinc oxide nano wire-carbon fiber hybrid reinforcement comprises, by mass, 94.3-96.8% of unsized or desized polyacrylonitrile-based carbon fiber, 3-5% of nano wire-type zinc oxide, 0.1-0.5% of nanometer particle-type zinc oxide and 0.1-0.2% of a silicon-containing compound. The aminated zinc oxide nano wire-carbon fiber hybrid reinforcement has a high interfacial strength conservation rate in a wet and hot environment.

Description

technical field [0001] The invention belongs to a method for strengthening the interface of a carbon fiber composite material, in particular to an aminated zinc oxide nanowire-carbon fiber hybrid reinforcement and a preparation method thereof. technical background [0002] Carbon fiber composites are widely used in the field of structural materials because of their excellent mechanical properties. When the carbon fiber composite material is subjected to an external force, the interface layer between the carbon fiber and the matrix material acts as a bridge to transmit the external force to the main load-bearing component carbon fiber. Therefore, the bonding strength of the interface layer directly affects the stress transfer efficiency of the composite. [0003] In recent years, various methods for growing nanowires on the surface of carbon fibers have attracted attention. The interaction area between the carbon fiber and the matrix material is increased by the nanowire, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/06C08K9/10C08K7/06C08K3/22C23C16/40C23C28/04
Inventor 吕春祥张寿春原浩杰
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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