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Activator, preparation method and preparation method of carbon fiber composite material

An activation solution and carbon fiber technology, applied in the field of chemical plating, can solve the problems of carbon fiber agglomeration, cumbersome activation process steps, low stability, etc., and achieve the effects of high plating rate, good activation effect and high stability.

Inactive Publication Date: 2019-05-10
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an activation solution, a preparation method and a preparation method of a carbon fiber composite material, which solves the problem that the existing carbon fiber activator makes the activation process steps cumbersome, has low stability, and causes the carbon fiber to agglomerate again

Method used

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  • Activator, preparation method and preparation method of carbon fiber composite material
  • Activator, preparation method and preparation method of carbon fiber composite material
  • Activator, preparation method and preparation method of carbon fiber composite material

Examples

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Effect test

Embodiment 1

[0048] This embodiment is the preparation of carbon fiber composite material, comprising the following steps:

[0049] (1) Pretreatment, first place the carbon fiber in a box-type resistance furnace for high-temperature burning, and remove the glue on the surface of the carbon fiber; place the carbon fiber after high-temperature degumming in an ultrasonic cleaner for dispersion, so as to disperse the carbon fiber into a single Silk state; the dispersed carbon fiber is placed in nitric acid solution for roughening, so that the surface of the carbon fiber is etched into a groove shape, and the surface of the carbon fiber is changed from hydrophobic to hydrophilic; finally, the roughened carbon fiber is placed in hydrogen Neutralize in a sodium oxide solution to remove the residual acidic substances on the surface of the carbon fiber, and then clean the carbon fiber to neutral to complete the pretreatment.

[0050] (2) Activation, the pretreated carbon fiber is immersed in the ac...

Embodiment 2

[0055] This embodiment is the preparation of carbon fiber composite material, comprising the following steps:

[0056] (1) Pretreatment, first place the carbon fiber in a box-type resistance furnace for high-temperature burning, and remove the glue on the surface of the carbon fiber; place the carbon fiber after high-temperature degumming in an ultrasonic cleaner for dispersion, so as to disperse the carbon fiber into a single Silk state; the dispersed carbon fiber is placed in nitric acid solution for roughening, so that the surface of the carbon fiber is etched into a groove shape, and the surface of the carbon fiber is changed from hydrophobic to hydrophilic; finally, the roughened carbon fiber is placed in hydrogen Neutralize in a sodium oxide solution to remove the residual acidic substances on the surface of the carbon fiber, and then clean the carbon fiber to neutral to complete the pretreatment.

[0057] (2) Activation, immerse the pretreated carbon fiber in the activa...

Embodiment 3

[0062] This embodiment is the preparation of carbon fiber composite material, comprising the following steps:

[0063] (1) Pretreatment, first place the carbon fiber in a box-type resistance furnace for high-temperature burning, and remove the glue on the surface of the carbon fiber; place the carbon fiber after high-temperature degumming in an ultrasonic cleaner for dispersion, so as to disperse the carbon fiber into a single Silk state; the dispersed carbon fiber is placed in nitric acid solution for roughening, so that the surface of the carbon fiber is etched into a groove shape, and the surface of the carbon fiber is changed from hydrophobic to hydrophilic; finally, the roughened carbon fiber is placed in hydrogen Neutralize in a sodium oxide solution to remove the residual acidic substances on the surface of the carbon fiber, and then clean the carbon fiber to neutral to complete the pretreatment.

[0064] (1) Activation, immerse the pretreated carbon fiber in the activa...

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Abstract

The invention relates to the technical field of chemical plating, in particular to an activator, a preparation method and a preparation method of carbon fiber composite material. The activator is prepared from the following components of a dispersing agent, sodium citrate, nickel salt and a boron-containing compound, wherein the boron-containing compound is potassium borohydride or sodium borohydride, and the PH value of the activator is 9-11. The dispersing agent in the activator can prevent aggregation of carbon fibers in water solution and re-aggregation after the carbon fibers are activated and washed, the activator has a procedure integrated function, the carbon fibers are only needed to be placed in the activator, the procedures of dispersing, sensitizing and activating of the carbonfibers can be completed, so that traditional complicated steps of dispersion, sensitization and activation are simplified. The activator exists in an alkaline condition and is relatively high in stability, so that the activating effect is good, the chemical plating rate is high, and the practicability is good. In addition, the activator uses cheap and easily available nickel instead of noble metal palladium or silver, so that the activation cost is saved.

Description

technical field [0001] The invention relates to the technical field of electroless plating, in particular to an activation solution, a preparation method and a carbon fiber composite material preparation method. Background technique [0002] Carbon fiber reinforced composite materials are widely used in aerospace and civil industries because of their low density, high strength, high elastic modulus and superior corrosion resistance; Shielding effect, with excellent electrical conductivity, thermal conductivity, fatigue resistance and chemical stability. However, due to the inert surface of carbon fiber, small specific surface area, low surface energy, and lack of chemically active functional groups, the wettability and interface adhesion between the carbon fiber and the matrix are poor, which affects the performance of the entire composite material. [0003] At present, the most widely used carbon fiber activation method uses palladium chloride or silver nitrate as the acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/18C23C18/40C23C18/44
Inventor 陈海燕黄丽杨邹小风
Owner GUANGDONG UNIV OF TECH
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