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Carbon fiber emulsion sizing agent and preparation method and application thereof

A carbon fiber and slurry technology, which is applied in the fields of carbon fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of cumbersome preparation of component B, and achieve the effects of easy implementation, increased stability and improved performance

Inactive Publication Date: 2010-10-13
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of component B is more cumbersome

Method used

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  • Carbon fiber emulsion sizing agent and preparation method and application thereof
  • Carbon fiber emulsion sizing agent and preparation method and application thereof
  • Carbon fiber emulsion sizing agent and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037]Preheat the emulsifier NP-10 phosphate ammonium salt and OP-10 in a ratio of 75:25, and the emulsifier and penetrant 2-octyl alcohol polyoxyethylene ether (JFC-2) in a ratio of 80:20. Put it in a container to get a mixing aid. Mix epoxy resin E-44 and epoxidized polybutadiene resin uniformly in a mass ratio of 80:20 to obtain a sizing agent main slurry, which is dissolved in acetone, and the mass ratio of acetone to the main slurry is 40: 60, then add the above mixing aids, the addition of mixing aids is 15% of the main slurry. Heat the mixture to 50°C and mix well, then stir at a constant speed of 10000r / min at a high speed, add deionized water drop by drop, the ratio of deionized water to main slurry is 80:20, continue stirring for 20min after adding water , to obtain a sizing agent emulsion. The emulsion was diluted to a solid content of 0.5%, and the sizing agent of this concentration was attached to the polyacrylonitrile carbon fiber by dipping method. The dipping...

Embodiment 2

[0058] Preheat emulsifier NP-10 ammonium sulfate and NP-10 in a ratio of 70:30, emulsifier and penetrant OP-7 in a ratio of 85:15, mix them evenly at 60°C, and place them in a container to obtain a mixing aid. Mix epoxy resin E-51 and epoxidized polybutadiene resin uniformly in a mass ratio of 20:80 to obtain a sizing agent main slurry, which is dissolved in acetone, and the mass ratio of acetone to the main slurry is 50: 50, then add the above mixing aids, the addition of mixing aids is 12% of the main slurry. Heat the mixture to 60°C and mix well, then stir at a high speed at a constant speed of 11000r / min, add deionized water drop by drop, the ratio of deionized water to main slurry is 70:30, continue stirring for 20min after adding water , to obtain a sizing agent emulsion. The emulsion was diluted to a solid content of 1.0%, and the sizing agent of this concentration was attached to the polyacrylonitrile carbon fiber by dipping method. The dipping time was 25s, and then ...

Embodiment 3

[0060] Preheat the emulsifier NP-10 ammonium sulfate and Nongru 1601 in a ratio of 65:35, and the emulsifier and penetrant 2-octyl alcohol polyoxyethylene ether (JFC-2) in a ratio of 90:10. In the container, get the mixing aid. Mix epoxy resin E-55 and epoxidized polybutadiene resin evenly in a mass ratio of 25:75 to obtain the main slurry of the sizing agent, which is dissolved in acetone, and the mass ratio of acetone to the main slurry is 50: 50, then add the above mixing aids, the amount of mixing aids added is 10% of the main slurry. Heat the mixture to 60°C and mix well, then stir at a high speed at a constant speed of 9000r / min, add deionized water drop by drop, the ratio of deionized water to main slurry is 60:40, continue stirring for 30min after adding water , to obtain a sizing agent emulsion. The emulsion was diluted to a solid content of 2.0%, and the sizing agent of this concentration was attached to the polyacrylonitrile carbon fiber by dipping method. The dip...

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Abstract

The invention discloses a carbon fiber emulsion sizing agent. The sizing agent comprises a main sizing agent, an auxiliary agent, an organic solvent and de-ionized water, wherein the auxiliary agent accounts for 5 to 15 percent of the mass of the main sizing agent; the mass ratio of the organic solvent to the main sizing agent is 20-50 to 50-80; and the mass ratio of the de-ionized water to the main sizing agent is 50-90 to 10-50. The invention also discloses a preparation method and application of the sizing agent. The sizing agent has low cost and environment friendliness and can be applied to different types of resin matrixes by varying the ratio of the components in the sizing agent. The preparation method is simple to operate and easy to implement. The sizing agent can improve the processability of the carbon fiber and the mechanical property of carbon fiber-enhanced resin-based composite materials when used in carbon fiber.

Description

technical field [0001] The invention relates to a carbon fiber sizing agent and its preparation method and application, in particular to a carbon fiber emulsion type composite sizing agent and its preparation method and application. Background technique [0002] Carbon fiber is the most important reinforcing material of advanced composite materials, and has been widely used in various fields of military and civilian industries. However, carbon fiber is a brittle material. During the production and processing process, the wool and monofilament are easily broken by mechanical friction, which reduces the strength of carbon fiber and affects the mechanical properties of composite materials. In order to improve the strength and further processing performance of the fiber, the carbon fiber production line is equipped with a sizing device before winding. Sizing is to coat a layer of protective glue on the surface of carbon fiber, which can not only improve the processing performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/55D06M15/53D06M101/40
Inventor 陈娟葛曷一刘建叶
Owner UNIV OF JINAN
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