Carbon fiber emulsion sizing agent and preparation method and application thereof

A technology of carbon fiber and sizing agent, which is applied in the directions of carbon fiber, fiber processing, textile and paper making, etc., can solve the problems of complicated preparation of component B, and achieve the effects of easy implementation, increased stability and improved performance

Inactive Publication Date: 2011-09-28
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
Comparison scheme
Effect test

Embodiment 1

[0037] Preheat the emulsifier NP-10 phosphate ammonium salt and OP-10 at a ratio of 75:25, and the emulsifier and penetrant sec-octanol polyoxyethylene ether (JFC-2) at a ratio of 80:20 to 50℃ and mix well. Place it in the container to get the mixing aid. The epoxy resin E-44 and the epoxidized polybutadiene resin were mixed uniformly at a mass ratio of 80:20 to obtain the main sizing agent slurry, which was dissolved in acetone, and the mass ratio of acetone to the main slurry was 40: 60, then add the above mixing aids, the added amount of mixing aids is 15% of the main slurry. Heat the mixture to 50°C and mix uniformly, then stir at a high speed at a constant rate of 10000r / min. Add deionized water dropwise. The ratio of deionized water to the main slurry is 80:20. After adding water, continue to stir for 20 minutes , Get sizing agent emulsion. The emulsion was diluted to a solid content of 0.5%, and the concentration of the sizing agent was attached to the polyacrylonitril...

Embodiment 2

[0058] The emulsifier NP-10 ammonium sulfate and NP-10 are in a ratio of 70:30, and the emulsifier and penetrant OP-7 are preheated to 60°C in a ratio of 85:15, mixed uniformly, and then placed in a container to obtain a mixing aid. The epoxy resin E-51 and the epoxidized polybutadiene resin were mixed uniformly at a mass ratio of 20:80 to obtain the main sizing agent slurry, which was dissolved in acetone, and the mass ratio of acetone to the main slurry was 50: 50, then add the above mixing aids, the added amount of mixing aids is 12% of the main slurry. Heat the mixture to 60℃ and mix evenly, then stir at a high speed at a constant rate of 11000r / min, add deionized water dropwise, the ratio of deionized water to the main slurry is 70:30, and continue stirring for 20 minutes after adding water , Get sizing agent emulsion. The emulsion was diluted to a solid content of 1.0%, and the concentration of the sizing agent was attached to the polyacrylonitrile carbon fiber by the di...

Embodiment 3

[0060] Preheat the emulsifier NP-10 ammonium sulfate to agricultural milk 1601 in a ratio of 65:35, and the emulsifier and penetrant sec-octanol polyoxyethylene ether (JFC-2) in a ratio of 90:10 to 60℃, mix well and place it in In the container, a mixing aid is obtained. The epoxy resin E-55 and the epoxidized polybutadiene resin were mixed uniformly at a mass ratio of 25:75 to obtain the main sizing agent slurry, which was dissolved in acetone, and the mass ratio of acetone to the main slurry was 50: 50, then add the above mixing aids, the added amount of mixing aids is 10% of the main slurry. Heat the mixture to 60℃ and mix uniformly, then stir at a constant speed of 9000r / min at a high speed, add deionized water dropwise, the ratio of deionized water to the main slurry is 60:40, continue to stir for 30min after adding water , Get sizing agent emulsion. The emulsion was diluted to a solid content of 2.0%, and the concentration of the sizing agent was attached to the polyacr...

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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 appliedto 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 a preparation method and application thereof, in particular to a carbon fiber emulsion type composite sizing agent and a preparation method and application thereof. Background technique [0002] Carbon fiber is the most important reinforcing material for advanced composite materials and has been widely used in various fields of military and civil industries. However, carbon fiber is a brittle material. Mechanical friction during production and processing can easily cause hair and monofilament breakage, which reduces the strength of carbon fiber and affects the mechanical properties of composite materials. In order to improve fiber strength and deep processing performance, 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 the carbon fiber, which can not only improve the processing performance of the carbon f...

Claims

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Application Information

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Patent Type & Authority Patents(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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