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Emulsion type carbon fiber sizing agent and preparation method and application thereof

An emulsion-type 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, improved performance and increased stability

Inactive Publication Date: 2011-11-23
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation of component B is more cumbersome

Method used

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  • Emulsion type carbon fiber sizing agent and preparation method and application thereof
  • Emulsion type carbon fiber sizing agent and preparation method and application thereof
  • Emulsion type carbon fiber sizing agent and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040]Mix V-3200 vinyl ester resin and epoxidized polybutadiene resin uniformly at a mass ratio of 90:10 to obtain the main slurry of the sizing agent. Preheat the emulsifier NP-10 phosphate ammonium salt and OP-10 in a ratio of 90:10, and the penetrant secondary octanol polyoxyethylene ether (JFC-2) to 40°C and mix them evenly, then add them to the main slurry and stir Uniform, the quality of the emulsifier is 5% of the mass of the main slurry, and the quality of the penetrant is 1% of the mass of the main slurry. Then stir at a high speed at a constant rate of 12000r / min, add deionized water dropwise, the ratio of deionized water to the main slurry is 50:50, continue stirring for 20min after adding water, and obtain a sizing agent emulsion. Dilute this emulsion to a solid content of 1.0%, and use the dipping method to attach the sizing agent of this concentration to the polyacrylonitrile carbon fiber. The dipping time is 40s, and then it is placed in an oven at 80°C for 10 m...

Embodiment 2

[0062] Mix V-901 vinyl ester resin and epoxidized polybutadiene resin evenly in a mass ratio of 80:20, dissolve it in n-butanol to obtain the diluted sizing agent main slurry, the mass of n-butanol 40% of the mass of the main slurry. Preheat the emulsifier NP-10 ammonium sulfate and NP-10 in a ratio of 80:20, and the penetrant secondary octanol polyoxyethylene ether (JFC-2) to 40°C and mix them evenly before adding them to the diluted main slurry Stir well. Wherein the quality of the emulsifier is 8% of the mass of the main slurry, and the quality of the penetrant is 3% of the mass of the main slurry. Heat the mixture to 40°C and mix well, then stir at a high speed at a constant speed of 12000r / min, add deionized water drop by drop, the ratio of deionized water to main slurry is 60:40, continue stirring for 20min after adding water , to obtain a sizing agent emulsion. Dilute this emulsion to a solid content of 1.0%, and attach the sizing agent of this concentration to the p...

Embodiment 3

[0064] Mix V-3200 vinyl ester resin and CHX100 type ETBN uniformly at a mass ratio of 70:30, dissolve them in methyl ethyl ketone to obtain diluted sizing agent main slurry, the mass of methyl ethyl ketone is 60% of the mass of the main slurry. Preheat the emulsifier castor oil polyoxyethylene ether EL-40 and Nongru 602 in a ratio of 70:30, and the penetrant octylphenol polyoxyethylene ether (OP-7) to 50°C, mix well and add to the diluted Stir well in the main slurry. Wherein the quality of the emulsifier is 8% of the mass of the main slurry, and the quality of the penetrant is 5% of the mass of the main slurry. Heat the mixture to 50°C and mix evenly, then stir at a high speed at a constant speed of 12000r / min, add deionized water drop by drop, the ratio of deionized water to main slurry is 70:30, continue stirring for 30min after adding water , to obtain a sizing agent emulsion. Dilute this emulsion to a solid content of 1.0%, and attach the sizing agent of this concentrat...

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Abstract

The invention discloses an emulsion type carbon fiber sizing agent, which comprises main size, an emulsifier, an aid and deionized water. The aid comprises a diluent and a penetrant, wherein the emulsifier is 5 to 15 mass percent of the main size, the diluent is 0 to 120 mass percent of the main size, the penetrant is 1 to 5 mass percent of the main size, and the mass ratio of the deionized waterto the main size is 50-90:10-50. The invention also discloses a preparation method and application of the sizing agent. The sizing agent is suitable for unsaturated polyester resin and solves the problem of poor adhesion of the unsaturated polyester resin and the carbon fiber. After the sizing agent is used for sizing, the wear resistance of the carbon fiber is improved, and the broken filament amount is reduced, the post-processing performance of the fiber is improved, the interface adhesion of the carbon fiber and matrix resin is better, the shear strength between layers is improved, and the performance of composite materials is also improved.

Description

technical field [0001] The invention relates to a carbon fiber sizing agent and its preparation method and application, in particular to an emulsion type carbon fiber sizing agent suitable for unsaturated polyester resin matrix and its preparation method and application. Background technique [0002] Carbon fiber is an important reinforcing material for advanced composite materials, and has been widely used in various fields of military and civilian industries. However, carbon fiber is a brittle material. In the process of production and processing, it is easy to cause monofilament breakage and wool due to mechanical friction, which reduces the strength of carbon fiber and affects the mechanical properties of its composite material. 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 to im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/55D06M15/53D06M101/40
Inventor 葛曷一陈娟刘建叶
Owner UNIV OF JINAN
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