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Continuous carbon fiber reinforced polyaryletherketone composite prepreg tape and preparation method thereof

A composite material, phenolphthalein polyaryletherketone technology, applied in the field of continuous fiber reinforced phenolphthalein polyaryletherketone composite material prepreg tape and its preparation, can solve the problems of poor process stability, high maintenance cost, and easy moisture absorption of solvents, etc., to achieve Excellent mechanical and thermal properties, reduced production costs, and shortened drying time

Active Publication Date: 2020-06-26
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of preparing composite materials by solution presoaking method, the solvent is easy to absorb moisture, easy to volatilize, difficult to recycle, poor process stability, high maintenance cost, etc., and to provide a continuous carbon fiber reinforced phenolphthalein polyaryletherketone composite material prepreg tape and its preparation method

Method used

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  • Continuous carbon fiber reinforced polyaryletherketone composite prepreg tape and preparation method thereof
  • Continuous carbon fiber reinforced polyaryletherketone composite prepreg tape and preparation method thereof
  • Continuous carbon fiber reinforced polyaryletherketone composite prepreg tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dissolve 6kg of phenolphthalein polyaryl ether ketone resin in acetophenone, pour a solution with a mass concentration of 30% into the dipping tank, and immerse 12kg of Toray T700-12K carbon fiber through the tank with a traction rate of 0.6m / min , Through a mixed solution of acetone and toluene (the volume ratio of acetone to toluene is 4:1), the resin is melted by a hot drying tunnel at 220°C / 15min+350°C / 15min, and the resin is compacted under a pressure of 5MPa at 330°C. Dip tape, the fiber volume fraction is 60%. The flexural strength of the composite material prepared by the molding process of the prepreg tape is 1850MPa, and the interlayer shear strength is 105MPa.

[0022] The structure of the phenolphthalein polyaryl ether ketone resin is as follows: m=0.7, n=0.3

[0023]

Embodiment 2

[0025] Dissolve 3kg of phenolphthalein polyaryl ether ketone resin in benzyl alcohol, and pour a solution with a mass concentration of 15% into the dipping tank, and then impregnate 10kg of CCF700S-12K carbon fiber through the dipping tank at a traction rate of 0.3m / min. The solution is heated in a drying tunnel at 220°C / 40min+360°C / 20min to melt the resin, and compacted by a 350°C hot press roll under a pressure of 10MPa to obtain a prepreg tape with a fiber volume fraction of 75%. The flexural strength of the composite material prepared by the molding process of the prepreg tape is 1923MPa, and the interlayer shear strength is 112MPa.

[0026] The structure of the phenolphthalein polyaryl ether ketone resin is as follows: m=0.8, n=0.2

[0027]

Embodiment 3

[0029] Dissolve 4 kg of phenolphthalein polyaryl ether ketone resin in cyclohexanone, pour a solution with a mass concentration of 20% into the dipping tank, and immerse 11 kg of Toray T800-6K carbon fiber through the tank with a traction rate of 0.4m / min , Through a mixed solution of ethanol and xylene (the volume ratio of ethanol and xylene is 8:2), the resin is melted by a hot drying tunnel at 200℃ / 30min+380℃ / 15min, and the resin is compacted by a 360℃ hot press roll under 3MPa pressure The fiber volume fraction of prepreg tape is 70%. The flexural strength of the composite material prepared by the molding process of the prepreg tape is 1872MPa, and the interlayer shear strength is 110MPa.

[0030] The structure of the phenolphthalein polyaryl ether ketone resin is as follows: m=0.5, n=0.5

[0031]

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Abstract

The invention provides a continuous fiber reinforced phenolphthalein polyaryletherketone composite prepreg tape and a preparation method thereof, and belongs to the technical field of polymer composite materials. The method comprises the following steps: dissolving phenolphthalein polyaryletherketone resin into an organic solvent to prepare a resin solution with a mass concentration of 15%-35%, dipping the continuous carbon fiber into a resin solution, and replacing the solvent by coagulating bath, heating a prepreg tape by a hot drying channel at 200DEG C-380DEG C for 30min-60min to rapidly melt the resin, compacting the prepreg tape by a hot pressing roller at 330-380DEG C under a pressure of 2-20MPa, and then conducting cooling and cutting to obtain the prepreg tape. The composite prepreg tape provided by the invention is suitable for molding large-size parts, can be used for preparing composite material parts with high fibrous body content, and has excellent mechanical properties and thermal properties.

Description

Technical field [0001] The invention belongs to the technical field of polymer composite materials, and specifically relates to a continuous fiber reinforced phenolphthalein polyaryletherketone composite material prepreg tape and a preparation method thereof. Background technique [0002] Carbon fiber reinforced thermoplastic resin-based composites have high specific strength, good impact resistance, corrosion resistance, short molding cycle, and recyclable waste materials. They have developed rapidly in recent years and have been successfully applied to high technology such as aerospace, automobiles, and electronics. field. At present, the commercialized polyaryletherketone prepreg tapes on the market are mostly PEEK and PEKK crystalline matrix resins. The melt impregnation method is generally used, and the molten resin is fully infiltrated by the carbon fiber through mechanical pressure extrusion. The high melt viscosity will lead to insufficient fiber prepreg, pores in the pr...

Claims

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Application Information

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IPC IPC(8): C08L71/10C08K7/06C08J5/04
CPCC08J5/042C08J2371/10C08K7/06
Inventor 周光远王红华张兴迪王志鹏
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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