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Method and equipment for preparing continuous fiber-reinforced polyether-ether-ketone composite material prepreg tape

A technology of continuous fiber and polyether ether ketone, which is applied in the field of composite material reinforcement preparation, can solve the problems of easy damage of fibers and weak interfacial interaction of resin matrix, etc., and achieve the effects of reducing melt viscosity, improving interfacial interaction, and improving impregnation effect

Active Publication Date: 2015-05-20
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a manufacturing method and equipment for a continuous fiber reinforced polyether ether ketone composite material prepreg tape, which solves the problem of the impregnation process of the polyetheretherketone composite material prepreg tape. The existing fiber is easy to be damaged and the interface with the resin matrix is ​​weak; this method is easy to operate, and can continuously produce continuous fiber-reinforced polyetheretherketone composite material prepreg tape, and this equipment can effectively improve production efficiency

Method used

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  • Method and equipment for preparing continuous fiber-reinforced polyether-ether-ketone composite material prepreg tape
  • Method and equipment for preparing continuous fiber-reinforced polyether-ether-ketone composite material prepreg tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] To prepare a carbon fiber content of 53% reinforced polyether ether ketone composite material prepreg tape, the steps are as follows:

[0081] 1) The parts by weight ratio of each raw material in the mixed batch is as follows:

[0082]

[0083] Among them, polyetheretherketone (PEEK) is selected from Victrex PEEK / 450G;

[0084] Among them, phenolphthalein PEK (PEK-C) is produced by Xuzhou Chemical Factory, and its intrinsic viscosity is 0.81;

[0085] Among them, diphenyl sulfone (DPS) is produced by Suzhou Yinsheng Chemical Company;

[0086] 2) mix the raw materials evenly;

[0087] 3) Molding on the manufacturing equipment: the mixed ingredients enter the twin-screw extruder 3 through the hopper (the temperature of the melting section is 380° C.), and after melting, the modified PEEK resin melt enters the resin flow channel 51 of the impregnation mold 5, continuously The fiber bundle is drawn forward by the winding device 8; the melt extrudes the continuous fibe...

Embodiment 2

[0091] To prepare a carbon fiber content of 30% reinforced polyether ether ketone composite material prepreg tape, the steps are as follows:

[0092] 1) The parts by weight ratio of each raw material in the mixed batch is as follows:

[0093]

[0094] 2) mix the raw materials evenly;

[0095] 3) molding is carried out on the manufacturing equipment; the difference between the equipment parameters of the present embodiment and embodiment 1 is that the tension of the tension controller of the yarn dividing device 1 is controlled at 30N, and the screw speed of the twin-screw extruder 3 is 45rpm / min , the winding speed of the winding device 8 is 7.5m / min; in addition, the temperature of the heating box is 300°C, the temperature of the twin-screw extruder is 400°C, and the temperature of the dipping mold is 390°C;

[0096] 4) After cooling the prepreg tape coming out of the impregnation mold 5, it is wound up on the winding device;

[0097] 5) The wound prepreg tape is removed...

Embodiment 3

[0103] Preparation of prepreg tape of polyether ether ketone composite material with 21% carbon fiber content

[0104] 1) The parts by weight ratio of each raw material in the mixed batch is as follows:

[0105]

[0106] 2) mix the raw materials evenly;

[0107] 3) molding is carried out on the manufacturing equipment; the difference between the equipment parameters of the present embodiment and embodiment 1 is that the tension of the tension controller of the yarn dividing device 1 is controlled at 5N, and the screw speed of the twin-screw extruder is 100rpm / min, and the coil The winding speed of the winding device 8 is 5m / min; in addition, the temperature of the heating box is 320°C, the temperature of the twin-screw extruder is 350°C, and the temperature of the dipping mold is 345°C;

[0108] 4) After cooling the prepreg tape coming out of the impregnation mold 5, it is wound up on the winding device;

[0109] 5) The wound prepreg tape is removed from the winding devic...

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Abstract

The invention discloses a method and equipment for manufacturing a continuous fiber-reinforced polyether-ether-ketone composite material prepreg tape. The method comprises the following steps: (1) splitting; (2) preheating; (3) cladding, namely, feeding the preheated continuous fiber bundle into a dipping mold to be mixed with modified PEEK resin melt extruded from a twin-screw extruder in the dipping mold, and cladding the modified PEEK resin melt on the continuous fiber bundle under the pressure action; and (4) winding. The equipment comprises a splitting device, a heating box, a material mixing device and a winding device which are arranged from left to right, wherein the material mixing device comprises the twin-screw extruder and the dipping mold; the dipping mold is connected with the twin-screw extruder and is used for cladding the resin melt flowing from a resin runner on the continuous fiber bundle under the pressure action; and the winding device is used for winding the prepreg tape which is discharged from the dipping mold. According to the method and the equipment, continuous production of the prepreg tape is ensured; blending modification and fiber dipping are integrated; the technological processes are reduced; and the efficiency is improved.

Description

technical field [0001] The invention belongs to the field of reinforced preparation of composite materials, and more specifically relates to a method and equipment for manufacturing a continuous fiber reinforced polyether ether ketone composite material prepreg tape. Background technique [0002] Continuous fiber reinforced thermoplastic composite products have many excellent comprehensive properties and are widely used. Continuous fiber reinforced thermoplastic composite materials are stored in the form of prepreg tapes, and then the prepreg tapes are processed into continuous fiber reinforced thermoplastic composite products. The mechanical properties of the prepreg tape are good, the production efficiency is high, and the demand is increasing rapidly; the prepreg tape is usually prepared by impregnating a resin matrix with fibers (such as carbon fibers). Thermoplastic resin prepreg tapes are being used more and more due to their outstanding recyclability and toughness. ...

Claims

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Application Information

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IPC IPC(8): C08L61/16C08L71/10C08K5/41C08K5/134C08K5/526C08K5/101B29C70/34B29C33/00B29C47/92B29C48/92
Inventor 黄志高周华民张云高西萍侯斌魁张逸郑兵
Owner HUAZHONG UNIV OF SCI & TECH
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