Thermoplastic composite, composite part and composite part manufacturing method

A composite material, thermoplastic technology, applied in the direction of coating, can solve the problems of heavy weight and poor mechanical properties, achieve the effect of light weight, excellent mechanical properties, and improve the shear strength between layers

Inactive Publication Date: 2020-05-01
BEIJING AUTOMOTIVE IND CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of poor mechanical properties and heavy weight of traditional thermoplastic composite materials, the present disclosure provides a thermoplastic composite material, a composite material part and a manufacturing method thereof

Method used

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  • Thermoplastic composite, composite part and composite part manufacturing method
  • Thermoplastic composite, composite part and composite part manufacturing method
  • Thermoplastic composite, composite part and composite part manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A continuous carbon fiber reinforced thermoplastic resin (polyamide-nylon 6, melting point of 225°C) prepreg is selected, and the weight ratio of resin to fiber in the prepreg is 85:15. By laser cutting, the prepreg is cut along the direction perpendicular to the fiber axis, and the prepreg is cut into a reinforcement sheet with a thickness of 0.5mm. The fiber length in the reinforcement sheet is within the range of 0.1-3mm. Normal distribution, the fibers basically extend along the thickness direction in the reinforcing sheet;

[0055] Select the dry cloth of carbon fiber uniaxial cloth, and coat the surface treatment agent mixed by graphene oxide slurry and oxidized carbon black on the surface of the dry cloth to complete the surface modification of the dry cloth;

[0056] Lay 12 layers of carbon fiber dry cloth after surface modification treatment in an orthogonal manner (that is, the laying angle between adjacent dry cloth layers is 90°), and lay the manufactured re...

Embodiment 2

[0060] Manufacture composite material 3 according to the step of embodiment 1, and embodiment 1 is different: the ratio of the weight content of resin and fiber in the prepreg is 50:50.

Embodiment 3

[0062] Manufacture composite material 3 according to the steps of Example 1, the difference from Example 1 is that the prepreg is cut into a reinforcement sheet with a thickness of 1.2mm, and the fiber length in the reinforcement sheet is normal within the range of 0.03-7mm distributed.

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Abstract

The invention relates to a thermoplastic composite, a composite part and a composite part manufacturing method. The composite comprises a plurality of stacked fiber dry cloth layers, and reinforcing sheet layers are laid between the adjacent fiber dry cloth layers, wherein the reinforcing sheet layers contain thermoplastic resin and discontinuous fibers, at least part of the discontinuous fibers extend in the thickness direction of the reinforcing sheet layers, and the end parts of at least part of the discontinuous fibers extend into one or more adjacent fiber dry cloth layers. According to the technical scheme, the composite is high in interlayer shear strength and goof in mechanical strength, and has the advantage of being light in weight.

Description

technical field [0001] The present disclosure relates to the field of lightweight automobiles, in particular, to a thermoplastic composite material, a composite material component and a manufacturing method thereof. Background technique [0002] The overall mechanical properties of thermoplastic composites prepared by traditional methods are poor, and the materials used are too heavy and heavy, which cannot achieve the desired lightweight effect. Contents of the invention [0003] In order to solve the problems of poor mechanical properties and heavy weight of traditional thermoplastic composite materials, the present disclosure provides a thermoplastic composite material, a composite material component and a manufacturing method thereof. [0004] In order to achieve the above object, the first aspect of the present disclosure provides a thermoplastic composite material, the composite material includes a plurality of laminated fiber dry cloth layers; wherein, [0005] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/16B29C70/34B29C70/54B29B15/14B29B15/10
CPCB29C70/16B29C70/34B29C70/54B29C70/545B29B15/125B29B15/14B29B15/10
Inventor 段瑛涛王智文
Owner BEIJING AUTOMOTIVE IND CORP
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