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Composite laminate for automobiles

A composite material layer and laminate technology, which is applied in lamination, lamination equipment, lamination auxiliary operations, etc., can solve the problem of processing technology without considering the interaction between mixture resin molecules and reinforcing agents, decline, and no obvious change in mechanical properties and other problems, to improve the interface performance and interlayer mechanical properties, and solve the effect of viscosity

Inactive Publication Date: 2018-10-19
北京机电工程总体设计部 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current composite laminate products for automobiles, although the reinforcement material and the resin matrix can be simply mixed in solution, melt mixed or in-situ composited through surface chemical treatment, but the interaction between the mixture resin molecules and the reinforcement is not considered. The effect and characteristics of different processing techniques, the reinforcing components in the resin matrix also failed to achieve a good dispersion state, resulting in many cases the mechanical properties of the resin matrix and its carbon fiber reinforced composites did not change significantly, or even decreased, and at the same time There has always been an insoluble contradiction in improving the strength and toughness of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of composite material laminated plate for automobile, described laminated plate is that the carbon fiber cloth covered by the mixture resin that contains nano-alloy powder and PA6 diaphragm are laminated alternately and molded pressed plate and make, the preparation method of described laminated plate comprises The following steps:

[0016] 1) Wash the nano-alloy powder with anhydrous ethanol solvent several times, add it to the mixture resin in the molten state according to a certain proportion, stir for 0.5h until the mixture is uniform, and then immerse the carbon fiber cloth into the mixed resin mixture , make the resin uniformly cover the carbon fiber cloth, take it out, cool and shape it, and dry it in an oven to make a semi-finished carbon fiber cloth. The composition of the nano-alloy powder includes: Al 7%, Ti 6%, Ag 1.0%, Au 0.6%, Ce 0.3%, Pr 0.1%, and the balance is copper. The preparation step of the mixture resin is to prepare a resin-rubber system ...

Embodiment 2

[0020] A kind of composite material laminated plate for automobile, described laminated plate is that the carbon fiber cloth covered by the mixture resin that contains nano-alloy powder and PA6 diaphragm are laminated alternately and molded pressed plate and make, the preparation method of described laminated plate comprises The following steps:

[0021] 1) wash the nano-alloy powder with absolute ethanol solvent several times, add it to the mixture resin in the molten state according to a certain proportion, stir for 1 hour until the mixture is uniform, and then immerse the carbon fiber cloth into the mixed resin mixture, Cover the carbon fiber cloth evenly with the resin, take it out, cool and shape it, and dry it in an oven to make a semi-finished carbon fiber cloth. The composition of the nano-alloy powder includes: Al 10%, Ti 7.5%, Ag 2.0%, Au 0.8%, Ce 0.3%, Pr 0.1%, and the balance is copper. The preparation step of the mixture resin is to prepare a resin-rubber system ...

Embodiment 3

[0025] A kind of composite material laminated plate for automobile, described laminated plate is that the carbon fiber cloth covered by the mixture resin that contains nano-alloy powder and PA6 diaphragm are laminated alternately and molded pressed plate and make, the preparation method of described laminated plate comprises The following steps:

[0026] 1) wash the nano-alloy powder with absolute ethanol solvent several times, add it to the mixture resin in the molten state according to a certain proportion, stir for 1 hour until the mixture is uniform, and then immerse the carbon fiber cloth into the mixed resin mixture, Cover the carbon fiber cloth evenly with the resin, take it out, cool and shape it, and dry it in an oven to make a semi-finished carbon fiber cloth. The composition of the nano-alloy powder includes: Al 8%, Ti 5.5%, Ag 1.5%, Au 0.8%, Ce 0.5%, Pr 0.2%, and the balance is copper. The preparation step of the mixture resin is to prepare a resin-rubber system w...

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Abstract

The invention relates to a composite laminate for automobiles, and the composite laminate is prepared as follows: pre-treating mixture resin, adding nano-scale alloy powder containing rare earth elements, uniformly coating carbon fiber cloth with the resin, alternately stacking semi-finished carbon fiber cloth and PA6 films, assembling a mold and hot pressing to obtain the composite laminate. Thetechnical problems that the viscosity of the resin is increased and the dispersion of the resin is reduced after addition of nanoparticles are solved, and the synergistic reinforcement and tougheningof the composite material are realized, and the interface performance and interlayer mechanical properties of a carbon fiber composite material are remarkably improved.

Description

technical field [0001] The invention relates to the field of layered materials, in particular to a composite material laminate for automobiles. Background technique [0002] With its light weight, high strength, high modulus, high temperature resistance and other performance advantages, CFRP has become an important basic material for national defense, aerospace, new energy and high-tech industries, and is the strategic key material that ranks first in the field of new materials. The resin matrix is ​​the weakest and first damaged component in CFRP, which plays a vital role in the overall performance of the composite. With the continuous expansion of the application range of carbon fiber / epoxy resin composite materials in the fields of aviation, aerospace, energy, and transportation, higher requirements are put forward for the strength and toughness of the supporting resin matrix. [0003] When the particle size is at the nanometer level, its surface energy is many times lar...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B5/02B32B9/04B32B27/34B32B27/02B32B5/26B32B27/04B32B27/38B32B7/08B32B33/00B32B37/10B32B37/06B32B38/08B32B38/16C08L63/00C08L23/06C08K13/04C08K7/06C08K3/08
CPCB32B5/02B32B5/26B32B7/08B32B33/00B32B37/06B32B37/10B32B38/08B32B38/164B32B2250/20B32B2260/021B32B2260/04B32B2260/046B32B2262/0261B32B2262/106B32B2307/50B32B2307/558B32B2605/08C08K2003/0806C08K2003/0812C08K2003/0831C08K2003/085C08K2003/0881C08K2201/011C08L63/00C08L23/06C08K13/04C08K7/06C08K3/08
Inventor 苏彤
Owner 北京机电工程总体设计部
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