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Carbon fiber hybrid resin-base composite material foam sandwich structure and preparation technique thereof

A composite material, sandwich structure technology, applied in the superstructure, superstructure sub-assembly, transportation and packaging, etc., can solve the problems of easy damage, low elongation at break, etc., to save costs, improve impact resistance, Excellent effect of anti-corrosion and other properties

Inactive Publication Date: 2012-10-24
INNER MONGOLIA JINGANG HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the status quo of the prior art, the present invention utilizes the hybrid effect of fibers and integrates the respective advantages of various fibers, especially utilizes the impact resistance performance of organic fibers and the excellent structural properties of carbon fibers to effectively solve the problem of low elongation at break of a single carbon fiber composite material. , easy to cause damage after impact, provide a carbon fiber hybrid resin with excellent strength, stiffness, impact resistance, moisture resistance, corrosion resistance, fatigue and other properties and low cost that can be applied to composite materials for automobile body panels Composite foam sandwich structural material and its preparation process and automobile body panels prepared from the structural material

Method used

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  • Carbon fiber hybrid resin-base composite material foam sandwich structure and preparation technique thereof
  • Carbon fiber hybrid resin-base composite material foam sandwich structure and preparation technique thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Preparation of carbon fiber and aramid fiber interlayer mixed form reinforced resin matrix composite sandwich structure automobile roof cover parts. Its preparation process flow chart is as follows figure 1 Shown:

[0034] 1. Mold pretreatment: Wipe the mold surface with alcohol, and then spray AXEL S-19C sealing agent and AXELX-807 release agent on the mold surface.

[0035] 2. Cutting and laying reinforcements: Cut 4 pieces of 3K carbon fiber cloth plain weave, 2 pieces of biaxial aramid fiber cloth and 1 piece of PMI sandwich material according to the surface size of the mold, and dry them in an oven; press figure 2 As shown, the reinforcement is laid on the mold to obtain a preform, and the laying sequence from top to bottom is carbon fiber cloth, aramid fiber cloth, carbon fiber cloth, PMI sandwich, carbon fiber cloth, aramid fiber cloth, carbon fiber cloth.

[0036] 3. Cutting and covering the release cloth: Lay the cut R85PA66 release cloth on the surface of t...

Embodiment 2

[0043] Preparation of carbon fiber and aramid fiber layers mixed in the form of reinforced resin-based composite foam sandwich structure automobile door parts, the process flow chart is as follows figure 1 Shown:

[0044] The 1st step is identical with specific embodiment 1.

[0045] 2. Cutting and laying reinforcements: Cut six pieces of mixed carbon / aramid fiber cloth according to the surface size of the mold, and dry them in an oven; lay them on the mold in turn to obtain a preform, and then Lay PVC foam sandwich on the third layer of fiber cloth.

[0046] The 3rd, 4th, 5th steps are identical with specific embodiment 1.

[0047]6. Resin system filling and impregnating the preform: open the injection port, stir the unsaturated polyester resin system that has been vacuumed and degassed, and use vacuum negative pressure to inject the mold cavity to impregnate the above preform, etc. After the preform is completely impregnated, close the injection port, and continue to vacu...

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PUM

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Abstract

The invention discloses an automobile body cover part. A vacuum introduction molding technique is utilized to form a carbon fiber hybrid resin-base composite material foam sandwich structure composite material. The carbon fiber hybrid reinforcing body comprises 60-90% (volume) of carbon fiber and 10-40% (volume) of glass fiber or second organic fiber. The invention can be used for obtaining an automobile body cover part which has the advantages of low density, high strength, high rigidity, high shock resistance, excellent fatigue property, excellent moisture resistance, excellent corrosion resistance, favorable surface effect and the like. The invention greatly prolongs the service life, enhances the safety and reliability, and saves the cost.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a carbon fiber hybrid resin-based composite material foam sandwich structure, a preparation process thereof, and an automobile body covering made of the structure. Background technique [0002] With the development of the world's automobile industry, the consumption of petroleum energy is increasing day by day, and the pace from energy shortage to energy depletion is accelerated. At the same time, the air pollution caused by automobile emissions and the global greenhouse effect have become public hazards for all human beings. The sustainable development of human society and the automobile industry has been greatly threatened. It has become a very urgent task for the world's automobile industry to develop new energy sources and new power for automobiles. Although new energy electric vehicles have the advantages of zero emissions, optimized energy structure, and convenient driving and ...

Claims

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Application Information

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IPC IPC(8): B29C70/08B29C70/34B62D25/00
Inventor 严科飞任伟华
Owner INNER MONGOLIA JINGANG HEAVY IND
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