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Composite material multilayer structure and manufacturing method thereof

A multi-layer structure and composite material technology, applied in the field of composite materials, can solve the problems of increasing the weight of the bumper, affecting the fuel consumption and acceleration performance of the car, and achieving the effect of weight reduction

Inactive Publication Date: 2021-01-29
UHT UNITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the inner structure of the bumper used in most cars is made of metal materials. Although it has the effect of impact resistance and fire resistance under a certain thickness, it also relatively greatly increases the weight of the bumper, which will indirectly affect the weight of the car. Fuel consumption and acceleration performance

Method used

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  • Composite material multilayer structure and manufacturing method thereof
  • Composite material multilayer structure and manufacturing method thereof
  • Composite material multilayer structure and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0091] The difference between embodiment 2 and comparative example 1 is that the total fiber content of embodiment 2 is reduced to 10wt% and the average length of the plurality of fiber filaments is 35mm, but the flexural strength of embodiment 2 is 188MPa and flexural modulus 9GPa Higher than the flexural strength 150MPa and flexural modulus 8GPa of Comparative Example 1. Therefore, it is sufficient to prove that the fiber network structure 32 uses a plurality of fiber filaments with an average length greater than or equal to 35 mm, which can reduce the total fiber content to 10% wt and save costs.

[0092] Next, based on Example 2, under the condition that the total fiber content is maintained at 10wt%, Example 2 adopts a plurality of fibers with an average length of 35 mm, and Example 3 adopts a plurality of fibers with an average length of 100 mm. Silk, embodiment 4 adopts a plurality of the fiber filaments with an average length of 250 mm, and embodiment 5 adopts a plural...

Embodiment 6

[0094] The difference between Example 6 and Comparative Example 1 is that the total fiber content of Example 6 is reduced to 10wt%, the average length of the plurality of fiber filaments is 35mm, and the weight of the fiber network structure 32 is reduced to 1150g / m 2 And the thickness is reduced from 2.0 mm of Comparative Example 1 to 0.9 mm, but the bending strength of Example 6 is 171 MPa higher than that of Comparative Example 1 of 150 MPa. Therefore, it is enough to prove that the fiber network structure 32 uses a plurality of fiber filaments with an average length greater than or equal to 35mm, which can reduce the total fiber content to 10%, and can reduce the weight of the fiber network structure 32 and reduce the fiber network structure. The thickness of 32, in addition to saving costs, can be widely used in thin and light products.

Embodiment 7

[0095] The difference between Example 7 and Comparative Example 1 is that the total fiber content of Example 7 is reduced to 5wt%, the average length of the plurality of fiber filaments is 35mm, and the weight of the fiber network structure 32 is reduced to 1150g / m 2 And the thickness is reduced from 2.0mm of Comparative Example 1 to 0.9mm, but the flexural strength of 160MPa of Example 7 is higher than that of Comparative Example 1 of 150MPa. Therefore, it is sufficient to prove that the fiber network structure 32 uses a plurality of fiber filaments with an average length greater than or equal to 35mm, which can reduce the total fiber content to 5%, and can reduce the weight of the fiber network structure 32 and reduce the fiber network structure. The thickness of 32, in addition to saving costs, can be widely used in thin and light products.

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Abstract

The invention discloses a composite material multilayer structure and a manufacturing method thereof, the composite material multilayer structure comprises a core layer of a foaming or honeycomb structure, and the composite material multilayer structure comprises a first adhesive layer, a fiber material layer, a second adhesive layer and a metal material layer which are respectively stacked on theupper surface and the lower surface of the core layer in sequence, wherein the fiber material layer comprises a fiber net structure, and the fiber net structure is formed by mutually winding a plurality of discontinuous fibers in a non-directional distribution mode. The manufacturing method of the composite material multilayer structure sequentially at least comprises a material providing step, alaminating step and a forming step. Therefore, compared with the prior art, the composite material multilayer structure has the characteristics of light weight, high rigidity, fire prevention, heat insulation, wear resistance, impact resistance and the like.

Description

technical field [0001] The present invention relates to a composite material, in particular to a composite material multi-layer structure with properties such as light weight, high rigidity, fire prevention, heat insulation, wear resistance and impact resistance, and a manufacturing method thereof. Background technique [0002] By the way, metal materials are widely used in vehicles, aircrafts, ships, etc. Others such as electronic equipment casings, sports equipment, decoration materials, etc. can also see the use of metal materials. It can be seen that metal materials are widely used in all fields. One of the indispensable important materials. [0003] However, with the development of modern industry and science and technology, more and more structural devices focus on lightweight in order to meet the needs of consumers or achieve better performance. For example, the inner structure of the bumper used in most cars is made of metal materials. Although it has the effect of ...

Claims

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Application Information

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IPC IPC(8): B32B3/12B32B5/02B32B5/26B32B15/14B32B15/20B32B27/06B32B27/12B32B27/30B32B27/36B32B27/40B32B29/00B32B37/06B32B37/10B32B7/12
CPCB32B3/12B32B5/02B32B5/18B32B5/24B32B5/26B32B15/14B32B15/20B32B27/12B32B27/30B32B27/304B32B27/308B32B27/36B32B27/40B32B29/00B32B37/06B32B37/10B32B7/12B32B2250/40B32B2266/0221B32B2266/0235B32B2266/0264B32B2266/0278B32B2266/045B32B2307/306B32B2307/3065B32B2307/536B32B2307/554B32B2307/558
Inventor 王智永庄文彦
Owner UHT UNITECH
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