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Fiber honeycomb composite board and preparation method thereof

A technology of honeycomb composite panels and composite panels, applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., can solve problems such as low production efficiency, cumbersome operation, and increased work intensity

Inactive Publication Date: 2016-12-07
QINGDAO VICTALL RAILWAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Because the density of the aluminum plate is much higher than that of the fiber cloth, the overall weight of the product in this structural form is relatively large, and each interlayer structure in the aluminum plate-aluminum honeycomb-aluminum plate structure requires an adhesive for bonding, and the adhesive is about 450g / m 2 , the overall weight will increase again;
[0004] 2. When the aluminum plate-aluminum honeycomb-aluminum plate structure is solidified and formed, the temperature is controlled between 20-30°C, and the curing time is at least 8 hours, which takes a long time and the production efficiency is low; and after curing and forming, it needs turnover painting operation , the operation is cumbersome and the work intensity increases

Method used

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  • Fiber honeycomb composite board and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A fiber honeycomb composite panel, the middle part of the composite panel is an aluminum honeycomb core ⑤ layer, and the two sides of the aluminum honeycomb core ⑤ layer are arranged outwards in sequence with a glass fiber ④ layer, a high-strength fiber ③ layer, a PU foam material ② layer and a mold ① layer of inner paint.

[0038] The high-strength fiber ③ layer is a carbon fiber layer. Carbon fiber has strong hiding power, high strength, low density, good coloring power, good adhesion, good wear resistance and flexibility.

[0039] The weaving method of the carbon fiber layer is twill weave, and its surface density is 200g / m 2 . According to the actual production needs of the industry to control the size of its surface density.

[0040] The surface density of glass fiber ④ is 400g / m 2 . According to the actual production needs of the industry to control the size of its surface density.

Embodiment 2

[0042] A fiber honeycomb composite panel, the middle part of the composite panel is an aluminum honeycomb core ⑤ layer, and the two sides of the aluminum honeycomb core ⑤ layer are arranged outwards in sequence with a glass fiber ④ layer, a high-strength fiber ③ layer, a PU foam material ② layer and a mold ① layer of inner paint.

[0043] The high-strength fiber layer ③ is an aramid fiber layer. Aramid fiber has excellent properties of ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, insulation, anti-aging, and long life cycle.

[0044] The weaving method of the aramid fiber layer is twill weave, and its surface density is 200g / m 2 . According to the actual production needs of the industry to control the size of its surface density.

[0045] The surface density of glass fiber ④ is 400g / m 2 . According to the actual production needs of the industry to control the size of its surface density.

Embodiment 3

[0047] A preparation method of the fiber honeycomb composite panel in embodiment 1, the steps are as follows:

[0048] 1) After diluting the mold cavity paint and MEK solvent in a ratio of 1:5 to a viscosity of 10s, spray it on the mold cavity;

[0049] 2) Lay each layer in sequence according to the carbon fiber layer, glass fiber layer ④, aluminum honeycomb core ⑤ layer, glass fiber ④ layer, and carbon fiber layer;

[0050] 3) Spray PU foam material on the paved layered structure ②.

[0051] 4) Put the sprayed structure into the inner cavity of the painted mold, apply pressure, and form the composite board.

[0052] Before the step 1), spray a release agent into the mold, wipe it clean with a cotton cloth, and then control the temperature of the mold at 120°C.

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Abstract

The invention relates to the field of novel composite boards and particularly relates to a quickly-formed and light fiber honeycomb composite board and a preparation method thereof. An aluminum honeycomb core layer is arranged in the middle of the fiber honeycomb composite board, and glass fiber layers, high-strength fiber layers, PU foam material layers and in-mold coating layers are sequentially arranged on two sides of the aluminum honeycomb core layer from inside to outside. The preparation method comprises the following steps: (1) diluting mold cavity paint and an MEK solvent to a viscosity of 10s in a proportion of 1 to (4-6), and spraying into a mold cavity; (2) sequentially paving the high-strength fiber layer, the glass fiber layer, the aluminum honeycomb core layer, the glass fiber layer and the high-strength fiber layer; (3) spraying an PU foam material to a paved laminar structure; and (4) putting the sprayed structure into the painted mold cavity, and applying a pressure to form the composite board. The fiber honeycomb composite board has the beneficial effects that cutting processing can be realized; a product can be formed by the honeycomb composite boards or can be formed by the honeycomb composite boards through the connection of a fastening component; and the honeycomb composite board can be processed into different thickness and shapes, so that the industrial covering range is relatively wide.

Description

technical field [0001] The invention relates to the field of novel composite boards, in particular to a fiber honeycomb composite board with fast molding time, light weight and high strength and a preparation method thereof. Background technique [0002] At present, the lower parts and interior parts of the car, such as the bottom plate of the equipment cabin and the side wall, are mostly aluminum plate-aluminum honeycomb-aluminum plate, and the surface is painted. The multi-layer structure is bonded and cured by an adhesive. There are two problems in the above structure: [0003] 1. Because the density of the aluminum plate is much higher than that of the fiber cloth, the overall weight of the product in this structural form is relatively large, and each interlayer structure in the aluminum plate-aluminum honeycomb-aluminum plate structure requires an adhesive for bonding, and the adhesive is about 450g / m 2 , the overall weight will increase again; [0004] 2. When the al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/12B32B17/06B32B17/02B32B17/12B32B9/04B32B27/02B32B27/34B32B37/10
CPCB32B3/12B32B5/26B32B15/14B32B37/10B32B2255/02B32B2255/26B32B2262/0261B32B2262/101B32B2262/106B32B2307/554B32B2307/714B32B2307/7265
Inventor 刘皓锋孙广艳张永芳
Owner QINGDAO VICTALL RAILWAY CO LTD
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