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Composite plate having sandwiched structure and preparation method thereof

A sandwich structure and composite board technology, applied in the field of composite boards, can solve the problems of easy damage, poor compression resistance, and difficulty in achieving the best energy absorption per unit mass, and achieve the best energy absorption and good compression resistance Effect

Inactive Publication Date: 2016-12-07
官忠伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sandwich structure is generally used to absorb impact energy, so it is usually made of aluminum alloy, carbon fiber, glass fiber, cardboard or other lightweight materials, and the surface layer of the panel is made of high-strength materials to resist the impact of hard objects. The performance of the structure is closely related to the structural shape and material selection of the sandwich. The existing sandwich structure is generally made of aluminum alloy or hard plastic, and its energy absorption per unit mass is difficult to achieve the best state. , it is also difficult to achieve a good impact resistance effect, and many sandwich structures are generally flat-topped, and the compressive performance is not good, and the junction between the flat top and the curved surface is easy to damage

Method used

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  • Composite plate having sandwiched structure and preparation method thereof
  • Composite plate having sandwiched structure and preparation method thereof

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Effect test

Embodiment 1

[0021] Please refer to figure 1 , a composite panel with a sandwich structure, the composite panel includes an upper panel 1, a lower panel 3 and a sandwich layer 2 between the upper panel 1 and the lower panel 3, the upper panel 1 and the lower panel 3 Prepared by glass fiber prepreg, the thickness G is 1.5mm, the sandwich layer 2 includes more than one spherical support device 21 and buffer 22 arranged in topological structure, and the buffer 22 is thermoplastic polyurethane Foam made of elastomeric rubber with a density of 1000 kg / m 3 . The thickness H of the spherical support device 21 is 3 mm, the buffer 22 is arranged between the upper panel 1 and the spherical support device 21 and between the spherical support device 21 and the lower panel 3, and the described spherical support device 21 is made of thermoplastic polyurethane and graphene, the thermoplastic polyurethane and graphene weight ratio is 25:1-50:1, and the number of layers of glass fiber prepreg is 15. The...

Embodiment 2

[0023] A preparation method of a composite panel with a sandwich structure, said preparation method comprising the steps of:

[0024] 7.1 After mixing the thermoplastic polyurethane rubber and graphene uniformly according to 1:1, put it into the mold used to prepare the spherical support device;

[0025] 7.2 Put the mold into a hot press for pressing at a temperature of 230°C and a pressure of 1.5MPa;

[0026] 7.3 Glue the upper and lower panels above and below the spherical support device;

[0027] 7.4 Inject PVC foam between the upper and lower panels.

[0028] Finally, the composite board with the spherical support device is obtained.

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Abstract

A composite plate having a sandwiched structure comprises an upper panel, a lower panel, and a sandwiched layer located between the upper panel and the lower panel; the sandwiched layer comprises more than one spherical supporting devices arrayed in a topological structure manner and buffer objects; the buffer objects are arranged between the upper panel and the spherical supporting devices and between the spherical supporting devices and the lower panel; the spherical supporting devices are made of thermoplastic polyurethane and nano materials. The composite plate belongs to the chemical technical field. The invention aims to provide the composite plate having the sandwiched structure and a preparation method thereof, wherein the composite plate adopts the spherical supporting devices having better compressive effect than a flat-roofed supporting structure, and makes the novel lightweight topological sandwiched structure achieve the best energy absorption-weight ratio and necessary stiffness.

Description

technical field [0001] The invention relates to a composite board, in particular to a structural composite board with a sandwich structure and a manufacturing method thereof. Background technique [0002] The sandwich structure is generally used to absorb impact energy, so it is usually made of aluminum alloy, carbon fiber, glass fiber, cardboard or other lightweight materials, and the surface layer of the panel is made of high-strength materials to resist the impact of hard objects. The performance of the structure is closely related to the structural shape and material selection of the sandwich. The existing sandwich structure is generally made of aluminum alloy or hard plastic, and its energy absorption per unit mass is difficult to achieve the best state. , It is also difficult to achieve better impact resistance, and many sandwich structures are generally flat-topped, with poor compressive performance, and the junction between the flat top and the curved surface is easi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/02B32B17/06B32B17/10B32B27/40B32B9/00B32B9/04B32B27/04B32B27/30B32B3/30B32B7/12B32B33/00B32B37/12B29C69/02B29L7/00
CPCB32B27/40B29C69/02B32B3/30B32B7/12B32B9/00B32B9/007B32B9/047B32B27/12B32B33/00B32B37/12B32B2250/03B32B2262/101B32B2266/0235B32B2266/0278B32B2307/558B32B2307/56
Inventor 官忠伟
Owner 官忠伟
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