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Laminate structure and preparation method thereof

A layering and construction technology, applied in the direction of chemical instruments and methods, lamination, lamination devices, etc., can solve the problems of skin and core debonding, adverse effects of sandwich structure stability, etc., to achieve peel strength improvement, Improves the bonding strength between layers and prevents delamination

Active Publication Date: 2022-05-27
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a layered structure to solve the problem that the existing sandwich structure will have an adverse effect on the structural stability of the sandwich structure due to the debonding of the skin and the core.

Method used

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  • Laminate structure and preparation method thereof
  • Laminate structure and preparation method thereof
  • Laminate structure and preparation method thereof

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Embodiment Construction

[0031] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing this Inventive embodiments and simplified descriptions are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limitin...

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Abstract

The invention relates to the technical field of composite materials, in particular to a layered structure and a preparation method thereof. This includes an outer skin and a core body, the core body is arranged on the outer skin; the layered structure also includes a foam rubber layer, the surface of the core body facing the outer skin is constructed with a sawtooth structure, and a sawtooth structure is arranged between the outer skin and the outer skin. There is a space, the foamed rubber layer fills the space, and the foamed rubber layer can fill the space after being heated and expanded. The invention can solve the problem that the structure stability of the sandwich structure is adversely affected due to debonding of the skin and the core in the existing sandwich structure.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a layered structure and a preparation method thereof. Background technique [0002] Sandwich structural material, also known as sandwich structural material, is a composite sandwich structure. The overall stress principle of sandwich structure materials is similar to that of I-beams. The panel of the sandwich structure material bears the in-plane normal stress and the in-plane shear stress caused by the bending moment, and the core mainly bears the transverse shear stress transmitted from the panel. effect. The composite sandwich structure has excellent specific stiffness and specific strength, that is, under the same stiffness and strength, the weight is lower. In addition, the composite sandwich structure also has the advantages of reducing noise and vibration, heat insulation, fatigue resistance, flame retardancy, sound absorption, and vibration isolation. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/12B32B3/30B32B37/06B32B37/10B32B37/12B32B3/26
CPCB32B7/12B32B3/30B32B37/06B32B37/10B32B37/12B32B3/26
Inventor 涂勤书蔡军爽尚克明刘振帅陶桂东
Owner CRRC QINGDAO SIFANG CO LTD
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