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Epoxy foamed sandwich composite material and preparation method thereof

A technology of epoxy foam and composite materials, which is applied in the field of foam sandwich composite materials and polymer sandwich materials, and can solve the problems that do not involve sound insulation, heat insulation, damping, vibration reduction, and noise reduction epoxy foam sandwich composite materials. and other problems to achieve the effect of reducing quality

Inactive Publication Date: 2015-04-22
QINGDAO ADVANCED MARINE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] None of the above patents involves the preparation method of epoxy foam sandwich composite material with integrated functions of sound insulation, heat insulation, damping, vibration reduction and noise reduction

Method used

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  • Epoxy foamed sandwich composite material and preparation method thereof
  • Epoxy foamed sandwich composite material and preparation method thereof
  • Epoxy foamed sandwich composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0066] Examples 1-3 The composition and performance of the epoxy foam core material and the structure of the foam sandwich composite material are listed in Table 1 and Table 2.

[0067] Table 1 Composition and properties of epoxy foam core material

[0068]

[0069]

[0070]

[0071] Example 1 foam sandwich composite material in the table, with azodicarbonamide (AC, main foaming agent) and dehydrated alcohol (auxiliary foaming) as foaming agent, polyoxyethylene sorbitan monooleate (Tween 80) surfactant, hollow glass microsphere mass fraction 22, foam density 0.46g / cm 3 The thickness of the foam core board is 32mm. The core structure is a layer of foam middle layer, the upper and lower layers are damping layers, forming a sandwich structure, and the surface layer is glass fiber mesh reinforced epoxy glass steel with a thickness of 3-5mm. Interlayer bond strength ≥ 5Mpa.

[0072] Example 2 foam sandwich composite material in the table, with azobisisobutylcyanide (AZDN...

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Abstract

The invention discloses an epoxy foamed sandwich composite material and a preparation method thereof. The sandwich composite material consists of a core material, a surface material and a damping layer, wherein the core material is an epoxy foamed plastic reinforced by a hollow glass bead, the surface material is epoxy glass fiber reinforced by glass fiber gridding cloth, and the damping layer is polyether type polyurethane elastomer. According to the composite material disclosed by the invention, polyurethane elastomer which is excellent in binding performance and damping performance is taken as a bonding and damping layer between the foamed core material and the core material, and between the core material and the surface material; the prepared foamed sandwich structure composite material has the integrated function of light weight, high strength, sound insulation, heat insulation, damping, vibration attenuation and noise reduction, so that the comprehensive performance of the material is improved.

Description

technical field [0001] The invention relates to a foam sandwich composite material, belonging to the category of polymer sandwich materials, in particular to an integrated foam sandwich composite material with functions of sound insulation, heat insulation, damping, vibration reduction and noise reduction and a manufacturing method thereof. Background technique [0002] Foam sandwich materials have been used as composite materials in the 1940s. In 1970, epoxy foam sandwich panels were successfully developed. It has light weight, high specific strength, and good impact resistance and energy absorption characteristics. It is used in the building materials industry . The foam sandwich composite material can reduce noise and vibration, and has the properties of sound insulation, heat insulation, vibration reduction, noise reduction, and fatigue resistance. The mechanism of action of the foam sandwich material is to transmit shear forces from the skin layer to the inner layer, s...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/38B32B27/04B32B27/18B32B5/18B32B37/02C08L63/00C08L63/02C08K7/28C08K7/14C09D175/08
CPCB32B27/06B32B5/18B32B27/18B32B27/38B32B27/40B32B37/02B32B2260/046B32B2262/101C08K7/14C08K7/28C08L63/00C09D175/08
Inventor 刘连河张树华权崇仁王奎民魏浩张茂伟王德威
Owner QINGDAO ADVANCED MARINE MATERIAL TECH
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