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High-strength and lightweight aramid paper honeycomb sandwich composite structure

A composite structure, aramid paper technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problem of increasing the weight of the structure, to improve the external bearing capacity, mechanical Good performance and high bonding strength

Active Publication Date: 2018-02-09
沈阳蜂巢轨道交通配套设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing sandwich structure is prone to damage such as degumming and delamination during the process of manufacture and use. Therefore, the so-called "core glue" is generally used for bonding the panel and the aramid paper honeycomb core to improve the peeling effect. Strength, but the introduction of adhesives can improve the peel strength, but it will increase the weight of the structure, especially for the sandwich structure composed of honeycomb and thin skin with low density, the increased weight is relatively large

Method used

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  • High-strength and lightweight aramid paper honeycomb sandwich composite structure

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Effect test

Embodiment 1

[0031]In the high-strength and light-weight aramid paper honeycomb sandwich composite structure of this embodiment, the composite board includes a lower skin 3, a lower hot-melt adhesive film 4, and an aramid paper honeycomb core stacked sequentially from bottom to top. 2. The upper hot-melt adhesive film 5 and the upper skin 1 are composited. The upper skin 1 and the lower skin 3 are glass cloth prepregs formed by impregnating glass cloth with a resin composition. The aramid paper honeycomb The cell section of the core is a regular hexagon, the radius of the circumscribed circle of the regular hexagon is 50 mm, the cell side length is 3 mm, and the aperture ratio is 1; the paper thickness of the aramid paper honeycomb core is 0.03 mm, and the density is 30 kg / m 3 ; The resin composition includes by weight: 10 parts of diphenylmethane bismaleimide, 3 parts of o-diallyl bisphenol A, 5 parts of diallyl bisphenol A, 5 parts of polyethersulfone, polyether 6 parts of ketone, 10 par...

Embodiment 2

[0040] In the high-strength and light-weight aramid paper honeycomb sandwich composite structure of this embodiment, the composite board includes a lower skin 3, a lower hot-melt adhesive film 4, and an aramid paper honeycomb core stacked sequentially from bottom to top. 2. The upper hot-melt adhesive film 5 and the upper skin 1 are composited. The upper skin 1 and the lower skin 3 are glass cloth prepregs formed by impregnating glass cloth with a resin composition. The aramid paper honeycomb The cell section of the core is a regular hexagon, the radius of the circumscribed circle of the regular hexagon is 100mm, the cell side length is 6mm, and the aperture ratio is 1; the paper thickness of the aramid paper honeycomb core is 0.06mm, and the density is 35kg / m 3 ; The resin composition comprises by weight: 20 parts of diphenylmethane bismaleimide, 8 parts of o-diallyl bisphenol A, 15 parts of diallyl bisphenol A, 10 parts of polyethersulfone, polyether 12 parts of ketone, 20 p...

Embodiment 3

[0049] In the high-strength and light-weight aramid paper honeycomb sandwich composite structure of this embodiment, the composite board includes a lower skin 3, a lower hot-melt adhesive film 4, and an aramid paper honeycomb core stacked sequentially from bottom to top. 2. The upper hot-melt adhesive film 5 and the upper skin 1 are composited. The upper skin 1 and the lower skin 3 are glass cloth prepregs formed by impregnating glass cloth with a resin composition. The aramid paper honeycomb The cell section of the core is a regular hexagon, the radius of the circumscribed circle of the regular hexagon is 50mm, the cell side length is 6mm, and the aperture ratio is 1; the paper thickness of the aramid paper honeycomb core is 0.03mm, and the density is 35kg / m 3 ; The resin composition comprises by weight: 10 parts of diphenylmethane bismaleimide phenol, 8 parts of o-diallyl bisphenol A, 5 parts of diallyl bisphenol A, 10 parts of polyethersulfone, polyether 6 parts of ketone a...

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Abstract

The invention discloses an aramid paper honeycomb sandwich composite structure with high strength and light weight. The composite plate comprises lower skin, a lower hot melt adhesive film, an aramid paper honeycomb core, an upper hot melt adhesive film and upper skin which are overlapped and composited from bottom to top sequentially, wherein the upper skin and the lower skin are glass cloth prepregs formed by impregnating glass cloth with resin composition. The volume weight of the honeycomb core is reduced through structural adjustment of the honeycomb core, the critical load capacity of the honeycomb core structure is improved, the external bearing capacity of the whole composite plate is improved, the bonding strength between layers of the structure is high, the peel strength is high, high anti-puncture performance and high buffer performance are integrated, the probability of damage such as degumming, delamination and the like is low, and the composite plate is light in weight, good in mechanical property, soundproof and high in thermal insulation performance.

Description

technical field [0001] The invention relates to a paper honeycomb panel, in particular to a high-strength and lightweight aramid paper honeycomb sandwich composite structure. Background technique [0002] Honeycomb sandwich structure technology is a multidisciplinary interdisciplinary science that runs through the preparation of raw materials, structural design to molding processes and so on. However, due to its light weight, high strength, good bending stiffness, and smooth or flat surface, it has good aerodynamic performance. The existing sandwich structure is prone to damage such as degumming and delamination during the process of manufacture and use. Therefore, the so-called "core glue" is generally used to bond the panel and the aramid paper honeycomb core to improve the peeling effect. Strength, but the introduction of the adhesive can improve the peel strength, but it will increase the structural weight, especially for the sandwich structure with a low density honeyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/12B32B27/02B32B27/34B32B27/18B32B17/04C08L79/08C08L81/06C08L61/16C08K5/3415C08K5/13C09J163/00C09J183/04C09J177/00C09J11/04C09J11/06C09J11/08
CPCB32B3/12B32B27/18B32B27/34B32B2260/021B32B2260/046B32B2262/0269B32B2262/101B32B2307/102B32B2307/304B32B2307/56C08K2201/014C08L61/16C08L79/08C08L2205/035C09J11/04C09J11/06C09J11/08C09J163/00C09J2301/304C08L81/06C08K5/3415C08K5/13C08L83/04C08L77/00C08K13/06C08K9/06C08K7/12C08K3/346C08K3/38
Inventor 尹渝杨仕春尹书勤
Owner 沈阳蜂巢轨道交通配套设备有限公司
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