Composite sandwich panel, composite wall panel and chassis

Abstract

The invention provides a composite sandwich panel. The composite sandwich panel comprises a plurality of surface layers and honeycomb core materials, wherein at least one surface layer is a fiber adhesive composite layer, the fiber adhesive composite layers are directly attached to the honeycomb core materials or the other surface layer, and fibers in the fiber adhesive composite layers are uniformly distributed. According to the composite sandwich panel, by designing the fiber adhesive composite layers to replace a traditional multi-layer structure of adhesive layers and fiber layers, the distribution of the fibers and an adhesive is reasonably controlled, so that the dosage of the adhesive is uniform, the tension and compression resistance enhancing effect of the fibers is retained, thehoneycomb core materials are directly attached, the bonding strength is good, forming is convenient and fast, and the automatic batch operation is suitable. The invention further provides a compositewall panel and a chassis made of the fiber adhesive composite layers.

Description

technical field [0001] The invention relates to the technical field of kitchen and bathroom decoration materials, in particular to a composite interlayer board, a composite wall board and a chassis. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] Composite sandwich panels are used in a wide variety of applications requiring high strength and light weight. For greater strength, these panels may include a lightweight honeycomb core due to its high strength-to-weight ratio and resistance to fatigue damage, and fiber layers for reinforcement. One process for applying the fiber layer to the honeycomb involves fiber layer procurement, coating of uncured adhesive steps, because the core material of the honeycomb panel (corrugated board or corrugated board) has less contact are...

AI Technical Summary

Problems solved by technology

The uncured adhesive has a certain fluidity and viscosity, and uniform coating is an ideal state, which is extremely difficult to control. If some areas are too thin or too thick, it will affect the performance consistency of the later composite sandwich panels, such as less glue The area may be the stress concentration location during use, and these points will first cause the combination of the honeycomb and the glue to fail, so that the strength of the composite board is severely damaged and cannot be used

In the existing technology, in order to ensure the bonding strength, the glue layer will be deep into the honeycomb cells. On the one hand, the amount of glue is increased, the cost is high, and the weight will become larger; on the other hand, the penetration of the glue will affect the performance of the honeycomb layer.

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