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Novel fiber reinforced cellular board and preparation method thereof

A fiber-reinforced, honeycomb panel technology, applied in chemical instruments and methods, lamination devices, lamination and other directions, can solve the problems of complex honeycomb core forming and manufacturing process, low efficiency honeycomb panels, and many product defects, and achieve difficult products. Defects, simple mold making, simple and easy forming process

Inactive Publication Date: 2010-08-11
王韬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are also a small number of honeycomb panels whose honeycomb core and panels are fiber reinforced materials, the forming and manufacturing process of the honeycomb core is very complicated, the cost is high, the efficiency is low, and the honeycomb panel produced has many defects.

Method used

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  • Novel fiber reinforced cellular board and preparation method thereof
  • Novel fiber reinforced cellular board and preparation method thereof
  • Novel fiber reinforced cellular board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] New fiber reinforced honeycomb panels (such as image 3 ) is formed by combining and affixing the panel 1 and the honeycomb core 2 with a pyramidal structure.

[0019] The new fiber-reinforced honeycomb panel consists of an upper panel, a lower panel and a pyramid-shaped honeycomb core. The pyramid-shaped honeycomb core is made of 10mm to 30mm high-strength scattered chopped fibers pre-impregnated with an epoxy resin matrix to form a premix, or chopped fiber cotton The / felt is molded by injecting epoxy resin colloid. The honeycomb core is composed of a series of concave and convex staggered small pyramid shapes. The oblique facade 3 of the small pyramid body is the supporting rib, and the pyramid tip is A small plane 4, such that the oblique ribs and the small plane constitute an interdependent integral concave-convex pyramid-shaped structure. The upper pyramid table of the honeycomb core is fixedly connected to the lower plane of the upper panel, and the lower pyrami...

specific Embodiment approach 2

[0021] This implementation method and steps are as follows:

[0022] (1) Step 1: The mold for making the fiber-reinforced pyramidal honeycomb core is composed of upper and lower templates. Small pyramid concave-convex platforms are processed on the template, and its size is made according to the requirements of the honeycomb sandwich panel to be processed. The height of the concave-convex platforms is the same. Neatly arranged, after the upper and lower templates are molded, the concave and convex tables are arranged in a staggered manner with equal gaps. The size of the template is determined according to the required workpiece and the hot press, and the release agent is applied.

[0023] (2) Step 2:

[0024] 1. The method of injection molding:

[0025] Place the 2mm thick random glass chopped fiber cotton / felt reinforcement between the upper template 5 and the lower template 6, close the mold and clamp the mold, inject epoxy resin through the injection hole 7 under the pres...

specific Embodiment approach 3

[0030] The high-performance fiber-reinforced material used in this embodiment may also be glass fiber, carbon fiber, aramid fiber and the like. The matrix can be thermosetting such as unsaturated polyester resin, epoxy resin, vinyl resin or thermoplastic resin such as nylon and polycarbonate.

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Abstract

The invention provides a novel fiber reinforced cellular board and a preparation method thereof. The novel fiber reinforced cellular board consists of panels on the two sides and a cellular core of a pyramid-shaped structure. The cellular core of the pyramid-shaped structure is prepared by the following steps: injecting high-strength dispersed short-cut fiber cotton / felt into an epoxy resin substrate; or presoaking the epoxy resin substrate by the high-strength dispersed short-cut fiber of 10 mm to 30 mm to form a pre-mixed molding material; and heating, pressurizing and molding the pre-mixed molding material. The prepared cellular core consists of a series of concave-convex staggered pyramid-shaped platform bodies which form a stable whole body together under the action of the two panels on the two sides, so the novel fiber reinforced cellular board has various high mechanical properties. The novel fiber reinforced cellular board has very simple molding process and low production cost, and can realize continuous high-efficiency production.

Description

technical field [0001] The invention relates to a composite material, in particular to a fiber honeycomb composite board and a preparation method thereof. Background technique [0002] Due to its light weight, high strength, high rigidity, good designability and corrosion resistance, fiber reinforced honeycomb composite materials have widely played an important role in aviation, aerospace, ships, automobiles and other fields, and are well received by users. favorite. However, the existing fiber-reinforced honeycomb composite materials are affected by the traditional honeycomb core structure and forming difficulties, and most of them are made of dissimilar materials such as aluminum honeycomb core, plastic honeycomb core, and paper honeycomb core bonded with fiber-reinforced panels. Although there are also a small number of honeycomb panels whose honeycomb core and panels are fiber reinforced materials, the forming and manufacturing process of the honeycomb core is very comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/12B32B37/06B32B37/10B29C70/48B29C70/34
Inventor 王韬
Owner 王韬
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