Preparation method of fleecy fabric anti-layering foam sandwich composite material board

A composite material and anti-delamination technology, applied in the field of composite materials, can solve the problems of poor product quality consistency, low degree of standardization, and more manual participation, and achieve the effects of designable mechanical properties, simple molding process, and stable structure

Inactive Publication Date: 2017-08-18
GUANGDONG YATAI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These technologies either have high costs and serious loss, or too much manual involvement, low standardization, and poor product quality consistency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of fleecy fabric anti-layering foam sandwich composite material board
  • Preparation method of fleecy fabric anti-layering foam sandwich composite material board
  • Preparation method of fleecy fabric anti-layering foam sandwich composite material board

Examples

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Embodiment 1

[0030] A method for preparing a fleece fabric anti-delamination foam sandwich composite material plate, comprising the following steps:

[0031] Step 1: Refer to attached figure 1 and attached figure 2 , make two molds with complementary curved surfaces, respectively as the upper mold 2 and the lower mold 1, wherein the upper mold 2 is a convex mold, and two through holes are opened on the upper mold 2, one of which is used as a foaming glue inlet 3. The other through hole is used as a foaming glue outlet 4. The diameter of the two through holes is 5mm, and the inner and outer surface outlets of the through holes are chamfered or rounded.

[0032] Step 2: Apply release agent on the surface of the concave mold, then apply gel coat, and spread the carbon fiber single-sided fleece fabric on the mold—the smooth surface of the carbon fiber fabric is laid on the surface of the concave mold, and the pile surface is open to the concave mold On one side, use a brush to pick up the r...

Embodiment 2

[0041] A method for preparing a fleece fabric anti-delamination foam sandwich composite material plate, comprising the following steps:

[0042] Step 1: Make two molds with complementary profiles, which are respectively used as upper mold 2 and lower mold 1, wherein the upper mold 2 is a concave mold, and two through holes are opened on the upper mold 2, one of which is used as a foaming inlet The glue port 3, the other through hole is used as the foaming glue outlet 4, the diameter of the two through holes is 20mm, and the inner and outer surface outlets of the through holes are chamfered or rounded;

[0043] Step 2: Lay a release cloth on the surface of the concave mold, then apply gel coat, and spread the glass fiber single-sided fleece fabric on the mold—the smooth surface of the glass fiber fleece fabric is laid on the surface of the concave mold, and the pile surface Facing the open side of the concave mold, use a brush to pick up the resin mixture containing the curing ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of a fleecy fabric anti-layering foam sandwich composite material board. The method uses a special fiber fabric for gluing, mold pasting and pavement to form a skin material; a foaming material is injected in a glue injecting cavity formed by combining convex and concave molds; and through coating of structural glue on the edges of the molds, sealing of a glue injecting port and a glue outlet, mold closing, heating and like, a foam and fleece embedded anti-layering sandwich composite material board is formed. The forming process is simple; the standard production is liable; the product quality consistence is excellent; through molded surface control of the molds, different special-shaped curved surface structure sandwich composite boards can be prepared, and can be directly applied to structural support parts, insulation, thermal insulation, sound absorbing and insulating boards and the like; the structure is stable; the deformation is low; and the mechanical performance can be designed.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a method for preparing a fleece fabric anti-delamination foam sandwich composite material board. Background technique [0002] The problem of easy delamination of the skin material and the foam core material of the foam sandwich composite board is an important indicator affecting the comprehensive performance of the material. Compared with metal materials (such as aluminum alloy), when composite materials are subjected to unexpected impacts (such as flying birds, flying stones, hail, tools falling during assembly, etc.) Damage, a serious threat to the safety of material use. Therefore, how to improve the impact damage resistance of composite materials is one of the key technologies for the application of composite materials in main load-bearing structures such as wings and fuselages. [0003] There are some technical measures at home and abroad, such as fabric and foam suture...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54
CPCB29C70/345B29C70/542
Inventor 朱增余杨朝坤罗国伟白文风
Owner GUANGDONG YATAI NEW MATERIAL TECH CO LTD
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