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Sandwich structure sandwich plate based on glass fiber reinforced plastic reclaimed materials and preparation method thereof

A glass fiber reinforced plastic, sandwich technology, applied in glass/slag layered products, chemical instruments and methods, layered products, etc., can solve the problems of easy water absorption, limited application fields, poor mechanical properties, etc. Scientific and reasonable effect with low equipment cost

Active Publication Date: 2021-04-02
THE UNIV OF NOTTINGHAM NINGBO CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the difficulty in controlling the open-cell structure defects of chemical foam molding, traditional open-cell foam materials have defects such as poor mechanical properties and easy water absorption, which limits the application of traditional chemical foam composite materials

Method used

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  • Sandwich structure sandwich plate based on glass fiber reinforced plastic reclaimed materials and preparation method thereof

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preparation example Construction

[0042]Participatefigure 1 As shown, the present invention also discloses a method of preparing a sandwich structure based on a glass steel recovery material, including:

[0043]S1, the mass fraction is 75 to 85 parts of the first resin, 12 to 15 of the hollow glass microspheres, 1 to 9 parts of the glass steel crushed material, and 1 to 3 parts of the first solidifying agent mixed to prepare the core material;

[0044]S2, laying fiber reinforcing material layer on both sides of the core material;

[0045]S3, a mass fraction is 97 to 99 parts of the second resin, and 1 to 3 parts of the second solidifying agent, and the surface layer panel is formed on the surface of the core material through the vacuum introduction method.

[0046]Preferably, the step S1 is specifically:

[0047]After cutting the FRP recovery, it is sieved to form a glass steel crushing material;

[0048]The mass fraction of 1 to 9 parts of the glass steel crushed material was added to a first resin having a mass fraction of 75 to 85...

Embodiment 1

[0063]In this embodiment, the sandwich structural clamping plate includes a core material and a surface layer panel located on both sides of the core material, and the surface layer panel and the core material are secured by several reinforcing fiber material layers.

[0064]Among them, the core material includes:

[0065]81.13 parts of the first resin specifically unsaturated polyester (UP resin);

[0066]14.37 parts of hollow glass microspheres;

[0067]2.87 parts of FRP crushed material, the glass steel straw is cutted by a glass steel recovery, and the particle diameter is less than or equal to 6.0 mm;

[0068]1.63 parts of the first solidulator, specifically peckellmethophenone (MEKP).

[0069]Among them, the material of the reinforcing fibrous material layer is a short-cut felt, specifically a short-cut alkali glass fiber felt, and a layer of reinforcing fiber material is provided on each side of the core material.

[0070]Among them, the top-level panel includes:

[0071]98 second resins, specific u...

Embodiment 2

[0089]In this embodiment, the sandwich structural clamping plate includes a core material and a surface layer panel located on both sides of the core material, and the surface layer panel and the core material are secured by several reinforcing fiber material layers.

[0090]Among them, the core material includes:

[0091]76.72 parts of the first resin specifically unsaturated polyester (UP resin);

[0092]13.59 cases of hollow glass microspheres;

[0093]8.16 parts of FRP crushed material, the glass steel straw was cut by a glass steel recovery, and the particle diameter was less than or equal to 6.0 mm;

[0094]1.53 parts of the first curing agent, specifically peptomide (MEKP).

[0095]Among them, the material of the reinforcing fibrous material layer is a short-cut felt, specifically a short-cut alkali glass fiber felt, and a layer of reinforcing fiber material is provided on each side of the core material.

[0096]Among them, the top-level panel includes:

[0097]98 second resins, specific unsaturated...

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Abstract

The invention discloses a sandwich structure sandwich plate based on glass fiber reinforced plastic recycled materials and a preparation method thereof. The sandwich structure sandwich plate comprisesa core material and surface layer panels located on the surfaces of the two sides of the core material, and the surface layer panels and the core material are bonded and fixed through a plurality ofreinforced fiber material layers. The core material comprises the following components in parts by mass: 75-85 parts of first resin, 12-15 parts of hollow glass microspheres, 1-9 parts of glass fiberreinforced plastic crushed materials and 1-3 parts of a first curing agent, and the glass fiber reinforced plastic crushed materials are crushed materials prepared by cutting and sieving glass fiber reinforced plastic recycled materials. The surface layer panels comprise the following components in parts by mass: 97-99 parts of second resin and 1-3 parts of a second curing agent. The foam core material prepared by the invention has the advantages of high mechanical property, low water absorption rate, easiness in forming, low equipment cost, low energy consumption and high stability, so that the glass fiber reinforced plastic waste is turned into wealth, and the foam core material is more energy-saving and environment-friendly.

Description

Technical field[0001]The present invention relates to the technical field of composite materials, and more particularly to a sandwich structural sandwich plate based on FRP recovery material and a preparation method thereof.Background technique[0002]Recently, FRP has been rapidly developed in my country. It is widely used in the field. With the continuous development of polymer base glass fiber composite industry, the elimination of FRP waste and production process increases sharply. The Issue of FRP solid waste and derivative pollution have become a bottleneck that restricts the continued development of the FRP industry.[0003]The recovery method of thermosetting FRP is mainly based on mechanical recovery of energy consumption, but the economic value of recovery materials is low. The traditional treatment method is mainly burn pyrolysis or landfill, but the derived environmental problem and has a waste of resources. After mechanical crushing, the composite material for preparation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/12B32B27/18B32B27/26B32B27/36B32B7/10B32B17/02B32B9/00B32B9/02B32B17/10B32B9/04B32B33/00B29D7/01B29C70/44
CPCB32B27/12B32B27/18B32B27/26B32B27/36B32B7/10B32B5/02B32B17/10B32B9/045B32B33/00B29D7/01B29C70/443B32B2250/40B32B2307/50B32B2307/728B32B2262/106B32B2262/06B32B2262/101
Inventor 刘晓玲成帅
Owner THE UNIV OF NOTTINGHAM NINGBO CHINA