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Transparent honeycomb core material, preparation method thereof and transparent honeycomb sandwich plate

A technology of honeycomb sandwich panel and honeycomb core material, which is applied in the field of materials

Pending Publication Date: 2022-08-05
GUSU LAB OF MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a transparent honeycomb core material and its preparation method and transparent honeycomb sandwich panel for the problem of how to improve the transparency of the honeycomb core material.

Method used

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  • Transparent honeycomb core material, preparation method thereof and transparent honeycomb sandwich plate
  • Transparent honeycomb core material, preparation method thereof and transparent honeycomb sandwich plate
  • Transparent honeycomb core material, preparation method thereof and transparent honeycomb sandwich plate

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preparation example Construction

[0058] A method for preparing a transparent honeycomb core material according to an embodiment of the present invention includes the following steps:

[0059] S10. According to the mass fraction, the resin, the curing agent, the accelerator and the filler are mixed uniformly and then left to stand for defoaming to obtain a thermosetting resin system.

[0060] Specifically, in the thermosetting resin system, the mass fraction of resin is 60%-98%, the mass fraction of curing agent is 0.8%-30%, the mass fraction of accelerator is 0-0.8%, and the mass fraction of filler is 0-12% %.

[0061] S20, fully infiltrating the thermosetting resin system obtained in step S10 with the glass fiber fabric to prepare a prepreg.

[0062] In one of the feasible embodiments, before fully infiltrating the thermosetting resin system with the glass fiber fabric, the following steps are further included:

[0063] The glass fiber fabric is soaked in the surface treatment solution for pretreatment, an...

Embodiment 1

[0120] (1) Preparation of thermosetting resin system: Take 1060 type commercial flame-retardant unsaturated polyester resin, cobalt isooctanoate accelerator and cyclohexanone peroxide curing agent to fully mix in a mass ratio of 100:1:1, add resin mass 14 % of methyl methacrylate monomer (MMA), stir evenly at room temperature, and let it stand for 5 minutes to naturally eliminate air bubbles, thereby obtaining a thermosetting resin system to be cured.

[0121] (2) Preparation of glass fiber cloth: gram weight 105g / m 2 The commercial E-fiberglass cloth is used directly.

[0122] (3) Preparation of glass fiber cloth-resin prepreg and transparent panel: spread the above-mentioned 5 layers of glass fiber cloth in a clean vacuum bag, pass into the above-configured resin system, and use negative pressure to make the resin and the The glass fiber cloth is fully infiltrated, and the depressurization rate is kept at 760mmHg / h, so that the air bubbles in the glass fiber-resin prepreg i...

Embodiment 2

[0126] (1) Preparation of thermosetting resin system: Take 1060 type commercial flame-retardant unsaturated polyester resin, cobalt isooctanoate accelerator and cyclohexanone peroxide curing agent to fully mix in a mass ratio of 100:1:1, add resin mass 14 % of methyl methacrylate monomer (MMA), stir evenly at room temperature, and let it stand for 5 minutes to naturally eliminate air bubbles, thereby obtaining a thermosetting resin system to be cured.

[0127] (2) Preparation of glass fiber cloth: gram weight 105g / m 2 The commercial E-glass fiber cloth was soaked in a piranha solution prepared with concentrated sulfuric acid and hydrogen peroxide in a volume ratio of 7:3 for 30 minutes, taken out and rinsed with ethanol, and transferred to a 60°C oven to dry for 12 hours to remove the residual solution. and the bundling aid on the surface of the glass fiber cloth, the surface electron microscope picture of the treated glass fiber cloth obtained in this example is as follows: ...

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Abstract

The invention relates to a transparent honeycomb core material, a preparation method thereof and a transparent honeycomb sandwich plate. The transparent honeycomb core material is made of a glass fiber fabric impregnated with a thermosetting resin system, and the thermosetting resin system comprises resin, a curing agent, an accelerant and filler; resin in the thermosetting resin system is selected from at least one of unsaturated polyester resin, polyurethane resin and epoxy resin; in the thermosetting resin system, the mass fraction of the resin is 60%-98%, the mass fraction of the curing agent is 0.8%-30%, the mass fraction of the accelerant is 0-0.8%, and the mass fraction of the filler is 0-12%. The transparent honeycomb core material is made of the glass fiber fabric impregnated with the thermosetting resin system, the thermosetting resin system can be matched with the glass fiber fabric by selecting the components and through a reasonable proportion, the light transmittance of the made transparent honeycomb core material can reach 80% or above, the transparency is high, and the transparent honeycomb core material has the advantages of being good in transparency and good in heat resistance. Wide application is facilitated.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a transparent honeycomb core material and a preparation method thereof and a transparent honeycomb sandwich panel. Background technique [0002] High-performance transparent materials such as transparent ceramics are commonly used in aerospace, military, medical, and high-energy physics applications such as transparent armor and electromagnetic windows. For these materials, there is often a trade-off between cost, mechanical properties and transparency. However, due to their brittleness, repetition costs are high in load- and impact-resistant applications, and they are difficult to form into complex shapes when machined. Alternatives that are lightweight and mechanically strong are highly desirable. Transparent advanced composites such as glass fiber reinforced glass fiber reinforced polymers (GFRP) have higher resistance to transparent ceramics and other types of transparent...

Claims

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Application Information

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IPC IPC(8): B32B3/12B32B27/04B32B17/00B32B17/02B32B17/12B32B27/36B32B27/12B32B37/10B32B38/00C08J5/24C08L67/06C08L75/04C08L63/00C08K7/14
CPCB32B3/12B32B5/02B32B5/24B32B17/00B32B17/067B32B27/36B32B27/12B32B37/10B32B38/00C08J5/244C08J2367/06C08J2375/04C08J2363/00B32B2305/024B32B2262/101B32B2260/021B32B2260/046B32B2038/0076Y02T50/40
Inventor 杨依山王永疆赖毓康
Owner GUSU LAB OF MATERIALS