An oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structural wave-absorbing material and its preparation method

A silicon carbide fiber and resin-reinforced technology, which is applied in the field of wave-absorbing materials, can solve problems such as high density, poor mechanical properties, and complex molding processes, and achieve the effects of improving electrical conductivity, good mechanical properties, and improving mechanical strength

Active Publication Date: 2019-06-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has a wide absorption frequency band, the molding process is complicated, the density is high and the mechanical properties are poor

Method used

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  • An oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structural wave-absorbing material and its preparation method
  • An oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structural wave-absorbing material and its preparation method

Examples

Experimental program
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preparation example Construction

[0033] The preparation method of the oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structure wave-absorbing material of the present invention comprises the following process steps:

[0034] Step 1. The degumming process of silicon carbide fiber cloth.

[0035] Step 2. Preparation of oxide nanowire-silicon carbide fiber multi-scale reinforcement.

[0036] Step 3, preparation of oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structural wave-absorbing material.

[0037] Wherein, when the resin matrix used is epoxy resin or silicone resin, the molding process of the resin-based structural wave-absorbing material of the present invention is a hand lay-up molding process; when the resin matrix used is polyimide resin, polybenzoxazole resin , The molding process of the resin-based structural wave-absorbing material of the present invention is a molding process.

[0038] The invention provides an oxide na...

Embodiment 1

[0040] This embodiment is a zinc oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structure wave-absorbing material and its preparation method. The zinc oxide nanowire-silicon carbide fiber multiscale reinforcement resin-based structure wave-absorbing material uses epoxy resin as a matrix, and the zinc oxide nanowire-silicon carbide fiber multiscale reinforcement as a reinforcement. In this embodiment, the content of the zinc oxide nanowire-silicon carbide fiber multi-scale reinforcement is 40 wt%, and the content of the epoxy resin matrix is ​​60 wt%.

[0041] This example also proposes a method for preparing the zinc oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced epoxy resin-based structural wave-absorbing material, the specific process is:

[0042] Step 1. Silicon carbide fiber cloth to remove glue. Cut the silicon carbide fiber cloth into 6 pieces, and the size of each piece is 45mm*45mm. Put the cut silicon...

Embodiment 2

[0046] This embodiment is a zinc oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structure wave-absorbing material and its preparation method. The zinc oxide nanowire-silicon carbide fiber multiscale reinforcement resin-based structure wave-absorbing material uses epoxy resin as a matrix, and the zinc oxide nanowire-silicon carbide fiber multiscale reinforcement as a reinforcement. In this embodiment, the content of the zinc oxide nanowire-silicon carbide fiber multi-scale reinforcement is 50 wt%, and the content of the epoxy resin matrix is ​​50 wt%.

[0047] This example also proposes a method for preparing the zinc oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced epoxy resin-based structural wave-absorbing material, the specific process is:

[0048] Step 1. Silicon carbide fiber cloth to remove glue. Cut the silicon carbide fiber cloth into 6 pieces, and the size of each piece is 45mm*45mm. Put the cut silicon...

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Abstract

The invention relates to an oxide nanowire-silicon carbide fiber multiscale reinforcement reinforced resin-based structure wave-absorbing material and a preparation method thereof. The preparation method comprises the following steps: performing adhesive-removing treatment on silicon carbide fiber cloth and then drying; growing a zinc oxide nanowire, a titanium oxide nanowire or a cobalt oxide nanowire on the surface of the dried silicon carbide fiber cloth to obtain an oxide nanowire-silicon carbide fiber multiscale reinforcement; coating and brushing the outer surface of the oxide nanowire-silicon carbide fiber multiscale reinforcement with a resin matrix, and performing curing molding to obtain the oxide nanowire-silicon carbide fiber multiscale reinforcement reinforced resin-based structure wave-absorbing material. According to the method, the wave-absorbing material is prepared by taking high-temperature-resistant resin as a matrix and taking the oxide nanowire-silicon carbide fiber multiscale reinforcement as a reinforcement and an absorbing body; the product has high structural integrity and high impact resistance and is not liable to layering; the wave-absorbing material has high mechanical property and wave-absorbing property.

Description

technical field [0001] The invention belongs to the technical field of wave-absorbing materials, and in particular relates to an oxide nanowire-silicon carbide fiber multi-scale reinforcement reinforced resin-based structural wave-absorbing material and a preparation method thereof. Background technique [0002] Advanced resin matrix composites not only drive the progress of the entire industrial technology, but also remain the most research potential strategic structural materials in the field of materials. The reason why advanced resin-based composite materials are widely used in the aerospace field is that their application in aerospace structures can reduce the weight by 20-30%, which is an effect that other advanced technologies cannot achieve. At the same time, resin-based composite materials have high specific strength and specific stiffness, strong designability, good fatigue resistance, good corrosion resistance, good structural dimensional stability, light weight a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L77/00C08L83/04C08L79/08C08L79/04C08K7/10C08K7/08C08K3/22C08K3/34D06M11/44D06M11/46D06M11/49
CPCC08K3/22C08K3/34C08K7/08C08K7/10C08K2003/2241C08K2003/2289C08K2003/2296C08K2201/011C08L63/00C08L2201/08D06M11/44D06M11/46D06M11/49C08L77/00C08L83/04C08L79/08C08L79/04
Inventor 望红玉刘虎林王秀峰
Owner SHAANXI UNIV OF SCI & TECH
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