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Polymer-matrix composite material with super-hydrophobic surface and preparation method thereof

A technology of super-hydrophobic surface and composite materials, applied in the field of super-hydrophobic composite materials and their preparation, to achieve stable super-hydrophobic properties, improve waterproof and anti-freeze performance, and prolong service life

Inactive Publication Date: 2010-09-15
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no relevant reports on the superhydrophobic surface of polymer-based composites and its preparation technology at home and abroad. Therefore, extending the super-hydrophobic surface technology to the field of polymer-based composites is of great significance for optimizing the performance of polymer-based composites. important meaning

Method used

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  • Polymer-matrix composite material with super-hydrophobic surface and preparation method thereof
  • Polymer-matrix composite material with super-hydrophobic surface and preparation method thereof
  • Polymer-matrix composite material with super-hydrophobic surface and preparation method thereof

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Embodiment 1

[0024] a kind of like figure 1 The polymer-based composite material with a superhydrophobic surface of the present invention shown, the polymer-based composite material includes a composite material body and a superhydrophobic coating coated on the composite material body, and the composite material body is a carbon fiber cloth reinforced epoxy resin matrix composite material, the thickness of the super-hydrophobic coating is 30 μm, and the micro-flower-like structure with a diameter of 10 μm to 30 μm is distributed on the super-hydrophobic coating (see figure 1); the matrix material of the superhydrophobic coating is epoxy resin, and the main components of the microflower-like structure are metal copper oxide nanopowder and stearic acid ethanol solution (or ethanol solution of perfluoro fatty acid or heptadecafluorotrimethoxyethylene Oxysilane ethanol solution) self-assembled mixture, the particle size of the copper oxide nanopowder is 20nm-100nm, and the average particle siz...

Embodiment 2

[0039] A polymer-based composite material with a superhydrophobic surface of the present invention, the polymer-based composite material includes a composite material body and a superhydrophobic coating coated on the composite material body, and the composite material body is a carbon fiber cloth reinforced epoxy resin base Composite material, the thickness of the super-hydrophobic coating is 50 μm, and the micro-flower structure with a diameter of 10 μm to 30 μm is distributed on the super-hydrophobic coating; the matrix material of the super-hydrophobic coating is epoxy resin, the main component of the micro-flower structure It is a mixture formed by self-assembly of metal copper oxide nanopowder and stearic acid ethanol solution, the particle diameter of the copper oxide nanopowder is 20nm-100nm, and the average particle diameter is about 70nm. The contact angle of this superhydrophobic coating surface and water is 155 ° ± 1.9 ° (see image 3 ), the rolling angle of water d...

Embodiment 3

[0054] A polymer-based composite material with a superhydrophobic surface of the present invention, the polymer-based composite material includes a composite material body and a superhydrophobic coating coated on the composite material body, and the composite material body is a carbon fiber cloth reinforced epoxy resin base Composite material, the thickness of the super-hydrophobic coating is 30 μm, and the super-hydrophobic coating is distributed with a micro-flower structure with a diameter of 10 μm to 30 μm; the matrix material of the super-hydrophobic coating is epoxy resin, the main component of the micro-flower structure It is a mixture formed by the self-assembly of metal copper oxide nano powder and stearic acid ethanol solution, the particle diameter of the copper oxide nano powder is 20nm-100nm, and the average particle diameter is about 50nm. The contact angle of this superhydrophobic coating surface and water is 153 ° ± 1.7 ° (see Figure 4 ), the rolling angle of ...

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Abstract

The invention belongs to the field of a super-hydrophobic composite material and a preparation method thereof and specifically discloses a polymer-matrix composite material with a super-hydrophobic surface and a preparation method thereof. The polymer-matrix composite material comprises a composite material body and a super-hydrophobic coating coated thereon, wherein, the composite material body is a carbon fiber or glass fiber reinforced composite material, and a microgranitic structure with the diameter of 10 mu m-30mu m is distributed on the super-hydrophobic coating; and the contact angle between the surface of the super-hydrophobic coating and water is 150-160 degrees, and the roll angle of water drops on the surface is below 10 degrees. The preparation method comprises the following steps: firstly preprocessing the surface of the composite material body; painting and flattening a resin system on the surface; spraying metallic oxide nano-powder on the surface of the resin system; and finally heating and curing, and then self-assembling in stearic acid ethanol solution or other similar solutions to obtain the composite material. The polymer-matrix composite material of the invention has the advantages of strong self-cleanness, strong anti-moisture absorption property, strong anti-freezing property, long service life, stable hydrophobic property and the like.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a surface-treated superhydrophobic composite material and a preparation method thereof. Background technique [0002] Polymer-based composites have attracted extensive attention because of their designability, high specific strength, and light weight. They have very important applications in wind turbine blades, large aircraft, and other related fields. However, the surface of the current commercial polymer-based composite materials is not self-cleaning, and it is easy to accumulate dust after long-term use outdoors, which affects the appearance. There are often obvious traces of pollution on the surface. In addition, many epoxy resin-based composite materials have certain hygroscopic properties, which often lead to a decrease in mechanical strength and affect performance after moisture absorption. Therefore, the development of polymer-based composites wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B32B27/38B29C70/02B05D5/00B05D7/24C01G3/02B82B3/00
Inventor 朱宝军肖加余袁志庆张鉴炜曾竟成邢素丽何玲黄俊刘勇张章
Owner NAT UNIV OF DEFENSE TECH
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