Preparation method and application of super hydrophobic surface with composite microstructure

A technology of composite microstructure and superhydrophobic surface, which is applied in the field of preparation of superhydrophobic surface, can solve problems such as difficult to achieve multi-scale micro-feature wetting performance, unfavorable hydrophobic performance of microstructure, etc., and achieve structural reliability and high reuse rate. Increase the use value and application range, and the effect of fewer processes
CN103101147AActive Publication Date: 2013-05-15SOUTH CHINA UNIV OF TECH
7 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2013-05-15

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a preparation method of a super hydrophobic surface with a composite microstructure. The preparation method comprises the following steps of: a, manufacturing a composite microstructure moldboard with more than two scale micro features according to the wetting features required by a product surface, and fixing the composite microstructure moldboard on the surface of an injection molding die cavity; b, utilizing the injection molding machine to inject a macromolecule fusant in the injection molding die cavity, carrying out pressure maintaining on the fusant through the one-way or bi-directional compression of the volume of the die cavity or the axial movement of the screw rod of the injection molding machine, and subsequently cooling and shaping; and c, isolating a macromolecule product and an injection mold through a stripper apparatus, and obtaining the super hydrophobic surface. According to the preparation method, the composite microstructure on an accurate copying moldboard, the microstructure surface and macromolecule products with various functions are obtained, and the preparation method belongs to the technical field for preparing the hydrophobic surface.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a technology for preparing a super-hydrophobic surface, in particular to a method and application for injection-molding a super-hydrophobic surface of a polymer material by using a composite microstructure template. Background technique

[0002] The wetting properties of the material surface mainly depend on the microscopic geometric structure and the chemical composition of the material. By constructing a rough structure on a hydrophobic solid surface (water contact angle greater than 90°), or modifying a low surface energy substance on a rough solid surface, the solid surface can be endowed with superhydrophobic properties (water contact angle greater than 150°). In nature, many superhydrophobic surfaces have multi-scale composite microstructures, that is, there are small-scale micro-features on the surface of large-scale micro-features, which is due to the higher mechanical stability of multi-scale composite microstructures ...

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
Login to View More