×

Anti-frost coating and the application method thereof

  • US 8,372,484 B2
  • Filed: 01/21/2009
  • Issued: 02/12/2013
  • Est. Priority Date: 01/31/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. An application method of an anti-frost coating, comprising:

  • dissolving a hydrophilic polymer and a hydrophobic polymer in an organic solvent to form a homogeneous solution, coating the homogeneous solution on a substrate to form a film, drying and curing the film to form the anti-frost coat with a hydrophilic and super-hydrophobic composite structure including a super-hydrophobic surface layer and a hydrophilic inner layer;

    whereinthe hydrophobic polymer is one of polyacrylate, polyolefin and fluorine containing polyacrylate or their mixture;

    or a copolymer of acrylate and fluorine containing acrylate;

    the hydrophilic polymer is sodium polyacrylate, polyacrylic acid, poly(2-hydroxypropyl methacrylate) or their mixture;

    or a copolymer of two or more of sodium acrylate, acrylic acid and 2-hydroxyethyl methacrylate;

    the organic solvent is one or more of dioxane, xylene, N,N-dimethyl formamide, N,N-dimethyl acetamide and methanol; and

    the drying and curing pressure is 10-1000 Pa, the super-hydrophobic refers to a water contact angle greater than 150°

    .

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×