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Journal of Coatings Technology and Research

, Volume 15, Issue 4, pp 809–817 | Cite as

A fluorine–silicone acrylic resin modified with UV-absorbing monomers and a free radical scavenger

  • Huibin Lei
  • Deliang HeEmail author
  • Jun Hu
  • Ping Li
  • Haihong Huang
Article
  • 303 Downloads

Abstract

A novel UV-absorbing and free-radical-catching fluorine–silicone acrylic resin with 2-(4-benzoyl-3-hydroxyphenoxy) ethyl acrylate (BHEA), 2,2,6,6-tetramethyl-4-piperidyl methacrylate (TMPM), dodecafluoroheptyl methacrylate (DFMA) and 3-methacryloxypropyltrimethoxysilane (MPS) as functional monomers was successfully synthesized by solution copolymerization. Based on various investigations, our characterization results for the resin and its coating indicated that the resin exhibits high UV-absorbing and free-radical-catching performances, and the hydrophobicity of the varnish coating was promoted by the actions of fluorine and silicone. In addition, the weatherability improved because of the enduring triple protection of the UV absorbent (BHEA), free-radical-catching agent (TMPM), fluorine (DFMA) and silicone (MPS). After a 1000-h aging test, the color difference (∆E) and rate of loss of gloss (∆G) of varnish coatings were 2.96% and 62%, respectively, and the impact strength and flexibility of color paint coatings were 420 N cm and 2 mm, respectively. Moreover, the chemically bonded free-radical-catching agent (TMPM) showed a more enduring performance for producing nitroxides than the simple blend.

Keywords

Acrylic resin Fluorine and silicone UV-absorbing Free-radical-catching Weatherability Hydrophobicity 

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Copyright information

© American Coatings Association 2018

Authors and Affiliations

  • Huibin Lei
    • 1
  • Deliang He
    • 1
    Email author
  • Jun Hu
    • 1
  • Ping Li
    • 1
  • Haihong Huang
    • 1
  1. 1.College of Chemistry and Chemical EngineeringHunan UniversityChangshaChina

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