Synthesis and properties of perfluorinated alkyl silicone oil modified epoxy resin

Abstract

Perfluorinated alkyl silicone oil (PFASO) was successfully synthesized from N-ethyl-N-hydroxylethyl perfluorinated octane sulfonamide, succinic anhydride and amino silicone oil by esterification and amide reaction at moderate temperature in the presence of different catalysts. The chemical structure of the synthesized samples was characterized by Fourier transform infrared spectroscopy (FT-IR), the relative molecular mass(MM) and molecular mass distribution(MMD) of PFASO were tested by gel filtration chromatography(GFC). A commercial epoxy resin (DGEBA) was modified with PFASO, with the content of PFASO 1–5 phr. Thermo-gravimetric analysis (TGA), impact tests, scanning electron microscope (SEM) and water contact angle test were applied to provide accurate results on the thermal stability, toughness and hydrophobicity of PFASO/epoxy complex. The experimental results reveal that epoxy resins can be successfully modified by adding a small amount of as-synthesized modifiers via simple direct mixing, and verify that the as-synthesized modifier can improve the toughness and hydrophobicity of epoxy resin without sacrificing its thermal properties.

Keywords

perfluorinated alkyl silicone oil / epoxy resin / modification

References

[1] Ha Q P, Maurice J Epoxy Resins [M], 2005 2-7.

[2] Jones R G, Ando W, Kluwer J C Silicon-Containing Polymers: the Science and Technology of Their Synthesis and Applications [M], 2000 142-175.

[3] Kishita H, Koike N, Yamaguchi K, . et al. Fluorine-containing Organopolysiloxane, a Surface Treatment Composition Comprising the Same and an Article Treated with the Composition[P], 2009

[4] Ludemanne S, Niederstadt R, Riedmann J Compostion Comprising Fluorine-containing Polymer and Siloxane [P], 2009

[5] Rajaraman SK, Leieune A, Borovik A, . et al. Fluorine-free trisiloxane Surfactant Compositions for Use in Coating and Printing Ink Compositions [P], 2011

[6] Yamamoto I, Minami S, Masutani T, . Fluorosilicones and Fluorineand Silicon-containing Surface Treatment Agent [P], 2011

[7] Lee JR, Jin FL, Park SJ, . Study of New Fluorine-containing Epoxy Resin for Low Dielectric Constant[J]. Surface and Coating Technology, 2004 650-654.

[8] Liu W, Wang Z, Chen Z, . Synthesis and Properties of Two Novel Silicon-containing Cycloaliphatic Epoxy Resins for Electronic Packaging Application [J]. Polymers for Advanced Technologies, 2012 367-374.

[9] Bajpai P, Bajpai M Development of a High Performance Hybrid Epoxy Silicone Resin for Coatings[J]. Pigment & Resin Technology, 2010 96-100.

[10] Brostowa W, Chonkaew W, Menard K P, . Modification of an Epoxy Resin with a Fluoroepoxy Oligomer for Improved Mechanical and Tribological Properties[J]. Materials Science and Engineering A, 2009 241-251.