Hydrophobicity of Polyacrylate Emulsion Film Enhanced by Introduction of Nano-SiO2 and Fluorine

This study proposes to utilize modified Nano-SiO2/fluorinated polyacrylate emulsion that was synthesized with a semi-continuous starved seed emulsion polymerization to improve the hydrophobicity, thermal stability, and UV-Vis absorption of polyacrylate emulsion film. To verify the proposed method, a series inspection had been conducted to investigate the features of the emulsion film. The morphological analysis indicated that Nano-SiO2 was surrounded by a silane molecule after modification, which can efficiently prevent silica nanoparticles from aggregating. Fourier transform infrared spectra confirmed that modified SiO2 and dodecafluoroheptyl methacrylate (DFMA) were successfully introduced to the copolymer latex. The particle size of latex increased with the introduction of modified Nano-SiO2 and DFMA. UV-Vis absorption spectra revealed that modified silicon nanoparticles can improve the ultraviolet shielding effect obviously. X-ray photoelectron spectroscopy illustrated that the film–air interface was richer in fluorine than film section and the glass side. The contact angle of modified Nano-SiO2/fluorinated polyacrylate emulsion containing 3 wt % DFMA was 112°, slightly lower than double that of polyacrylate emulsion, indicating composite emulsion films possess better hydrophobicity. These results suggest that introducing modified Nano-SiO2 and fluorine into polyacrylate emulsion can significantly enhance the thermal stability of emulsion films.

[1]  Zhengyi Chen,et al.  Fabrication and properties of polysilsesquioxane-based trilayer core–shell structure latex coatings with fluorinated polyacrylate and silica nanocomposite as the shell layer , 2018, Journal of Coatings Technology and Research.

[2]  J. Mays,et al.  Designing superhydrophobic surface based on fluoropolymer–silica nanocomposite via RAFT‐mediated polymerization‐induced self‐assembly , 2018 .

[3]  Z. Chunhua,et al.  Enhanced Hydrophilic and Antipollution Properties of PES Membrane by Anchoring SiO2/HPAN Nanomaterial , 2017 .

[4]  Tingting Xu,et al.  Synthesis and characterization of polyacrylate latex containing fluorine and silicon via semi-continuous seeded emulsion polymerization , 2017 .

[5]  B. Bruggen,et al.  New method for silica embedding on a PES membrane surface via in situ sol gel process and immobilization in a polyamide thin film composite , 2017 .

[6]  R. Mukherjee,et al.  A new class of self-healable hydrophobic materials based on ABA triblock copolymer via RAFT polymerization and Diels-Alder “click chemistry” , 2017 .

[7]  Jianhua Zhou,et al.  Fluorosilicone modified polyacrylate emulsifier-free latex: Synthesis, properties, and application in fabric finishing , 2017, Fibers and Polymers.

[8]  H. Fan,et al.  Fabrication of hydrophobic composite films by sol-gel process between POSS -containing fluorinated polyacrylate latexes and colloidal silica particles , 2017 .

[9]  Jianhua Zhou,et al.  Synthesis of cationic fluorinated polyacrylate copolymer by RAFT emulsifier-free emulsion polymerization and its application as waterborne textile finishing agent , 2017 .

[10]  N. K. Singha,et al.  Syntheses and morphologies of fluorinated diblock copolymer prepared via RAFT polymerization , 2016 .

[11]  Qian Liu,et al.  Fabrication of self-cross-linking fluorinated polyacrylate latex particles with core-shell structure and film properties , 2016 .

[12]  Liqun Zhu,et al.  Preparation and investigation of waterborne fluorinated polyacrylate/silica nanocomposite coatings , 2016 .

[13]  Anqi Liu,et al.  Synthesis of novel polymethacrylates with siloxyl bridging perfluoroalkyl side-chains for hydrophobic application on cotton fabrics , 2016 .

[14]  K. Naskar,et al.  Nanoclay stabilized Pickering miniemulsion of fluorinated copolymer with improved hydrophobicity via RAFT polymerization , 2016 .

[15]  Xiaoyu Li,et al.  Hydrophobic films of acrylic emulsion by incorporation of fluorine-based copolymer prepared through the RAFT emulsion copolymerization , 2016 .

[16]  A. Romo‐Uribe,et al.  Acrylate hybrid nanocomposite coatings based on SiO2 nanoparticles. In-situ semi-batch emulsion polymerization , 2016 .

[17]  Jianhua Zhou,et al.  Synthesis and characterization of organic fluorine and nano-SiO2 modified polyacrylate emulsifier-free latex , 2015 .

[18]  Pengfei Song,et al.  Preparation of Epoxy-acrylate Copolymer@Nano-TiO2 Pickering Emulsion and Its Antibacterial Activity , 2015 .

[19]  Chuan Liu,et al.  Effect of hybrid emulsifier (reactive coupling with anionic) on the properties of acrylic emulsion , 2015 .

[20]  Jianhua Zhou,et al.  Synthesis and Characterization of nano-SiO2 modified fluorine-containing polyacrylate emulsifier-free emulsion , 2015 .

[21]  FengGuo Liu,et al.  Morphology and properties of UV-curing epoxy acrylate coatings modified with methacryl-POSS , 2015 .

[22]  Wei Xu,et al.  Synthesis of self-crosslinking fluorinated polyacrylate soap-free latex and its waterproofing application on cotton fabrics , 2014, Fibers and Polymers.

[23]  Onur Yilmaz,et al.  A hybrid polyacrylate/OMMT nanocomposite latex: Synthesis, characterization and its application as a coating binder , 2014 .

[24]  Weiqu Liu,et al.  Synthesis and properties of a novel UV-cured fluorinated siloxane graft copolymer for improved surface, dielectric and tribological properties of epoxy acrylate coating , 2013 .

[25]  Jianhua Zhou,et al.  Fluorinated polyacrylate emulsifier-free emulsion mediated by poly(acrylic acid)-b-poly(hexafluorobutyl acrylate) trithiocarbonate via ab initio RAFT emulsion polymerization , 2013 .

[26]  Young Hee Lee,et al.  Synthesis and surface properties of self-crosslinking core–shell acrylic copolymer emulsions containing fluorine/silicone in the shell , 2013, Colloid and Polymer Science.

[27]  W. Xu,et al.  Synthesis, Film Morphology, and Performance of Cationic Fluorinated Polyacrylate Emulsion with Core-Shell Structure , 2012 .

[28]  Xia Dong,et al.  Surface self-segregation, wettability, and adsorption behavior of core-shell and pentablock fluorosilicone acrylate copolymers. , 2012, Journal of colloid and interface science.

[29]  Xingrong Zeng,et al.  Preparation and characterization of nano-SiO2/fluorinated polyacrylate composite latex via nano-SiO2/acrylate dispersion , 2012 .

[30]  Wenbo Liao,et al.  Fabrication of chemically bonded polyacrylate/silica hybrid films with high silicon contents by the sol-gel method , 2011 .

[31]  H. Miao,et al.  Cotton fabric modification for imparting high water and oil repellency using perfluoroalkyl phosphate acrylate via γ-ray-induced grafting , 2010 .

[32]  Xuejun Cui,et al.  Synthesis and characterization of core―shell SiO2-fluorinated polyacrylate nanocomposite latex particles containing fluorine in the shell , 2010 .

[33]  W. Bruckard,et al.  A review of factors that affect contact angle and implications for flotation practice. , 2009, Advances in colloid and interface science.

[34]  A. Sharma,et al.  Value addition to waterborne polyurethane resin by silicone modification for developing high performance coating on aluminum alloy , 2009 .

[35]  Jiang Cheng,et al.  Synthesis of composite particles through emulsion polymerization based on silica/fluoroacrylate-siloxane using anionic reactive and nonionic surfactants. , 2008, Journal of colloid and interface science.

[36]  Jianzhong Ma,et al.  Polyacrylate/silica nanocomposite materials prepared by sol–gel process , 2007 .

[37]  Hongyan Wang,et al.  Synthesis and characterization of core-shell LIPN-fluorine-containing polyacrylate latex , 2007 .

[38]  Yuping Li,et al.  Synthesis and characterization of nanosilica/polyacrylate composite latex , 2006 .

[39]  Chaocan Zhang,et al.  Investigation of fluorinated polyacrylate latex with core–shell structure , 2005 .

[40]  Limin Wu,et al.  Structure and properties of polyurethane/nanosilica composites , 2005 .