Comparison of copolymer emulsions of fluorine and siloxane‐containing acrylates with core–shell structure for water‐repellent cotton fabrics coatings

Abstract

This paper described the synthesis of copolymer emulsions of fluorine and siloxane-containing acrylates for waterrepellent cotton fabrics coatings. Chemical composition, morphology structure, and properties of the latex copolymers were investigated by Fourier transform infrared (FTIR), dynamic light scattering (DLS), gel permeation chromatography (GPC), and transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Effects of water-repellent functional monomers (R f ) on surface morphology, water contact angle, and water-repellent properties of the coated fabric surface were also studied. The results indicated that R f greatly influenced molecular mass distribution of the latex copolymers, the molecular aggregation states and orientation of R f on the coated fabric surface, and water-repellency of coated cotton fabrics.

Super-hydrophobic and super-oleophilic surface based on high-density polyethylene/waste ground rubber tire powder thermoplastic elastomer

“…Usually, the hydrophobicity behavior of the surface was related to the surface energy. 32 The surface energy of the flat TPE surface and the TPE surfaces molded with sandpapers was listed in Table 2, which was calculated via the Owens–Wendt and Kaelble 33,34 method while the wetting angle parameters of water and ethylene glycol were used. From Table 2, we can find that the surface energy of the TPE surface molded with W7 grade sandpaper was decreased obviously, from 33.27 mN/m for the flat TPE surface to 18.63 mN/m for the rough TPE surface, respectively.…”

Cross‐linked waterborne alkyd hybrid resin coatings modified by fluorinated acrylate‐siloxane with high waterproof and anticorrosive performance

“…To tackle those limitations of waterborne alkyd resin, researchers had tried to improve the performance of coatings by introducing different functional components, such as fluorine, acrylic, silicone, and so on . In particular, fluorine‐containing polymers and organosilicone are highly valued for their ultralow surface tension, weather‐resistant, excellent inertness to solvents, hydrocarbons, acids, alkalis, and moisture, as well as corrosion resistance due to the high bond strength of carbon‐fluorine bond, the low polarizability, and the strong electronegativity of the fluorine atom . For example, Selim et al studied hyperbranched alkyd/magnetite‐silica nanocomposite as a coating material by solution casting, which had good anticorrosive performance.…”

Fabricating durable, fluoride‐free, water repellency cotton fabrics with CPDMS

“…Generally speaking, both surface physical coating and chemical modifications incorporate hydrophobic functions on cotton fabrics while retaining their air permeability . The chemical finishing of the fabrics is especially beneficial for achieving robust water repellence, durability, and air permeability, and widely applied in treatments of cotton fabrics . The current chemical finishes mainly involve the use of fluorinated compounds, which react with cellulose to obtain durable hydrophobic performance .…”