Preparation of Fluoroalkyl-Acrylate-Modified Polysiloxane Nanocomposite and Its Surface Properties as a Superhydrophobic Coating Material

Abstract

Based on the as-synthesized modified polysiloxane containing pendant long-chain fluoroalkyl and silanoxy (PFAS) in our previous work, an in situ condensation reaction with silica sol was carried out to prepare a fluoroacrylate-modified polysiloxane nanocomposite. The polysiloxane nanocomposite was then applied as a fabric finish to construct a superhydrophobic coating. The structural and thermal properties of the polymer, surface morphology, surface composition and hydrophobicity of the fabric coatings, polymer fine microstructure, and performance properties of the treated fabrics were researched using infrared spectrometry, thermogravimetric analysis, scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectrometry, and measurement of the contact angle, whiteness, and softness. The characterization results showed that the product had good thermal stability. The static contact angle and rolling contact angle on the finished fabric surface were 163.5° and 7°, respectively. The whiteness and softness were basically similar to those of untreated fabrics. Moreover, due to the stable covalent bond between the silica particles and the polymers, the static contact angle remained 152.3° after 15 cycles of washing, which indicates that it has good water resistance.

Influence of3Dprinting process parameters on the tribological properties of acrylic resin

“…A non-contact threedimensional optical profiler (CountourGT-K, Bruker Instrument, USA) was employed to observe the wear scar morphology and depth, and calculate the wear volume. Wear rate K (mm 3 N À1 m À1 ) was calculated by the formula (6).…”

“…[3][4][5] Moreover, its ease of film formation, abrasion resistance, corrosion resistance, and superhydrophobicity make it highly promising for industrial protection and anti-friction coatings. [6][7][8] However, the polymerization process is limited by the viscosity of the solution and the process conditions of preparation, thus searching for one of the rapid forming technologies has become one of the frontier research topics. 9 3D printing is a rapid prototyping technology, also known as "Additive Manufacturing", which uses digital model files as the basis for constructing entities by printing them layer by layer.…”

“…Many studies have found that acrylic resin is also used in the medical field due to its good water absorption and adhesive strength 3–5 . Moreover, its ease of film formation, abrasion resistance, corrosion resistance, and superhydrophobicity make it highly promising for industrial protection and anti‐friction coatings 6–8 . However, the polymerization process is limited by the viscosity of the solution and the process conditions of preparation, thus searching for one of the rapid forming technologies has become one of the frontier research topics 9 …”

Study on preparation and performance of multifunctional linen fabric finishing agent

“…Fabric finishing is an important means to improve the quality of the fabric, which can perfect the wearability and endow versatility. [3][4][5] Nowadays, because polyacrylate and its copolymer emulsions are inexpensive and have excellent light retention, color retention, and weather resistance, multifunctional fabric finishing agents are obtained by adding organic fluorine, 6 silicon, 7 and inorganic nanoparticles, [8][9][10] with polyacrylate [11][12][13] as the main component.…”