UV‐curable sol–gel based protective hybrid coatings

Abstract

UV‐curable, novel, fluorinated polyether ether ketone urethane acrylate oligomer (FPEEKUA) has been synthesized and used as corrosion‐protector in sol–gel hybrid coatings for metallic substrates. Incorporation of FPEEKUA and sol–gel in the formulations improved coatings’ physical properties such as gel content, hardness, adhesion, gloss, flexibility, and contact angle. Due to strong interaction between acrylate and highly crosslinked structures, mechanical properties improved drastically with homogenously dispersed structures throughout the organic matrix, while water uptake values decreased and thermal stability and char yields increased. Highest contact angle values were measured up to 94° with shinny coatings. The results are important for two reasons. First, polyether ether ketone (PEEK) immiscibility problem are overcome by using reactive oligomer and benefitted from high performance properties of poly(arylene ether ketones) (PAEK)s in hybride coating applications. Second, Coatings combine the advantages of sol–gel with poly(arylene ether ketone urethane acrylate) (PAEKUA) oligomer and they can be used as barrier coatings in metal corrosion protection. Performance tests in corrosive mediums at room temperature of chlorine solution (bleach) for 24 h and also in a 10 wt% HCl solution for 92 h produced promising results for use in corrosion mitigation applications in highly corrosive downstream oil and gas industry. POLYM. ENG. SCI., 59:E146–E154, 2019. © 2018 Society of Plastics Engineers

Modification of silicon-polyurethane-based sol–gel coatings through diverse plasma technologies: investigation of impact on surface properties

“…The pencil hardness tester is a scratch hardness test that determines the resistance of coatings to scratching (Table 7). 33 The results of the test are within the usual hardness range for polyurethane coatings.…”

Manufacturing and photocrosslinking of a new bio‐based dimethacrylate resulting in hydrophobic crosslinked films

“…The gel content of the photocrosslinked films was determined by measuring the weight loss after solvent extraction with chloroform at room temperature for 24 h followed by drying under vacuum according to the standard test method ASTM D2765-84 [29]. The gel content (G %) was calculated from the mass of the dried sample after extraction (m dry ) and the mass of the sample before extraction (m 0 ) according to Equation (1).…”

“…Dimethacrylates are established monomers in photopolymerizing mixtures that have been used for the manufacturing of protecting coatings, printing plates, printing inks, three-dimensional printing systems, tissue-engineering matrixes, and dental composites [1][2][3][4][5][6].…”

“…Dimethacrylates are established monomers in photopolymerizing mixtures that have been used for the manufacturing of protecting coatings, printing plates, printing inks, three‐dimensional printing systems, tissue‐engineering matrixes, and dental composites [1–6]. According to recent demands on more environmentally friendly and energy economic processes, the development of bio‐based monomers and more energy‐efficient light emitting diodes (LEDs) as radiation sources has received increased interest nowadays [7–18].…”

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

“…Thee functional coating technology has facilitated hybrid anti-yellowing UV coatings on polystyrene substrate, aeronautical protection coatings, hydrophobic silica anti-reflective coatings, primer-less corrosion-resistant pretreatment coatings, etc. [121][122][123][124]. Figure 5 shows the different UV coating technologies and evolving opportunities which are discussed in the following section.…”