Flame retardant UV-curable acrylated epoxidized soybean oil based organic–inorganic hybrid coating

• Published in: Progress in organic coatings Vol. 76; no. 6; pp. 985 - 992
• Main Authors: Baştürk, Emre, İnan, Tülay, Güngör, Attila
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2013
• Subjects: Biodegredable; Epoxidized soybean oil; Flame resistant; Hybrid coatings; Low cost; Phosphorus; Sol–gel process; UV curing; Sol–gel process; Low cost; Flame resistant; Biodegredable; Phosphorus; UV curing; Epoxidized soybean oil; Hybrid coatings
• ISSN: 0300-9440; 1873-331X
• DOI: 10.1016/j.porgcoat.2012.10.007

► Low cost, hydrophobic, flame retardant UV curable soybean oil based sol–gel coatings have promising results. ► The subject is related to the scope of the journal (Progress in organic coatings). ► This study is novel. ► “Progress in organic coatings” is reputable scientific journal. ► Acrylated epoxidized soybean oil used in UV-curable sol-gel formulations to obtain biodegredable, low cost, flame retardant and hydrophobic coatings. Organic–inorganic hybrid coating based on methacrylated/phosphorylated epoxidized soybean oil were obtained by combining photopolymerization and sol–gel process. A series of novel methacrylated and phosphorylated epoxidized soybean oil/silica coating materials were prepared from tetraethoxysilane (TEOS), and acrylated soybean oil via sol–gel technique. Acrylated epoxidized soybean oil (AESO) is obtained by reacting epoxidized soybean oil (ESO) with methacrylic acid and vinyl phosphonic acid. The characterization of AESO was performed by NMR and IR spectroscopy. In liquid form UV-curable, clear hybrid coating materials were applied on polycarbonate substrates then cured UV-light. Finally their coating performances were determined by the various tests methods hardness, gloss, cross-cut adhesion tests, stress–strain test, gel content, contact angle. Thermogravimetric analysis (TGA) showed that the incorporation of sol–gel precursor into the resin leads to an enhancement in the thermal stability and also flame retardancy properties of the coated material. The surface morphology of the hybrid coating was characterized by scanning electron microscopy (SEM).