Synthesis of acrylic-modified water-reducible alkyd resin: improvement of corrosion resistance in painting formulations
Tóm tắt
In this study, we investigated the effect of organosilane monomer on the adhesion strength and corrosion protection of the water-reducible alkyd coatings. For this purpose, firstly, alkyd resin was synthesized and modified with acrylic monomers by changing organosilane monomer content in the range of 4–16 wt% in all acrylic monomer compositions. Then, the carboxyl groups on the hybrid resins were neutralized with a base and the coating recipes were formulated using these water-reducible resins. The chemical structure and composition of the synthesized polymers were confirmed using 1H-NMR and FTIR spectroscopies. Mechanical properties of coatings applied on the cold-rolled steel surfaces were investigated via crosshatch adhesion, pendulum hardness, gloss, impact, and conical mandrel bend tester. According to the results, it can be said that water-reducible acrylic-modified alkyd coatings offer a good balance of hardness and flexibility. Then, the line was scratched parallel to the coating system and the surface coating properties of the coated panels, such as the adhesion strength after being exposed to humidity and corrosion resistance, were comparatively investigated. The best results for corrosion resistance and adhesion strength were obtained with the coating which was formulated with the resin having organosilane monomer of 8 wt% in all acrylic monomer mixtures. As the organosilane monomer amount increased to 16 wt%, the coatings’ corrosion resistance and adhesion strength decreased. As a result, it was observed that organosilane modification is significantly effective in improving the adhesion strength and corrosion resistance of water-reducible alkyd coatings. However, increasing the amount of silane monomer may reverse the positive results obtained. This study also reveals significant results about the correlation between the adhesion strength and corrosion resistance of coatings by presenting visual results.
Tài liệu tham khảo
Ouyang, S, Lin, Z, Cao, L, Ding, Y, Shen, L, “Preparation of excellent-water-resistance water-borne alkyd/acrylic hybrid coatings with varied maleic anhydride content.” Prog. Org. Coat., 161 106537 (2021)
Büyükyonga, ÖN, Akgün, N, Acar, I, Güçlü, G, “Synthesis of four-component acrylic-modified water-reducible alkyd resin: investigation of dilution ratio effect on film properties and thermal behaviors.” J. Coat. Technol. Res., 14 (1) 117–128 (2017)
Akbarinezhad, E, Ebrahimi, M, Kassiriha, S, Khorasani, M, “Synthesis and evaluation of water-reducible acrylic–alkyd resins with high hydrolytic stability.” Prog. Org. Coat., 65 (2) 217–221 (2009)
Akgün, N, Büyükyonga, ÖN, Acar, I, Güçlü, G, “Synthesis of novel acrylic modified water reducible alkyd resin: investigation of acrylic copolymer ratio effect on film properties and thermal behaviors.” Polym. Eng. Sci., 56 (8) 947–954 (2016)
Jiao, C, Sun, L, Shao, Q, Song, J, Hu, Q, Naik, N, Guo, Z, “Advances in waterborne acrylic resins: synthesis principle, modification strategies, and their applications.” ACS Omega, 6 (4) 2443–2449 (2021)
Elrebii, M, Mabrouk, AB, Boufi, S, “Synthesis and properties of hybrid alkyd–acrylic dispersions and their use in VOC-free waterborne coatings.” Prog. Org. Coat., 77 (4) 757–764 (2014)
Guo, X, Ge, S, Wang, J, Zhang, X, Zhang, T, Lin, J, Zhao, CX, Wang, B, Zhu, G, Guo, Z, “Waterborne acrylic resin modified with glycidyl methacrylate (GMA): formula optimization and property analysis.” Polymer, 143 155–163 (2018)
Saravari, O, Phapant, P, Pimpan, V, “Synthesis of water-reducible acrylic–alkyd resins based on modified palm oil.” J. Appl. Polym. Sci., 96 (4) 1170–1175 (2005)
Dziczkowski, J, Dudipala, V, Soucek, MD, “Grafting sites of acrylic mixed monomers onto unsaturated fatty acids: part 2.” Prog. Org. Coat., 73 (4) 308–320 (2012)
Cumurcu, A, Yazgan, P, Erciyes, AT, “Synthesis and properties of alkoxysilane-functionalized styrenated oil based polyester.” Prog. Org. Coat., 71 (2) 147–152 (2011)
Dziczkowski, J, Soucek, MD, “A new class of acrylated alkyds.” J. Coat. Technol. Res., 7 (5) 587–602 (2010)
Dziczkowski, J, Soucek, MD, “Factors influencing the stability and film properties of acrylic/alkyd water-reducible hybrid systems using a response surface technique.” Prog. Org. Coat., 73 (4) 330–343 (2012)
Pathan, S, Ahmad, S, “Green and sustainable anticorrosive coating derived from waterborne linseed alkyd using organic-inorganic hybrid cross linker.” Prog. Org. Coat., 122 189–198 (2018)
Kamphunthong, W, Sirisinha, K, “Structure development and viscoelastic properties in silane-crosslinked ethylene–octene copolymer.” J. Appl. Polym. Sci., 109 (4) 2347–2353 (2008)
Schmidt, H, Scholze, H, Kaiser, A, “Principles of hydrolysis and condensation reaction of alkoxysilanes.” J. Non-Cryst. Solids, 63 (1–2) 1–11 (1984)
Han, C, Bian, J, Liu, H, Han, L, Wang, S, Dong, L, Chen, S, “An investigation of the effect of silane water-crosslinking on the properties of poly (L-lactide).” Polym. Int., 59 (5) 695–703 (2010)
Emik, S, İyim, TB, Özgümüş, S, “Synthesis of silicone-acrylic-modified high-ortho novolac resin with enhanced thermal resistance and surface coating properties.” J. Coat. Technol. Res., 18 (6) 1679–1690 (2021)
Shokoohi, S, Arefazar, A, Khosrokhavar, R, “Silane coupling agents in polymer-based reinforced composites: a review.” J. Reinf. Plast. Compos., 27 (5) 473–485 (2008)
Child, T, Van Ooij, W, “Application of silane technology to prevent corrosion of metals and improve paint adhesion.” Trans. IMF, 77 (2) 64–70 (1999)
Ebnesajjad, S, Ebnesajjad, C, “Surface treatment of materials for adhesive bonding.” William Andrew (2013)
Javaheriannaghash, H, Ghazavi, N, “Preparation and characterization of water-based polyurethane–acrylic hybrid nanocomposite emulsion based on a new silane-containing acrylic macromonomer.” J. Coat. Technol. Res., 9 (3) 323–336 (2012)
Ahmadi, A, Ramezanzadeh, B, Mahdavian, M, “Hybrid silane coating reinforced with silanized graphene oxide nanosheets with improved corrosion protective performance.” RSC Adv., 6 (59) 54102–54112 (2016)
Montemor, M, Ferreira, M, Trabelsi, W, Triki, E, Dhoubi, L, Zheludkevich, M, “Corrosion studies and analytical characterisation of galvanised steel substrates pre-treated with doped silane solutions.” Innovative Pre-Treatment Techniques to Prevent Corrosion of Metallic Surfaces, pp. 83–95. Woodhead Publishing (2007)
Vuk, AŠ, Fir, M, Ješe, R, Vilčnik, A, Orel, B, “Structural studies of sol–gel urea/polydimethylsiloxane barrier coatings and improvement of their corrosion inhibition by addition of various alkoxysilanes.” Prog. Org. Coat., 63 (1) 123–132 (2008)
Akram, D, Ahmad, S, Sharmin, E, Ahmad, S, “Silica reinforced organic–inorganic hybrid polyurethane nanocomposites from sustainable resource.” Macromol. Chem. Phys., 211 (4) 412–419 (2010)
Ahmad, S, Zafar, F, Sharmin, E, Garg, N, Kashif, M, “Synthesis and characterization of corrosion protective polyurethanefattyamide/silica hybrid coating material.” Prog. Org. Coat., 73 (1) 112–117 (2012)
Kiran, SK, Nace, VM, Silvestri, MA, Monk, KA, Moloney, J, Schmidt, L, Acosta, EJ, “The HLD study of surfactant partitioning for oilfield corrosion inhibitors.” J. Surfactants Deterg., 17 (6) 1193–1201 (2014)
Mohammed, IA, Shahabuddin, S, Khanam, R, Saidur, R, “Synthesis, characterization and antibacterial activity of novel poly(silyl ether)s based on palm and soy oils.” Polímeros, 28 406–412 (2018)
Jovanović, V, Ristić, I, Miletić, A, Cakić, S, Tanasić, J, Budinski-Simendić, J, “Synthesis of biodegradable polyester based on renewable resources.” Bull. Nat. Sci. Res. 9 (2) (2019)
Tasdelen-Yucedag, C, Erciyes, AT, “Modification of polycaprolactone-styrene-vinyl trimethoxysilane terpolymer with sunflower oil for coating purposes.” Prog. Org. Coat., 77 (11) 1750–1760 (2014)
Liu, C, Li, J, Lei, W, Zhou, Y, “Development of biobased unsaturated polyester resin containing highly functionalized castor oil.” Ind. Crops Prod., 52 329–337 (2014)
Qin, Y, Jia, JR, Zhao, L, Huang, ZX, Zhao, SW, Zhang, GW, Dai, BF, “Synthesis and characterization of soybean oil based unsaturated polyester resin.” Proc. Advanced Materials Research (2012)
Ang, KP, Lee, CS, Cheng, SF, Chuah, CH, “Synthesis of palm oil‐based polyester polyol for polyurethane adhesive production.” J. Appl. Polym. Sci. 131 (6) (2014).
Obidiegwu, M, Uzoma, P, Ezeh, V, Nwanonenyi, S, Usifoh, I, Moneke, U, “Structural characterization of sandbox seed oil-modified alkyd resin.” Int. Res. J. Pure Appl. Chem., 12 1–8 (2016)
Al-Zahrani, FAM, Lin, L, Abd El-Wahab, H, “Preparation and evaluation of high-performance modified alkyd resins based on 1, 3, 5-tris-(2-hydroxyethyl) cyanuric acid and study of their anticorrosive properties for surface coating applications.” e-Polymers, 22 (1) 781–792 (2022)
Zhu, Z, Zhang, C, Gong, S, “Preparation and properties of polyester modified waterborne high hydroxyl content and high solid content polyacrylate emulsion.” Polymers, 11 (4) 636 (2019)