Affiliation:
1. Raychem Innovation Center, RPG (P) Ltd.
Abstract
Traditional epoxy coatings used for water pipeline cathodic protection have several shortcomings, including limited availability, high cost, and carcinogenic concerns. To address these challenges, a new, food-grade epoxy coating that is affordable, meets all technical requirements, and is free of carcinogenic substances was developed.The study involved testing various kinds of reinforcing fillers, non-reinforcing pigments, red pigment, and BYK additives to formulate the epoxy-based coating. Curing experiments were then conducted by formulating the coating with a fixed ratio of curing agent and spraying the resins onto mild steel panels for testing.The results demonstrated that the new formulation has good compressive strength, adequate impact resistance, and Shore D hardness in the range of 60-70, which is expected for this type of application. The abrasion resistance of the coatings increased with increasing hardness.Overall, the new food-grade epoxy coating is a promising alternative to traditional epoxy coatings for water pipeline cathodic protection. It is affordable, meets all technical requirements, and is free of carcinogenic substances.Key words: Epoxy Resin, Coating, Food Grade, TETA
Publisher
Trans Tech Publications, Ltd.
Reference20 articles.
1. F. O. Kolawole et al., "Mitigation of Corrosion Problems in API 5L Steel Pipeline – A Review," J. Mater. Environ. Sci., vol. 9, no. 8, pp.2397-2410, 2018.
2. L.T. Popoola, A.S. Grema, G.K. Latinwo, B. Gutti, A.S. Balogun, "Intern. J. Indus. Chem.," vol. 35, no. 4, p.1, 2013.
3. J. Anthony von Fraunhofer, "Adhesion and Cohesion," Int. J. Dent., vol. 2012, Article ID 951324, 8 pages, 2012.
4. Drinking water contaminants from epoxy resin-coated pipes: A field study;Rajasärkkä;Water Research
5. A. Jones, B. Smith, "Advancements in Epoxy Coatings for Corrosion Protection: A Comprehensive Review," J. Mater. Sci. Technol., vol. 25, no. 3, pp.315-330, 2009.