Investigation of effect of silica nanoparticles and zinc phosphate pigment on thermal and anticorrosion properties of the epoxy nanocomposite coatings
Document Type : Original Article
Authors
1
department of chemical engineering/ Shahid Bahonar university of Kerman
2
شهرک مطهری- انتهای باب الحوائج 8- سمت چپ- یک منزل مانده به آخر
3
Department of chemical engineering/ Shahid Bahonar university of Kerman
4
Departmant of chemical engineering / Shahid Bahonar university of Kerman
Abstract
Coating the surface of metal pipes is one of the solutions to protect pipelines against various types of corrosion. Adding inorganic nanoparticles to epoxy resin can improve the mechanical and chemical resistance of the coating. The purpose of this study is synthesis of epoxy and characterization of anticorrosion and thermal resistance. To accomplish this aim, epoxy nanocomposite were synthesized from nanosilica, Epiran 5s along with 3 different hardeners. The surface of silica nano particles was modified with trimethoxy methyl silane before using. Anti-corrosion properties were evaluated by Plunging tests, the results of this test indicated the superiority of the anti-corrosion properties of the coating containing phthalic anhydride hardener compared to other coatings. Finally, according to the TGA curves obtained from experiments and using mathematical equations relationships, activation energy for the production each of the coatings obtained subsequent test results also show that the thermal properties of the coating hardener of phthalic anhydride is higher than the others. The results show that thermal stability nanocomposite coating containing phthalic anhydride hardener is improved by 47% after modification with silane.
Keywords
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- Receive Date 13 July 2021
- Revise Date 23 September 2021
- Accept Date 10 October 2021