INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH VOLUME 9, ISSUE 04, APRIL 2020 ISSN 2277-8616 3521 IJSTR©2020 www.ijstr.org Investigational Study Of Mwcnt’s/Silicon Oxide Nanoparticles/Epoxy Resin Nanocomposite Coating On Mild Steel For Anticorrosion And Mechanical Properties Sandeep.V.Gujjar, Akshay D. Prajapati, Dr.Anand. M. Hunashyal , Dr. Shankar Hallad, Sunil Meti Abstract: Weathering of mild steel known as corrosion, affects the life span of engineering structures adversely. An attempt to enhance the durability of structure using Nanotechnology carried out in the present experimental work. Multi- Walled Carbon Nano Tubes were prepared by CVD method. For better dispersion of Multi- Walled Carbon Nano Tubes (MWCNT’s) and Silicon Oxide Nano particles were simultaneously ultrasonicated. The MWCNT’s/ SO/ Epoxy Nano composite coating effect on mild steel for corrosion behavior and mechanical properties were investigated. The anticorrosion property of the Nano composite coating was determined by immersion as well as salt spray method. Mechanical properties like tensile strength and scratch hardness were evaluated to compare with the plain mild steel and neat epoxy coated mild steel. For surface characterization, FESEM was conducted. The addition of MWCNTs and Silicon Oxide Nano particles in Epoxy resin improves the anticorrosion and mechanical properties of mild steel. Keywords: MWCNT’s, Silicon Oxide Nano particles, Epoxy Resin, Anticorrosion, Mechanical Properties, Coating —————————— —————————— 1. INTRODUCTION: The process of reduction of strength of metal by the surrounding environmental conditions through chemical reaction on the surface of the metal is known as corrosion. Corrosion is a natural process which is an electrochemical reaction which takes place when ferrous material is exposed to chemicals and moisture content in the atmosphere. The structure is adversely affected by corrosion and it poses a great hazard in the construction engineering. Due to corrosion, steel structure erodes and collapses. Many oil pipelines get damaged, leading to chemical plant leakage, etc., Due to corrosion, structure maintenance becomes expensive . Corrosion results in loss of structural strength reduces ductility and reduced shear capacity.(Gupta et al. 2017).In order to prevent the structures from undergoing corrosion , it is necessary to follow corrosion resistance methods. Multi-walled carbon nano tube (MWCNT) has highest quality of properties and is used in large number of commercial applications. MWCNT is a good conductor of electricity when integrated into a composite structure. It has high aspect ratio where the length is 100 times more than diameter (Beltram 2017). It has excellent tensile straight. However, strength can be increased with thermoplastic or thermo set compounds. MWCNTs as woven or non-woven fabrics material or resin implanted Bucky paper when immersed with thermo set resins have shown significant enhancement of hardness and quality of composite structures, like for example in golf club shafts and structural laminates for aerospace application.(Shahriary et al. 2014) The organic and in- organic material based on silica has many advantages, i.e., excellent barrier performance, good strength, and convenient processing. It is mainly used for catalysts, optical devices, protective coatings and composites. Nano Silicon oxide (SiO2) is also called as silica, which is an oxide of silicon with chemical formula SiO2. Sand is considered to be silica. Silicon oxide nano particles are also called as silica Nano-silica. The chief applications of silica nano particles are that they are used an additive for plastics and rubber. They are used as strengthening fillers for construction composites (AZoNano 2013). The performance of resin-based material can be improved by diapering the SiO2nanoparticles into the resin material. The improvement includes increased water resistance, strength, elongation, anti-aging and better surface finishing properties of the materials. (Cheng et al. 2018) Epoxy resin (E) material is identified by its high electrical properties and chemical resistance. It has low absorption of moisture and good strength. Glycidyl epoxy and Non-glycidyl epoxy resins are two important classifications of epoxy resins. Epoxy has excellent mechanical strength. It is comparatively cheaper. Epoxy resin possesses extremely good chemical resistance. It resists temperature as well. It is an ideal chemical used in electrical systems, electronics and other industrial applications. a Epoxy resin possesses excellent mechanical strength and low curing contraction. The most popular Nano fillers are; Nano silica, Montmorylonites, Fullerenes, and Carbon nanotubes. (Srivastava 2011) 2. EXPERIMENTAL PROGRAMME 2.1 Materials: Materials required are Multi-walled carbon nano tube’s (MWCNT’s), Nano silicon oxide (SiO), Epoxy resin (E) (Fine coat EP 200/A) and hardener (Fine coat EP 200/B), Mild steel, Thinner (Thinner-643), Acetone, etc. Multi- Walled Carbon Nano Tubes were prepared by CVD method. Epoxy resin (FINECOAT- EP 200A & B) is a two- component epoxy clear lacquer, cured with polyamide hardener. It cures at room temperature (above 10 o C).Multi -Walled Carbon Nano Tubes (MWCNT’s) and Silicon oxide (SiO) as shown in Figure.1 and 2 were purchased from ―Platonic Nanotech private limited," Jharkhand, India. Epoxy resin was purchased from the ―Fine Finish Organics Pvt.Ltd‖ (ISO 9001- 2008 certified company) Taloja, Navi Mumbai, India. Pneumatic spray gun was purchased from ―Burhani hardware‖, Dahanu road, Palghar dist., India. Mild steel was supplied from ―Shubh M. L. Shah and Sons Steel Pvt. Ltd.‖ Dahanu road, Mumbai, India. The technical specifications of
Investigational Study Of Mwcnt’s/Silicon Oxide Nanoparticles/Epoxy Resin Nanocomposite Coating On Mild Steel For Anticorrosion And Mechanical Properties
Jun 16, 2023
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