The Effect of Moisture on the Properties of Glass Fiber Polymer Matrix Composites with MoS2 and CaCO3
Kadiyala Jhansi1, Kondru Nagendra Babu2, Lokavarapu Bhaskara Rao3
1Kadiyala Jhansi, Department of Mechanical Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, (Telangana), India.
2Kondru Nagendra Babu, Department of Mechanical Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, (Telangana), India.
3Lokavarapu Bhaskara Rao, School of Mechanical and Building Sciences, VIT Chennai, Vandalur Kelambakkam Road, Chennai, (Tamil Nadu), India.
Manuscript received on July 10, 2019. | Revised Manuscript received on August 17, 2019. | Manuscript published on August 30, 2019. | PP: 4800-4806 | Volume-8 Issue-6, August 2019. | Retrieval Number: F9090088619/2019©BEIESP | DOI: 10.35940/ijeat.F9090.088619
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The mechanical properties and water absorption behavior of a pure glass fiber reinforced epoxy matrix and a glass fiber reinforced epoxy filled composites immersed into a tap water were investigated. The main purpose of this experiment is addition of two different powdered fillers (CaCO3 and MoS2 ) into the epoxy matrix and comparing the properties of pure GFRP and filled GFRP. The composites specimens with fillers absorb less water when compared to pure GFRP specimens at room temperature. Water absorption curves and equilibrium moisture content were determined. The composites exhibit a positive deviation from the Fickan’s law with the addition of fillers into the matrix. The influence of water uptake has significant effect on the reduction of mechanical properties. It is observed that 3% filled MoS2 in epoxy matrix has less uptake of water and the tensile strength decreased is 3% , flexural strength decreased up to 18% and shear strength is 42% decreased when compared to CaCO3 filled composites and unfilled glass fiber reinforced polymer composite.
Keywords: Fillers, Water absorption, Fickan’s law.