Degradation of Mechanical Properties of Hybrid Reinforcement with Epoxy-Polyester Matrix Under Water Absorption
Palnati Swarnalatha1, G. Srininvasa Gupta2, Ajay Kumar Kaviti3
1Mrs. Palnati Swarnalatha, PG scholar in Advanced Manufacturing system (AMS) from VNRVJIET, Hyderabad, India.
2Dr. Gembali Srinivasa Gupta, HOD & Professor, Department of Mechanical Engineering, VNR Vignana Jyothi Institute of Engineering & Technology, Hyderabad, India.
3Dr. Ajay Kumar Kaviti, Associate Professor, Department of Mechanical Engineering, VNR Vignana Jyothi Institute of Engineering & Technology, Hyderabad, India.
Manuscript received on January 01, 2020. | Revised Manuscript received on January 20, 2020. | Manuscript published on January 30, 2020. | PP: 3586-3590 | Volume-8 Issue-5, January 2020. | Retrieval Number: E6500018520/2020©BEIESP | DOI: 10.35940/ijrte.E6500.018520
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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: Natural fiberss represent a good renewable and biodegradable alternative the.. most common man-made reinforcement. Among various fibers, natural fibers are used due to their advantages, easy availability, low density, low production cost and better mechanical properties. The aim of this work is to study the degradation of hybrid composites when exposed to moisture condition at room temperature. Hand lay-up method is used to prepare the laminates with the J-G FRP and epoxy matrix. Water absorption test is carried out by immersing the specimen in water tub at room temperature for different time periods. Mechanical properties.. like Tensile strength, Flexural strength, Impact strength and Hardness are evaluated by performing different tests on laminates. The mechanicall properties of water immersed specimen were tested and compared with dry samples as per the ASTM standard. The composites specimens with J-G FRE matrix absorbs less amount of water when compared to polyester specimens. Equilibrium moisture content and water absorption curves were determined. J-G FRE matrix composite was found to have less water absorption and decreased impact strength is 0.19J / mm2, decreased tensile strength is 61.11MPa, decreased flexural strength is 31.29MPa and decreased stiffness is 13HN compared to J-G FRP matrix composite.
Keywords: Hybrid Composite, Epoxy Resin, Polyester Resin, Water Absorption.
Scope of the Article: Water Supply and Drainage.