International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
STUDY OF PROPERTIES OF POLYPROPYLENE-NATURAL FIBER COMPOSITE RAKESH KUMAR GUPTA1, MOHD ZIAULHAQ2 1M.Tech
Scholar, Mech. Engg. Deptt., Azad Institute of Engineering & Technology,Lucknow,Uttar Pradesh,India Engg. Deptt., Azad Institute of Engineering & Technology,Lucknow Uttar Pradesh.India ------------------------------------------------------------------------***----------------------------------------------------------------------2Asst.Prof.-Mechanical
Abstract : Recently, Jute, coir fibre is being used as a
step in the ever constant effort toward optimization in materials,Chawla (1998). Currently, the lightweight of composites that allows for lower fuel consumption has increased their use in a broad range of applications, including in the aerospace, automotive, and rail sectors. In the aerospace industry, the current emphasis on fuel efficiency favors the use of polymer matrix composites (PMCs) instead of aluminum and its alloys. Also, the production of a new class of aircraft - micro-jets – has called for an extensive use of lightweight composites. In the automotive industry, manufacturers are recognizing the advantages of weight reduction, parts consolidation, and design freedom that PMCs afford,Mazumdar (2002);Brostowet al. (2010).
reinforcement material in the development of reinforced plastics for various engineering applications. Its biodegradability, low cost, and moderate mechanical properties make it a preferable reinforcement material in the development of polymer matrix composites. Therefore, Jute, coir fibre reinforced composites have replaced the most widely used synthetic fibre (glass, kevlar) reinforced composites in many applications. In the present experimental endeavour, Jute coir fibre-polypropylene reinforced composites were prepared using hot press technique process. The weight percentage of the fibre reinforcement was varied as 5, 10 , 15 and 20%. The effect of the weight percentage of the Jute, coir fibre reinforcement was investigated experimentally on the mechanical properties of the developed composites. Jute and coir fibers were utilized at a ratio of (1:1) during composite manufacturing. Tensile, flexural, impact and hardness tests were conducted for mechanical characterization. The results reveal that, the mechanical properties of polypropylene based composites are substantially improved on account of the addition of the Jute fibre reinforcement. It has also been observed that the significance of the enhancement of the mechanical properties increased as the weight percentage of the Jute, coir fibre reinforcement increased up to 20%. Tensile, flexural, impact and hardness tests were conducted for mechanical characterization. Tensile test of composite showed a decreasing trend of tensile strength and increasing trend of the Young’s modulus with increasing fiber content. During flexural, impact and hardness tests, the flexural strength, flexural modulus, impact strength and hardness were found to be increased with increasing fiber loading. Based on the fiber loading used in this study, 20% fiber reinforced composite resulted the best set of mechanical properties.
Keywords:
Mechanical Properties; Polypropylene, Hybrid Composite
Coir,
So far, most of the PMC materials used in different sectors are principally fabricated using thermosetting matrices. However, thermosets have inherent disadvantages such as brittleness, long cure cycles, and difficult to repair and recycle damaged parts. These limitations led to the development of the thermoplastic matrix composite system. Compared with thermosets, composites fabricated from thermoplastic materials typically have more shelf life, greater strain to failure, rapid consolidation, excellent chemical resistance, better damping characteristics, low noise emission, and are repairable. Polypropylene (PP) is one of the most extensively used thermoplastic in industry due to its high chemical and wear resistance, low cost, easy process-ability and excellent mechanical properties, Mukhopadhyay and Srikanta (2008); Chand and Dwivedi (2006). Natural fibres become superior alternatives of synthetic fibres as reinforcements for polymeric composites due to their high flexural modulus and impact strength. In addition, natural fibers are environmentally friendly, biodegradable, abundantly available, renewable with low density and cheap. The biodegradability of natural fibres can contribute to a healthy ecosystem while their low cost and high performance fulfils the economic benefits of industries. Applications of natural fiber based polymeric composites are found in such products as housing construction materials, furniture, and automotive parts,Larbiget al.(1998);Eleiche and Amin(1986);Nirmalet al. (2010); El-Tayeb(2008). Pineapple leaf, oil palm fibre,
Jute,
1. INTRODUCTION Technological development mostly depends on advancements in the field of engineering materials. Conversely, in any field of endeavour, the final hurdle, facing constant advancements, is with materials. Composite materials in this regard represent nothing less than a giant
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