Study on morphology and mechanical behavior of areca leaf sheath reinforced epoxy composites
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ORIGINAL RESEARCH
Study on morphology and mechanical behavior of areca leaf sheath reinforced epoxy composites R. B. Ashok 1
&
C. V. Srinivasa 2 & B. Basavaraju 3
Received: 28 February 2020 / Revised: 21 July 2020 / Accepted: 31 July 2020 # Springer Nature Switzerland AG 2020
Abstract Nowadays, current inventions are concentrated on the use of natural fibers which are biodegradable, eco-friendly, and easily available constituents such as fibers of hemp, sisal, coconut viz. viz. along with polymers to achieve greater strength with reduced weight of composites. Green composite materials are becoming interested in their applications in the fields of manufacturing, aerospace, sport, households, and so on. In the present work, the processing of areca leaf sheath (ALS) with epoxy resin as a novel matrix for enhanced green polymer composites has been reported. The effect of areca palm age, surface modification, and the number of layers on mechanical properties like tensile strength and flexural strengths has been determined. Present work reveals that mechanical properties of multiple layered ALS composites had exhibited higher tensile strength (20.51 MPa for 10% NaOH treated, 5 layered, and 6-year aged ALS composites) and flexural strength (115.27 MPa for 10% NaOH treated, 4 layered, and 6-year aged ALS composite) as compared to all other categories. From XRD, FTIR, and SEM analysis, it is evident that surface modification will enhance the micro-fibrillation of the natural fibers and this will increase the mechanical properties of the natural fiber reinforced composites. Keywords Areca leaf sheath (ALS) . Experimental study . Mechanical properties . Natural composites . Morphology . Surface modification . Scanning electron microscope (SEM) . Fourier-transform infrared spectroscopy (FTIR) . X-ray diffraction (XRD)
1 Introduction In today’s life, because of the vast usage of the traditional materials, an era of metals, non-metals, and man-made (artificial) materials has come to an end. This 21st century is now advancing towards the use of naturally available constituents in the place of traditional materials. Keeping this in mind, many works related to natural fiber-reinforced composites have been discussed in this section.
* R. B. Ashok [email protected] 1
Faculty of Mechanical Engineering, PES Institute of Technology and Management, Visvesvaraya Technological University, Shivamogga, Karnataka 577 204, India
2
Faculty of Mechanical Engineering, GM Institute of Technology, Visvesvaraya Technological University, Davangere, Karnataka 577 006, India
3
Faculty of Chemistry, Alva’s Institute of Engineering and Technology, Visvesvaraya Technological University, Mijar, Moodbidri, Mangalore, Karnataka 574 225, India
Another important point is that several fibers with the same mechanical properties are recorded as being more expensive than other fibers. It is stated that fibers such as flax, ramie, hemp, and cotton have higher costs than all other fibers, but they do not have major mechanical advantages. This will
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