Study on the Mechanical, Morphological and Wear Rate of Jute Cellulose-Reinforced Composites Challa Karunakar, Chada Radhika Tribology in Industry, 2025 The increasing global demand for polymer-based materials has accelerated the pursuit of sustainable and biodegradable reinforcements to enhance composite performance. In this study, cellulose was derived from jute fiber through acid hydrolysis, chlorination, alkaline extraction and bleaching. Epoxy-based composites were fabricated via the hand layup technique by incorporating varying weight fractions (5wt%, 10wt% 15wt% and 20wt%) of jute cellulose into the epoxy matrix. The mechanical performance of the fabricated composites, including tensile strength, flexural strength and hardness was evaluated in accordance with ASTM standards, along with dry sliding wear performance under abrasive conditions. Among the tested compositions, the composite containing 15wt% jute cellulose (15J) exhibited the highest mechanical performance, achieving a tensile strength of 22.30MPa, flexural strength of 65.23MPa and surface hardness of 90. Notably, it also exhibited the lowest wear rate, showing a 43.75% improvement in wear resistance compared to neat epoxy. This enhancement is attributed to improved cellulose fibril–matrix interfacial bonding and uniform dispersion. SEM analysis confirmed microstructural integrity and identified typical failure modes such as fibril pull-out and micro-voids. The results establish 15wt% jute cellulose as an effective reinforcement for developing cost-effective, biodegradable composites suited for structural and automotive applications.
Study of moisture absorption, mechanical properties and morphology of jute/sisal hybrid cellulose composites Challa Karunakar, C. V. Mohan Rao, Radhika Chada Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, 2025 In the current research work, an attempt has been made to fabricate hybrid cellulose-reinforced composites as a step towards the development of sustainable and ecofriendly materials. Cellulose is extracted from sisal and jute fibers using water pre hydrolysis synthesis. Hybrid cellulose composites are fabricated using different wt% combinations of sisal and jute celluloses and epoxy resin by hand layup technique. These composites are exposed to different environmental conditions that is, saltwater, tap water, and kerosene to explore the impact of moisture absorption on tensile, flexural and impact properties. It was observed that samples immersed in tap water absorbed maximum moisture content when compared with samples in saline water and kerosene. Exposure to various moisture conditions deteriorated mechanical characteristics that is, tensile, flexural, and impact properties in all compositions. Dry hybrid cellulose composite with 10S + 5J composition exhibited the maximum tensile strength (i.e. 25.04 MPa) and flexural strength (i.e. 74.24 MPa). In contrast, 5S + 10J dry composites exhibited better impact strength (1.6733 kJ/m2). SEM micrographs of tensile fracture surfaces confirmed that pull out of fibers, presence of micro voids and delamination are the significant causes for the failure of composites. Further, SEM micrographs correlated with moisture absorption effects to probe mechanical behavior and durability of the composites under different environmental effects. The study demonstrates that hybrid cellulose composites are ideal for low-load automotive applications, enhancing sustainability and biodegradability.
Study of moisture absorption, mechanical properties and morphology of jute/sisal hybrid cellulose composites C Karunakar, CVM Rao, R Chada Proceedings of the Institution of Mechanical Engineers, Part C: Journal of … , 2025 2025.0 Citations: 4
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Ultrasonic Measurements of the Elastic Moduli of natural Fiber Reinforced Cellulose Composites CK A.Kiran Kumar, K. Kishor Kumar 25th National Seminar & International Exhibition on "NON DESTRUCTIVE EVALUATION" , 2015 2015.0
“Development and evaluation of some of the mechanical Properties of kenaf/polyester cellulose composites TV B.Gowtham,Ch.Karunakar, A.Prasanth IJMET 5 (Issue 9), 266-272. , 2014 2014.0
Development And Evaluation of Some of The Mechanical Properties of Kenaf/Polyester Cellulose Composites ICCTE Management ICCTEM-2014 , 2014 2014.0
Flexural Properties Of Green Composites Reinforced With Short Kenaf And Thespesia Lampus Fibers CKDKRNR K.Kishor Kumar International Conference on Advanced Materials, Manufacturing, Management … , 2013 2013.0
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Applications of MEMS in Bio-Medical field AKKCK K. Kishor Kumar 1st National conference on Advances in Mechanical Engineering at KITS, Huzurabad , 2012 2012.0
Dynamic Mechanical Behavior of Woven Kenaf / polyester Composites DDKNR K. Raja Narender Reddy, Ch. Karunakar K. Kishor Kumar Fourth National Conference on Trends in Mechanical Engineering (TIME' 10) at … , 2010 2010.0
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Effect of interdigitated leaf channel design bipolar plate on the performance of proton exchange membrane fuel cell KSAVSRC Srinivasa Reddy Badduri, G. Naga Srinivasulu, S. Srinivasa Rao, V ... springer link, 1095–1106 (2023) , 2022 2022.0 Citations: 10
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Preparation and Testing of Glass Powder Reinforced Polyester Resin Lamina SS Mohd. Abdul Mubeen, Sri Ch. Karunakar Materials today proceedings Science Direct (Elsevier) 23 (Part 3, 2020 … , 2020 2020.0 Citations: 5
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Design of Air Bag System by Hydraulic Circuit and Direct Acting Solenoid Flow Regulator KUKCK 3. Challagonda Sandeep Reddy International Journal of Science Technology & Engineering (IJSTE) 4 (issue … , 2018 2018.0
Ultrasonic Measurements of the Elastic Moduli of natural Fiber Reinforced Cellulose Composites CK A.Kiran Kumar, K. Kishor Kumar 25th National Seminar & International Exhibition on "NON DESTRUCTIVE EVALUATION" , 2015 2015.0
“Development and evaluation of some of the mechanical Properties of kenaf/polyester cellulose composites TV B.Gowtham,Ch.Karunakar, A.Prasanth IJMET 5 (Issue 9), 266-272. , 2014 2014.0
Development And Evaluation of Some of The Mechanical Properties of Kenaf/Polyester Cellulose Composites ICCTE Management ICCTEM-2014 , 2014 2014.0
Flexural Properties Of Green Composites Reinforced With Short Kenaf And Thespesia Lampus Fibers CKDKRNR K.Kishor Kumar International Conference on Advanced Materials, Manufacturing, Management … , 2013 2013.0
Preparation and characterization of cellulose based natural fibre reinforced composites KKK Ch. Karunakar, Dr.K. Raja Narender Reddy NCAME, 72-75 , 2013 2013.0
Applications of MEMS in Bio-Medical field AKKCK K. Kishor Kumar 1st National conference on Advances in Mechanical Engineering at KITS, Huzurabad , 2012 2012.0
Dynamic Mechanical Behavior of Woven Kenaf / polyester Composites DDKNR K. Raja Narender Reddy, Ch. Karunakar K. Kishor Kumar Fourth National Conference on Trends in Mechanical Engineering (TIME' 10) at … , 2010 2010.0
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