Article
Materials Science, Textiles
Janaki Dehury, Subhakanta Nayak, Jyoti Ranjan Mohanty
Summary: In this study, a novel purslane fiber was identified and the effects of surface modifications on its physical, mechanical, and thermal properties were studied. Among the different chemical treatments, acrylic acid treatment showed the best enhancement in tensile strength, with an improvement of 36.68% compared to untreated fibers.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Textiles
Nadjoua Bellel, Nadir Bellel
Summary: A new composite material based on Portland cement and date palm fiber was studied as a thermal insulation material for exterior coatings of buildings. Analysis techniques including FTIR, XRD, TGA, and SEM were used to study the properties of the composites. The results showed that the addition of date palm fibers did not affect the chemical composition of the matrix, but increased porosity and decreased thermal conductivity, making it a promising thermal insulation material for buildings.
JOURNAL OF ENGINEERED FIBERS AND FABRICS
(2023)
Article
Materials Science, Textiles
Subhakanta Nayak, Priyaranjan Samal, Chandrabhanu Malla, Manoj Kumar Pradhan, Sujit Kumar Khuntia, Jagannath Mohapatra, Pradeep Kumar Jena, Saroj Kumar Patra, Bijaya Bijeta Nayak, Suchismita Swain
Summary: This research focuses on developing a new material by reinforcing chemically treated Eleusine Indica (EI) fiber with epoxy resin as matrix. The mechanical and thermal properties of composites reinforced with treated fibers were enhanced due to surface modification. The composites with 20 wt% fiber concentration showed good tensile strength, Young's modulus, and impact strength. The findings provide a concept for using composites in automotive parts for improved fuel efficiency.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Materials Science, Textiles
Pradeep Kumar Jena, Jyoti Ranjan Mohanty, Subhakanta Nayak
Summary: Surface modification of natural fibers is crucial for enhancing their compatibility with polymer matrices in the development of eco-friendly composite materials. This study investigates the effects of different surface modifications on vetiver fibers in terms of mechanical and thermal properties, and finds that benzoylation treatment shows superior performance compared to other treatments.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Composites
Vinyas Mahesh, Athul S. Joseph, Vishwas Mahesh, Dineshkumar Harursampath
Summary: The study focuses on experimentally evaluating the thermal behavior of extruded glycol-modified poly(ethylene terephthalate) comonomers reinforced with short carbon fibers and organically modified montmorillonite nanoclay for 3D printing applications.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Textiles
Subhakanta Nayak, Pradeep Kumar Jena, Priyaranjan Samal, Sabitarani Sahoo, Sujit Kumar Khuntia, Jyoti Ranjan Behera
Summary: LF fibers treated with chemicals showed improved properties in PET composites, with 20wt% fiber loading exhibiting the highest mechanical properties suitable for packaging applications. The improved fiber-matrix bonding was also observed in SEM images.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Forestry
Mojgan Vaziri, Olov Karlsson, Lars Abrahamsson, Chia-Feng Lin, Dick Sandberg
Summary: This study demonstrates that welding treatment leads to higher hydrophobicity and lower water uptake and swelling in pine joints, while beech joints show increased hydrophobicity, decreased water uptake, but increased swelling. The welding process increases specific absorption bands in pine and beech, promoting a dense structure in the joints.
Article
Chemistry, Multidisciplinary
Soon Yuan Jie, Leow Zhi Hoe, Suvash Chandra Paul, Vivi Anggraini
Summary: This study investigated the tensile behavior, microstructure characteristics, and chemical structure alteration of geotextiles exposed to UV degradation through outdoor weathering tests. The results showed that woven geotextiles exhibited significant tensile strength degradation, while composite geotextiles showed minimal degradation. Microcracks were observed on the surface of the composite geotextiles, while the fiber alignment loosened in woven geotextiles. FTIR analysis revealed a notable chemical structure alteration in the polypropylene of the geotextiles.
APPLIED SCIENCES-BASEL
(2022)
Article
Polymer Science
Nadia Akram, Muhammad Saeed, Muhammad Usman, Asim Mansha, Fozia Anjum, Khalid Mahmood Zia, Irfan Mahmood, Nida Mumtaz, Waheed Gul Khan
Summary: Two series of Polyurethan composites were synthesized in this study, showing significant changes in mechanical behavior induced by graphene oxide in the polymer matrix. Analysis using FTIR and TGA techniques revealed the structure and thermal stability of the composites.
Article
Materials Science, Textiles
Susanta Behera, J. R. Mohanty, G. Nath, Tapan K. Mahanta
Summary: The fabrication and properties of acrylic acid treated rattan fiber reinforced epoxy composite were studied. The optimum fiber loading was determined to be 18 wt%, which resulted in the highest tensile strength. The interaction between rattan fiber and epoxy matrix was analyzed using FTIR spectroscopy and XRD. SEM was used to examine the morphology of the modified rattan fiber and RF/Epoxy composite. Mechanical, thermal, and dynamic mechanical properties of the 18 wt% RF/Epoxy composite were evaluated according to ASTM standards. The composite displayed superior properties compared to other natural fiber composites, making it a potential candidate for automotive body parts.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Environmental Sciences
Tania Toapanta, Elvis D. Okoffo, Sarah Ede, Stacey O'Brien, Stephen D. Burrows, Francisca Ribeiro, Michael Gallen, John Colwell, Andrew K. Whittaker, Sarit Kaserzon, Kevin V. Thomas
Summary: The study evaluated the influence of photo-oxidation on the quantification of isotactic polypropylene by Pyrolysis Gas Chromatography/Mass Spectrometry. The degradation rate of fragments was found to be three times faster than beads, likely due to their larger surface area. Additionally, polypropylene subjected to harsh weathering conditions may be underestimated by 42% to 49% when quantified using Pyr-GC/MS with virgin polypropylene calibration standards.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Food Science & Technology
Nina Bao, Di Wang, Xizhe Fu, Hujun Xie, Guizhen Gao, Zisheng Luo
Summary: Lotus Receptaculum Nelumbinis has sparked wide research interests due to its rich phenolic compounds. Ultrasonic-assisted extraction combined with glycerol was utilized to extract phenolic compounds, and the process was optimized using response surface methodology with Box-Behnken design. The optimal conditions resulted in a TPC extraction yield of 92.84 +/- 2.13 mg gallic acid equivalents (GAE) /g, and antioxidant activities were demonstrated through four different methods.
Article
Energy & Fuels
Gmar Bensidhom, Miriam Arabiourrutia, Aida Ben Hassen Trabelsi, Maria Cortazar, Selim Ceylan, Martin Olazar
Summary: Fast pyrolysis of Date Palm Petiole and Date Palm Seed biomass was conducted at different temperatures to study the effect on product distribution. Temperature greatly influenced the concentration of components in the volatile stream, with the most abundant compound identified as levoglucosan, derived from cellulose degradation. Understanding the product composition is crucial for developing large scale fast pyrolysis units for valorizing Tunisian agricultural wastes.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Mechanics
M. Asim, M. Jawaid, H. Fouad, O. Y. Alothman
Summary: The research demonstrated that NaOH treated date palm fibers can effectively enhance the performance of phenolic-based composites, resulting in superior tensile strength and thermal stability. However, there may be some decline in flexural performance and fiber/matrix bonding.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Textiles
R. Vijay, Jafrey Daniel James Dhilip, S. Gowtham, S. Harikrishnan, B. Chandru, M. Amarnath, Anish Khan
Summary: This study selected Vachellia farnesiana fiber as a natural fiber and characterized its physical, chemical, and thermal properties. The results showed that the fiber had a certain degree of crystallinity and char residue.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Engineering, Mechanical
Priyaranjan Samal, Pandu R. Vundavilli, Arabinda Meher, Manas M. Mahapatra
Summary: The study models the wear performance of AA5052 metal matrix composites reinforced with in-situ formed TiC particles using statistical-based non-linear regression and fuzzy logic system. The significance and contribution of control parameters were analyzed through analysis of variance method. Sliding distance and applied load were found to have a substantial effect on the volumetric wear loss and coefficient of friction. The use of fuzzy logic in wear modeling for aluminum 5052 MMC was a novel approach, with the study providing insights for developing wear components for industrial applications.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Textiles
Pradeep Kumar Jena, Priyaranjan Samal, Subhakanta Nayak, Jyoti Ranjan Behera, Sujit Kumar Khuntia, Jagannath Mohapatra, Saumya Darsan Mohanty, Chandrabhanu Malla
Summary: The newly identified cellulosic fiber extracted from the bark of Erythrina variegata tree was found to have high cellulose and lignin content, high crystallinity, thermal stability, tensile strength, and Young's modulus, along with a rough fiber surface for better interfacial adhesion with the polymer matrix.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Textiles
Subhakanta Nayak, Pradeep Kumar Jena, Priyaranjan Samal, Sabitarani Sahoo, Sujit Kumar Khuntia, Jyoti Ranjan Behera
Summary: LF fibers treated with chemicals showed improved properties in PET composites, with 20wt% fiber loading exhibiting the highest mechanical properties suitable for packaging applications. The improved fiber-matrix bonding was also observed in SEM images.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Engineering, Mechanical
Arabinda Meher, Manas Mohan Mahapatra, Priyaranjan Samal, Pandu R. Vundavilli
Summary: In this study, statistical analysis on the tribological behavior of RZ5/TiB2 magnesium-based metal matrix composites was carried out using Taguchi design and analysis of variance (ANOVA) technique. The study found that sliding distance and wt.% TiB2 were the most significant factors affecting weight loss and coefficient of friction. The regression equation formulated using ANOVA technique was validated through a comprehensive series of abrasive wear tests, with a percentage deviation of regression modeling within the range of +/- 10%.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Textiles
Pradeep Kumar Jena, Subhakanta Nayak, JyotiRanjan Mohanty, Priyaranjan Samal, Saumya Darsan Mohanty, Chandrabhanu Malla, Jyoti Ranjan Behera, Sujit Kumar Khuntia, Jagannath Mohapatra
Summary: This research work focuses on the fabrication and study of a novel epoxy composite reinforced with vetiver grass fiber and red mud. The results show that increasing the content of red mud improves both the mechanical and wear properties of the composite. Scanning electron microscopy observations reveal phenomena such as fiber-matrix debonding, fiber fracture, and wear scars on the worn surfaces.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Textiles
Subhakanta Nayak, Priyaranjan Samal, Chandrabhanu Malla, Manoj Kumar Pradhan, Sujit Kumar Khuntia, Jagannath Mohapatra, Pradeep Kumar Jena, Saroj Kumar Patra, Bijaya Bijeta Nayak, Suchismita Swain
Summary: This research focuses on developing a new material by reinforcing chemically treated Eleusine Indica (EI) fiber with epoxy resin as matrix. The mechanical and thermal properties of composites reinforced with treated fibers were enhanced due to surface modification. The composites with 20 wt% fiber concentration showed good tensile strength, Young's modulus, and impact strength. The findings provide a concept for using composites in automotive parts for improved fuel efficiency.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Materials Science, Textiles
Sibakanta Sahu, Saipad B. B. P. J. Sahu, Subhakanta Nayak, Jagannath Mohapatra, Sujit Kumar Khuntia, Chandrabhanu Malla, Priyaranjan Samal, Saroj Kumar Patra, Suchismita Swain
Summary: Bauhinia vahlii (BV) is a promising renewable resource for its cellulosic biomass, and its bast fiber could replace synthetic fibers in biopolymer composites. This study focuses on the extraction, surface modification, and comprehensive characterization of BV bast fibers for the production of sustainable fiber-reinforced polymer composites. The surface treatments significantly improved the chemical and mechanical properties of the fibers, leading to a higher tensile strength and Young's modulus. Moreover, the surface treatments affected the surface morphology, removed certain components from the fiber surface, and influenced the crystallinity index.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Chemistry, Multidisciplinary
Priyaranjan Samal, Harihar Tarai, Arabinda Meher, B. Surekha, Pandu R. Vundavilli
Summary: This study compares the mechanical behavior and microstructural characteristics of Cu matrix hybrid composites reinforced with SiC-Gr(p) and WC-Gr(p) fabricated through the stir casting process. The dispersion of reinforced particles in the composites was uniform, and the presence of SiC, WC, and Cu alloy was confirmed by XRD. The addition of hard ceramic materials improved the tensile behavior and microhardness of the Cu-based MMCs, with the WC-Gr reinforced composites exhibiting superior mechanical properties compared to the SiC-Gr reinforced composites. The fracture surfaces indicated ductile fracture in both hybrid composites.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Mechanical
Priyaranjan Samal, Pandu R. Vundavilli
Summary: In this research, aluminum alloy AA5052-based hybrid metal matrix composites (MMCs) were fabricated using in situ synthesized titanium carbide (TiC) and ex situ multi-walled carbon nanotube (MWCNT) as reinforcements. The wear characteristics of the aluminum hybrid MMCs were analyzed under the synergistic effects of TiC and multi-walled CNT. The influence of various input process parameters on the tribological behavior of the fabricated samples was investigated.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2023)
Article
Energy & Fuels
Subhakanta Nayak, Jagannath Mohapatra, Kamalakanta Muduli, Sujit Kumar Khuntia, Chandrabhanu Malla, Saroj Kumar Patra, Bijaya Bijeta Nayak, Priyaranjan Samal, Suchismita Swain, Pradeep Kumar Jena
Summary: This study investigates the mechanical and thermal properties of a composite made of chitosan and careya arborea bast fiber (CA) that underwent treatment in an alkaline solution. Six different hybrid samples were created by varying the proportions of CA fiber during the hand lay-up procedure. Tensile, flexural, compression, and impact tests were conducted according to ASTM standards, and the fractured surface after the tensile test was analyzed using a scanning electron microscope. The results showed that the composites with treated CA fiber exhibited enhanced mechanical properties compared to those with untreated CA fiber. Furthermore, the mechanical properties increased with increasing CA fiber loading up to an optimum of 20 wt%, after which they began to decline. The mechanical properties at 20 wt% fiber loading were 58.95 MPa tensile strength, 48.29 MPa flexural strength, and 27.89 kJ/m(2) impact strength. Analytical methods used in this study included X-ray diffraction, Fourier transform infrared spectroscopy, differential thermal analysis, and thermogravimetric analysis. Overall, the findings demonstrate that chemically treated CA fiber reinforcement in chitosan matrix enhances the properties of the fabricated composite materials. Compared to other fabricated composites, the composites with 20 wt% fiber content exhibited improved static, dynamic, and thermal properties, making them potentially useful in the packaging industry.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Materials Science, Textiles
Saipad Bhakta Bhagabati Prasanna J. Sahu, Subhakanta Nayak, Sibakanta Sahu, Jagannath Mohapatra, Sujit Kumar Khuntia, Prafulla Kumar Sahoo, Priyaranjan Samal, Saroj Kumar Patra, Suchismita Swain, Bijaya Bijeta Nayak
Summary: The aim of this study was to explore the potential of CASCABELA thevetia (CT) bast fibers as reinforcement in polymer composites. The extracted fibers were chemically treated and composites with 20 wt% fiber loading showed the highest mechanical properties.
JOURNAL OF NATURAL FIBERS
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Ravi Kumar, A. Nait Salah, Neeraj Kant, Pushpender Singh, Abdul Wahab Hashmi, Chandrabhanu Malla
Summary: In this study, the dissimilar aluminum alloys AA2024 and AA6082 were successfully fabricated via friction stir welding (FSW) with varying input parameters. The results showed that a high rotational speed led to a great mixing of the alloys, and a higher rotational speed enhanced the mechanical properties of the stir zone (SZ). The maximum ultimate tensile strength (UTS) was achieved at a rotational speed of 1400 rpm with a welding speed of 30 mm/min, attributed to strain-free fine grains during dynamic recrystallization (DRX) mechanism.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
D. Saravanan, Shrishail B. Sollapur, S. B. Anjappa, Chandrabhanu Malla, M. Satya Prasad, S. Vignesh
Summary: This paper discusses the mechanism, properties, and influencing factors of wear, focusing on the tribological performance of polymer materials, as well as the tribological behavior of particulate green fillers and hybrid composites. Polymers are widely used as alternatives to traditional metals in engineering, medical, and automotive applications, making the study of their tribological performance important.
MATERIALS TODAY-PROCEEDINGS
(2022)
