ORCID Profile
0000-0002-7284-0813
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Composite and Hybrid Materials | Macromolecular and Materials Chemistry not elsewhere classified | Polymers and Plastics | Materials Engineering
Industrial Chemicals and Related Products not elsewhere classified | Plant Production and Plant Primary Products not elsewhere classified | Environmentally Sustainable Manufacturing not elsewhere classified |
Publisher: American Chemical Society (ACS)
Date: 06-12-2016
DOI: 10.1021/ACS.LANGMUIR.6B03467
Abstract: Adhesive interactions between nanofibers strongly influence the mechanical behavior of soft materials composed of fibrous networks. We use atomic force microscopy in lateral force mode to drag a cantilever tip through fibrous networks, and use the measured lateral force response to determine the adhesive forces between fibers of the order of 100 nm diameter. The peaks in lateral force curves are directly related to the detachment energy between two fibers the data is analyzed using the Jarzynski equality to yield the average adhesion energy of the weakest links. The method is successfully used to measure adhesion forces arising from van der Waals interactions between electrospun polymer fibers in networks of varying density. This approach overcomes the need to isolate and handle in idual fibers, and can be readily employed in the design and evaluation of advanced materials and biomaterials which, through inspiration from nature, are increasingly incorporating nanofibers. The data obtained with this technique may also be of critical importance in the development of network models capable of predicting the mechanics of fibrous materials.
Publisher: Elsevier BV
Date: 2021
Publisher: Elsevier BV
Date: 04-2015
Publisher: Wiley
Date: 29-09-2023
DOI: 10.1111/IJFS.16735
Publisher: Elsevier BV
Date: 10-2021
Publisher: Wiley
Date: 24-05-2021
Abstract: Luminescent solar concentrators (LSCs) have recently gained popularity as an effective solution to increase solar energy conversion. Utilizing LSCs together with solar cells can generate more energy at a lower cost than using only solar cells. LSCs operate by utilizing luminophores, molecules that absorb incident solar irradiation and re‐emit photons, and waveguides that redirect emitted photons to the edges of a glass or polymer slab at high concentrations. Many quantum dots (QDs) have been the focus of much research as luminophores for LSCs, owing to their high quantum yields (QYs), controllable absorption/emission spectra, good stability, and ease of synthesis. Various QDs, such as CdSe, PbS, CdS, AgInS 2 , Si, and C, have been modified to enhance their optical performances in LSCs, often measured by their optical efficiencies, internal/external quantum efficiencies, and power conversion efficiencies. This review appraises the latest developments in colloidal QDs — basic QDs, doped QDs, core/shell QDs, hybrid QDs, and Si‐based QD — for their applications in LSCs. Other factors that enhance an LSC's efficiency, such as altering the polymer matrix and using distributed Bragg reflectors, are discussed. The development of highly efficient, QD‐based LSCs will be essential for increasing solar energy production worldwide.
Publisher: Wiley
Date: 08-07-2020
Publisher: Wiley
Date: 26-01-2022
DOI: 10.1002/PEN.25899
Abstract: In a manner of addressing challenges in scalable processing of thermoplastic polyurethane (TPU) nanocomposites through extrusion methods, this study reports a very clean processing approach of incorporating cellulose nanocrystal (CNC) into a TPU matrix, with no acid or organic‐solvents usage. It involves a mechanical deconstruction of microcrystalline cellulose (MCC) into nanoscale particles in water and polyol through scalable bead‐milling, vacuum drying, and followed by twin‐screw reactive extrusion with isocyanate and chain extender. The thermal stability of CNC was higher than that of typically acid‐hydrolyzed CNC and suitable for processing with the precursors of TPU at typical processing temperature range (175–190°C). The CNC incorporation at very low loadings (0.5, 0.8 wt%) through this methodology resulted in substantial enhancements in tensile properties (for ex le, up to 28% in strength and toughness) without any significant stiffening effect. Moreover, the nanocomposites retained elastic properties, including elongation at break (%), resilience, and creep resistance. Their chemical properties and thermal transitions were also found to support the retained thermoplastic behavior while improving mechanical performance.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA02936H
Abstract: The production of high aspect ratio cellulose nanofibres without resorting to very harsh mechanical and/or chemical processing steps remains a challenge that hinders progress in the fast-moving nanocellulose field.
Publisher: Elsevier BV
Date: 03-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7NR02632C
Abstract: Remnant lignin and hemicellulose in the cellulose nanofibre (CNF) and a deep-eutectic-solvent pretreatment on CNF can enhace the tensile strength and toughness or natural rubber nanocomposites.
Publisher: Hindawi Limited
Date: 2016
DOI: 10.1155/2016/1857297
Publisher: Springer Science and Business Media LLC
Date: 29-06-2015
Publisher: American Chemical Society (ACS)
Date: 27-11-2018
Publisher: Wiley
Date: 02-2021
Abstract: Developing nanogenerators (NGs) is achieved by exploiting the piezoelectric, triboelectric, and pyroelectric effects of both organic and inorganic materials. Many exhibit beneficial electrical properties (dielectric, conductive, or insulating) or have surfaces that are polarizable upon friction or physical contact. Recently, biomass‐derived materials and recycled materials, whose electrical activity can be induced, are explored for application in the design of more sustainable, cost‐effective, biodegradable, disposable NGs, and have demonstrated a wide range of output (microenergy) power densities. Among them, cellulose, the most abundant biopolymer, is found to offer excellent opportunities for designing and manufacturing NGs with multifunctional capacities. Cellulose can be derived into varied forms with multifunctionalities and physical morphologies. This account provides an overview of how cellulose is utilized in creating NGs based on piezoelectric, triboelectric, and pyroelectric effects. Because the mechanical properties of cellulose are tunable, current research trends on NGs originate with the triboelectric effect. The discussion here focuses on design, fabrication methods, achievable electrical power output, and combinations with other materials and devices. Challenges in efficient fabrication and consistent power densities, and opportunities for integrating different technologies and developing more sustainable (in terms of economic, environmental, and ecological) nature–human–machine interfacial devices are also discussed.
Publisher: Elsevier BV
Date: 10-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7SE00169J
Abstract: Spinifex grass derived hard carbon is used as anodes for sodium-ion batteries. Extraordinary stability and capacity retention of ∼300 mA h g −1 on prolonged cycling against sodium was observed. The eco-friendly and low-cost synthesis procedure make the biomass derived carbon material promising for energy storage applications.
Publisher: Elsevier BV
Date: 07-2018
Publisher: Elsevier
Date: 2021
Publisher: American Chemical Society (ACS)
Date: 07-03-2017
Publisher: Oxford University Press
Date: 28-04-2011
Publisher: Elsevier BV
Date: 08-2014
Publisher: Elsevier BV
Date: 02-2020
Publisher: Springer Science and Business Media LLC
Date: 26-06-2017
Publisher: Elsevier BV
Date: 08-2022
Publisher: Wiley
Date: 16-10-2018
Abstract: Analysis of cellulose nanocrystals (CNCs) at low volume fractions in polymer nanocomposites through conventional electron microscopy still remains a challenge due to insufficient contrast between CNCs and organic polymer matrices. Herein, a methodology for enhancing the contrast of CNC, through atomic layer deposition (ALD) of alumina (Al
Publisher: American Chemical Society (ACS)
Date: 08-06-2021
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1GC02744A
Abstract: Lignin is an inexpensive raw material that can be utilised in polymer industry. This review critically appraises the recent progress and provides framework for future developments in lignin valorisation into rigid polyurethane foam.
Publisher: American Chemical Society (ACS)
Date: 07-01-2022
Publisher: Wiley
Date: 21-09-2023
DOI: 10.1002/PC.27743
Publisher: American Chemical Society (ACS)
Date: 04-02-2021
Publisher: American Chemical Society (ACS)
Date: 04-06-2019
Publisher: Elsevier BV
Date: 09-2022
Publisher: Wiley
Date: 14-08-2020
Publisher: Elsevier BV
Date: 04-2022
No related organisations have been discovered for Pratheep Kumar Annamalai.
Start Date: 2015
End Date: 12-2017
Amount: $345,500.00
Funder: Australian Research Council
View Funded Activity