Journal of Materials Science Research and Reviews https://journaljmsrr.com/index.php/JMSRR <p style="text-align: justify;"><strong>Journal of Materials Science Research and Reviews</strong> aims to publish high-quality papers in all areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, all engineering materials, nanostructured materials, nanocomposites, and biological and biomedical materials. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer-reviewed, open access INTERNATIONAL journal.</p> en-US contact@journaljmsrr.com (Journal of Materials Science Research and Reviews) contact@journaljmsrr.com (Journal of Materials Science Research and Reviews) Tue, 16 Jun 2020 08:16:02 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 Optimization of Nanoclay Loading on the Thermo-mechanical Behavior of Chemically Treated Jute Polyethylene Nanocomposites https://journaljmsrr.com/index.php/JMSRR/article/view/30134 <p>In this study, the jute polyethylene nanocomposites were developed using hot-press technique. In order to enhance the compatibility between fiber, polymer and nanofillers, chemically treated jute (with 3-isocyanatopropyltriethoxy silane) and organically modified nanoclay were used for the manufacturing of nanocomposites in this study. The effect of different types of montmorillonite (MMT) nanoclay on the thermal behaviourof prepared nanocomposites have been investigated. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were used to study fiber surface modification and surface morphology of nanocomposites, respectively. Tensile strength (TS) tensile modulus (TM) were considered to assess mechanical behavior. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were carried out to evaluate the thermal performances. It was found that the MMT nanoclay loaded nanocomposites shows higher tensile values and thermal stability than composite without nanoclay, andMMT-1.31PS loaded nanocomposite exhibited highest improvement among five types of MMT nanoclay used in this paper.</p> Md. Faruk Hossen, Md. Ali Asraf, Md. Kudrat- E-Zahan, Md. Masuqul Haque, Rausan Zamir, Choudhury M. Zakaria ##submission.copyrightStatement## https://journaljmsrr.com/index.php/JMSRR/article/view/30134 Tue, 16 Jun 2020 00:00:00 +0000 Comparative Anatomical Studies on the Wood and Bast Fibres of Gmelina arborea https://journaljmsrr.com/index.php/JMSRR/article/view/30137 <p><strong>Aim:</strong> Fibre serves primarily as support to the plant and its characteristics are essential for growth, being also a considerable factor for pulp and paper production. Debarking of tree logs is one of the steps in converting wood into chips suitable for pulping. However, the bark of logs also so contains certain amount of fibre known as the bast fibre. This study aimed to evaluate the applicability of bast fibre in pulp and paper making in comparison with the wood fibre.</p> <p><strong>Methods:</strong> The bark and wood of <em>Gmelina arborea</em> were collected from the same branch of different trees in the Botanical Garden of the Department of Plant Science and Biotechnology, University of Nigeria Nsukka, Nigeria. The samples were macerated and the vessel member was measured analyzing the fibre length, cell wall thickness, lumen diameter, and diameter.</p> <p><strong>Results:</strong> The wood fibre had significant higher length and lumen diameter while the bast fibre had thicker cell wall. Similarly wood fibre presented significantly higher coefficient of flexibility and slenderness ratio with an average of 0.718 ± 0.016 and 26.262 ± 1.518 while the Runkel ratio was higher in the bast fibre.</p> <p><strong>Conclusion:</strong> Wood fibres of this plant were more suitable for papermaking than bast fibres that lack the anatomical features required for this purpose.</p> G. C. Ajuziogu, E. O. Ojua ##submission.copyrightStatement## https://journaljmsrr.com/index.php/JMSRR/article/view/30137 Fri, 03 Jul 2020 00:00:00 +0000 Blue Light Blocking Ophthalmic Lenses and Their Benefits–A Review https://journaljmsrr.com/index.php/JMSRR/article/view/30135 <p>Light plays an important role in many functions of the human body. It improves visual acuity, contrast sensitivity and colour perception while improving mood, memory and maintaining hormonal balance through the regulation of the sleep-wake cycle. The low wavelength violet-blue light in the spectrum of 390-470 nm is high energy light and has been blamed for causing damage to the retina. Many studies have looked at how blue radiation affects eye health, visual acuity and circadian rhythm, especially in relation to the placement of filters that reduce the passage of blue light into the intraocular or ocular lens. In general, blue light improves contrast sensitivity and vision in intermediate lighting conditions, affects the sleep-wake cycle through melatonin secretion, and can cause several oxidative reactions in the retina resulting in the accumulation of photo deposits. Today it is well known that the spectrum in blue light radiation creates a wide range of health problems in every category of population, from premature infants to the elderly. This blue light spectrum is contained in the white light of Light Emitting Diode (LED) lamps, "economical" and any light source, such as that which comes from smartphones, computers, and many other devices whose light is a composition of colour spectra having the most powerful spectrum in blue. Blue blocker ophthalmic lenses provide a solution to all the above.</p> E. Pateras ##submission.copyrightStatement## https://journaljmsrr.com/index.php/JMSRR/article/view/30135 Mon, 22 Jun 2020 00:00:00 +0000 Anode Materials for Lithium-based Batteries: A Review https://journaljmsrr.com/index.php/JMSRR/article/view/30136 <p>Graphite as a conventional anode material has been unsuccessful in satisfying the requirements of future high-performance lithium-ion batteries due to its low theoretical specific capacity (372 mAh g−1) and low operating potential (~0.1 V). This has resulted in strong demand for new anode materials with high reversible capacity and stable cycling life. Thus, diverse new anode materials have been proposed as a replacement for graphite in recent years. The novel materials reviewed in this study include transition-metal compounds, silicon-based compounds, and carbon-based compounds. The prospects of these materials in developing high-performance lithium-ion batteries for electric vehicles and large-scale energy storage applications are also highlighted.</p> Ayodele O. Soge ##submission.copyrightStatement## https://journaljmsrr.com/index.php/JMSRR/article/view/30136 Fri, 26 Jun 2020 00:00:00 +0000