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Prikaz rezultata 151-160 od 223
Moisture absorption characteristics and effects on mechanical properties of Kolon/epoxy composites
(Current Applied Physics, 2021)
Para-aramid fibers (Kolon) are high performance polymeric fibers characterized by their high tenacity and impact resistance. They are used for the soft body armor structures in ballistics. In this study, the testing specimens ...
Hydrometallurgical recovery of tin and lead from waste printed circuit boards (wpcbs): limitations and opportunities
(Croatian Metallurgical Soc, Zagreb, 2016)
In this paper, possibility for selective Pb and Sn recovery, using three different solutions of NaOH, HCl and HNO3, from WPCBs containing low concentrations of Pb and Sn is presented. According to obtained results, over ...
Batch and semicontinuous production of L-ascorbyl oleate catalyzed by CALB immobilized onto Purolite (R) MN102
(Elsevier, Amsterdam, 2017)
L-Ascorbyl oleate is recognized as efficient liposoluble antioxidant and biosurfactant which can be synthesized by using immobilized lipases as catalysts in organic media. However, development of economical production ...
Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration
(Transport in Porous Media, 2021)
A novel surface-flow filter has been designed to take advantage of a combination of both diffusion and lateral flow permeation, since active coatings, even if porous, tend to be far less permeable than through-flow constructs. ...
Antibacterial activity of thymol/carvacrol and clinoptilolite composites prepared by supercritical solvent impregnation
(Journal of Porous Materials, 2021)
Novel composites based on natural zeolite-clinoptilolite and monoterpene phenols-thymol and carvacrol were prepared by supercritical solvent impregnation (SSI) in supercritical carbon dioxide (scCO(2)) at 30 MPa and 35 ...
Mechanical Properties of Biomass-derived Silica Nanoparticles Reinforced PMMA Composite Material
(Science of Sintering, 2022)
Rice husk was used to produce silica particles, which were then used to reinforce the polymer matrix. The synthesized SiO2 particles were characterized using X-ray diffraction, Fourier transforms infrared spectroscopy ...
A new approach to compatibilization study of EVA/PMMA polymer blend used as an optical fibers adhesive: Mechanical, morphological and thermal properties
(Elsevier Sci Ltd, Oxford, 2018)
Mechanical, morphological and thermal properties of optical fiber adhesives, based on poly(ethylene-co-vinyl acetate) (EVA) with 18 and 40% of vinyl acetate, polymer blend of EVA/poly(methyl methacrylate) (PMMA), and graft ...
Mesomorphism of novel stilbene-based bent-core liquid crystals
(Liquid Crystals, 2021)
A series of asymmetric bent-core liquid crystals, bearing the stilbene moiety in the side wing, was synthesised and characterised. Structural modifications of the non-stilbene wing resulted in formation of various mesophases. ...
Amino-modified kraft lignin microspheres as a support for enzyme immobilization
(Royal Society of Chemistry, 2020)
In this research, it has been demonstrated that amino-modified microspheres (A-LMS) based on bio-waste derived material, such as kraft lignin, have good prospects in usage as a support for enzyme immobilization, since ...
Preparation and Characterization of Silver-Loaded Hemp Fibers with Antimicrobial Activity
(Korean Fiber Soc, Seoul, 2014)
The objective of this research was to impart antimicrobial properties to hemp fibers by incorporation of silver ions in hemp fibers by chemisorption. Sorption properties of hemp fibers were improved by non-selective oxidation ...