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Showing 1 to 20 of 45 for “"nanoclay"”.
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Nanoclay-Based Solid-Amine Adsorbents for Carbon Dioxide Capture
… sorbent developed here is composed of a nanoclay (montmorillonite), commonly used in the production of polymer nanocomposites, grafted with commercially available amines. (3-aminopropyl) trimethoxysilane (APTMS) was chemically grafted to the edge hydroxyl groups of the clay. While another …
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Fatigue performance of nanoclay filled glass fiber reinforced hybrid composite laminate
Submitted in fulfilment of the requirements for the degree of Master of Engineering: Mechanical Engineering, Durban University of Technology, Durban, South Africa, 2017.
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Alkaline durability tests for E-glass/vinyl ester-reinforced polymer with nanoclay
… with the addition of 1 wt% of CloisiteRTM 10A nanoclay. These samples were aged in an alkaline solution (pH = 13.2) with 3560N (800-lbs), 2225N (500-lbs) and 885N (200-lbs) of sustained load, which were 50%, 31% and 12.5% of the tensile strength, respectively. Time to failure or tensile …
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Moisture diffusion through neat and glass-fiber reinforced vinyl ester resin containing nanoclay
… the diffusivity decreased due to the presence of nanoclay in polymer. SEM images of FRPs were taken after two months of immersion in distilled water at room temperature. The SEM images revealed that the presence of clay indeed protected the glass-fibers. Effect of temperature was studied by …
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The modelling of processing conditions for polypropylene-nanoclay integral hinges at high heat exposure
… towards quality performance of polypropylene-nanoclay integral hinges, exposed to high heat temperature. The assessment of hinges’ quality performance analyses was translated as the signal to noise ratio values for ultimate tensile strength, shrinkage and warpage. This research had adopted …
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The Effect of Matrix Molecular Weight on the Dispersion of Nanoclay in Unmodified High Density Polyethylene
The effect of molecular weight on the dispersion of relatively polar montmorillonite (MMT) in non polar, unmodified high density polyethylene (HDPE) was examined. Polymer layered silicate (PLS) nanocomposites were compounded using three unmodified HDPE matrices of differing molecular weight and an …
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Process for Improving the Exfoliation and Dispersion of Nanoclay Particles into Polymer Matrices Using Supercritical Carbon Dioxide
… in this work to help exfoliate and disperse nanoclay into the polymer matrices at high clay content. The process involves the use of a pressurized CO₂ chamber to assist in the exfoliation and delivery of the clay into a stream of polypropylene (PP) melt within the extruder. This CO₂ method …
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The Mechanical Thermal and Microstructural Behaviors of the Strip Silicates Reinforced Epoxy-based Nanocomposites
… samples with compositions from 0wt% to 8wt% nanoclay were prepared by mechanical stirring and then casting to mold dog-bone shape samples for tensile and other tests. A gradual trend of changes upon mechanical, thermal and microstructural behaviors were investigated. Introduction of strip …
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Processing, structure and thermo-mechanical properties of reclaimed nanoclay, and its application in polyamide 6 and low-density polyethylene nanocomposites.
Oil-based mud (OBM) wastes are generated every year all over the world, and remain a serious challenge for the oil and gas industry. The potential solution for this global problem is either to destroy these hazardous chemicals completely - a significant challenge - or to use/utilise them for …
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Removal of Nitrates from Stormwater Using Nanoclays
… This study analyzed the ability of several nanoclays to remove nitrate in runoff and determined the feasibility of using them as a soil supplement for LID implementation. Six different nanoclays and HCl-treated clays were compared (pre-modified trimethyl stearyl ammonium nanoclay, …
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The effect of injection molding processing conditions and fiber content towards the properties of polypropylene-nanoclay nanocomposites blend with gigantochloa scortechinii fibers
… modified polypropylene oligomers (PPgMA) and nanoclay according to fixed measure. Mixing process was performed using a twin screw brabender mixer machine. Next, forms of grain were produced using Plastic Granulator machine for use in the injection moulding process. In order to obtain the data …
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Influences on nanocomposite structural performance: experimental study on materials processing and bonding
… achieve full dispersion and exfoliation of nanoclay without<br/>inducing air into the composite system. Two mechanical processes were used for<br/>comparison; a high shear rotary mixing and a laboratory bead mill. Microscopic<br/>observations of the resin before curing shows agglomerated …
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Epoxy-clay nanocomposite for carbon fiber reinforced polymer applications
… Moreover epoxy resin systems incorporating nanoclay (epoxy-clay nanocomposite) have recently been reported to generally display significant improvements in structural properties over neat epoxy. This research examines the possible control of creep of epoxy using nanoclay. A multi-scale …
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The Manufacture and Mechanical Properties of Poly(ethylene terephthalate) Fibers Filled with Organically-Modified Montmorillonite
… on PET fibers filled with montmorillonite (MMT) nanoclay examined fiber drawability at temperatures above the glass transition. Therefore, the primary objective of this research was to determine 1) if PET nanocomposite fibers could be drawn to finer diameters and 2) whether drawing imparted …
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Effects of Using Clay Nanoparticles as a Soil Amendment to Remove Nitrate from Stormwater
… efficiencies. The use of clay nanoparticles, or nanoclays, can maximize the amount of surface area available for adsorbance potentially increasing the amount of nitrate removed from water. The goal of this study was to identify a nanoclay with high adsorbance by testing its nitrate removal …
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Fabrication of zein nanostructure
… approaches were focused: the polymer nanoclay nanocomposite technique where the nanocomposite structures were created in the zein matrix, and the soft lithography and the microfluidic devices where the micro and nanopatterns were created on the zein film surfaces. The polymer nanoclay …
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Supercritical carbon dioxide-processed resorbable polymer nanocomposites for bone graft substitute applications
… organically modified Montmorillonite clay (nanoclay). scCO<sub>2</sub> processing simultaneously disperses the nanoclay throughout the polymeric matrix, while imparting a porous morphology to the construct conducive to facilitating cellular infiltration and neoangiogenesis, which are …
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Polymer/Clay Nanocomposites as Barrier Materials Used for VOC Removal
… method of incorporation of a silicate layered nanoclay into a polymer matrix can affect the barrier properties of the pristine polymer in order to decrease the transport of volatile organic compounds (VOC) in indoor air. Building materials are a primary source for VOCs. These emissions are a …
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Effect of nano- fillers on tensile properties of biopolymer films
… (CNC), CaCO3 nanoparticles, hydrophilic nanoclay and hydrophobic nanoclay were separately added as fillers to the polymers, konjac glucomannan (KGM), hydroxypropyl methylcellulose (HPMC), and zein to investigate their effect on tensile properties of composite films. Tensile properties …
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