Chemical Engineering
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State of the art, reconstruction of damaged zones: transitory stresses effect and factors controlling rock mass stability
(GEOMATE, 2018)For the last three decades, many countries in the Middle East have been bombarded by wars. In these damaged zones, removing of destruction debris and the effect of the direct impact of blasts might trigger rock mass ... -
Application of nanomaterials to enhance microstructure and mechanical properties of concrete
(SPC, 2018)The advances of sustainable construction and the green building movement of the past decade have encouraged comprehensive assessment of building materials and construction practices worldwide. With superior fire resistance, ... -
A Novel Global Warming Solution: Use of Flue Gas to Produce Urea
(EDP Sciences, 2018)Urea is a nitrogenous organic compound which is widely used as a fertilizer and in the agricultural industry. On an industrial scale, urea can be manufactured from the reaction of carbon dioxide and ammonia. The goal of ... -
Investigating the Potential Use of Ionic Liquids in Pre-Treatment Application for Water Desalination
(EDP Sciences, 2018)The world has been noticing a quickening advancement over the last decades in terms of irrigated agriculture, social, industrial, and economical perspectives; followed by a huge increment in the water demand. Therefore, ... -
Kimya Sanayinde Su Tasarrufu İçin Karar Destek Sistemi
(2010)Özet Bu bildiride, Türkiye’nin sanayileşmiş bölgelerinden Gebze’de bulunan bir temizlik kimyasalları fabrikası için geliştirdiğimiz ve 7 ay boyunca kullanılarak test edilen bir Karar Destek Sistemi (KDS) tanıtılacak ve ... -
Microwave assisted reactions in organic chemistry: A review of recent advances
(Canadian Center of Science and Education, 2012-11-20)Revolution in organic compound synthesis has been promoted by microwave assisted organic syntheses (MAOS) by which small molecules are built up into large polymers in a fraction of time. The need for different organic compound ... -
Materials and Design – The art and science of material selection in product design
(2002)Materials are the stuff of design. From the very beginning of human history, materials have been taken from the natural world and shaped, modified, and adapted for everything from primitive tools to modern electronics. ... -
Surface Properties of Superhydrophobic Coatings for Stone Protection,
(2009)Superhydrophobic films are produced by a simple and low cost method. Silica (SiO(2)) nanoparticles are dispersed in solutions of Rhodorsil 224, a commercial poly(alkyl siloxane) which is used for the protection of outdoor ... -
Thermal and colloidal behavior of amine-treated clays: The role of amphiphilic organic cation concentration
(Elsevier, 2007-11-15)The modification of sodium montmorillonite (NaMMT) through the insertion of amphiphilic hexadecylammonium cations into the clay's interlayer spaces has been studied. Alkylammonium concentrations equivalent to 0.15–3.00 ... -
Aggregation phenomena in the suspension polymerization of VCM
(Springer, 1989-07-25)In the suspension polymerization of VCM, insoluble polymer particles are formed inside the monomer droplets. The growth and aggregation of these particles are responsible for important polymer properties, such as porosity. ... -
The effect of surface chemistry and nanoclay loading on the microcellular structure of porous poly(d,l lactic acid) nanocomposites
(Elsevier, 2011-07)Three series of polymer nanocomposites, based on poly(d,l lactic acid) (PDLLA) and organically modified montmorillonite, were prepared by the melt and the solution intercalation technique. The first series was prepared by ... -
Structure–property relationships in isotactic polypropylene/multi-walled carbon nanotubes nanocomposites
(Elsevier, 2010-02)In this work, the influence of multi-walled carbon nanotubes (MWCNT) on electrical, thermal and mechanical properties of CNT reinforced isotactic polypropylene (iPP) nanocomposites is studied. The composites were obtained ... -
Superhydrophobic films for the protection of outdoor cultural heritage assets
(Springer, 2009)A very simple method that can be used to impart superhydrophobicity to stone surfaces of monuments using common and low-cost materials that are already employed or are easy to be found by conservators is presented. A ... -
Morphological, thermal, and mechanical characteristics of polymer/layered silicate nanocomposites: The role of filler modification level
(Wiley online, 2009-06-20)Composite materials consisting of poly(L‐lactic acid) and montmorillonite modified to a different extent, using various contents of hexadecylammonium cation, were prepared by the solution intercalation method. Investigation ... -
Surface Properties of Superhydrophobic Coatings for Stone Protection
(Springer, 2009)Abstract Superhydrophobic films are produced by a simple and low cost method. Silica (SiO(2)) nanoparticles are dispersed in solutions of Rhodorsil 224, a commercial poly(alkyl siloxane) which is used for the protection ... -
“Design and Fabrication of supported-metal catalysts through nanotechnology”. Included in the book titled “Microelectronics, Microsystems and Nanotechnology
(World Scientific, 2001)A design and a solid state fabrication scheme are proposed for the production of supported-metal catalysts micrometer-long and nanometer-wide. Ni catalysts supported on SiO2 have been fabricated according to the proposed ... -
Nanofibrous morphology of electrospun chitosan nanocomposites reinforced with WS2 nanotubes: A design-of-experiments study
(Sage Publications, 2017-08-09)Chitosan nanofibers reinforced with tungsten disulfide inorganic nanotubes (INT-WS2) were fabricated in this study. The aim was to investigate the effect of the material parameters and the electrospinning process parameters ... -
Photogated humidity-driven motility
(Macmillan Publishers Limited, 2015-06-11)Hygroinduced motion is a fundamental process of energy conversion that is essential for applications that require contactless actuation in response to the day–night rhythm of atmospheric humidity. Here we demonstrate that ... -
Carbon nanofibers from renewable bioresources (lignin) and a recycled commodity polymer [poly(ethylene terephthalate)]
(Wiley online, 2016-06-06)Utilizing inexpensive biorenewable and waste raw materials for the production of carbon nanofibers can pave the way for lowering their manufacturing cost. In this research, lignin is combined with recycled poly(ethylene ... -
High-pressure electrical resistivity and Mössbauer spectroscopic studies on narrow band Co0.8Fe0.2S2 nanoparticles up to 8 GPa
(Taylor & Francis, 2013-07-13)Pyrite-structured Co0.8Fe0.2S2 colloid nanoparticles, synthesized using solution method with particle distribution around 3–4 nm determined by transmission electron microscope, were studied under high pressure up to 8 GPa ... -
“Effectiveness of chitosan as antimicrobial agent in LDPE/CS composite films as minced poultry meat packaging materials
(scimagoj, 2014)Low density polyethylene (LDPE)/chitosan (CS) composites and stratified composites have been tested for minced poultry meat packaging according to well-known standard methods used in food industry. It has been established ... -
On the Toughness Response of iPP and sPP/MWNT Nanocomposites
(Wiley Online Library, 2013-07-22)Nanocomposites based in polypropylene (both syndiotactic and isotactic) and multiwall carbon nanotubes (MWNTs) directly blended in the melt via micro‐extrusion, were studied. The aim was to determine the role of MWNTs, on ... -
Impact of environmental scanning on the organisational performance of local authorities in Malaysia
(Emerald Group Publishing Limited, 2013)Purpose – Previous studies on scanning behaviour focused mainly on the performance of the private sector, leaving the public sector, especially local authorities (LAs), largely understudied. Primarily, this paper aims to ... -
Photomechanical and Photochromic Behavior of a Molecule Containing Multiple Photoactive Groups
(Croatica Chemica Act, 2014)Photomechanical and photochromic activities are reported for single crystals of a new ultiresponsive material 2,4-di-tert-butyl-6-((E)-((4-((E)- phenyldiazenyl)phenyl)imino)methyl) phenol (Azim1), with two photoactive ... -
Controlled Synthesis of Poly(acrylamide-co-sodium acrylate) Copolymer Hydrogel Microparticles in a Droplet Microfluidic Device for Enhanced Properties
(American Chemical Society, 2017)In this study, monodisperse poly(acrylamide-co-sodium acrylate) hydrogel microparticles with a controlled water absorbance capacity were synthesized in a droplet microfluidic device that can be used for enhanced oil recovery ... -
Dielectric and Thermomechanical Properties of Polypropylene/Multi-Walled Carbon Nanotubes Nanocomposites
(Materials Research Society, 2007)The purpose of this work is to examine the dielectric, electrical and thermo-mechanical properties of multi-walled carbon nanotubes (MWCNT) filled polypropylene nanocomposites formed by melt-mixing. To that aim dielectric ... -
Oxidation of Rosalva to Costenal on Silver Catalyst in Microstructured Reactors
(2012-09)Oxidation of rosalva (9-decen-1-ol) to costenal (9-decen-1-al) was carried out in silicon-glassmicroreactors on silver catalysts at the temperature range 420-475°C. Reactors with increasedsurface area where silver was ... -
POLYOLEFIN-BASED NANOCOMPOSITES: THE ROLE OF COMPATIBILIZER ON THE MECHANICAL PROPERTIES OF WS2 NANOTUBES-REINFORCED POLYPROPYLENE
(American Institute of Chemical Engineers (AIChE), 2013)Polypropylene (PP) is one of the most widely used engineering polyolefins and intensive research efforts are made currently for tailoring its final properties through the preparation of its nanocomposites. PP-nanocomposites ... -
DESIGN AND FABRICATION OF SUPPORTED-METAL CATALYSTS THROUGH NANOTECHNOLOGY
(World Scientific Publishing, 2001-10)A design and a solid state fabrication scheme are proposed for the production of supported-metal catalysts micrometer-long and nanometer-wide. Ni catalysts supported on SiO2 have been fabricated according to the proposed ... -
Linear Metal Nanostructures and Size Effects of Supported Metal Catalysts
(American Association for the Advancement of Science, 1992-11-20)Nickel metal catalysts composed of nanometer by micrometer strips have been produced with solid-state microfabrication techniques. The strips are actually the edges of nickelcatalyst thin films, which are sandwiched between ... -
Nanostructure vs. microstructure: Morphological and thermomechanical characterization of poly(l-lactic acid)/layered silicate hybrids
(Elsevier, 2007-03-13)Nano- and micro-composites of poly(l-lactic acid) (PLLA) with various loadings of natural and hexadecylamine-modified montmorillonite were prepared by the solvent casting method to study the effect of nanostructure on the ... -
Surfactant-induced morphology and thermal behavior of polymer layered silicate nanocomposites
(iopscience, 2007)Poly(L-lactic acid) nanocomposites were prepared by the addition of montmorillonite modified with various loadings of hexadecylammonium cation. The influence of alkylammonium on the morphology and surface charge of the ... -
Polymer-Silica nanoparticles composite films as protective coatings for stone-based monuments
(IOPscience, 2007)The decrease of surface energy of mineral substrates similar to those used in many stone monuments of cultural heritage by the application of protective polymer coatings along with the simultaneous increase of their surface ... -
Porous poly(l-lactic acid) nanocomposite scaffolds prepared by phase inversion using supercritical CO2 as antisolvent
(Elsevier, 2007-10-05)Nanohybrids were fabricated from a poly(l-lactic acid) solution loaded with various concentrations of organically modified montmorillonite. Investigation of the produced composites' morphology by X-ray diffraction analysis, ... -
Biodegradable polymer nanocomposites: The role of nanoclays on the thermomechanical characteristics and the electrospun fibrous structure
(Elsevier, 2008-01-08)Polymer nanocomposites, based on poly(e-caprolactone) (PCL) and organically modified montmorillonite, were prepared by the solution intercalation technique. The thermal stability of the prepared materials was analyzed by ... -
Superhydrophobic Composite Films Produced on Various Substrates
(American Chemical Society, 2008-10-07)Hydrophilic silica (SiO2) nanoparticles were dispersed in solutions of poly(methyl methacrylate) (PMMA) and in solutions of a commercial poly(alkyl siloxane) (Rhodorsil 224), and the suspensions were sprayed on glass ... -
Fabrication of super-hydrophobic surfaces for enhanced stone protection
(Elsevier, 2008-11-13)In the current study, we demonstrate that the modification of a commercial siloxane protective composition by the addition of silica nanoparticles substantially enhances its protective efficiency and renders the treated ... -
Nanofibrous Structure of Nonwoven Mats of Electrospun Biodegradable Polymer Nanocomposites—A Design of Experiments (DoE) Study
(American Chemical Society, 2009-05-06)The morphology of nanofibrous nonwoven mats of an electrospun biodegradable polymer nanocomposite was studied in order to define the material and process parameter settings capable of giving the targeted nanofibrous structure ... -
Morphological, thermal, and mechanical characteristics of polymer/layered silicate nanocomposites: The role of filler modification level
(Wiley Online Library, 2009-04-20)Composite materials consisting of poly(L-lactic acid) and montmorillonite modified to a different extent, using various contents of hexadecylammonium cation, were prepared by the solution intercalation method. Investigation ... -
Surface Properties of Superhydrophobic Coatings for Stone Protection
(scientific.Net, 2009-09)Superhydrophobic films are produced by a simple and low cost method. Silica (SiO2) nanoparticles are dispersed in solutions of Rhodorsil 224, a commercial poly(alkyl siloxane) which is used for the protection of outdoor ... -
Superhydrophobic films for the protection of outdoor cultural heritage assets
(Springer, 2009-04-26)A very simple method that can be used to impart superhydrophobicity to stone surfaces of monuments using common and low-cost materials that are already employed or are easy to be found by conservators is presented. A ... -
Surface characterization of poly(2,2,3,3,3-pentafluoropropyl methacrylate) by inverse gas chromatography and contact angle measurements
(Elsevier, 2009-11-02)A fluorinated methacrylic homopolymer, poly(2,2,3,3,3-pentafluoropropyl methacrylate) (PPFPMA) was synthesized by a free radical polymerization reaction. The dispersive component of the surface energy ( ) of PPFPMA was ... -
Structure–property relationships in isotactic polypropylene/multi-walled carbon nanotubes nanocomposites
(Elsevier, 2009-10-23)In this work, the influence of multi-walled carbon nanotubes (MWCNT) on electrical, thermal and mechanical properties of CNT reinforced isotactic polypropylene (iPP) nanocomposites is studied. The composites were obtained ... -
PBSA/layered silicate nanocomposites and the role of nanoclay on their electrospun fibrous structure
(Inderscienceonline, 2010)Polymer nanocomposites based on poly (butylene succinate-co-butylene adipate) (PBSA) with various concentrations of organically modified montmorillonite were fabricated by the solvent casting technique. The morphology of ... -
Thermodynamic characterization of poly(2,2,3,3,3-pentafluoropropyl methacrylate)
(Wiley Online Library, 2010-07-08)The thermodynamic characterization of a fluorinated methacrylic homopolymer was conducted by means of inverse gas chromatography (IGC), at infinite dilution. The homopolymer under study, poly(2,2,3,3,3-pentafluoropropyl ... -
Morphological, Thermal, and Electrical Characterization of Syndiotactic Polypropylene/Multiwalled Carbon Nanotube Composites
(Taylor and Francis Online, 2010-08-10)In this work, syndiotactic polypropylene/multiwalled carbon nanotubes (MWCNT) nanocomposites, in various concentrations, were produced using melt mixing. The influence of the addition of MWCNT on the morphology, crystalline ... -
Solution casting versus melt compounding: effect of fabrication route on the structure and thermal behavior of poly(l-lactic acid) clay nanocomposites
(Springer, 2010-07-07)Poly(l-lactic acid) (PLLA) nanocomposites containing various loadings of organo-modified montmorillonite were prepared via twin screw extrusion and solution casting in order to investigate the effect of processing route ... -
Thermal degradation kinetics and isoconversional analysis of biodegradable poly(3-hydroxybutyrate)/organomodified montmorillonite nanocomposites
(Elsevier, 2011-02-20)Poly(3-hydroxybutyrate) (PHB)/organically modified clay nanocomposites were prepared by the melt mixing method and were characterized using wide-angle X-ray diffraction. Their thermal degradation kinetics was investigated ... -
The effect of surface chemistry and nanoclay loading on the microcellular structure of porous poly(d,l lactic acid) nanocomposites
(Elsevier, 2011-07)Three series of polymer nanocomposites, based on poly(d,l lactic acid) (PDLLA) and organically modified montmorillonite, were prepared by the melt and the solution intercalation technique. The first series was prepared by ... -
Optimizing the nanofibrous morphology of electrospun poly[(butylene succinate)- co-(butylene adipate)]/clay nanocomposites and revealing the effect of the fibre nano-dimension on the attained material properties
(Wiley Online Library, 2011-02-10)Electrospun mats of biodegradable polymer/clay nanocomposites were prepared in order to investigate the qualitative and quantitative correlations between electrospinning-related parameters and the fibrous morphology of the ...
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