Extending Durability of Lime Modified Clay Subgrades with Cement Stabilization

2007 ◽  
Author(s):  
Marshall B. Addison ◽  
Frank A. Polma
Keyword(s):  
Modified Clay ◽  
Cement Stabilization

Asymmetric mixed matrix membrane incorporating organically modified clay particle for gas separation

2014 ◽  
Vol 241 ◽  
pp. 495-503 ◽  
Author(s):  
A.K. Zulhairun ◽  
A.F. Ismail ◽  
T. Matsuura ◽  
M.S. Abdullah ◽  
A. Mustafa
Keyword(s):  
Gas Separation ◽  
Clay Particle ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Modified Clay ◽  
Organically Modified

Immobilization of fungal laccase onto a nonionic surfactant-modified clay material: application to PAH degradation

2015 ◽  
Vol 23 (5) ◽  
pp. 4024-4035 ◽  
Author(s):  
Yi-Tang Chang ◽  
Jiunn-Fwu Lee ◽  
Keng-Hua Liu ◽  
Yi-Fen Liao ◽  
Vivian Yang
Keyword(s):  
Nonionic Surfactant ◽  
Clay Material ◽  
Fungal Laccase ◽  
Modified Clay ◽  
Pah Degradation

Plasticizer effect and electronic diffusive behavior of polyaniline-modified clay in polystyrene nanocomposites

2017 ◽  
Vol 40 (1) ◽  
pp. 37-45
Author(s):  
Camila P. Pinto ◽  
Wagner M. Pachekoski ◽  
Carla Dalmolin ◽  
Daniela Becker
Keyword(s):  
Modified Clay ◽  
Diffusive Behavior

Use of polysaccharide based surfactants to stabilize organically modified clay particles aqueous dispersion

2013 ◽  
Vol 94 (1) ◽  
pp. 687-694 ◽  
Author(s):  
Manja Kurečič ◽  
Majda Sfiligoj Smole ◽  
Karin Stana-Kleinschek
Keyword(s):  
Aqueous Dispersion ◽  
Clay Particles ◽  
Modified Clay ◽  
Organically Modified

Bio-based Polyurethane-clay Nanocomposite Foams: Systheses and Properties

2009 ◽  
Vol 1188 ◽  
Author(s):  
Min Liu ◽  
Zoran S. Petrovic ◽  
Yijin Xu
Keyword(s):  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Cell Structure ◽  
Polyurethane Foams ◽  
Mechanical And Thermal Properties ◽  
Cell Content ◽  
Modified Clay ◽  
Rigid Polyurethane Foams ◽  
Nanocomposite Foams ◽  
Organically Modified

AbstractStarting from a bio-based polyol through modification of soybean oil, BIOH™ X-210, two series of bio-based polyurethanes-clay nanocomposite foams have been prepared. The effects of organically-modified clay types and loadings on foam morphology, cell structure, and the mechanical and thermal properties of these bio-based polyurethanes-clay nanocomposite foams have been studied with optical microscopy, compression test, thermal conductivity, DMA and TGA characterization. Density of nanocomposite foams decreases with the increase of clay loadings, while reduced 10% compressive stress and yield stress keep constant up to 2.5% clay loading in polyol. The friability of rigid polyurethane-clay nanocomposite foams is high than that of foam without clay, and the friability for nanofoams from Cloisite® 10A is higher than that from 30B at the same clay loadings. The incorporation of clay nanoplatelets decreases the cell size in nanocomposite foams, meanwhile increases the cell density; which would be helpful in terms of improving thermal insulation properties. All the nanocomposite foams were characterized by increased closed cell content compared with the control foam from X-210 without clay, suggesting the potential to improve thermal insulation of rigid polyurethane foams by utilizing organically modified clay. Incorporation of clay into rigid polyurethane foams results in the increase in glass transition temperature: the Tg increased from 186 to 197 to 204 °C when 30B concentration in X-210 increased from 0 to 0.5 to 2.5%, respectively. Even though the thermal conductivity of nanocomposite foams from 30B is lower than or equal to that of rigid polyurethane control foam from X-210, thermal conductivity of nanocomposite foams from 10A is higher than that of control at all 10A concentrations. The reason for this abnormal phenomenon is not clear at this moment; investigation on this is on progress.

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