The Experts below are selected from a list of 7281 Experts worldwide ranked by ideXlab platform
Yongjin Li - One of the best experts on this subject based on the ideXlab platform.
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effects of surface structure and morphology of Nanoclays on the properties of jatropha curcas oil based waterborne polyurethane clay nanocomposites
Industrial & Engineering Chemistry Research, 2016Co-Authors: Lingyuan Liao, Yin Wang, X Q Li, Heqing Fu, Yongjin LiAbstract:Three kinds of Nanoclays with different structure and morphology were modified by γ-aminopropyltriethoxysilane (APTES) and then incorporated into Jatropha oil-based waterborne polyurethane (WPU) matrix via in situ polymerization. The effects of surface structure and morphology of Nanoclay on the degree of silylation were characterized by Fourier transform infrared spectroscopy (FTIR) and thermogravimetry analysis (TGA). The results showed that the montmorillonite (MT) with abundant hydroxyl group structure and platelet-like morphology had the highest degree of silylation, while the modified halloysite nanotubes (HT) had the lowest grafting ratio. The effects of different silylated clays on the properties of WPU/clay nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), TGA, dynamic thermomechanical analysis (DMA) and tensile testing machine. SEM images showed that all silylated clays had good compatibility with WPU and were uniformly dispersed into the polymer m...
T. P. Mohan - One of the best experts on this subject based on the ideXlab platform.
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resin infusion analysis of Nanoclay filled glass fiber laminates
Composites Part B-engineering, 2014Co-Authors: Krishnan Kanny, T. P. MohanAbstract:Abstract This paper focuses on the resin flow characteristics of Nanoclay filled glass fiber laminates processed by Vacuum Assisted Resin Infusion Molding (VARIM). Laminates with varying quantities of Nanoclays (0–5 wt.%) were prepared and the effect of these Nanoclays on the epoxy resin flow characteristics was studied. It was found that the flow rate of resin continuously decreased as Nanoclay content continuously increased. The reduction in the flow rate was attributed to the rate of change of curing and the subsequent change in viscosity of the Nanoclay filled resin. Analysis of infusion process by Darcy’s law show that the permeability of the fiber decreased in the Nanoclay filled resin system. Nanoclay filled laminates show improved static and dynamic mechanical properties than that of unfilled resin composites.
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water barrier properties of Nanoclay filled sisal fibre reinforced epoxy composites
Composites Part A-applied Science and Manufacturing, 2011Co-Authors: T. P. Mohan, Krishnan KannyAbstract:Abstract This paper deals with the water mass uptake of Nanoclay and sisal fibre reinforced polymer composites. Nanoclays at 1 wt.%, 3 wt.% and 5 wt.% were filled in sisal fibre reinforced epoxy polymer and placed in a water medium. The result shows a dramatic decrease in water mass uptake of Nanoclay filled composites. The water transmission rate (WTR) for 5 wt.% Nanoclay filled composites reduced by three times when compared to unfilled composites. Hence the role of Nanoclay on reducing water uptake is studied and results are compared with microclay filled composites. Tensile, dynamic mechanical analysis (DMA) and wear studies were conducted for these composites before and after placing in the water medium. The properties decreased much for microclay filled and unfilled composites, however they improved significantly for Nanoclay filled composites.
Krishnan Kanny - One of the best experts on this subject based on the ideXlab platform.
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resin infusion analysis of Nanoclay filled glass fiber laminates
Composites Part B-engineering, 2014Co-Authors: Krishnan Kanny, T. P. MohanAbstract:Abstract This paper focuses on the resin flow characteristics of Nanoclay filled glass fiber laminates processed by Vacuum Assisted Resin Infusion Molding (VARIM). Laminates with varying quantities of Nanoclays (0–5 wt.%) were prepared and the effect of these Nanoclays on the epoxy resin flow characteristics was studied. It was found that the flow rate of resin continuously decreased as Nanoclay content continuously increased. The reduction in the flow rate was attributed to the rate of change of curing and the subsequent change in viscosity of the Nanoclay filled resin. Analysis of infusion process by Darcy’s law show that the permeability of the fiber decreased in the Nanoclay filled resin system. Nanoclay filled laminates show improved static and dynamic mechanical properties than that of unfilled resin composites.
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water barrier properties of Nanoclay filled sisal fibre reinforced epoxy composites
Composites Part A-applied Science and Manufacturing, 2011Co-Authors: T. P. Mohan, Krishnan KannyAbstract:Abstract This paper deals with the water mass uptake of Nanoclay and sisal fibre reinforced polymer composites. Nanoclays at 1 wt.%, 3 wt.% and 5 wt.% were filled in sisal fibre reinforced epoxy polymer and placed in a water medium. The result shows a dramatic decrease in water mass uptake of Nanoclay filled composites. The water transmission rate (WTR) for 5 wt.% Nanoclay filled composites reduced by three times when compared to unfilled composites. Hence the role of Nanoclay on reducing water uptake is studied and results are compared with microclay filled composites. Tensile, dynamic mechanical analysis (DMA) and wear studies were conducted for these composites before and after placing in the water medium. The properties decreased much for microclay filled and unfilled composites, however they improved significantly for Nanoclay filled composites.
Lingyuan Liao - One of the best experts on this subject based on the ideXlab platform.
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effects of surface structure and morphology of Nanoclays on the properties of jatropha curcas oil based waterborne polyurethane clay nanocomposites
Industrial & Engineering Chemistry Research, 2016Co-Authors: Lingyuan Liao, Yin Wang, X Q Li, Heqing Fu, Yongjin LiAbstract:Three kinds of Nanoclays with different structure and morphology were modified by γ-aminopropyltriethoxysilane (APTES) and then incorporated into Jatropha oil-based waterborne polyurethane (WPU) matrix via in situ polymerization. The effects of surface structure and morphology of Nanoclay on the degree of silylation were characterized by Fourier transform infrared spectroscopy (FTIR) and thermogravimetry analysis (TGA). The results showed that the montmorillonite (MT) with abundant hydroxyl group structure and platelet-like morphology had the highest degree of silylation, while the modified halloysite nanotubes (HT) had the lowest grafting ratio. The effects of different silylated clays on the properties of WPU/clay nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), TGA, dynamic thermomechanical analysis (DMA) and tensile testing machine. SEM images showed that all silylated clays had good compatibility with WPU and were uniformly dispersed into the polymer m...
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Effects of Surface Structure and Morphology of Nanoclays on the Properties of Jatropha Curcas Oil-Based Waterborne Polyurethane/Clay Nanocomposites
2016Co-Authors: Lingyuan Liao, Yin WangAbstract:Three kinds of Nanoclays with different structure and morphology were modified by γ-aminopropyltriethoxysilane (APTES) and then incorporated into Jatropha oil-based waterborne polyurethane (WPU) matrix via in situ polymerization. The effects of surface structure and morphology of Nanoclay on the degree of silylation were characterized by Fourier transform infrared spectroscopy (FTIR) and thermogravimetry analysis (TGA). The results showed that the montmorillonite (MT) with abundant hydroxyl group structure and platelet-like morphology had the highest degree of silylation, while the modified halloysite nanotubes (HT) had the lowest grafting ratio. The effects of different silylated clays on the properties of WPU/clay nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), TGA, dynamic thermomechanical analysis (DMA) and tensile testing machine. SEM images showed that all silylated clays had good compatibility with WPU and were uniformly dispersed into the polymer matrix. WPU/SMT exhibited the best thermal properties owing to its intercalated structure. Dynamic thermomechanical analysis (DMA), atomic force microscope (AFM), and water contact angle results demonstrated that the silylated Nanoclays enhanced the degree of microphase separation, surface roughness, and hydrophobicity of WPU/clay nanocomposites
Yin Wang - One of the best experts on this subject based on the ideXlab platform.
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effects of surface structure and morphology of Nanoclays on the properties of jatropha curcas oil based waterborne polyurethane clay nanocomposites
Industrial & Engineering Chemistry Research, 2016Co-Authors: Lingyuan Liao, Yin Wang, X Q Li, Heqing Fu, Yongjin LiAbstract:Three kinds of Nanoclays with different structure and morphology were modified by γ-aminopropyltriethoxysilane (APTES) and then incorporated into Jatropha oil-based waterborne polyurethane (WPU) matrix via in situ polymerization. The effects of surface structure and morphology of Nanoclay on the degree of silylation were characterized by Fourier transform infrared spectroscopy (FTIR) and thermogravimetry analysis (TGA). The results showed that the montmorillonite (MT) with abundant hydroxyl group structure and platelet-like morphology had the highest degree of silylation, while the modified halloysite nanotubes (HT) had the lowest grafting ratio. The effects of different silylated clays on the properties of WPU/clay nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), TGA, dynamic thermomechanical analysis (DMA) and tensile testing machine. SEM images showed that all silylated clays had good compatibility with WPU and were uniformly dispersed into the polymer m...
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Effects of Surface Structure and Morphology of Nanoclays on the Properties of Jatropha Curcas Oil-Based Waterborne Polyurethane/Clay Nanocomposites
2016Co-Authors: Lingyuan Liao, Yin WangAbstract:Three kinds of Nanoclays with different structure and morphology were modified by γ-aminopropyltriethoxysilane (APTES) and then incorporated into Jatropha oil-based waterborne polyurethane (WPU) matrix via in situ polymerization. The effects of surface structure and morphology of Nanoclay on the degree of silylation were characterized by Fourier transform infrared spectroscopy (FTIR) and thermogravimetry analysis (TGA). The results showed that the montmorillonite (MT) with abundant hydroxyl group structure and platelet-like morphology had the highest degree of silylation, while the modified halloysite nanotubes (HT) had the lowest grafting ratio. The effects of different silylated clays on the properties of WPU/clay nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), TGA, dynamic thermomechanical analysis (DMA) and tensile testing machine. SEM images showed that all silylated clays had good compatibility with WPU and were uniformly dispersed into the polymer matrix. WPU/SMT exhibited the best thermal properties owing to its intercalated structure. Dynamic thermomechanical analysis (DMA), atomic force microscope (AFM), and water contact angle results demonstrated that the silylated Nanoclays enhanced the degree of microphase separation, surface roughness, and hydrophobicity of WPU/clay nanocomposites
