The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform
Toshiyuki Tamai - One of the best experts on this subject based on the ideXlab platform.
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Sol−Gel Reaction in Acrylic Polymer Emulsions: The Effect of Particle Surface Charge
Langmuir : the ACS journal of surfaces and colloids, 2007Co-Authors: Mitsuru Watanabe, Toshiyuki TamaiAbstract:Acrylic Polymer−silica hybrid Emulsions were synthesized from both anionic and cationic Polymer Emulsions by simple post-addition of tetraethoxysilane as a silica precursor. Solvent resistance of the films from the hybrid Emulsions and the ζ-potential of the hybrid Emulsions suggested the different forms of silica components in each hybrid Emulsion. Thermal gravimetric analysis, 29Si NMR measurements, and transmission electron microscope observations revealed that the hybrid Emulsion from the anionic Polymer Emulsion was a mixture of anionic Polymer particles and homogeneously dissolved silicate oligomer−Polymer. On the contrary, the hybrid Emulsion from cationic Polymer Emulsion consisted of Polymer core−silica shell particles. The electrostatic interaction between the cationic Polymer particle surface and the silicate would be responsible for the accumulation of the silicate onto the particle surface, leading to the silica shell layer formation. The sol−gel condensation reaction of silicate in the acidi...
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sol gel reaction in acrylic Polymer Emulsions the effect of particle surface charge
Langmuir, 2007Co-Authors: Mitsuru Watanabe, Toshiyuki TamaiAbstract:Acrylic Polymer−silica hybrid Emulsions were synthesized from both anionic and cationic Polymer Emulsions by simple post-addition of tetraethoxysilane as a silica precursor. Solvent resistance of the films from the hybrid Emulsions and the ζ-potential of the hybrid Emulsions suggested the different forms of silica components in each hybrid Emulsion. Thermal gravimetric analysis, 29Si NMR measurements, and transmission electron microscope observations revealed that the hybrid Emulsion from the anionic Polymer Emulsion was a mixture of anionic Polymer particles and homogeneously dissolved silicate oligomer−Polymer. On the contrary, the hybrid Emulsion from cationic Polymer Emulsion consisted of Polymer core−silica shell particles. The electrostatic interaction between the cationic Polymer particle surface and the silicate would be responsible for the accumulation of the silicate onto the particle surface, leading to the silica shell layer formation. The sol−gel condensation reaction of silicate in the acidi...
Mitsuru Watanabe - One of the best experts on this subject based on the ideXlab platform.
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Sol−Gel Reaction in Acrylic Polymer Emulsions: The Effect of Particle Surface Charge
Langmuir : the ACS journal of surfaces and colloids, 2007Co-Authors: Mitsuru Watanabe, Toshiyuki TamaiAbstract:Acrylic Polymer−silica hybrid Emulsions were synthesized from both anionic and cationic Polymer Emulsions by simple post-addition of tetraethoxysilane as a silica precursor. Solvent resistance of the films from the hybrid Emulsions and the ζ-potential of the hybrid Emulsions suggested the different forms of silica components in each hybrid Emulsion. Thermal gravimetric analysis, 29Si NMR measurements, and transmission electron microscope observations revealed that the hybrid Emulsion from the anionic Polymer Emulsion was a mixture of anionic Polymer particles and homogeneously dissolved silicate oligomer−Polymer. On the contrary, the hybrid Emulsion from cationic Polymer Emulsion consisted of Polymer core−silica shell particles. The electrostatic interaction between the cationic Polymer particle surface and the silicate would be responsible for the accumulation of the silicate onto the particle surface, leading to the silica shell layer formation. The sol−gel condensation reaction of silicate in the acidi...
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sol gel reaction in acrylic Polymer Emulsions the effect of particle surface charge
Langmuir, 2007Co-Authors: Mitsuru Watanabe, Toshiyuki TamaiAbstract:Acrylic Polymer−silica hybrid Emulsions were synthesized from both anionic and cationic Polymer Emulsions by simple post-addition of tetraethoxysilane as a silica precursor. Solvent resistance of the films from the hybrid Emulsions and the ζ-potential of the hybrid Emulsions suggested the different forms of silica components in each hybrid Emulsion. Thermal gravimetric analysis, 29Si NMR measurements, and transmission electron microscope observations revealed that the hybrid Emulsion from the anionic Polymer Emulsion was a mixture of anionic Polymer particles and homogeneously dissolved silicate oligomer−Polymer. On the contrary, the hybrid Emulsion from cationic Polymer Emulsion consisted of Polymer core−silica shell particles. The electrostatic interaction between the cationic Polymer particle surface and the silicate would be responsible for the accumulation of the silicate onto the particle surface, leading to the silica shell layer formation. The sol−gel condensation reaction of silicate in the acidi...
N. Krishnamurti - One of the best experts on this subject based on the ideXlab platform.
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acrylic co Polymer Emulsion binders for green machining of ceramics
European Polymer Journal, 2000Co-Authors: D Rohini B Kumar, Rami M Reddy, V N Mulay, N. KrishnamurtiAbstract:Abstract Manufacturing of complex shaped ceramic materials is becoming very complicated due to the difficulties involved in the machining of ceramics. Therefore green machining of pressed forms is gaining more attention in the ceramic industry. In this communication acrylic-based co-Polymer Emulsions were prepared and used as binders in the ceramic materials such as Lanthanum chromite or strontium chromite. These were then pelletized. The green density and green strength of these pellets were determined. The acrylic co-Polymers were characterized by 1H NMR spectroscopy to ensure the absence of unreacted monomer. Glass transition temperature (Tg) of all the co-Polymers was calculated theoretically and their effect on the green strength of the ceramic-binder composites has been studied.
Hiroshi Kosuge - One of the best experts on this subject based on the ideXlab platform.
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Characteristics of water-absorbent Polymer Emulsions†
Polymer International, 1993Co-Authors: Naotaka Watanabe, Yoshio Hosoya, Akira Tamura, Hiroshi KosugeAbstract:Water-in-Oil (W/O) and Oil-in-Water (O/W) type water absorbent Polymer Emulsions were studied using two different Polymerization methods. W/O type water absorbent Polymer Emulsions were prepared by the inverse Emulsion Polymerization of ammonium acrylate, the quaternized salt of dimethylaminoethyl methacrylate and acrylamide with N,N'-methylene-bisacrylamide as a crosslinker. A pH sensitive water absorbent Polymer Emulsion was prepared by the conventional Emulsion Polymerization of diethylaminoethyl methacrylate with ethylene glycol dimethacrylate as a crosslinker. It was confirmed that the water absorption capacity of cross-linked Polymers in inverse Emulsion was controlled by crosslink density and dissociative charge density
Chen Xiufeng - One of the best experts on this subject based on the ideXlab platform.
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high solid content waterborne ceramic slurry of lithium ion battery separator and processing method of high solid content waterborne ceramic slurry
2015Co-Authors: Tan Bin, Yang Jiafu, Miao Facheng, Lu Dongkui, Wu Shuqiu, Chen XiufengAbstract:The invention discloses high-solid-content waterborne ceramic slurry of a lithium ion battery separator. The high-solid-content waterborne ceramic slurry comprises the following components in percentage by weight: 50-65% of a composition and 35-50% of water, wherein the composition comprises the following components in parts by weight: 0.1-5 parts of a Polymer Emulsion thickener, 1-10 parts of carbon nano-tubes, 0.1-5 parts of a waterborne dispersing agent, 0.1-5 parts of a waterborne wetting agent, 1-10 parts of waterborne latex and 80-100 parts of ceramic particles. The invention also discloses a processing method of the high-solid-content waterborne ceramic slurry. The high-solid-content waterborne ceramic slurry has the advantages of high solid content and good stability.