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Application of SiO2 Nanoparticles for Thermophysical Improvement of Integral Skin Polyurethane Elastomers

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A dramatic improvement has been achieved by reinforcement of integral skin polyurethane elastomers, using SiO2 nanoparticles. Ultrasonification and high rate mechanical stirring were utilized to disperse the nano filler in polyether polyol matrix. A silane-based coupling agent was also used to ensure the interaction of nanoparticles with polymer, improving the homogeneity. This was monitored by scanning electron microscope. Physical properties of the prepared elastomers, e.g., tensile strength, elongation at break, elasticity modulus and abrasion resistance, were investigated. Also, thermomechanical characterization techniques, e.g., dimensional mechanical analysis, thermal mechanical analysis and thermal gravimetric analysis, were applied for evaluation of nanocomposite elastomers. Effect of nano filler on polyurethane segments and probable phase separation was also studied.
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Keywords: INTEGRAL SKIN ELASTOMER; NANO SIO2; PHASE SEPARATION; POLYURETHANE; THERMOMECHNICAL

Document Type: Research Article

Affiliations: Chemistry Department, Faculty of Science, IKIU, Qazvin, Iran; Department of Polymer and Chemistry Laboratories, Engineering Research Institute, Tehran, Iran

Publication date: 2011-01-01

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