thermoplastic polyurethane (tpu)/clay nanocomposites were prepared via a melt-compounding method using ester type tpu and two different modified organoclays (cloisite 30b and cloisite 15a) in different contents. the effects of the chemical structure and content of the nanoclays on the thermal degradation and mechanical properties of tpu were also investigated. the effect of structural modificat...

polyurethane foams are extensively used in different applications such as furnitures and sandwich structures due to better mechanical properties, higher acoustic and damping behavior, higher resistance to hydrocarbon, and aging.with respect to flammability of polyurethane materials and safety precaution in living and working environments there is a vital need to study and investigate published ...

Abstract In this paper, a new multifunctional nanocomposite was synthesized to combine both the advantages of sorption properties and antibacterial efficiency. The thiourea polyurethane/zinc oxide prepared by coupling polyurethane foam zinc nanoparticles. characterized using several tools. change in surface chemistry (surface area increased from 2.8 10.6 m 2 /g), due attached functional groups,...

Self-propelled oil droplets in a nonequilibrium system have drawn much attention as both a primitive type of inanimate chemical machinery and a dynamic model of the origin of life. Here, to create the pH-sensitive self-propelled motion of oil droplets, we synthesized cationic surfactants containing hydrolyzable ester linkages. We found that n-heptyloxybenzaldehyde oil droplets were self-propell...

polyurethane/zeolite 13x nanocomposite films were fabricated using solution casting method. the synthesized nanocomposite films were structurally characterized using sem, tga and tensile analysis. sem images showed appropriate distribution of nanocrystalline zeolite particles within polyurethane matrix. better thermal stability of nanocomposite films in comparison to neat polyurethane was shown...

Influence of different types surfactants on electrodeposition copper- and carbon-bearing (graphite, carbon nanotubes (CNTs)) composite powder has been experimentally investigated. The size particles decreased, corrosion resistance increased when were added. Addition cationic surfactant CTAB to the electrolyte with simultaneous ultrasonic treatment for CNTs dispersion gives maximum effect.

Nanosilica dispersion was added to waterborne polyurethane by using three different physical mixing procedures differing in the flow regime (tangential, laminar, radial) and stirring rate (300–2400 rpm). The influence of procedure on structural, thermal, rheological, mechanical, surface adhesion properties polyurethanes (PUs) containing 1 wt% nanosilica evaluated. functionalized with acrylic mo...

A green methodology was developed for the extraction and determination of lauryl ether sulfate in raw materials commercial liquid soap shower gel samples. The method avoids use organic solvents, offering a simple, cheap, safe analysis. is based on sorption an ionic pair consisting cationic dye anionic surfactant onto polyurethane foam. experimental variables were optimized by chemometry to obta...