Impact of controlled particle size nanofillers on the mechanical properties of segmented polyurethane nanocomposites

Structure and properties of flexible polyurethane foams with nano- and micro-fillers

“…We considered that similar effect can be reached by the addition of nano-fillers, which are known by their reinforcing effect in plastics or PUs. [8][9][10][11][12][13][14][15] Nano-fillers are compatible with polyols and give stable dispersions, an important precondition for their application in PU foams. The objective of this study was to examine the feasibility of replacing the copolymer particles with nano-fillers and test their effect on cell opening, cell structure, and properties of molded flexible urethane foams.…”

Organization of mixed dimethyldioctadecylammonium and choline modifiers on the surface of synthetic hectorite

“…1b. A broader 001 reflection is typically observed when the lateral dimension of the clays decreases [34]. In addition, it also indicates a wide distribution of gallery heights due to heterogeneous surfactant arrangements [35].…”

Polymer Additives Used to Enhance Material Properties for Medical Device Applications

“…These additives improve the mechanical, thermal, and flame-retardant properties of the composite [57]. When nano fluoromica milled to 30 nm and surface treated to improve compatibility is incorporated into thermoplastic polyurethane, 3-5% additive improves tensile strength by 100% producing an elongation of 100%, and a 200% increase in tensile stress [59]. For example, when 2-5% of barium sulfate with a particle size of 5 nm is incorporated into polymethylmethacrylate (PMMA) bone cement, the radiopaque cement maintains its integrity and performance requirements [58].…”