najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2016-7-3-464-471najo-1233Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХSynthesis and mechanical characterization of nanoparticle-infused polyurethane foams. Statistical analysis of foam morphologySynthesis and mechanical characterization of nanoparticle-infused polyurethane foams. Statistical analysis of foam morphologyPikhurovD. V.PikhurovD. V.

Kronverkskiy pr., 49, 197101 St. Petersburg

Kronverkskiy pr., 49, 197101 St. Petersburg

nefaeron@gmail.comZuevV. V.ZuevV. V.

Kronverkskiy pr., 49, 197101 St. Petersburg; Bolshoi pr., 31, 199004 St. Petersburg

Kronverkskiy pr., 49, 197101 St. Petersburg; Bolshoi pr., 31, 199004 St. Petersburg

zuev@hq.macro.ruITMO UniversityITMO UniversityITMO University; Institute of Macromolecular Compounds of the Russian Academy of SciencesITMO University; Institute of Macromolecular Compounds of the Russian Academy of Sciences20162008202573464471Copyright © Pikhurov D.V., Zuev V.V., 20252025Pikhurov D.V., Zuev V.V.Pikhurov D.V., Zuev V.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1233

Nanocomposite polyurethane (PU) foams filled with different loadings (0.1 – 0.7 wt.%) of nanosized silica (average grain size of ∼ 7 and 12 nm) and organonanoclay were prepared by the prepolymer method, and their mechanical properties were investigated. A statistical analysis of the size distribution for foam cells was successfully applied in order to characterize their morphology. The developed approach was shown to provide a detailed analysis of the morphology development in PU foams, including the primary cell formation and their subsequent break-up and coalescence. The degree of phase separation in nanocomposite polyurethane foams, which is dependent on the nanofiller, was calculated from the IR spectra. The presence of silica nanoparticles and organoclays gives rise to significant differences in the mechanical (stress-strain) properties of the nanocomposite polyurethane foams relative to the pure polymer.

Nanocomposite polyurethane (PU) foams filled with different loadings (0.1 – 0.7 wt.%) of nanosized silica (average grain size of ∼ 7 and 12 nm) and organonanoclay were prepared by the prepolymer method, and their mechanical properties were investigated. A statistical analysis of the size distribution for foam cells was successfully applied in order to characterize their morphology. The developed approach was shown to provide a detailed analysis of the morphology development in PU foams, including the primary cell formation and their subsequent break-up and coalescence. The degree of phase separation in nanocomposite polyurethane foams, which is dependent on the nanofiller, was calculated from the IR spectra. The presence of silica nanoparticles and organoclays gives rise to significant differences in the mechanical (stress-strain) properties of the nanocomposite polyurethane foams relative to the pure polymer.

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The authors declare that there are no conflicts of interest present.