Analyzing Chemical Composition of Rigid Polyurethane (PU) Foams using FTIR Microscopy and DRIFTS-IR

  • The chemical composition of rigid polyurethane foams was studied using FTIR microscopy and diffuse reflectance Fourier transform spectroscopy (DRIFTS) FTIR.
  • Temperature gradients during the processing of rigid polyurethane (PU) foams leads to chemical gradients that might be observed across the radial and axial dimensions of the foam.
  • Unreacted reactants and products from side reactions can remain trapped in the cavities of the foam hampering mechanical strength.
  • A highly complex and heterogeneous polymeric composite results.
  • The chemical composition of the cellular structure of the foam was studied with distinct spectra of the gas filled cell nucleus and cell wall.
  • FTIR spectroscopy offers an ideal tool for studying variations in chemical composition at both bulk and microscopic levels.

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Molecular Spectroscopy, FTIR Spectroscopy
Rigid Polyurethane (PU) Foams, Chemical Composition,Molecular Spectroscopy, Hydrocarbon Processing Industry (Petrochemical, Chemical), Petrochemical, Polymer, Rubber, Resin, Plastics, IRTracer-100
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