Silicone Rubber Analytics

Due to many years of experience in the development of silicone elastomers, we can offer the following silicone rubber analytics in cooperation with our Center for Applied Analytics:


Rheological analytics of silicone rubber and rubber precursors:

  • Characterization of rheological behavior of liquid silicone rubber, RTV silicones and silicone rubber precursor
  • Investigation of thermal crosslinking reaction of addition curing polymers (rapid heating rate)
  • In general: Rheological testing


Chemical analytics of vulcanized silicone rubber and rubber precursors:

  • Molecular weight distribution analysis via gel permeation chromatography (GPC)
  • Analytics of Pt content (photometric)
  • Detection of metal-based impurities after digestion via ICP-OES (inductively coupled plasma)
  • Soxhlet extraction combined with a qualitative and semi-quantitative analysis of the extract using GC-MS
  • Soxhlet extraction combined with a quantitative analysis of the extract for non-volatile organic components using HPLC-MS
  • IR and Raman spectroscopy: Detection of functional groups (especially Si-H and vinyl) in precursors and vulcanized rubbers
  • NMR spectroscopy in liquid/soluble precursors
    • Detection of methyl, ethyl, phenyl, vinyl and Si-H-groups
    • Differentiation of M-, D-, T-, Q-groups in precursors
  • Determination of the thermal behavior (e.g. glass transition, softening point, decomposition) and characterization of released volatile components via TGA/DSC-MS/IR
  • Determination of the polymer’s molecular mass distribution via size exclusion chromatography/gel permeation chromatography (SEC/GPC)