Barrier properties


+46 70 6042006

Stockholmsvägen 59



Permeation of gases and liquids through polymer films is a critical property of modern packages used in food industry and constructions. New materials consisting of several barriers have been developed and designed for optimal performance.


  • The oxygen transmission rate (OTR) or water vapour transmission rate (WVTR) of thin films can be monitored by OX-TRAN and Permatran-W which makes use of a carrier gas and a sensitive sesnor to oxygen and water respectively..
  • Water uptake experiments can be used to determine the diffusion coefficient and solubility from which the permeability can be calculated from P=DS


  • Measurement of OTR and WVTR
  • Determining the permeability of various gases
  • Water uptake of thick specimens
  • Effect of water on mechanical properties
  • Simulation of diffusion behaviour and permability
  • How water can effect properties


  • Barrier materials
  • Thin films
  • Multilayer film
  • Permeability
  • Diffusion
  • Solubility
  • Temperature dependency
  • Acitvation energy of D, S and P
  • Simulation of transport properties

Barrier properties


Polymer technology

  • Polymer materials
  • Polymer processing
  • Characterisation
  • Curing of thermoset


Epoxy technology

  • Curing progress
  • Conversion, vitrification
  • Curing kinetics
  • Resin and curing systems


Analysis & Characterisation

  • DSC, TGA
  • DMA
  • Tensile testing
  • Creep testing
  • Diffusion properties

Stability and lifetime

  • Accelerated ageing
  • Climate chamber
  • Life time prediction
  • Reaction kinetics
  • Life time extension


Simulation & Modeling

  • Heat transfer
  • Structural mechanics
  • Flow properties
  • Diffusions properties
  • Electric properties


Flow properties

  • Viscosity
  • Viscosity function
  • Pseudo-plastic
  • Thixotropy
  • Flow behaviour


Polymira AB