HEAD OFFICE
+46 70 6042006
Stockholmsvägen 59
SE-761 43 NORRTÄLJE
Contact
info@polymira.se
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
Services
- 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
Keywords
- Barrier materials
- Thin films
- Multilayer film
- Permeability
- Diffusion
- Solubility
- Temperature dependency
- Acitvation energy of D, S and P
- Simulation of transport properties
Barrier properties
Competence
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