Determination of the solubility of a blowing agent, i.e. supercritical N2, in polypropylene (PP) and elastomer material is crucial for achieving high-quality thermoplastic polyolefin (TPO) foams in automotive industry. A magnetic suspension balance (MSB) was employed in the experiments to measure the apparent solubility, while the swollen volume predicted by the Sanchez-Lacombe (SL) equation of state (EOS) was used to account for the buoyancy effect. The volume swelling of the polymer/gas mixture and the gas solubilities for both PP and polyolefin elastomer were discussed.
Measurement of N2 Solubility in Polypropylene and Ethene/Octene Copolymer
Sae Technical Papers
SAE 2006 World Congress & Exhibition ; 2006
2006-04-03
Aufsatz (Konferenz)
Englisch
Magnetic materials , Thermoplastics , Elastomers , Gases , Foams , Polymers
Measurement of N2 solubility in polypropylene and ethene/octene copolymer
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