China Plastics ›› 2019, Vol. 33 ›› Issue (2): 97-102.DOI: 10.19491/j.issn.1001-9278.2019.02.018

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A New Measuring Device for Solubility of Supercritical Carbon Dioxide in Polymers

  

  • Received:2018-09-02 Revised:2018-11-05 Online:2019-02-26 Published:2019-03-26

Abstract: A new device was designed for measuring the dissolution behavior of supercritical CO2 in polymers by means of a volume method, and its feasibility was verified by measuring the solubility and dissolution rate of supercritical CO2 in polystyrene in the temperature range of 443.15~463.15 K and in the pressure range of 7.5~9.5 MPa. The relative deviation between the experimental and calculated values was less than 20 %, and the diffusion coefficient calculated by the experiment was identical to the reported one in literature by the same order of magnitude, indicating that this new device could precisely measure the solubility of supercritical CO2 in polymers.