Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference (한국펄프종이공학회:학술대회논문집)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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THERMOPOROSIMETRY BY ISOTHERMAL STEP MELTING

  • Thad C. Maloney (laboratory of Paper Technology Helsinki University of Technology, Finland)
  • Published : 1999.04.01

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Abstract

A new thermoporosimetry technique is described. The technique is based on the isothermal step melting of water in a porous sample. The pore size distribution (PSD) is calculated from the melting temperature depression of the imbibed water. It is shown that the pore volume and PSD of 4-300 nm nominal pore diameter porous glasses can be accurately measured with the step technique. The results indicate that pulp fibers are more complicated than porous glasses to measure with thermoporosimetry.

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