Measurement of Paper Rheology at Varied Moisture Contents

S. T. Lehti, J. A. Ketoja, K. J. Niskanen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

3 Citations (Scopus)

Abstract

We made creep and tensile stiffness measurements at different moisture contents with a new device. The geometry of the device is such that stable conditions after a moisture change are achieved reasonably fast. Tensile stiffness decays exponentially as the moisture content of paper is increased. The decay is faster in cross machine than in machine direction. We analyzed creep at varied moisture content using master curves. Also the creep rate depends exponentially on the moisture content. But this dependence is qualitatively different from that seen in tensile stiffness.
Original languageEnglish
Title of host publicationInternational Paper Physics Conference 2003
Subtitle of host publicationProceedings
Pages57-60
Number of pages4
Publication statusPublished - 20 Nov 2003
MoE publication typeA4 Article in a conference publication
EventInternational Paper Physics Conference - Victoria, Canada
Duration: 7 Sep 200311 Sep 2003

Conference

ConferenceInternational Paper Physics Conference
CountryCanada
CityVictoria
Period7/09/0311/09/03

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Rheology
Moisture
Creep
Stiffness
Geometry

Cite this

Lehti, S. T., Ketoja, J. A., & Niskanen, K. J. (2003). Measurement of Paper Rheology at Varied Moisture Contents. In International Paper Physics Conference 2003: Proceedings (pp. 57-60)
Lehti, S. T. ; Ketoja, J. A. ; Niskanen, K. J. / Measurement of Paper Rheology at Varied Moisture Contents. International Paper Physics Conference 2003: Proceedings. 2003. pp. 57-60
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Lehti, ST, Ketoja, JA & Niskanen, KJ 2003, Measurement of Paper Rheology at Varied Moisture Contents. in International Paper Physics Conference 2003: Proceedings. pp. 57-60, International Paper Physics Conference, Victoria, Canada, 7/09/03.

Measurement of Paper Rheology at Varied Moisture Contents. / Lehti, S. T.; Ketoja, J. A.; Niskanen, K. J.

International Paper Physics Conference 2003: Proceedings. 2003. p. 57-60.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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N2 - We made creep and tensile stiffness measurements at different moisture contents with a new device. The geometry of the device is such that stable conditions after a moisture change are achieved reasonably fast. Tensile stiffness decays exponentially as the moisture content of paper is increased. The decay is faster in cross machine than in machine direction. We analyzed creep at varied moisture content using master curves. Also the creep rate depends exponentially on the moisture content. But this dependence is qualitatively different from that seen in tensile stiffness.

AB - We made creep and tensile stiffness measurements at different moisture contents with a new device. The geometry of the device is such that stable conditions after a moisture change are achieved reasonably fast. Tensile stiffness decays exponentially as the moisture content of paper is increased. The decay is faster in cross machine than in machine direction. We analyzed creep at varied moisture content using master curves. Also the creep rate depends exponentially on the moisture content. But this dependence is qualitatively different from that seen in tensile stiffness.

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Lehti ST, Ketoja JA, Niskanen KJ. Measurement of Paper Rheology at Varied Moisture Contents. In International Paper Physics Conference 2003: Proceedings. 2003. p. 57-60