Effect of Drying Method on the Creep Behaviour of Paper

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As new drying processes develop, it is pertinent to ask if they might also alleviate problems related to creep and stress relaxation. To examine this, we compared cylinder drying, impingement drying and the standard handsheet drying. We used three furnishes having different proportions of cellulose, hemicellulose and lignin. For the measurement of tensile creep strain, we used non-contact video image correlation technique, in which the strain was measured from digitised specimen images taken by CCD camera. We introduced creep number to simplify the description of creep behaviour. We found that the drying methods did not make any significant difference in affecting the creep response (indicated by the creep number) of normal handsheets (made from PS-AQ pulp or high yield pulp). We also discussed the possibility to predict the creep response in long time scale.
Original languageEnglish
Title of host publication88th PAPTAC Annual Meeting
Subtitle of host publicationPart, A
PublisherPulp and Paper Technical Association of Canada (PAPTAC)
Number of pages9
Publication statusPublished - 2002
MoE publication typeNot Eligible
Event88th PAPTAC Annual Meeting - Montreal, Canada
Duration: 29 Jan 200231 Jan 2002
Conference number: 88


Conference88th PAPTAC Annual Meeting

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