An effect of moisture content on successive changes in the load-elongation curve for paper
✍ Scribed by K. J. Harrington
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 232 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
Changes in the stress-strain curve for paper undergoing cyclic loading have been studied as a function of moisture content. It has been found that the extensional stiffness of the paper progressively decreases at both low and high moisture levels but progressively increases a t intermediate moisture levels. The moisture content at which the transition from decreasing to increasing stiffness occurs (when passing from low to intermediate moisture content) has been determined and for the particular paper used in these experiments has been shown to correspond to a relative humidity of approximately 60%. It is postulated that a t low and high moisture levels, conditions are not favorable for interfiber bond reformation, whereas conditions are favorable for such r e formation at intermediate moisture levels.