Clarity measurement of polymer films
Article first published online: 9 MAR 2003
Copyright © 1961 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 5, Issue 13, pages 48–52, January/February 1961
How to Cite
Wilchinsky, Z. W. (1961), Clarity measurement of polymer films. J. Appl. Polym. Sci., 5: 48–52. doi: 10.1002/app.1961.070051307
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Received: 27 JUN 1960
The component of clarity of polymer films, dependent on optical resolution, was conveniently and objectively determined from light-scattering measurements at low angles (i.e., below 1°). The width of the scattering curve at half the maximum intensity was used as an index of clarity. This quantity is essentially equivalent to the minimum angle of resolution obtained when viewing a test object through the film. By applying a correction for the resolution of the instrument, the range of the instrument was extended in the direction of high clarity, and within the precision of the measurements the clarity ratings are independent of instrument characteristics.