Craze growth in a styrene-acrylonitrile copolymer under stress relaxation conditions has been examined as a function of time after a quench, i.e., physical aging time, at four temperatures from ambient to 60 °C. It was found that the craze length varies linearly in the logarithm of loading time. A transition from a high logarithmic growth rate to a rate some 4-6 times slower was found to occur with respect to aging time. The transition seems to move to shorter aging times as temperature increases. The slow growth rate is relatively insensitive to temperature for all four temperatures investigated and the rapid growth rate was also approximately the same for both temperatures for which it was observable in the aging time range accessible in these experiments.
|Number of pages||4|
|State||Published - 1998|
|Event||Proceedings of the 1998 56th Annual Technical Conference, ANTEC. Part 1 (of 3) - Atlanta, GA, USA|
Duration: Apr 26 1998 → Apr 30 1998
|Conference||Proceedings of the 1998 56th Annual Technical Conference, ANTEC. Part 1 (of 3)|
|City||Atlanta, GA, USA|
|Period||04/26/98 → 04/30/98|