Figure 3

Moisture-absorption and retention abilities of SM1127 EPS and control samples.
(a) Moisture-absorption ability in a saturated K2CO3 chamber (43% RH) at 25 °C. (b) Moisture-absorption ability in a saturated (NH4)2SO4 chamber (81% RH) at 25 °C. (c) Moisture-retention ability in a silica gel chamber at 25 °C. The ability was examined gravimetrically. The graph shows data from triplicate experiments (mean ± S.D.).