Characterization of epoxy-surfactant interactions

Phase Transformations Undergone by Triton X-100 Probed by Differential Scanning Calorimetry and Dielectric Relaxation Spectroscopy

“…Concerning the subsequent heating runs presented in Figure a, for the one collected after cooling at 9 K min –1 , the heat flow jump reappears as the glass transition signature at a temperature of 212 K taken at the midpoint of the transition region (data provided in Table ); this value of the glass transition temperature agrees with the values provided for Triton X-100 by Jensen et al (214.5 K measured at the midpoint) and by Larraz et al (205.15 K measured at the onset).…”

Hybrid carbon nanotube - carbon fiber composites for high damping

“…As seen in Figure 3, η and E" in the YN10%-TX4 [0/±45]s laminate increased with increasing temperature, whereas E' decreased slightly. The changes in the baseline properties are similar but relatively muted in magnitude, indicating that the YN10%-TX4 system is slightly more sensitive to elevated temperatures, as can be expected due to the plasticization effect of the surfactant [42]. The trends shown by both materials are typical for polymer-based composites tested below their glass transition temperature [44].…”

“…Rows 4 and 5 of Table 3 show the effects of adding only Triton X-100 to laminates without CNTs. Increasing the concentration of Triton X-100 monotonically increased η and E", but monotonically decreased E', presumably through a plasticization mechanism [42]. Interestingly, as seen in the last two rows of Table 4, infiltrating 10 vol% CNT yarn with Triton X-100 in a 1:2 or 1:4 mass ratio overcame the reduction in E' and increased η, E", and E' relative to the any of the other systems shown in Table 4.…”

Enthalpy Relaxation of Layered Silicate‐Epoxy Nanocomposites

“…On the other hand, the increase in m with MMT content reveals that the incorporation of MMT increases the fragility of the material. Increases in fragility resulting from the addition of solid components have been reported for epoxy‐glass cloth composites 75. In that work, the increased surfactant concentration decreased the fragility of the epoxy resin, but the fragility increased when the epoxy resin was cast on the surface of E‐glass cloth.…”