Characterization of epoxy syntactic foams by dynamic mechanical analysis

Nanoclay reinforced thermoplastic toughened epoxy hybrid syntactic foam: Surface morphology, mechanical and thermo mechanical properties

“…At T g , syntactic foam shows a drastic decrease in storage modulus indicating the softening of matrix. Sankaran et al [32] reported that the temperature at which the onset of steep decrease in storage modulus is considered as the maximum usage temperature (T max ) for the respective syntactic foam. The T max of the all syntactic foams are given in Table 3.…”

Syntactic Foams

“…The reduction in modulus values with increasing temperature is much lower in syntactic foams compared to neat resins ( Figure 13.16). The room temperature tan δ values of the syntactic foams showed a relatively large decrease compared to the neat resin due to the presence of rigid glass microballoons [61]. structure of ESO and MTHPA are shown in Figure 13.17.…”

“…Two-phase syntactic foams have good mechanical properties and low moisture absorption properties compared to three-phase systems. Though three-phase syntactic foams have poor mechanical properties, they possess low dielectric and loss coefficients compared to twophase foams [60,61].…”

“…The properties of syntactic foams can be tailored by changing a wide variety of parameters, including the matrix and microballoon materials, microballoon size, size distribution, wall thickness, and volume fraction [61,68,69]. The composition and density of syntactic foams can be predicted as these are fabricated by mechanically filling the gas containing particles into the polymer matrix.…”

“…they tend to behave the same way on every load-bearing axis) [61]. The various properties of syntactic foams do not appear to be associated with any preferred direction in the material, but rather with the orientation of the applied stresses [65].…”