and 2-phenylethyl amine were supplied by Sigma-Aldrich. Diglycidyl
ether of bisphenol A (EP, epoxy equivalent weight 178.5 g) was purchased
from Huntsman Pvt. Ltd. Methanol, acetone, trichloroethylene (TCE),
and methyl ethyl ketone (MEK) of 99.5% purity were supplied by Merck
Specialties Pvt Ltd, Germany. Gaskamine 328 was purchased from Mitsubishi
Gas Chemical, Japan. Silica nanopowder (20 nm) and PTFE (1 μm)
powder were purchased from Sigma-Aldrich.