On the basis of the characteristics described in the introduction of molecular fortifiers, propyl benzene is selected as a compound that should not act as a fortifier.
Propyl benzene (the control plasticizer) and DMC are also both easily blended with the epoxy resin and cured within the network.
The addition of propyl benzene decreases the density of the network as would be predicted by a rule of mixtures.
The propyl benzene is expected to act as a plasticizer for the epoxy and indeed it decreases the [T.
As expected the propyl benzene acts as a plasticizer and a drop in modulus is observed.
Table 3 - common VOCs emitted from SBR Compound Comments 4-vinyl cyclohexene Butadiene dimer 1,5 cyclooctadiene Butadiene dimer 1,2-divinyl cyclobutadiene Butadiene dimer Methyl benzene Styrene Xylene (o, p & m) Propyl benzene
Benzaldehyde Cyclohexane, 1-methyl-4-(1-methylethyl) Napthalein Benzothiazole 4-phenyl cyclohexene Styrene-butadiene dimer Indenes Tetramethylthiourea