Environmental Engineering Reference
In-Depth Information
Figure 7.4
Modulus versus plasticizer (dioctyl phthalate) concentration
for PS films. Two different techniques, indentation and strain-induced
elastomer buckling instability for mechanical measurements (SIEBIMM),
were used to estimate the modulus of the material. The latter technique is
SIEBIMM, an optical technique for assessing the modulus of thin films of
material.
Source: Reproduced with permission from Stafford et al. (2004).
The generic chemical structures of six common phthalates are shown in
Figure 7.5
and listed in
Table 7.5
. Of these, di(2-ethylhexyl) phthalate
(DEHP) is the most commonly used and perhaps the most extensively
studied member of the class (Matsumoto et al., 2002).
