On the basis of previous studies  three dissimilar CFNs with different voids content (Table 1) were chosen for impregnation with PVA water solutions.
Biodegradation of CFNs and their composites was determined by the soil burial test.
Biodegradation tests confirm that composites with a small polymer content [[phi].sub.POL] lose their integrity and weight more rapidly than those containing more polymer, even faster than untreated CFNs (Fig.
Composites based on CFNs with different volume fraction of voids [[phi].sub.V M] (0.70, 0.56, and 0.40) and poly(vinyl alcohol) were made.
SEM microphotos disclose no great changes in CFN frame structure compared to untreated CFNs.
The water vapour sorption character observed suggests that absorption is determined by the hydrophobic/hydrophilic nature of CFNs.
Before FINSA, if the CFNS examined and cleared a transaction, both
the CFNS uses to determine what transactions are subject to CFIUS
congressional scrutiny on the CFNS process will likely avoid the
Part also offers suggestions for the next time Congress reforms the CFNS
the new CFNS rules for handling a foreign government-controlled