13: ARAMIDS 315
are not included in Table 13.6. Tradenames appearing
in the references are shown in Table 13.7.
13.7 Safety
Inhalation toxicology studies with fibrils made from
p-aramid have been documented [103]. Responses
were detected, but the interpretation of these studies
was regarded as controversial. There is some evidence
for the biodegradability of p-aramid respirable-sized
fiber-shaped particulates [104], the concept of which
was supported in subsequent studies [105]. Actually,
material safety data sheets reportthe possibility of lung
injury, if fiber dust is inhaled for a prolonged time. On
the other hand, aramids are not considered to be dan-
gerous from skin contact or by ingestion.
13.8 Environmental Impact and
Recycling
Traditionally, asbestos ...