Ionizing rays can be aorbcharged particles or non-charged
particles: X-rays org-rays and neutrons. Some are commercially
used, for example gamma radiation. Many authors have studied
the various factors affecting the radiation resistance of elastomers.
Some studied the effect of black fillers[35] and others various
organic additives[36,37]. In the field of rubber to fabric adhesion,
many authors studied the radiation effect on adhesion. They
showed that when these products are subjected to high radiation
energy, the peel strength is affected significantly. They recorded
that at certain radiation dose, the adhesion force increases by
about 400%[38–41].
Generally, when polymers are exposed to gamma radiation,
ionization occurs and this is a mechanism which changes the
properties of elastomers. By this mechanism free radicals are
formed and the polymer may possess chain scissions, cross-linking or combination of broken chains [42]. Actually, the effect
of gamma radiation is a balance between molecular breaking on
one hand and molecular rearrangements on the other hand[43]
In case of rubber to fabric or to metal the extent of adhesion may
be affected by radiation according to two factors; either the