The effect of dose rate and filler weight on radiation crosslinking of silicone rubber (SR)have been investigated in present work.

The values of various crosslinking parameters may be calculated from the equations of crosslinking theory. We found that values are proportional to dose rate and weight of filler. From experimental data it can be seen that:

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values decrease with increase indose rate and filler weight. In the presence of filler

under the condition that total dose remains unchanged the effect of dose rate on sol fraction still follows the equation: logs=logs

o

+B/I

When q

0

is constant

the relation between crosslinking density and dose can be written as

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for lower dose the experimental results shows that the equation can be reduced simplified to the well know form

<

n

>

-1

=q

0

R.

The effect of dose rate on crosslinking density is very small at low irradiation dose.