What are the mechanical properties of photochromic plastic im looking for the malliebility ductility thermal conductivity electrical resistance and dielectric strength for an assignment?
Photo chromic plastic properties are; the rear surface of the
glass has a different radius than the front surface of the plastic,
so that the space between the lenses forms a tapered gap which is
filled by the elastic adhesive. The edge thickness of the elastic
adhesive is sufficient to insure that the increase in diameter of
the plastic layer with respect to the diameter of the glass layer
due to differences in the thermal expansion characteristic of the
glass and the plastic will not damage the composite lens even over
a temperature range greater than 300° F.