Under the irradiation condition of 365 nm by the high-pressure mercury lamp
, the MB degradation rate by the film after EF&H treatment was as high as 95%.
The new system is equipped with a high-pressure mercury lamp
instead of the xenon lamp installed in the conventional model, enabling users to exchange the lamp easily and safely when necessary and reduce total running costs, Sony said.
MMA was cured at 30[degrees]C with a 400 W high-pressure mercury lamp set at a distance of 300 mm to the dilatometer.
A high-pressure mercury lamp with a cut-off filter (365 nm) was used for irradiation.
"The European directive 'Restriction of Hazardous Substances in Electrical and Electronic Equipment' (RoHS 2) still allows an exemption for high-pressure mercury lamps
like they are used for traditional UV curing," Larvor said.