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In the present paper, we investigated a sandwich composite as a potential electromagnetic interference shielding wall panel for buildings. The panel was built using a ferrite-particle modified high density polyethylene in a sandwich assembly enabling electromagnetic shielding properties. The life cycle assessment (LCA) approach was employed here to assist in the production phase and in the materials selection, in order to obtain an environmental friendly final product. An optimization of the constituents of the sandwich structure is proposed by comparing the environmental impact of different potential solutions without influencing the EMI shielding properties.

The broadband Partial Discharge (PD) measurement technique may be considered more accurate than a simple breakdown test and admitted as a complementary method for characterizing the quality of porous/fibrous and composite insulating materials. It should be taken into account especially at higher frequencies, when the risk of breakdown occurrence becomes greater in time, due to the local thermal aspects.