Multilayer material for electromagnetic field shielding and EMI pollution prevention

V. Lapkovskis¹*, V. Mironovs¹, I. Jevmenov², A. Kasperovich³ and V. Myadelets³

¹ Riga Technical University, Scientific Laboratory of Powder Materials, Kipsalas str. 6B-331, LV-1048 Riga, Latvia
² Rubber Products Llc, Jurkalnes str. 15/25, LV-1046 Riga, Latvia
³ Belarussian State Technological University, Department of Technology of petrochemical Synthesis and Polymer Materials Processing, Sverdlova str. 13a, BY220006 Minsk, Belarus
*Correspondence: lap911@latnet.lv

Abstract:

A significant growth of scientific activities related to electromagnetic fields interaction with equipment and living organisms have turned into an up-to-date research trend in recent decades. Power transmission lines, electric devices, and portable electronics have become a source of electromagnetic pollution. Therefore, a question of electromagnetic shielding is a substantial criterion for workplace safety. Current paper suggests a possible solution based on loose materials and rubber compounds for essential protection of people and equipment against electromagnetic influence.

Key words:

Production of Crumb Rubber – Iron Powder Mixture for perspective synthesis of Carbon-Iron powder sorbent

V. Mironovs¹, O. Ozernovs¹, V. Lapkovskis¹* and D. Golyandin²

¹Riga Technical University, Laboratory of Powder Materials, Kipsalas Str. 6, LV-1048 Riga, Latvia
²Tallinn Technical University, Tallinn University of Technology, Ehitajate tee 5, EE 19086, Tallinn, Estonia
*Correspondence: lap911@latnet.lv

Abstract:

A sustainable technique for conversion of end-of-life tyres (ELTs) to products with added value is of a great importance for resource-efficient circular economy. However, obtaining products with added value often requires multi-stage procedures, which include traditional and emerging technological approaches. In current paper, the authors suggest an efficient approach for recycling of ELT tyres, obtaining products which can be subsequently used for environmental applications. This approach introduces a synthesis path for new materials by transformation of industrial wastes i.e. ELT rubber wastes to crumb rubber and further mixing with iron powder. Particular attention is driven to perspective processing of obtained crumb rubber-iron powder mixture by means of microwave pyrolysis for synthesis of carbon-iron powder mixture and its use as a composite absorbent material along with emerging application for electromagnetic and microwave irradiation protection.

Key words:

crumb rubber, disintegrator, high pressure grinding rolls, iron powder, microwave pyrolysis