Nevertheless, in order to respond to the economic and environmental criteria, hydrogen production and storage have to be improved. This work focuses on gaseous storage under high pressure (700 bar) using a type III vessel (figure 1) that is to say composed of a metal liner – which prevents gas diffusion – and of a composite laminate wrapped by filament winding – which is used as a mechanical st...

The possibility of obtaining a filament for 3D printing from plastic bottles based on polyethylene terephthalate is investigated. A preliminary heat treatment the material proposed, which allows powder with minimal energy consumption dispersion. temperature regime processing an extrusion line single-screw extruder subsequent cooling melt before winding coils determined. Comparative strength tes...

Abstract. Recently, Università Politecnica delle Marche and COMEC Innovative srl are involved in the research project “Smart Tow Winding” funded by MIUR (Ministry of Education, University Research), concerning development an innovative process for realization a pressure vessel through Filament Winding (FW) technology. In this context, design procedure type IV composite is proposed. To component...