Krompachy, 7 July 2017

On 7 July 2017 in SEZ Krompachy company the workshop was held in accordance with T 5.1b, dedicated to NEWEX Project Staff. The agenda of the workshop included the presentation of  research results received by particular research teams. The presentations of particular Task Leaders concerned the investigation of the extruder and extrusion process as well as the investigation of extrudate properties. Mrs Karolina Głogowska from Lublin University of Technology discussed the received research results of material pressure distribution in plasticization system and extrusion head, temperature distribution in individual functional zones of plasticization system and extrusion head, screw torque, unit energy consumption, extruder and process efficiency, die swell, temperature of the extrudate, polymer output, extrusion speed, power conducted to the extruder and power transferred by the polymer. Mr Janusz Sikora from Lublin University of Technology presented research results of melt flow index MFR and MVR, Heat Deflection Temperature HDT, Vicat softening temperature VST, temperature of phase transitions, degree of crystallinity, enthalpy, relationship of the specific volume to temperature and pressure and degree of polymer homogenization. Prof. Francisek Greškovič from Technikal University of Košice talked about research results of Young’s modulus, ultimate tensile stress, breaking stress, strain at ultimate stress, strain at break, impact strength, hardness and linear shrinkage. The tests concerned the results received at low and high rotational extruder screw speeds of nanocomposites with PE + PE-graft-MA filled with 2, 4 and 6% halloysite nanotubes. After these presentations the discussion was held concerning the received results and then different constructional designs of active grooved section – the result of Task T 2.1 of WP2 – were considered.

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