Objava znanstvenega članka z naslovom »Low-Temperature Fibre Direct Compounding of Cellulose Fibres into PA6«

V septembru smo skupaj s kolegi iz Tehnične univerze Dresden in Univerze v Leobnu objavili članek v reviji “Materials” (IF = 3,748). Avtorji članka so Janez Slapnik, Yuanxi Liu, Robert Kupfer, Thomas Lucyshyn, Blaž Nardin in Gerald Pinter. Najdete ga lahko (brezplačno) na sledeči povezavi.

Raziskava je bila izvedena v sklopu projekta Cel.Krog.

Izvleček:

This study reports on the development of a novel polymer processing approach that combines low-temperature (LT) processing and fibre direct compounding (FDC) to reduce the thermal stress on thermosensitive components that occurs during compounding and subsequent injection moulding (IM). Composites based on polyamide 6 (PA6) and cellulose fibres (CeF) were prepared using an LT-FDC process and in parallel with a conventional approach using a twin-screw extruder and IM. The morphological, optical, thermal, and mechanical properties of the prepared samples were investigated using optical microscopy (OM), differential scanning calorimetry (DSC), colorimetry, dynamic mechanical analysis (DMA) and tensile tests. Composites prepared using LT-FDC exhibited worse fibre dispersion but lower fibre degradation. In comparison to neat PA6, the LT-FDC composites had increased tensile modulus (E_t) and storage modulus (E′) at 120 °C by up to 32% and 50%, respectively, while the tensile strength (σ_m) decreased by 20%.