TY - JOUR N2 - The paper presents the impact of biodegradable material - polycaprolactone (PCL) on selected properties of moulding sands. A self-hardening moulding sands with phenol-furfuryl resin, which is widely used in foundry practice, and an environmentally friendly self-hardening moulding sand with hydrated sodium silicate where chosen for testing. The purpose of the new additive in the case of synthetic resin moulding sands is to reduce their harmfulness to the environment and to increase their “elasticity” at ambient temperature. In the case of moulding sands with environmentally friendly hydrated sodium silicate binder, the task of the new additive is to increase the elasticity of the tested samples while preserving their ecological character. Studies have shown that the use of 5% PCL in moulding sand increases their flexibility at ambient temperature, both with organic and inorganic binders. The influence of the new additive on the deformation of the moulding sands at elevated temperatures has also been demonstrated. L1 - http://journals.pan.pl/Content/106775/PDF/AFE%202_2018_06.pdf L2 - http://journals.pan.pl/Content/106775 PY - 2018 IS - No 2 DO - 10.24425/122498 KW - environmental protection KW - innovative materials and foundry materials KW - phenol-furfuryl resin KW - hydrated sodium silicate KW - biodegradable material A1 - Grabarczyk, A. A1 - Dobosz, S.M. A1 - Major-Gabryś, K. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol.18 DA - 2018 T1 - Modification of Foundry Binders by Biodegradable Material UR - http://journals.pan.pl/dlibra/publication/edition/106775 T2 - Archives of Foundry Engineering ER -