Mechanical Properties and Structure of Reactive Rotationally Molded Polyurethane - Basalt Powder Composites
[ 1 ] Instytut Technologii Materiałów, Wydział Budowy Maszyn i Zarządzania, Politechnika Poznańska | [ 2 ] Wydział Budowy Maszyn i Zarządzania, Politechnika Poznańska | [ P ] employee | [ S ] student
2019
chapter in monograph / paper
english
- polyurethane
- rotational molding
- composite
- mechanical properties
- basalt powder
EN In this study, basalt powder (BP) was used as a natural inorganic waste filler from mining industry to modify polyurethane (PU) formed by reactive rotational molding technology. The thermoset polymer was filled with 10, 20 and 30 wt% of BP. The influence that the inorganic filler had on the mechanical properties of polyurethane was analyzed by means of a static tensile test and Shore D hardness measurement. Adding BP influenced the mechanical properties and resulted in an increase of elasticity modulus and hardness improvement. The impact of BP on the PU’s mechanical properties was discussed in relation to the structure changes observed with an optical microscopy. The quality of the rotomolded castings was assessed by a side wall thickness analysis. It was found that adding the inorganic filler provoked the formation of a foamed structure that caused a strong non-uniform wall thickness of the castings.
03.05.2019
601 - 609
20