Thermomechanical properties of polypropylene-based lightweight composites modeled on the mesoscale

0482406 - FZÚ 2018 RIV US eng J - Článek v odborném periodiku
Dostálová, Darina - Kafka, Vratislav - Vokoun, David - Heller, Luděk - Matějka, L. - Kadeřávek, Lukáš - Pěnčík, J.
Thermomechanical properties of polypropylene-based lightweight composites modeled on the mesoscale.
Journal of Materials Engineering and Performance. Roč. 26, Oct (2017), s. 5166-5172. ISSN 1059-9495. E-ISSN 1544-1024
Grant CEP: GA ČR GB14-36566G
Institucionální podpora: RVO:68378271 ; RVO:68378297
Klíčová slova: building material * composite * creep tests * mesomechanical model * thermal insulation
Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impakt faktor: 1.340, rok: 2017

A waste-based particle polymer composite (WPPCs) made of foam glass and polypropylene was developed as a low-cost construction material. Thermomechanical properties of the composite, including creep properties of WPPC and polypropylene binder, were examined. By adding a relatively small amount of polypropylene to foam glass (about 2:8 in volume parts), the maximum bearing capacity at room temperature of the composite increased from 1.9 (pure foam glass) to 15 MPa. A significant creep strain accumulated during compressive loading of WPPC (5 MPa) in the first 2000 s at elevated temperatures (40, 60 °C). In the study, Kafka’s mesomechanical model was used to simulate creep strain changes in time for various temperatures. The applicability of Kafka’s mesomechanical model for simulating creep properties of the studied composite material was demonstrated.

Trvalý link: http://hdl.handle.net/11104/0277804