<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Composites based on a polypropylene matrix with coffee ground powder, wood flour and tuff of a mass weight of 12.5wt% were produced by the method of injection moulding. Tests of tensile and bending strength properties were carried out and Charpy impact was determined at three temperatures: -24°C, 22°C and 80°C. Scanning electron microscopy (SEM) images were taken to assess the effects of reinforcement and homogenization of mixtures and to determine the characteristics of the microstructure. Composites with 12.5wt% coffee ground powder, wood flour and tuff were characterized by an increase the elastic modulus. Tensile strength slightly decreased for composites with ground coffee grains and tuff.</p></abstract>

Composites based on a polypropylene matrix with coffee ground powder, wood flour and tuff of a mass weight of 12.5wt% were produced by the method of injection moulding. Tests of tensile and bending strength properties were carried out and Charpy impact was determined at three temperatures: -24°C, 22°C and 80°C. Scanning electron microscopy (SEM) images were taken to assess the effects of reinforcement and homogenization of mixtures and to determine the characteristics of the microstructure. Composites with 12.5wt% coffee ground powder, wood flour and tuff were characterized by an increase the elastic modulus. Tensile strength slightly decreased for composites with ground coffee grains and tuff.

Composites Based on Polypropylene Modified with Natural Fillers to Increase Stiffness

Institute of Material Engineering, Faculty of Mechanical Engineering

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Composites based on a polypropylene matrix with coffee ground powder, wood flour and tuff of a mass weight of 12.5wt% were produced by the method of injection...

Composites Based on Polypropylene Modified with Natural Fillers to Increase Stiffness

Publié en ligne: 16 mai 2020

Pages: 187 - 195

Reçu: 14 nov. 2018

DOI: https://doi.org/10.4467/2353737XCT.19.013.10053

Mots clés
polypropylene, natural fillers, mechanical properties, composites

© 2020 Anna Kufel et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Composites Based on Polypropylene Modified with Natural Fillers to Increase Stiffness

Publié en ligne: 16 mai 2020

Pages: 187 - 195

Reçu: 14 nov. 2018

DOI: https://doi.org/10.4467/2353737XCT.19.013.10053

Mots cléspolypropylene, natural fillers, mechanical properties, composites

© 2020 Anna Kufel et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Mots clés
polypropylene, natural fillers, mechanical properties, composites