Rotational Molding of Linear Low-Density Polyethylene Composites Filled with Wheat Bran - Publication - Bridge of Knowledge

Search

Rotational Molding of Linear Low-Density Polyethylene Composites Filled with Wheat Bran

Abstract

Application of lignocellulosic fillers in the manufacturing of wood polymer composites (WPCs) is a very popular trend of research, however it is still rarely observed in the case of rotational molding. The present study aimed to analyze the impact of wheat bran content (from 2.5 wt.% to 20 wt.%) on the performance of rotationally-molded composites based on a linear low-density polyethylene (LLDPE) matrix. Microscopic structure (scanning electron microscopy), as well as physico-mechanical (density, porosity, tensile performance, hardness, rebound resilience, dynamic mechanical analysis), rheological (oscillatory rheometry) and thermo-mechanical (Vicat softening temperature) properties of composites were investigated. Incorporation of 2.5 wt.% and 5 wt.% of wheat bran did not cause significant deterioration of the mechanical performance of the material, despite the presence of ‘pin-holes’ at the surface. Values of tensile strength and rebound resilience were maintained at a very similar level, while hardness was slightly decreased, which was associated with the porosity of the structure. Higher loadings resulted in the deterioration of mechanical performance, which was also expressed by the noticeable rise of the adhesion factor. For lower loadings of filler did not affect the rheological properties. However, composites with 10wt.% and 20 wt.% also showed behavior suitable for rotational molding. The presented results indicate that the manufacturing of thin-walled products based on wood polymer composites via rotational molding should be considered a very interesting direction of research.

Citations

  • 5 4

    CrossRef

  • 0

    Web of Science

  • 5 5

    Scopus

Authors (7)

Cite as

Full text

download paper
downloaded 158 times
Publication version
Accepted or Published Version
License
Creative Commons: CC-BY open in new tab

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
Polymers no. 12,
ISSN: 2073-4360
Language:
English
Publication year:
2020
Bibliographic description:
Hejna A., Barczewski M., Andrzejewski J., Kosmela P., Piasecki A., Szostak M., Kuang T.: Rotational Molding of Linear Low-Density Polyethylene Composites Filled with Wheat Bran// Polymers -Vol. 12,iss. 5 (2020), s.1004-
DOI:
Digital Object Identifier (open in new tab) 10.3390/polym12051004
Verified by:
Gdańsk University of Technology

seen 129 times

Recommended for you

Meta Tags