Structure and performance properties of environmentally-friendly biocomposites based on poly(ɛ-caprolactone) modified with copper slag and shale drill cuttings wastes

Aleksander Hejna; Katarzyna Piszcz-Karaś; Natalia Filipowicz; Hubert Cieśliński; Jacek Namieśnik; Mariusz Marć; Marek Klein; Krzysztof Formela

doi:10.1016/j.scitotenv.2018.05.385

Structure and performance properties of environmentally-friendly biocomposites based on poly(ɛ-caprolactone) modified with copper slag and shale drill cuttings wastes

Abstract

The potential application of two types of industrial wastes, drill cuttings (DC) and copper slag (CS), as silica-rich modifiers of poly(ɛ-caprolactone) (PCL) was investigated. Chemical structure and physical properties of DC and CS fillers were characterized using X-ray diffractometer, X-ray fluorescence spectroscopy, particle size and density measurements. PCL/DC and PCL/CS composites with a variable content of filler (5 to 50 parts by weight) were prepared by melt compounding in an internal mixer. It was observed that lower particle size of DC filler enhanced processing of biocomposites comparing to CS filler. Smaller particles of DC filler and thus the higher specific surface area, enabled better encapsulation of filler by polymer chains, hence lower porosity and consequently higher tensile properties comparing to PCL/CS biocomposites. It was noticed, that the impact of waste filler characteristics on tensile properties became negligible at higher loadings. This indicates weak interactions between waste filler and PCL matrix, due to aggregation of filler particles and formulation of voids in phase boundary. This phenomenon was confirmed by scanning electron microscopy, headspace analysis and thermogravimetric analysis. Microbial tests revealed that prepared biocomposites show no toxic effect towards analyzed bacterial strains, therefore could be considered as environmentally-friendly.

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Authors (8)

Aleksander Hejna dr inż.
- TECH-PLAST Aleksadner Hejna Rotmanka
Katarzyna Piszcz-Karaś dr inż.
Natalia Filipowicz
Hubert Cieśliński dr hab. inż.
Jacek Namieśnik prof. dr hab. inż.
Mariusz Marć dr hab. inż.
Marek Klein dr inż.
- Instytut Maszyn Przepływowych PAN Zakład Energii Odnawialnych
Krzysztof Formela dr inż.

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: SCIENCE OF THE TOTAL ENVIRONMENT no. 640-641, pages 1320 - 1331,
ISSN: 0048-9697
Language:: English
Publication year:: 2018
Bibliographic description:: Hejna A., Piszcz-Karaś K., Filipowicz N., Cieśliński H., Namieśnik J., Marć M., Klein M., Formela K.: Structure and performance properties of environmentally-friendly biocomposites based on poly(ɛ-caprolactone) modified with copper slag and shale drill cuttings wastes// SCIENCE OF THE TOTAL ENVIRONMENT. -Vol. 640-641, (2018), s.1320-1331
DOI:: Digital Object Identifier (open in new tab) 10.1016/j.scitotenv.2018.05.385
Verified by:: Gdańsk University of Technology