| Title: | Structure and performance properties of environmentally-friendly biocomposites based on poly(varepsilon-caprolactone) modified with copper slag and shale drill cuttings wastes |
| Author(s): | Hejna A; Piszcz-Karas K; Filipowicz N; Cieslinski H; Namiesnik J; Marc M; Klein M; Formela K; |
| Address: | "Tech-Plast Aleksander Hejna, Rotmanka, Poland. Department of Chemical Technology, Gdansk University of Technology, Gdansk, Poland. Department of Molecular Biotechnology and Microbiology, Gdansk University of Technology, Gdansk, Poland. Department of Analytical Chemistry, Gdansk University of Technology, Gdansk, Poland. Department of Analytical Chemistry, Gdansk University of Technology, Gdansk, Poland; Department of Analytical and Ecological Chemistry, Faculty of Chemistry, Opole University, Opole, Poland. Renewable Energy Department, The Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdansk, Poland. Department of Polymer Technology, Gdansk University of Technology, Gdansk, Poland. Electronic address: krzysztof.formela@pg.gda.pl" |
| DOI: | 10.1016/j.scitotenv.2018.05.385 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "The potential application of two types of industrial wastes, drill cuttings (DC) and copper slag (CS), as silica-rich modifiers of poly(varepsilon-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" |
| Keywords: | Biocomposites Copper slag Drill cuttings Industrial wastes Structure-property relationships Volatile organic compounds emissions; |
| Notes: | "PubMed-not-MEDLINEHejna, Aleksander Piszcz-Karas, Katarzyna Filipowicz, Natalia Cieslinski, Huber Namiesnik, Jacek Marc, Mariusz Klein, Marek Formela, Krzysztof eng Netherlands 2018/07/20 Sci Total Environ. 2018 Nov 1; 640-641:1320-1331. doi: 10.1016/j.scitotenv.2018.05.385. Epub 2018 Jun 18" |
