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On the possibility of replacement of calcium carbonate by a high-performance, economically viable filler in polyethylene composites
- Publication Year :
- 2021
- Publisher :
- Sage, 2021.
-
Abstract
- Calcium carbonate (CaCO3) is frequently added to polyethylene (PE) as a filler to reduce costs. An alternative to CaCO3, calcium fluoride (CaF2) was proposed in this research. PE/CaCO3 and PE/CaF2 composites in a wide composition range (0–60 wt.%) were prepared through a parallel twin screw extruder. Results indicated better interaction of CaF2 with PE matrix which improved samples yield stress. Statistical analysis showed the filler type was more influential factor on the yield stress while filler loading was not a statistically significant one. In contrast, crystallinity was strongly depended on the filler loading. The dynamic mechanical and rheological investigations revealed that PE/CaF2 composites had higher stiffness at ambient temperature and possessed lower viscosity below 40 wt.% of filler loading compared to PE/CaCO3 which could reduce the processing cost. Therefore, regarding its low price and good functional properties, CaF2 can be a promising alternative to CaCO3.
- Subjects :
- Injection molding
Filler (packaging)
Materials science
Circular economy
chemistry.chemical_element
02 engineering and technology
Polyethylene
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Fillers
0104 chemical sciences
chemistry.chemical_compound
Calcium carbonate
chemistry
Statistical analysis
Ceramics and Composites
Fluorine
Materials Research Institute AIT
Composite material
0210 nano-technology
Calcium fluoride
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....1425c39f03b404b150152393b93f72b2