Sustainable Building and Packaging Materials from Alginate and Expanded Perlite
Author Information
Author(s): Damjanović Radmila, Vuksanović Marija M., Petrović Miloš, Radovanović Željko, Stavrić Milena, Jančić Heinemann Radmila, Živković Irena
Primary Institution: Faculty of Technology and Metallurgy, University of Belgrade
Hypothesis
Can alginate-based biocomposite materials reinforced with expanded perlite and various additives improve mechanical properties for sustainable applications?
Conclusion
The study found that specific combinations of chitosan and glycerol significantly enhance the mechanical properties of alginate-expanded perlite composites.
Supporting Evidence
- The addition of chitosan improved the elastic modulus of the composites.
- Specimens without plasticizers showed increased elastic modulus values.
- Using lower percentages of plasticizers enhanced the mechanical properties.
- Water absorption was minimized with higher glycerol content.
Takeaway
Researchers created new eco-friendly materials from seaweed and volcanic rock that can be used for packaging and building, which are strong and good for the environment.
Methodology
The study involved preparing 24 different composite formulations of alginate and expanded perlite with various additives, followed by mechanical testing using the Brazilian test.
Limitations
Some specimens displayed structural instability and were excluded from testing.
Digital Object Identifier (DOI)
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