Bio-Based Polyurethane Composite Foams with Improved Mechanical, Thermal, and Antibacterial Properties

Materials
Sylwia CzłonkaArūnas Kremensas

Abstract

Among different organic fillers, the chemical composition of Syzygium aromaticum, commonly known as cloves, has great potential as a sustainable reinforcement for polymeric materials. In the study, grounded cloves were used as cellulosic filler for a novel polyurethane (PU) composite foams. Soybean oil-based PU composite foams were successfully reinforced with different concentrations (1, 2, and 5 wt%) of clove filler. PU foams were examined by rheological behavior, processing parameters, cellular structure (scanning electron microscopy analysis), mechanical properties (compression test, impact test, three-point bending test), thermal properties (thermogravimetric analysis), viscoelastic behavior (dynamic mechanical analysis) as well as selected application properties (apparent density, dimensional stability, surface hydrophobicity, water absorption, color characteristic). In order to undertake the disc diffusion method, all PU composites were tested against selected bacteria (Escherichia coli and Staphylococcus aureus). Based on the results, it can be concluded that the addition of 1 and 2 wt% of clove filler leads to PU composite foams with improved compression strength (improvement by ≈18% for sample PU-1), greater flexural ...Continue Reading

References

Apr 25, 2007·Journal of Agricultural and Food Chemistry·Claudie Dhuique-MayerMarie Josephe Amiot
Aug 19, 2007·Bioresource Technology·Ryohei TanakaHyoe Hatakeyama
Sep 10, 2013·Acta Biomaterialia·Shida MiaoSongping Zhang
Oct 4, 2017·Polymer·Zoran S PetrovićJan Ilavsky
Sep 29, 2018·Materials·Nuno V GamaAna Barros-Timmons
Apr 10, 2019·Polymers·Sylwia CzłonkaSaulius Vaitkus
Jun 30, 2019·Polymers·Anna StrąkowskaKrzysztof Strzelec
Sep 5, 2019·Polymers·Joanna Paciorek-SadowskaŁukasz Apiecionek

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Methods Mentioned

BETA
dynamic light scattering
infrared spectroscopy
scanning electron microscopy
rheology

Software Mentioned

ImageJ
SCA

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