Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 2, Issue 4, Pages 706-717Publisher
AMER CHEMICAL SOC
DOI: 10.1021/sc400405v
Keywords
Biodegradable polymers; Renewable materials; Mechanical properties; Calcium carbonate; Nanocomposites
Categories
Funding
- NSF-CREST [1137681]
- Alabama EPSCoR [1158862]
- Direct For Education and Human Resources
- Division Of Human Resource Development [1137681] Funding Source: National Science Foundation
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Waste eggshells were used as a raw material to produce high surface area biocalcium carbonate nanoparticles using a combination of mechanochemical and ultrasonic irradiation techniques. High resolution transmission electron microscopy (HR-TEM) and X-ray analysis showed that the synthesis process was effective and yields only CaCO3 nanoparticles with high porosity. The bionanocomposites were prepared by infusing three different weight percentages (1%, 2%, and 3%) of the calcium carbonate nanoparticles (CaCO3) in Bioplast GS 2189 thermoplastic polymer. Thermal analyses indicated that the 2% bionanocomposites are thermally more stable (by 15 degrees C) than the corresponding neat systems. Mechanical test results' of 2% bionanocomposite showed an approximately 35.3% and 30.5% increase in the flexural strength and modulus, respectively, over the pristine Bioplast GS 2189 polymer.
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