期刊
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION
卷 19, 期 7, 页码 637-647出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1023666X.2014.953747
关键词
Thermal degradation; Tensile properties; Polypropylene carbonate; Fractographs; Biocomposites; Eggshell powder
资金
- Faculty of Engineering and Built Environment, University of Johannesburg, South Africa
- Council of Scientific and Industrial Research of India [21(0842)11/EMR-II]
In recent years, biodegradable polymer composites have attracted considerable attention due to inadequate and depleting petroleum resources and to replace nonbiodegradable synthetic polymers posing environment problems. In the present work, biodegradable composites based on polypropylene carbonate (PPC)/eggshell powder (ESP) were prepared by the solution-casting method using chloroform as the solvent. Polypropylene carbonate was loaded with 1 to 5wt% of eggshell powder (particle size<40 mu m). Characterization of the composites was accomplished by Fourier transform-infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), and X-ray diffraction (XRD) analysis, and morphological studies were carried out by optical microscopy (OM) and scanning electronic microcopy (SEM). The tensile properties of the composite films were found to be higher than those of neat PPC matrix and increased with ESP content up to 4wt.% and then decreased. This work offers an easy path to manufacture ecofriendly PPC/eggshell powder composite films with improved properties, and reducing, in some cases, the demand for petroleum-based plastics such as polyolefins.
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