Effect of the Citric Acid as Blowing Agent on the Compressive Properties and Morphology of PLA/ENR Blend Foams

Abstract:

The effect of a blowing agents that affected Polylactic acid (PLA) and Epoxidized natural rubber (ENR) the blowing agents composed of citric acid (CA) and sodium hydrogen carbonate (NaHCO3) mixing by twin screw extruder with co-rotation screw. The properties of biodegradable foams were investigated. Blended foams of all composition were prepared by using compression molding at 200°C using different proportions of PLA, ENR, CA and NaHCO3. Mechanical properties of the samples were characterized by using universal testing machine. Thermal properties including Glass transition temperature (Tg), crystallization temperature (Tc) and melting temperature (Tm) were examined by using differential scanning calorimetry (DSC). Physical properties including morphology and density of blended foams were also investigated and morphological properties were studied with a scanning electron microscope (SEM).

• Periodical: Applied Mechanics and Materials (Volume 873)
• Pages: 95-100
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.873.95
• Online since: November 2017
• Authors: Sumate Ouipanich, Thiti Kaisone, Pran Hanthanon, Chanon Wiphanurat, Yupawan Thongjun, Tarinee Nampitch*
• Keywords: Biodegradable Foams, Blends, Citric Acid, Epoxidized Natural Rubber (ENR), Poly(lactic acid)

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