Development and characterization of innovative biopolymer foams

11th Hungarian Conference on Materials Science

Litauszki, K.^1 ; Kmetty, Á.^1,2

Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Polymer Engineering, Budapest, Hungary^1

MTA-BME Research Group for Composite Science and Technology, Budapest, Hungary^2

关键词: Cell structure;    Chemical foaming agent;    Poly lactic acid;    Polymer systems;    Renewable resource;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/426/1/012031/pdf
DOI  :  10.1088/1757-899X/426/1/012031

来源: IOP

【 摘 要 】

Our development goal was to create foamed polymer systems based on biodegradable and renewable resource-based polymers. We used polylactic acid (PLA) and several types of chemical foaming agents (endothermic and exothermic), and produced foam samples by extrusion. We characterized and analyzed the foam samples with a wide range of tests (determining the cell structure, void fraction, compressive strength, etc.). Based on our tests, we showed the difference between the foaming agents and produced PLA-based foams with a void fraction of 57%.