Stiff Biodegradable Polylactide Composites with Ultrafine Cellulose Filler |
| |
Authors: | Michal Cichorek Ewa Piorkowska Nelli Krasnikova |
| |
Institution: | 1.Centre of Molecular and Macromolecular Studies,Polish Academy of Sciences,Lodz,Poland;2.Topchiev Institute of Petrochemical Synthesis,Russian Academy of Sciences,Moscow,Russia |
| |
Abstract: | Polylactide (PLA) composites with 10–30 wt% of commercial fine grain filler of native cellulose were prepared by melt-mixing, and examined. The composite films had esthetic appearance, glossy surface, creamy color and density close to that of neat PLA. Good dispersion of the filler in PLA matrix was achieved. The composites were stiffer than neat PLA; in the glassy region the storage modulus increased by approx. 30 %. The tensile strength of the composite materials in the temperature range from 25 to 45 °C was similar to that of neat PLA. No marked decrease in molar mass of PLA in the composites occurred during processing in comparison to neat PLA. Moreover, thermogravimetry experiments demonstrated good thermal stability of the composites; 5 % weight loss occurred well above 300 °C. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|