Fabrication and Characterization of PLA/SiO2/Al2O3Composites Prepared by Sol-Gel Process
| Autor: | Chien-En Lin, Jyh-Horng Wu, Peir-An Tsai, Wei-Ming Chiu |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Thermogravimetric analysis
Fabrication Materials science Polymers and Plastics General Chemical Engineering Materials Science (miscellaneous) Sio2 al2o3 Dynamic mechanical analysis Thermal expansion chemistry.chemical_compound Polylactic acid chemistry Materials Chemistry Degradation (geology) Composite material Sol-gel |
| Zdroj: | Polymer-Plastics Technology and Engineering. 52:1488-1495 |
| ISSN: | 1525-6111 0360-2559 |
| DOI: | 10.1080/03602559.2013.820751 |
| Popis: | In this study, polylactic acid (PLA)/SiO2/Al2O3 composites were prepared using a sol-gel process. The influences of SiO2, Al2O3 and SiO2/Al2O3 content on the physical properties of the PLA composites were investigated. The experimental results showed that SiO2 and Al2O3 were uniformly distributed in the PLA matrix, and increased the storage modulus of the PLA. A thermochemical analysis (TMA) indicates that the coefficient of thermal expansion (CTE) values of PLA/SiO2 4%/Al2O3 1% were 225 times higher than that of PLA. A thermogravimetric analysis (TGA) indicated that the thermal degradation (Td) of PLA decreased following the addition of Al2O3; however, adding SiO2 does not significantly prevent the Td of PLA. |
| Databáze: | OpenAIRE |
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