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Preparation of Chemically Modified Lignin-Reinforced PLA Biocomposites and Their 3D Printing Performance
| Content Provider | MDPI |
|---|---|
| Author | Hong, Seo-Hwa Park, Jin Kim, Oh Hwang, Seok-Ho |
| Copyright Year | 2021 |
| Description | Using a simple esterification reaction of a hydroxyl group with an anhydride group, pristine lignin was successfully converted to a new lignin (COOH-lignin) modified with a terminal carboxyl group. This chemical modification of pristine lignin was confirmed by the appearance of new absorption bands in the FT-IR spectrum. Then, the pristine lignin and COOH-lignin were successfully incorporated into a poly(lactic acid) (PLA) matrix by a typical melt-mixing process. When applied to the COOH-lignin, interfacial adhesion performance between the lignin filler and PLA matrix was better and stronger than pristine lignin. Based on these results for the COOH-lignin/PLA biocomposites, the cost of printing PLA 3D filaments can be reduced without changing their thermal and mechanical properties. Furthermore, the potential of lignin as a component in PLA biocomposites adequate for 3D printing was demonstrated. |
| Starting Page | 667 |
| e-ISSN | 20734360 |
| DOI | 10.3390/polym13040667 |
| Journal | Polymers |
| Issue Number | 4 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-02-23 |
| Access Restriction | Open |
| Subject Keyword | Polymers Paper and Wood Poly(lactic Acid) Lignin Maleic Anhydride Chemical Modification 3d Printing Filament |
| Content Type | Text |
| Resource Type | Article |
