Journal
RSC ADVANCES
Volume 5, Issue 51, Pages 41230-41237Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra04999g
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Funding
- Fundamental Research Funds for the Central Universities in China [TD201114, BLYJ201510]
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In this study, a kind of layered double hydroxide, MgAl-CO3-LDH, was synthesised and its effects on the photostability of wood flour/polypropylene (WF/PP) composites during weathering were investigated. WF/PP composites with different LDH loading levels were prepared and tested in a QUV accelerated weathering tester for a total 960 h. The surface color, surface gloss, and flexural properties of the composites were tested, accompanied by characterizations using SEM, ATR-FTIR, and TG. The results indicated that (1) the flexural properties of the LDH-loaded composites were improved; (2) the composites containing LDH showed less discoloration, fewer surface cracks, and less loss of flexural strength and modulus than the control group; (3) LDH played a positive effect on alleviating the photo-oxidation process of WF/PP composites, confirming its UV-shielding effect; (4) LDH enhanced the thermal stability of the composites before and after weathering.
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