Journal
WOOD SCIENCE AND TECHNOLOGY
Volume 55, Issue 5, Pages 1401-1417Publisher
SPRINGER
DOI: 10.1007/s00226-021-01317-2
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Funding
- National Natural Science Foundation of China [31890772]
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The two-step approach proposed in the study significantly improved the interface bonding between the hydrophobic polymer and the wood matrix by the formation of covalent bonds, leading to superior properties of the wood-polystyrene composites compared to wood treated with styrene alone.
Wood-polymer composites (WPC) are commonly prepared by the impregnation and polymerization of active monomers in wood matrix. Due to the inferior interfacial compatibility between wood matrix and hydrophobic polymer interface, the treatment method could not significantly improve the dimensional stability of wood and make full use of the properties of polymer. In this study, a two-step approach was proposed to overcome this problem. The interface bonding between hydrophobic polymer and wood matrix was significantly improved by the formation of covalent bonds. The anti-swelling efficiency (65%), modulus of rupture (120.1 MPa), modulus of elasticity (10.9 GPa) and compressive strength (103.6 MPa) of the wood-polystyrene composites were superior to the wood treated with styrene alone.
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