Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 298, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.123868
Keywords
Wood; Organo-montmorillonite; Hyperbranched polyacrylate; Exfoliated structure; Chemical modification
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Funding
- National Natural Science Foundation of China [31800470]
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A novel waterborne hyperbranched polyacrylate emulsion was synthesized and used to modify wood, improving wood properties and reducing volatile organic compounds content.
A novel waterborne hyperbranched polyacrylate (HBPA) emulsion containing exfoliated organomontmorillonite (OMMT) was synthesized and used to modify wood. The thus-modified wood was characterized and tested. Comparing with linear polyacrylate (PA), the HBPA had smaller particle size and lower viscosity. Part of MMT layers and HBPA successfully entered into wood cell walls. After heating, the hydrophobic HBPA formed a layer of film, which benefited to the highly improved properties of wood. The content of volatile organic compounds (VOCs) of modified wood was lower than that of the unmodified wood. All the results suggested the modified wood was prospective for structural materials. @ 2021 Elsevier Ltd. All rights reserved.
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