Design of wood/montmorillonite (MMT) intercalation nanocomposite |
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Authors: | Lü?Wenhua Email author" target="_blank">Zhao?Guangjie?Email author |
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Institution: | (1) College of Material Science and Technology, Beijing Forestry University, 100083 Beijing, P. R. China |
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Abstract: | Studying new wood composites through nano science and technology (NSC) will develop new compounding theory of wood, and accelerate
the combination of new technology, wood science, material science and other disciplines. The compounding of wood and inorganic
MMT on nanoscale molecular level has high potential to greatly improve the mechanical properties, fire retardance, abrasion
resistance, decay resistance, dimensional stability and other properties of wood. Based on the great achievements of polymer/montmorillonite
(MMT) nanocomposites, this paper reviewed nano intercalation compounding methods (i.e. in-situ intercalative polymerization
and direct polymer intercalation), and discussed the structure, properties and modification of montmorillonite (MMT). According
to the main chemical components and particular structure of wood, the authors discussed the liquefaction and plasticization
of wood, compared the dissolvability and meltability between wood and polymer, and then systematically put forward the basic
idea, technological processes and schematic diagram to prepare wood/MMT nanocomposites (WMNC). The key technology to prepare
WMNC is either to introduce delaminated MMT nanolayers into wood with the help of some intermediate polymers, or to obtain
liquefied wood or plasticized wood from the complicated natural composite. It is applicable and effective to realize wood/MMT
nanoscale compounding with the help of proper intercalation agent and medium polymer through the proposed “one-step” or “two-step”
impregnating processes.
Supported by the National Natural Science Foundation of China (Grant No. 30271055)] |
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Keywords: | wood Montmorillonite (MMT) nano intercalation compounding nanocomposites |
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