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    Author(s): Yanxin Wang; John Simonsen; Carlos Pascoal Neto; Joao Rocha; Timothy G. Rials; Eric Hart
    Date: 1996
    Source: Journal of Applied Polymer Science 62:501-508
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.4 MB)


    The reaction of boric acid with wood fibers in a polymer melt was examined using 13C-nuclear magnetic resonance (NMR), 11B-NMR. differential scanning calorimetry, dynamic mechanical analysis, and component extraction and by the determination of material properties. Samples were blended at 350 and 380°F in a roll mill. The use of a plasticizer in the melt to facilitate the reaction of the acid with the wood fiber was studied. NMR data showed that no significant reaction occurred between the boric acid and the polystyrene. Experimental evidence supports the reaction of boric acid with wood components. The ultimate strength of the composites was either reduced or not significantly altered by the reaction, depending upon conditions.

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    Wang, Yanxin; Simonsen, John; Neto, Carlos Pascoal; Rocha, Joao; Rials, Timothy G.; Hart, Eric. 1996. The reaction of boric acid with wood in a polystyrene matrix. Journal of Applied Polymer Science 62:501-508

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