Southern Research Station

Title: The reaction of boric acid with wood in a polystyrene matrix

Author: Wang, Yanxin; Simonsen, John; Neto, Carlos Pascoal; Rocha, Joao; Rials, Timothy G.; Hart, Eric

Date: 1996

Source: Journal of Applied Polymer Science 62:501-508

Description: 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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Citation

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