多元羧酸与木材交联反应对木材振动特性的影响

doi:10.11707/j.1001-7488.20040623

Abstract

Abstract:

Polycarboxylic acids acted as esterification agents and inorganic salts acted as catalyst in the research of wood crosslinking reaction. The vibrancy efficiency of treated wood were analyzed. The results showed that vibrancy efficiency of Picea sitchensis and Chamaecyparis iawsoniana. Reacted by 1,2,3,4-butanetetracarboxylic acid (BTCA) changed: loss tangent (tan δ) went down in longitudinal and radial,the changes of specific dynamic Young’s modules (E/ρ) were not distinct and abnormity with rise ofantiswelling efficiency(ASE)in the radial direction, the changes of acoustic radiation damping. E/ρ³ were similar to specific dynamic Young’s modules (E/ρ), the tan δ/Ewent down in longitudinal and radial.

Key words: Polycarboxylic acids, Wood, Crosslinking reaction, Vibrancy efficiency

Fang Guizhen. Infection in Vibrancy Efficiency of Wood by Crosslinking Reaction between Wood and Polycarboxylic Acids[J]. Scientia Silvae Sinicae, 2004, 40(6): 134-137.

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Infection in Vibrancy Efficiency of Wood by Crosslinking Reaction between Wood and Polycarboxylic Acids

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