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    To evaluate the dimensional stability of phosphoramide-reacted wood, wood was reacted with a mixture which was derived from compounding phosphorus pentoxide and each of 12 amines including alkyl, halophenyl, and phenyl amines in N,N-dimethylformamide. Dimensional stability of such reacted wood was analyzed by antishrink efficiency (ASE) using the water-soak method. Volumetric swelling and equilibrium moisture content (EMC) of phosphoramide-reacted woods were also determined after being maintained at 27*C and 30% RH, 27*C and 65% RH, and 27oC and 90% RH for 21 d. The results revealed that phosphoramide-reacted woods had lower antishrink efficiency values than those of acetylated wood, expoxided wood, and isocyanated wood. Volumetric swelling and equilibrium moisture content of phosphoramide-reacted wood were increased when exposed to an environment with a higher relative humidity. Phosphoramides had less effect on improving the dimensional stability of wood.

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    Lee, Hong-Lin.; Chen, George C.; Rowell, Roger M. 2000. Effects of phosphoramides on wood dimensional stability. Taiwan journal of forest science. Vol. 15, no. 1 (2000).:p. 137-145 : ill.


    Dimensional stability, Moisture content, Swelling, Wood moisture, Shrinkage, Humidity, Phosphoramides

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