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Scientia Silvae Sinicae ›› 1995, Vol. 31 ›› Issue (1): 56-59.

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A FEW FACTORS AFFECTING FREE-RADICAL OF WOOD SURFACE

Baochen Zhao,Shijie Han,Runzhou Su   

  1. North-east Forestry University Harbin 150040
  • Received:1993-12-09 Online:1995-01-25 Published:1995-01-25

Abstract:

The authors took Korean pine (Pinus koraiensis Sieb.) as sample wood and studied the change of free-radical concentration of the sample wood surface by means of these factors: electromagnetic radiation, water, heat, oxygen and ozone. The results showed that among above factors, the most important one which degraded the lignin and produced the free-radicals mainly is ultraviolet radiation (UV).

Key words: Free-radical, Ultraviolet radiation, Lignin