欢迎访问林业科学,今天是

林业科学 ›› 1995, Vol. 31 ›› Issue (1): 56-59.

• 论文及研究报告 • 上一篇    下一篇

影响木材表面自由基的几个因素

赵宝忱,韩士杰,苏润洲   

  1. 东北林业大学 哈尔滨 150040
  • 收稿日期:1993-12-09 出版日期:1995-01-25 发布日期:1995-01-25

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

摘要:

应用电子自旋共振(ESR)波谱仪, 在实验的基础上定性或半定量地研究了在电磁辐射、水热条件、氧及臭氧等因子作用下红松试材表面自由基浓度的变化。结果表明, 诸因子均能诱发太材表面自由基的形成, 导致试材表面材质的劣化; 以电磁辐射的紫外光波段对木材化学组分的木素成分的降解产生的自由基为主。

关键词: 自由基, 紫外辐射, 木素

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-xadical, Ultraviolet radiation, Lignin