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Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (04): 82-87.doi: 10.11707/j.1001-7488.20070414

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Decay Resistance of Bamboo Wood Treated with Chitosan-Metal Complexes against the White-Rot Fungus Coriolous versicolor

Sun Fangli1,2,Duan Xinfang3,Mao Shengfeng1,Wen Guifeng1,Wang Shanshan1   

  1. 1.Engineering School of Zhejiang Forestry College Lin'an 311300; 2. Polymer Science Department of Zhejiang University Hangzhou 311300; 3.Research Institute of Wood Industry,CAF Beijing 100091
  • Received:2005-09-05 Revised:1900-01-01 Online:2007-04-25 Published:2007-04-25

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Abstract:

The leachability and decay resistance of 4-year-old bamboo wood treated with chitosan copper/zinc complexes (CCC and CZC) were reported in this paper. Results showed as follows: 1) To chitosan-metal complexes(CCC and CZC), the amount of metal ion fixed in bamboo wood was slightly higher than CCB, while significantly higher than the corresponding metal salt. 2) The decay resistance of CCC against Coriolous versicolor was better than CCB. When the metal ion retention in bamboo wood reached 6.35 kg·m-3, mass loss of the treated bamboo wood was 0 percent. 3) The decay resistance of CZC against Coriolous versicolor was nearly equivalent to that of CCC, and remarkably better than that of only treated by relevant metal salts. When the metal ion retention in bamboo wood exceeded 2.41 kg·m-3, mass loss of the treated bamboo wood tended to be 0 percent.

Key words: bamboo wood, chitosan metal complex, leaching-resistance, decay resistance