氨溶柠檬酸铜木材防腐剂的防腐性能和抗流失性

Decay and Leachability Resistance of Ammoniacal Copper Citrate(CC)

以大青杨(Populus ussuriensisKom.)为试材,采用常规的真空———加压法浸注试件,土壤木块法进行防腐实验,检测了氨溶柠檬酸铜木材防腐剂的防腐性能和抗流失性。结果表明,当柠檬酸铜的保持量分别为0.5、2.4、4.1、7.1kg/m3时,经白腐采绒革盖菌腐[Coriolus versicolor(L.ex Fr.)Quel]朽后,试样的质量损失率分别为14.2%、8.1%、5.3%和2.5%。在保持量为4kg/m3左右时,氨溶柠檬酸铜防腐剂的防腐性能不及百菌清,但比三唑酮和五氯酚钠好。另外,氨溶柠檬酸铜的抗流失性与3种铜-季铵盐防腐剂(ACQ)比较表明,其抗流失性不如铜-季铵盐防腐剂(ACQ)。

An experiment was conducted to study the decay and leachability resistance of ammoniacal copper citrate （CC） by the conventional vacuum-pressure impregnation method and the soil-block method for measuring decay resistance using Populus canadensis as testing material. Result showed that when the retentions of ammoniacal CC were 0.5, 2.4, 4. 1 and 7. 1 kg/ m^3, the rates of weight loss for decayed wood by Coriolus versicolor（ L. ex Fr. ） Quel were 14. 2%, 8.1%, 5.3% and 2. 5%, respectively. Soil-block decay tests were conducted with chlorothalonil （ CTL）, pentachlorophenol sodium （PCP-Na） and tradimefon. For the efficacy against white-rot fungi, ammoniacal CC was not as good as CTL, but was better than PCP- Na and tradimefon when the retention was about 4 kg/m^3. CC was not as good as ammoniacal copper-quaternary （ACQ） in leach resistance compared with three kinds of ACQ wood preservatives.