Leaching Characteristics of Copper in Copper Treated Wood

IRG/WP 03-30316

Mingliang Jiang, Junliang Liu, Daochun Qin, Yamei Wang, Zehui Jiang

The leaching characteristics of copper in copper treated bamboo and other wood species such as slash pine and poplar has been conducted in this paper according to AWPA M11-87 standard, the result indicates that: --Copper fixation rate of salts from organic acids such as citrate and oxalate and malate is less than other non-organic acid formulations. --Copper fixation rate of oven-dried bamboo samples is less than air-dried bamboo samples for all formulations containing copper. --Copper fixation rate of bamboo treated with ACQ containing dimethyl didecyl ammonium chloride (DDAC) is higher than other type of ACQ formulation containing benzalkonium chloride. Copper fixation rate of ammonia-based ACQ-B treated bamboo is higher than amine-based ACQ-D while in the same retention level. --Copper fixation rate in some formulations containing phosphate is higher than non-phosphate ones.


Keywords: Copper, fixation

Conference: 03-05-18/23 Brisbane, Australia


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