COMPARISON OF COPPER LEACHING FROM ALKALINE COPPER QUAT TYPE-D TREATED CHINESE FIR AND MONGOLIAN SCOTS PINE AFTER DIFFERENT POSTTREATMENTS

被引：0
作者：
Yu, Lili [1 ]
Cao, Jinzhen [1 ]
Cooper, Paul [2 ]
Tang, Zhenzhong [1 ]
机构：
[1] Beijing Forestry Univ, Dept Wood Sci & Technol, Beijing 100083, Peoples R China
[2] Univ Toronto, Fac Forestry, Toronto, ON M5S 3B3, Canada
来源：
WOOD AND FIBER SCIENCE | 2010年 / 42卷 / 04期
关键词：
Alkaline copper quat (ACQ); wood species; copper leaching; posttreatment; FIXATION; WOOD;
D O I：
暂无
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Chinese fir (Cunninghamia lanceolata Hook) and Mongolian Scots pine (Pinus sylvestris Linn vat mongolica Litv) sapwood were treated with alkaline copper gum type D (ACQ-D) solutions at two concentration levels (0 5 and 11%) followed by three posttreatments oven-drying, conditioning in a humidity chamber, or exposed to hotline water The effects of treatment on copper leaching from ACQ-D-treated wood were investigated by performing tests according to AWPA E11-06 Analysis of chemical composition and pH values were determined to evaluate the effects of wood species on copper leaching The results showed that copper leaching I mm ACQ-D-treated Mongolian Scots pine without posttreatment was lower than that of treated Chinese fir However, after posttreatment. more copper leaching was observed from ACQ-D-treated Mongolian Scots pine than Chinese fir For example, after conditioning posttreatment, the percentage of copper leached from 11% ACQ-D-treated Chinese fir decreased 58 6 to 1 8%. while for Mongolian Scots pine, it decreased 49 5 to 19 4% The difference was considered to be related to different chemical compositions and pH levels
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页码：444 / 449
页数：6
相关论文
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