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含三唑复合防腐剂及其竹处理材的金属腐蚀性能

王卿平 曹金珍 张景朋 蒋明亮

王卿平, 曹金珍, 张景朋, 蒋明亮. 含三唑复合防腐剂及其竹处理材的金属腐蚀性能[J]. 北京林业大学学报, 2019, 41(10): 128-136. doi: 10.13332/j.1000-1522.20190232
引用本文: 王卿平, 曹金珍, 张景朋, 蒋明亮. 含三唑复合防腐剂及其竹处理材的金属腐蚀性能[J]. 北京林业大学学报, 2019, 41(10): 128-136. doi: 10.13332/j.1000-1522.20190232
Wang Qingping, Cao Jinzhen, Zhang Jingpeng, Jiang Mingliang. Metal corrosion performance of triazole-containing compound preservatives and treated bamboo[J]. Journal of Beijing Forestry University, 2019, 41(10): 128-136. doi: 10.13332/j.1000-1522.20190232
Citation: Wang Qingping, Cao Jinzhen, Zhang Jingpeng, Jiang Mingliang. Metal corrosion performance of triazole-containing compound preservatives and treated bamboo[J]. Journal of Beijing Forestry University, 2019, 41(10): 128-136. doi: 10.13332/j.1000-1522.20190232

含三唑复合防腐剂及其竹处理材的金属腐蚀性能

doi: 10.13332/j.1000-1522.20190232
基金项目: “十三五”国家重点研发计划(2017YFD0600803)
详细信息
    作者简介:

    王卿平,博士生。主要研究方向:木材科学与技术。Email:wongchingping@outlook.com  地址:100091 北京市海淀区香山路东小府1号中国林业科学研究院木材工业研究所

    责任作者:

    蒋明亮,研究员。主要研究方向:木材防腐。Email:jiangml@caf.ac.cn  地址:同上

  • 中图分类号: S781.9

Metal corrosion performance of triazole-containing compound preservatives and treated bamboo

  • 摘要: 目的探究三唑复合防腐剂及其竹处理材对金属连接件的腐蚀性和适用性,为选择处理设备材质和竹处理材防水涂层提供参考。方法参考GB/T 34726—2017《木材防腐剂对金属的腐蚀速率测定方法》和GB/T 34724—2017《接触防腐木材的金属腐蚀速率加速测定方法》标准,测定复合防腐剂(有效成分:丙环唑−戊唑醇(PPZ-TEB)、碘丙炔基正丁氨基甲酸酯(IPBC)、异噻唑啉酮(CMIT-MIT))及其毛竹处理材对Q235碳钢、65Mn弹簧钢、304不锈钢、201不锈钢、H59黄铜、T2紫铜、7075铝合金和6061铝合金的金属腐蚀性。通过在竹材−金属组件表面涂刷水性聚氨酯漆、水性丙烯酸漆和木蜡油考察表面涂饰对防腐蚀效果的影响。结果(1)经复合防腐剂浸泡加速腐蚀后,304不锈钢、201不锈钢、6061铝合金和7075铝合金的金属腐蚀速率均为0;Q235碳钢和65Mn弹簧钢的金属腐蚀速率随时间增加保持不变,且腐蚀速率离散性前期较大,后期逐渐减小;H59黄铜和T2紫铜在制剂A(PPZ-TEB)、C(PPZ-TEB/CMIT-MIT)、CK1(CMIT-MIT)和CK2(素材)中浸泡腐蚀和与竹处理材接触腐蚀的金属腐蚀速率均为0,而浸泡在制剂B(PPZ-TEB/IPBC)中发生轻微腐蚀。(2)在与竹处理材接触加速腐蚀后,304不锈钢、201不锈钢、H59黄铜和T2紫铜的金属腐蚀速率为0;Q235碳钢和65Mn弹簧钢腐蚀速率随时间增加而减小并趋于平缓,且腐蚀程度明显大于防腐剂对金属的腐蚀;6061铝合金和7075铝合金发生轻微腐蚀。(3)不同复合制剂及其竹处理材对Q235碳钢和65Mn弹簧钢的腐蚀性分别为CK1 > C > B > A > CK2,C > CK1 > B > A > CK2。(4)在Q235碳钢和65Mn弹簧钢的竹材−金属组件表面涂饰水性聚氨酯漆、水性丙烯酸漆和木蜡油涂层后,竹处理材的金属腐蚀速率均有所下降,且木蜡油较水性聚氨酯漆和水性丙烯酸漆的防腐蚀效果更优。结论含三唑复合防腐剂及其竹处理材对304不锈钢和201不锈钢均无腐蚀。复合防腐剂及其竹处理材对H59黄铜和T2紫铜基本无腐蚀。复合防腐剂对Q235碳钢和65Mn弹簧钢的腐蚀速率随时间增加保持不变,而竹处理材腐蚀速率随时间增加而减小并趋于平缓,且前者小于后者。复合防腐剂对7075铝合金和6061铝合金无腐蚀,而竹处理材有轻微腐蚀。不同复合制剂及其竹处理材对Q235碳钢和65Mn弹簧钢的腐蚀性均为C > B > A。表面涂饰可降低竹处理材对金属的腐蚀性。

     

  • 图  1  竹材−金属组件示意图

    Figure  1.  Illustration of bamboo-metal assembly

    图  2  含三唑复合防腐剂和竹处理材腐蚀前后的金属表面

    Figure  2.  Metal surfaces before and after corrosion of triazole-containing compound preservatives and treated bamboo

    图  3  含三唑复合防腐剂的金属腐蚀速率

    Figure  3.  Metal corrosion rates of triazole-containing compound preservatives

    图  4  竹处理材的金属腐蚀速率

    Figure  4.  Metal corrosion rates of treated bamboo

    图  5  表面涂饰后竹处理材的金属腐蚀速率

    Figure  5.  Metal corrosion rates of treated bamboo after coating

    图  6  涂层厚度

    Figure  6.  Thicknesses of coating

    表  1  含三唑复合防腐剂有效成分质量分数

    Table  1.   Mass fraction of active ingredients of triazole-containing compound preservatives

    编号
    No.
    有效成分
    Active ingredient
    质量分数
    Mass fraction
    A 丙环唑−戊唑醇 PPZ-TEB 0.06%
    B 丙环唑−戊唑醇/
    碘丙炔基正丁氨基甲酸酯
    PPZ-TEB/IPBC
    0.06%/0.12%
    C 丙环唑−戊唑醇/异噻唑啉酮
    PPZ-TEB/CMIT-MIT
    0.06%/0.3%
    CK1 异噻唑啉酮 CMIT-MIT 0.3%
    CK2
    注:PPZ∶TEB = 1∶1 (质量比),CMIT∶MIT = 3∶1 (质量比)。CK2为未添加防腐剂的水。Notes: PPZ∶TEB = 1∶1 (mass ratio), CMIT∶MIT = 3∶1 (mass ratio). CK2 is water without any preservatives.
    下载: 导出CSV

    表  2  防腐剂的载药量

    Table  2.   Retention of preservatives

    编号 No.载药量 Retention/(kg·m− 3)标准差 SD/(kg·m− 3)
    A 0.129 2 (PPZ-TEB) 0.037 8 (PPZ-TEB)
    B 0.135 8 (PPZ-TEB),
    0.271 6 (IPBC)
    0.031 4 (PPZ-TEB),
    0.062 9 (IPBC)
    C 0.134 9 (PPZ-TEB),
    0.674 6 (CMIT-MIT)
    0.031 5 (PPZ-TEB),
    0.157 7 (CMIT-MIT)
    CK1 0.668 7 (CMIT-MIT) 0.168 4 (CMIT-MIT)
    下载: 导出CSV
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  • 收稿日期:  2019-05-20
  • 修回日期:  2019-06-26
  • 网络出版日期:  2019-08-20
  • 刊出日期:  2019-10-01

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