改性纳米复合防腐剂对木材耐腐性能的研究  

Study on Wood Decay Resistance of Modified Nanocomposite Preservatives

作　　者：陈晨 程旭 王立朝 许民[1] CHEN Chen;CHENG Xu;WANG Lichao;XU Min(College of Materials Science and Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学材料科学与工程学院,哈尔滨150040

出　　处：《森林工程》2022年第6期61-68,共8页Forest Engineering

基　　金：国家林业和草原局林业科学技术推广项目([2019]11号)。

摘　　要：以碱式碳酸铜和碱式碳酸锌为原料,经湿法研磨后制备纳米复合防腐剂(MCZ,微经铜锌化合物)。通过将丙烯酸酯乳液、含硅丙烯酸酯乳液与MCZ共混,获得改性MCZ以及含硅改性MCZ,并采用浸渍方法使用改性MCZ处理橡胶木,研究丙烯酸酯乳液以及含硅丙烯酸酯乳液对MCZ抗流失性能的影响。结果表明,当MCZ和丙烯酸酯乳液质量比为1∶1时,改性的MCZ抗流失性最好,相比于MCZ提高了11.18%,耐腐性能降低5.86%(白腐菌),但仍满足强耐腐等级要求。含硅丙烯酸酯乳液改性后的纳米复合防腐剂,比丙烯酸酯乳液改性复合防腐剂有更低的流失性、更高的耐腐性,当硅含量(质量分数)为4%时,防腐剂流失率为2.4%,处理材失重率为4.43%。利用含硅丙烯酸酯乳液改性后的纳米复合防腐剂,具有抗流失性强、耐腐性好及安全环保的特点,该研究对于环境友好型木材防腐剂的开发利用有积极的推动作用。Using basic copper carbonate and basic zinc carbonate as raw materials, nanocomposite preservatives(MCZ) were prepared after wet grinding. By blending acrylate emulsion, silicon-containing acrylate emulsion and MCZ, modified MCZ and silicon-containing modified MCZ were obtained, and the rubber wood was treated with modified MCZ by dipping method, and the effect of acrylate emulsion and silicon-containing acrylate emulsion on anti-loss properties of nanocomposite MCZ were studied. The results showed that when the mass ratio of MCZ and acrylate emulsion was 1∶1, the modified MCZ had the best bleed resistance, which was 11.18% higher than that of MCZ and 5.86% lower in corrosion resistance(white rot bacteria), but still met the requirements of strong corrosion resistance grade requirements. The nanocomposite preservative modified by silicon-containing acrylate emulsion had lower loss and higher corrosion resistance than acrylate emulsion modified composite preservative. When the silicon content was 4%, the loss rate of the preservative was 2.4%, and the weight loss rate of treated wood was 4.43%. The nanocomposite preservative modified by silicon-containing acrylate emulsion had the characteristics of strong loss resistance, good corrosion resistance, safety and environmental protection. This research has a positive role in promoting the development and utilization of environmentally friendly wood preservatives.

关 键 词：纳米复合防腐剂 丙烯酸酯乳液 稳定性 抗流失 耐腐 

分 类 号：S781.7[农业科学—木材科学与技术]