改良溶胶凝胶法处理铜基防腐木改性研究  

Modification of Copper-based Preserved Wood by Sol-gel Method

作　　者：王小燕 云虹 韩一琳 WANG Xiaoyan;YUN Hong;HAN Yilin(College of Materials and Energy,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]华南农业大学材料与能源学院,广州510642

出　　处：《包装工程》2024年第3期10-17,共8页Packaging Engineering

基　　金：广东省林学会科技计划项目(2020-GDFS-KJ-04)。

摘　　要：目的 以溶胶凝胶法为基础进行改良,通过温和改性铜基防腐木,从而提高防腐木中铜基防腐剂有效成分的性能。方法 以杨木为研究对象,选取正硅酸乙酯作为溶胶凝胶反应的前驱体,探究直接浸渍和原位固定2种溶胶凝胶方法分别对ACQ防腐剂和CA防腐剂浸渍后的试件性能的影响。结果 2种溶胶凝胶方法均可在杨木的导管中形成二氧化硅网状结构,进而使防腐剂中铜离子的固着率提高2%~9%。结论 通过接触角、热重和防霉等性能测试的结果可知,2种溶胶凝胶法均能提高木材的疏水性、热稳定性和防霉性能,具有较好的改性效果。The work aims to modify copper-based preserved wood mildly through the sol-gel method to improve the properties of active ingredients in copper-based preserved wood.With poplar wood as the research object,and ethyl orthosilicate as the precursor,the effects of two sol-gel methods,direct impregnation and in situ fixation,on the properties of specimens impregnated with ACQ preservative and CA preservative were investigated respectively.The results showed that both sol-gel methods could form a silica mesh structure in the conduit of poplar wood,which in turn increased the fixation rate of copper ions in the preservative by 2%-9%.As shown by the results of the performance tests on the contact angle,thermal weight and mildew protection,both sol-gel methods can improve the hydrophobicity,thermal stability and mildew protection of the wood,and have a better modification effect.

关 键 词：溶胶凝胶法 铜基防腐剂 抗流失性 正硅酸乙酯 

分 类 号：S782.33[农业科学—木材科学与技术]