| 引用本文: | 王小燕,云虹,韩一琳.改良溶胶凝胶法处理铜基防腐木改性研究[J].包装工程,2024,45(3):10-17. |
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| 改良溶胶凝胶法处理铜基防腐木改性研究 |
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王小燕,云虹,韩一琳
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华南农业大学 材料与能源学院，广州 510642
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| 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。 |
| 关键词: 溶胶凝胶法 铜基防腐剂 抗流失性 正硅酸乙酯 |
| DOI：10.19554/j.cnki.1001-3563.2024.03.002 |
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| 基金项目:广东省林学会科技计划项目(2020-GDFS-KJ-04) |
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| Modification of Copper-based Preserved Wood by Sol-gel Method |
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WANG Xiaoyan, YUN Hong, HAN Yilin
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(College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China)
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| Abstract: |
| 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. |
| Key words: sol-gel method copper-based preservative loss resistance ethyl orthosilicate |
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