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投稿时间：2015-09-24 修订日期：2015-10-08 录用日期：2015-10-09 网络发布日期：2016-02-23
投稿时间：2015-09-24 修订日期：2015-10-08 录用日期：2015-10-09 网络发布日期：2016-02-23
中文摘要: 以苯甲醛为主溶剂，甲酸为助溶剂，液体石蜡为抑制挥发剂的有机溶液去除报废镁合金表面涂层，并对去除机理进行研究。结果表明，当苯甲醛和甲酸的体积比为13︰7，处理时间为10 min时，涂层的起皱率可达100%；在涂层去除过程中，有机溶剂分子与涂层聚合物之间没有发生化学反应，溶剂对涂层聚合物无降解破坏作用，而是使聚合物空间网状结构扩大，减弱了有机涂层与基材间的作用力，促使涂层与镁合金基材分离。
Abstract:Surface coating on scrap magnesium alloy was removed applying novel organic solvents with benzaldehyde as major solvent, formic acid as cosolvent, and liquid paraffin as devolatilizer. The removal mechanism was investigated. The results demonstrate that coating on surface of magnesium alloy is completely removed after immersed for 10 min with volume ratio between benzaldehyde and formic of 13/7. It is supposed that there is no chemical interaction between novel organic solvents and coating materials in removing process. Organic solvent contacting with coating polymer chain segment produces soluble inflation in polymer spatial reticulated structure without damage of degradation, and weakens force between organic coating and substrate, thereby removes coating from magnesium substrate.
keywords: magnesium alloy scrap surface coating removing
文章编号： 中图分类号：TG146.2 文献标志码：
基金项目:山西省国际科技合作项目（2014081001-2）
引用文本：
毛嘉,李明照,张耀斌,吴翔,杨卓晓.报废镁合金表面涂层的清洗技术研究[J].有色金属（冶炼部分）,2016(3):62-67.
MAO jia,LI mingzhao,ZHANG yaobin,WU xiang,YANG zhuoxiao.Study on Cleaning Technology for Surface Coating on Scrap Magnesium Alloy[J].Nonferrous Metals (Extractive Metallurgy),2016(3):62-67.
毛嘉,李明照,张耀斌,吴翔,杨卓晓.报废镁合金表面涂层的清洗技术研究[J].有色金属（冶炼部分）,2016(3):62-67.
MAO jia,LI mingzhao,ZHANG yaobin,WU xiang,YANG zhuoxiao.Study on Cleaning Technology for Surface Coating on Scrap Magnesium Alloy[J].Nonferrous Metals (Extractive Metallurgy),2016(3):62-67.
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