张素风,雷丹,孙洁轩,杨苗秀,景小凯.有机小分子酸-酮-水复合分离体系对铝塑复合膜的分离性能研究[J].中国造纸学报,2026,41(1):141-149 本文二维码信息
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有机小分子酸-酮-水复合分离体系对铝塑复合膜的分离性能研究
Study on the Separation Performance of Acid-ketone-water Composite Separation System Towards Aluminum Foil Layer/Polyethylene Plastic Composite Films
投稿时间:2025-08-02  修订日期:2025-09-15
DOI:10.11981/j.issn.1000-6842.2026.01.141
中文关键词:  铝塑复合膜分离  有机小分子酸  酮类有机试剂
Key Words:AL/PE composite film separation  organic small-molecule acid  ketone organic reagents
基金项目:生物质化学与材料国际联合研究中心(2018GHJD-19)。
作者单位邮编
张素风* 1陕西科技大学轻工科学与工程学院,陕西西安,710021 710021
雷丹 1陕西科技大学轻工科学与工程学院,陕西西安,710021
2陕西科技大学电气与控制工程学院, 陕西西安,710021 
710021
孙洁轩 1陕西科技大学轻工科学与工程学院,陕西西安,710021 710021
杨苗秀 3中国制浆造纸研究院有限公司,北京,100102 100102
景小凯 1陕西科技大学轻工科学与工程学院,陕西西安,710021 710021
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中文摘要:
      本研究通过在传统酸型分离剂中,引入对铝塑复合膜中聚乙烯塑料具有轻微溶胀作用且能溶解低密度黏合层聚乙烯的酮类有机试剂,结合有机小分子酸对铝箔的剥离作用,形成有机小分子酸-酮-水复合分离体系,以加速铝塑复合膜的分离。本研究探究了甲酸、乙酸与丙酮、环己酮等复配形成的4种有机小分子酸-酮-水复合分离体系对铝塑复合膜的分离性能。结果表明,当甲酸、丙酮、水的体积比为6∶1∶93时,复合分离体系对铝塑复合膜的分离效果最佳,仅需17 min便可实现铝箔与聚乙烯塑料的完整分离,铝塑损失率低至2.08%;不仅显著提高了纸铝塑复合包装材料的分离效率,且有效减少了分离体系中有机试剂的含量。
Abstract:
      This study accelerated the separation of Aluminum foil layer (AL)/polyethylene plastic (PE) composite films by introducing ketones with mild swelling effects on PE and solubility of low-density adhesive layer PE of AL/PE composite films into traditional acid separators. This approach leveraged the peeling action of organic small-molecule acids on AL to form an organic small-molecule acid-ketone-water composite separation system. This study investigated the separation performance of four acid-ketone-water composite separation systems formed by blending formic acid, acetic acid, acetone, and cyclohexanone for AL/PE composite films. The results indicated that the strongest separation effect of composite separation system towards AL/PE composite film occured at a volume ratio of formic acid∶acetone∶water of 6∶1∶93. Complete separation of AL/PE composite film was achieved in just 17 min, with a total AL/PE loss rate as low as 2.08%. This approach not only significantly enhanced the separation efficiency of paper/AL/PE composite packaging materials, but also effectively reduced organic reagents content of the separation system.
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