关于EVOH,Ormocer®涂层和印刷标签对包装应用中的聚烯可回收性的影响
Romana Schmiedt1, Michael Krainz2, Katharina Tosic1
1Institute of Packaging and Resource Management, Department Applied Life Sciences, University of Applied Sciences, Favoritenstraße 222, 1100 Vienna, Austria.
Polymers
|December 31, 2025
概括
这项研究评估了乙烯乙醇 (EVOH) 和屏障涂料如何影响聚烯 (PP) 的可回收性. 结果显示,高达10%的EVOH和12.5%的标签可以保持PP回收品质,有助于可持续的包装设计.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物回收利用 聚合物回收利用
- 可持续的包装 包装是可持续的
背景情况:
- 多层柔性包装阻碍了回收利用.
- 聚烯 (PP) 提供可回收性,但需要提高屏障.
- 乙烯乙醇 (EVOH),Ormocer®和PP标签是潜在的解决方案.
研究的目的:
- 调查EVOH,Ormocer®和PP标签对PP可回收性的影响.
- 评估机械性能,融化流速 (MFR),氧化稳定性和气味的变化.
- 为设计可回收单一材料包装提供指导.
主要方法:
- 使用双螺杆挤出机模拟回收.
- 注塑成型以创建拉力测试标本.
- 分析机械性能,MFR,氧诱导时间 (OIT) 和气味.
主要成果:
- 低标签含量 (5-12.5%) 对回收材料质量影响最小.
- 10%的EVOH增加了弹性模量和氧化稳定性,但影响强度降低.
- 奥尔莫塞尔降低了机械性能,改变了气味.
- 观察到标签和Ormocer®的气味变化.
结论:
- 高达10%的EVOH和高达12.5%的标签显示出保持PP回收品质的希望.
- 仔细选择屏障材料和粘合剂对于可回收包装至关重要.
- 这些发现支持开发可回收的单一材料PP包装解决方案.
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