The effects of pretreatment and coating on the formability of extrusion‐coated multilayer paperboard–plastic composites,Packaging Technology and Science

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The effects of pretreatment and coating on the formability of extrusion‐coated multilayer paperboard–plastic composites
Packaging Technology and Science ( IF 2.8 ) Pub Date : 2020-10-30 , DOI: 10.1002/pts.2542
Wilken Franke ₁ , Ville Leminen ₂ , Peter Groche ₁ , Juha Varis ₂

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Sustainable materials like paperboard can substitute for crude oil‐based polymers in packaging applications and, by doing that, reduce the negative environmental impacts caused by plastic waste. For a broader application in the packaging industry, the forming of paperboard needs to overcome its limited forming behaviour and barrier properties. The presented work aims to influence the forming behaviour of uncoated and polyethylene terephthalate (PET)‐coated paperboard with additives like water, gelatin and soap. Furthermore, the differences in the mechanical behaviour of coated and uncoated materials are investigated. For the studies, tensile, bulge and forming tests were combined with different optical measurement methods. The investigations showed that the overall forming behaviour is affected by the mentioned additives and can be improved. Additionally, the interaction of the coating and substrate paper is investigated under different load conditions.

中文翻译：

预处理和涂层对挤出涂布多层纸板-塑料复合材料可成型性的影响

诸如纸板之类的可持续材料可以在包装应用中替代基于原油的聚合物，从而减少塑料废物对环境的负面影响。为了在包装工业中更广泛的应用，纸板的成型需要克服其有限的成型性能和阻隔性能。提出的工作旨在通过添加水，明胶和肥皂等添加剂来影响未涂布和聚对苯二甲酸乙二醇酯（PET）涂布纸板的成型性能。此外，研究了涂覆和未涂覆材料的机械性能差异。为了进行研究，将拉伸，凸起和成形测试与不同的光学测量方法结合在一起。研究表明，整体成型性能受上述添加剂的影响，可以改善。

更新日期：2021-01-07

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