The increasing demand for plastic products continues to result in a growing tonnage of plastic packaging waste with significant environmental consequences. Circular economy models are established to overcome the resource and environmental challenges caused by this increase. In the literature, the evaluation of how the plastic packaging value chain can be enhanced by circular economy practices remains underexplored. This paper aims to explore the impact of three circular economy models on the European plastic packaging value chain, covering circular economy strategies:, (i) promoting cross-sectoral valorization of plastic wastes through IS, (ii) improvement in recycling efficiency of wastes within the plastics sector, and (iii) introduction of a new bio-based biodegradable plastic product. Three linear single-objective optimization models were developed for maximization of environmental benefits and circularity, to assess how European plastics wastes supply chains could be made more circular by 2025. The results show that if better upcycling options including industrial symbiosis can be identified and established in the future, in addition to the composting as a viable End of Life option, plastic packaging value chain can create higher environmental benefits. Also, all circular economy strategies contribute to the improvement of circularity.

对塑料产品不断增长的需求继续导致塑料包装废物吨位不断增加，从而对环境造成重大影响。建立循环经济模型来克服这种增长带来的资源和环境挑战。在文献中，对循环经济实践如何增强塑料包装价值链的评估仍未得到充分探索。本文旨在探讨三种循环经济模式对欧洲塑料包装价值链的影响，涵盖循环经济战略：(i) 通过 IS 促进塑料废物的跨部门价值化，(ii) 提高内部废物的回收效率。塑料行业，以及 (iii) 推出一种新的生物基可生物降解塑料产品。为了最大限度地提高环境效益和循环性，开发了三个线性单目标优化模型，以评估到 2025 年欧洲塑料废物供应链如何变得更加循环。结果表明，如果可以确定和建立更好的升级再循环选择，包括工业共生未来，除了将堆肥作为一种可行的报废选择外，塑料包装价值链还可以创造更高的环境效益。此外，所有循环经济战略都有助于改善循环性。除了将堆肥作为一种可行的报废选择外，塑料包装价值链还可以创造更高的环境效益。此外，所有循环经济战略都有助于改善循环性。除了将堆肥作为一种可行的报废选择外，塑料包装价值链还可以创造更高的环境效益。此外，所有循环经济战略都有助于改善循环性。