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给废塑料“做体检”:我国科学家破解混合废塑料回收难题
Xin Hua Wang· 2025-06-26 03:28
Core Viewpoint - The research conducted by Chinese scientists using nuclear magnetic resonance technology provides a new pathway for plastic waste management and resource recycling by identifying key chemical structures in mixed waste plastics and designing customized catalytic conversion plans to transform waste into high-value chemical products [1][3]. Group 1: Research and Methodology - The study focuses on the challenge of plastic waste, which is prevalent in various sectors such as packaging, home goods, automotive, and electronics, and is often difficult to recycle due to its mixed nature [1]. - The research team, led by Professor Martin from Peking University in collaboration with the Dalian Institute of Chemical Physics, utilized nuclear magnetic resonance technology to identify key chemical structures in mixed waste plastics [1]. - The new method allows for the mixed processing of complex waste plastics, such as food containers and packaging bags, without the need for labor-intensive sorting, thus improving efficiency and reducing costs [2]. Group 2: Economic and Environmental Impact - The innovative approach significantly enhances the economic viability and environmental benefits of plastic resource recovery by producing high-value chemical raw materials such as benzoic acid, lactic acid, bisphenol A, and alanine [1]. - The research aims to alleviate environmental pollution while also reducing dependence on fossil fuels, contributing to national carbon reduction efforts [3].