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来自O'ahu,夏威夷的漂浮废弃渔具的聚合物识别

Raquel N Corniuk¹, Katherine R Shaw², Andrew McWhirter¹

¹Hawai'i Pacific University Center for Marine Debris Research, United States of America.

Marine pollution bulletin

|September 30, 2023

概括

废弃的渔具 (DFG) 是一个主要的塑料污染物. 这项研究分析了8种DFG类型,确定了26种聚合物,主要是聚乙烯,以帮助识别来源和回收.

科学领域:

海洋污染海洋污染
材料科学是一种材料科学.
环境法医学环境法医学

背景情况:

废弃渔具 (DFG) 构成了海洋环境中塑料污染的重要组成部分,特别是在北太平洋.
德国地铁的环境和经济后果需要更深入地了解其材料组成,以告知缓解策略.
目前关于各种渔具类型的特定材料构成存在知识差距,阻碍了有针对性的解决方案.

研究的目的:

以法医评估 DFG.作为回收的各种渔具类型的结构和化学成分.
建立DFG的详细材料库存,以支持未来的识别和管理工作.
为开发回收途径和确定DFG的来源提供基础数据.

主要方法:

解剖和详细记录八种不同的渔具类型的物理结构.
使用先进的光谱和热分析技术 (ATR-FTIR,DSC) 来识别聚合物.
使用X射线光 (XRF) 来表征材料组成的元素添加剂分析.

主要成果:

在分析的DFG样本中识别了26种不同的聚合物.
在大多数渔具类型中,聚乙烯变体和混合物的占主导地位.
关于常见的DFG的物理和化学性质的全面描述.

结论:

DFG的详细材料表征为视觉识别轮类型提供了关键的参考.
这些数据可以促进DFG的来源追踪和制定有针对性的回收计划.
了解材料成分是减少DFG对海洋生态系统影响的关键.

关键词:

标志性描述标志性描述废弃的渔具废弃的渔具海洋垃圾:海洋垃圾就是海洋垃圾.塑料污染问题塑料污染问题聚合物识别聚合物识别

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