Abstract Multilayer packaging is used in food consumables as disposable packs. The Attenuated Total Reflection - Fourier Transform Infrared spectroscopy (ATR-FTIR) spectroscopy is used in detecting defects in manufactured food packs. The consumed food packs like chips, biscuits and chocolates are littered without recycling. This is the first study that focused on the degradation potential of littered multilayer food packaging plastics from a dumpsite. The multilayer polymeric composition of various commercial packs was identified by ATR-FTIR spectroscopy based on the functional groups. The multilayer polymeric composition of a certain brand chips packs (commercial and littered) was similar. It has four polymers with the following sequence, Polypropylene (PP), Low-Density Polyethylene (LDPE), metalized-Polyethylene terephthalate (m-PET) and Linear Low-Density Polyethylene (LLDPE). Polypropylene was the printed layer, LLDPE was the inner food contact layer, whereas LDPE and m-PET were the binding layers of the other polymers in the pack. The degradation potential of littered packs from a dumpsite was characterized by ATR-FTIR spectroscopy. The littered multilayer chips packs (2016b and 2015c) were oxidized among the other packs. It was observed based on the OH group formation in the polyolefins, which states the surface degradation. The ATR-FTIR spectroscopy aided in the characterization of polymer degradation from a littered sample.

中文翻译：

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应用衰减全反射 - 傅里叶变换红外光谱表征乱丢多层食品包装塑料的降解

摘要 多层包装作为一次性包装用于食品消耗品。衰减全反射 - 傅里叶变换红外光谱 (ATR-FTIR) 光谱用于检测制造食品包装中的缺陷。食用过的薯片、饼干和巧克力等食品包装被丢弃而没有回收利用。这是第一项针对垃圾场中散落的多层食品包装塑料的降解潜力的研究。各种商业包装的多层聚合物组合物通过基于官能团的 ATR-FTIR 光谱进行鉴定。某些品牌薯片包（商用和散装）的多层聚合物组成是相似的。它有四种聚合物，其顺序如下：聚丙烯 (PP)、低密度聚乙烯 (LDPE)、金属化聚对苯二甲酸乙二醇酯 (m-PET) 和线性低密度聚乙烯 (LLDPE)。聚丙烯是印刷层，LLDPE 是食品接触层，而 LDPE 和 m-PET 是包装中其他聚合物的粘合层。ATR-FTIR 光谱表征了垃圾场中乱扔垃圾的降解潜力。散落的多层芯片组（2016b 和 2015c）在其他组中被氧化。这是基于聚烯烃中的 OH 基团形成而观察到的，这表明表面降解。ATR-FTIR 光谱有助于表征散落样品中的聚合物降解。ATR-FTIR 光谱表征了垃圾场中乱扔垃圾的降解潜力。散落的多层芯片组（2016b 和 2015c）在其他组中被氧化。这是基于聚烯烃中的 OH 基团形成而观察到的，这表明表面降解。ATR-FTIR 光谱有助于表征散落样品中的聚合物降解。ATR-FTIR 光谱表征了垃圾场中乱扔垃圾的降解潜力。散落的多层芯片组（2016b 和 2015c）在其他组中被氧化。这是基于聚烯烃中的 OH 基团形成而观察到的，这表明表面降解。ATR-FTIR 光谱有助于表征散落样品中的聚合物降解。