The aim of the work is to demonstrate the possibility of using recycled biodegradable material as a cellular material with a reduced weight. An experimental study on the influence of recycling on the properties and foam ability of polylactide (PLA) was carried out. The influence of recycling on the polymer crystallinity, thermal and viscoelastic properties was investigated. During the batch process the cellular structure in PLA and recycled PLA were created. A higher degree of crystallinity, a lower viscosity value and a lower melt strength for recycled PLA, as compared to original material, were observed. For the recycled PLA, a fine cellular structure and low density (0.60 g/cm3) were obtained.

中文翻译：

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分批回收对聚丙交酯细胞结构的影响

这项工作的目的是证明使用回收的可生物降解材料作为重量减轻的细胞材料的可能性。进行了回收利用对聚乳酸（PLA）性能和发泡能力影响的实验研究。研究了回收对聚合物结晶度、热和粘弹性能的影响。在批处理过程中，产生了 PLA 和回收 PLA 中的多孔结构。观察到与原始材料相比，回收的 PLA 具有更高的结晶度、更低的粘度值和更低的熔体强度。对于回收的 PLA，获得了精细的蜂窝状结构和低密度 (0.60 g/cm3)。