Poly(lactic acid) (PLA)/poly(butylene succinate adipate) (PBSA) films with Micro fibrillated cellulose (MFC) and cardanol for packaging applications

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2024-08-31 DOI:10.1007/s10570-024-06127-w

Annalisa Apicella, Giovanna Molinari, Vito Gigante, Arianna Pietrosanto, Loredana Incarnato, Laura Aliotta, Andrea Lazzeri

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Abstract

Micro Fibrillated Cellulose (MFC) has emerged as a promising component in film formulations due to its unique barrier prope.rties. In this study, to best of our knowledge, cardanol, a biobased plasticizer derived from cashew processing, was employed for the first time, as a dispersing aid for MFC, during a liquid assisted extrusion technique with a Poly(lactic acid) (PLA)/Poly(butylene succinate adipate) (PBSA) blend. The aim of the work is the production of PLA/PBSA/MFC films for packaging applications. The addition of different MFC amount was investigated (added at 0.5, 0.75 and 1 wt.% concentrations). The results obtained are very interesting, in fact from one hand Cardanol improved the compatibility between PLA and PBSA and avoided the MFC agglomeration. On the other hand, micro fibrillated cellulose ensured a stable film blowing and the achievement of enhanced barrier properties, seal ability and mechanical resistance. In particular, the best result was obtained with an MFC content of 0.75 wt.% for which a good compromise in terms of films ductility, barrier properties and seal ability was achieved.

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聚乳酸（PLA）/聚丁二酸丁二醇酯（PBSA）薄膜与微纤维化纤维素（MFC）和卡丹醇在包装中的应用

微纤维素（MFC）因其独特的阻隔性能，已成为薄膜配方中一种前景广阔的成分。在这项研究中，据我们所知，腰果加工过程中提取的生物基增塑剂卡丹醇首次被用作 MFC 的分散助剂，在与聚乳酸（PLA）/聚丁二酸丁二醇酯（PBSA）混合物的液体辅助挤出技术中使用。这项工作的目的是生产用于包装的 PLA/PBSA/MFC 薄膜。研究了不同 MFC 的添加量（添加浓度分别为 0.5、0.75 和 1 wt.%）。研究结果非常有趣，一方面，卡丹醇改善了聚乳酸和 PBSA 之间的相容性，避免了 MFC 凝聚。另一方面，微纤维化纤维素确保了吹膜的稳定性，并提高了阻隔性、密封性和机械阻力。其中，MFC 含量为 0.75 wt.%时效果最佳，在薄膜延展性、阻隔性和密封性方面实现了良好的折衷。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.