Polylactides-Chemistry, Properties and Green Packaging Technology: A Review
Polylactides-Chemistry, Properties and Green Packaging Technology: A Review
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DOI：
10.1080/10942910903125284
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发表时间：
2011-01-01
影响因子：
2.9
通讯作者：
Varshney, Sunil K.
中科院分区：
文献类型：
--
作者：
Ahmed, Jasim;Varshney, Sunil K.
聚乳酸（PLA）是一种可生物降解的脂肪族聚酯，在食品包装、汽车内饰等领域有着广泛的应用。聚乳酸的优点之一是其原料乳酸可以从可再生资源中获得，这使得聚乳酸对于包装非常有吸引力，被认为是绿色包装。尽管与石油基包装材料相比，PLA的成本相对较高，但预计在该工艺获得商业成功后，价格将下降。本文综述了聚乳酸的化学组成、合成方法、性能及应用。讨论了聚乳酸的增塑作用、聚乳酸基包装材料的吸附等温线和力学性能。PLA/层状有机纳米复合材料在力学、热学、光学和物理化学性能方面均优于纯PLA。这篇综述包括PLA基纳米复合材料的简要概述，它们的机械性能，作为工业用途的包装材料的潜力及其对环境的影响。
Polylactide (PLA), a biodegradable aliphatic polyester, has been studied extensively for its wide applications in various fields from food packaging to interior materials for automobiles. One of PLA's advantages is that the raw material, lactic acid can be derived from renewable resources, which makes PLA very attractive for the packaging and considered as green packaging. Although, the cost of PLA is relatively higher compared to petroleum based packaging materials and it is predicted that the price will go down after commercial success of the process. This paper presents a review on polylactide with focus on its chemistry, synthesis, properties, and applications. Plasticization effect on PLA, sorption isotherm and mechanical properties of PLA based packaging materials have been discussed. PLA/layered organo nanocomposites exhibit significant improvement in mechanical, thermal, optical, and physicochemical properties over pure PLA. This review includes brief overview of PLA based nanocomposite, their mechanical properties, potential as packaging materials for industrial usage and their environmental implications.