Institute of Chemistry, University of the Punjab, Lahore, Pakistan.
Department of Chemistry, University of Gujrat, Gujrat, Pakistan.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2020 Apr;37(4):665-680. doi: 10.1080/19440049.2020.1718219. Epub 2020 Feb 12.
Potential hazardous effects caused by non-biodegradable plastics are considered to be one of the most widely discussed and notable challenges of the 21st century. To address this particular problem, immense efforts have been devoted to the preparation of biodegradable plastics material. This green approach mitigates the major drawbacks e.g. improper waste management, low degradation rates, waste accumulation in water reservoirs and harmful chemical reagents hence providing a natural, economical and biodegradable alternative to the customarily employed non-biodegradable plastics. This review provides an insight into recently engineered biodegradable plastics used for packaging applications. Properties such as barrier/permeation indexes, thermal, electrical and mechanical characteristics of the biodegradable plastics are considered in detail for developing an understanding regarding the fundamentals of biodegradable materials. Recent literature (2010-2018) was classified according to the composition and nature of the used material. Materials such as polylactic acid, polyhydroxyalkanoates, polyhydroxybutyrate, polycaprolactone, starch and cellulose were comprehensively discussed along with their properties and blending agents.
不可生物降解塑料造成的潜在危害被认为是 21 世纪最广泛讨论和最值得关注的挑战之一。为了解决这个特殊问题，人们付出了巨大的努力来制备可生物降解塑料材料。这种绿色方法减轻了主要缺点，例如废物管理不当、降解率低、废物在水库中积累和有害化学试剂，从而为通常使用的不可生物降解塑料提供了一种自然、经济和可生物降解的替代品。 本综述介绍了最近用于包装应用的工程可生物降解塑料。详细考虑了可生物降解塑料的阻隔/渗透指数、热、电和机械特性等性能，以了解可生物降解材料的基础。根据使用材料的组成和性质，对最近的文献（2010-2018 年）进行了分类。全面讨论了聚乳酸、聚羟基烷酸酯、聚羟基丁酸酯、聚己内酯、淀粉和纤维素等材料及其特性和共混剂。
