Pires João, Paula Camila Damásio de, Souza Victor Gomes Lauriano, Fernando Ana Luísa, Coelhoso Isabel
MEtRICs, Departamento de Ciências e Tecnologia da Biomassa, NOVA School of Science andTechnology FCT NOVA, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Prof. Lineu Prestes 580, CEP, 05508-900 São Paulo-SP, Brazil.
Polymers (Basel). 2021 Feb 26;13(5):721. doi: 10.3390/polym13050721.
The continuous petroleum-based plastics manufacturing generates disposal issues, spreading the problem of plastic pollution and its rise in the environment. Recently, innovative techniques and scientific research promoted biopolymers as the primary alternative for traditional plastics, raising and expanding global bioplastic production. Due to its unmatched biological and functional attributes, chitosan (Ch) has been substantially explored and employed as a biopolymeric matrix. Nevertheless, the hydrophilicity and the weak mechanical properties associated with this biopolymer represent a significant intrinsic restriction to its implementation into some commercial applications, namely, in food packaging industries. Distinct methodologies have been utilized to upgrade the mechanical and barrier properties of Ch, such as using organic or inorganic nanofillers, crosslinkers, or blends with other polymers. This review intends to analyze the most recent works that combine the action of different nanoparticle types with Ch films to reinforce their mechanical and barrier properties.
持续的石油基塑料制造产生了处置问题，加剧了塑料污染问题及其在环境中的增加。最近，创新技术和科学研究推动了生物聚合物成为传统塑料的主要替代品，从而提高并扩大了全球生物塑料的产量。由于壳聚糖（Ch）具有无与伦比的生物学和功能特性，因此已被大量研究并用作生物聚合物基质。然而，这种生物聚合物的亲水性和较弱的机械性能对其在某些商业应用（即食品包装行业）中的应用构成了重大的内在限制。已经采用了不同的方法来改善壳聚糖的机械性能和阻隔性能，例如使用有机或无机纳米填料、交联剂或与其他聚合物共混。本综述旨在分析将不同类型纳米颗粒的作用与壳聚糖薄膜相结合以增强其机械性能和阻隔性能的最新研究成果。
