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ABSTRACT
Nowadays global packaging is a very important branch of industry and it is still growing. In the case of food packaging, materials such as polypropylene, polyethylene (PE) and other synthetic polymers have become very popular. However, the biggest disadvantage of traditional polymers is their poor biodegradability. Alternatives to them are biodegradable polymers, such as starch, cellulose, polyhyroxyalkanoate, chitosan, polylactic acid (PLA), however they still have some disadvantages, for example in the case of PLA, the prize is very high. Very promising materials are natural fibers, which can be used as a filler in a matrix of biodegradable polymers reducing their cost or non-biodegradable, increasing their eco-friendliness. Nonwoven based on natural lignocellulosic fibers are also promising. Therefore, the purpose of this review is to determine the current state of knowledge about natural fibers used in composites, with particular reference to new composite materials based on fibers that can be used in food packaging.
摘要
目前，全球包装是一个非常重要的产业分支，而且还在不断发展。在食品包装的情况下，聚丙烯、聚乙烯等合成高分子材料已经非常普及。然而，传统聚合物最大的缺点是生物降解性差。替代他们的是可生物降解的聚合物，如淀粉、纤维素、聚羟基链烷酸酯、壳聚糖、聚乳酸（PLA），但是他们仍然有一些缺点，例如在聚乳酸的情况下，这个奖是非常高的。非常有前途的材料是天然纤维，可作为可生物降解聚合物基质中的填料，降低其成本或不可生物降解，提高其生态友好性。无纺布基于天然木质纤维素纤维也有前途的。因此，本次审查的目的是确定使用天然纤维复合材料知识的当前状态，以纤维，可用于食品包装复合新材料特别参考。