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首页> 外文期刊>Journal of Polymers and the Environment >Lignocellulosic Materials as Reinforcement of Polyhydroxybutyrate and its Copolymer with Hydroxyvalerate: A Review
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Lignocellulosic Materials as Reinforcement of Polyhydroxybutyrate and its Copolymer with Hydroxyvalerate: A Review

机译：木质纤维素材料作为聚羟基丁酸盐的增强及其与羟基戊戊烷的共聚物：综述

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摘要

The biodegradable nature of polyhydroxyalkanoates (PHAs) is an outstanding feature for the replacement of petroleum-based polymers. The most studied PHAs are polyhydroxybutyrate and its copolymer with hydroxyvalerate. However, PHAs have a considerably higher cost than conventional polymers, which is one of the main obstacles to their growth in the polymers market. Also, its high brittleness, low impact strength, and high processing temperature must be improved. In this sense, incorporating natural fibers to PHAs does not compromise their eco-friendly nature; conversely, they could even enhance the biodegradation rate while bringing significant cost reduction and a reinforcement effect. Moreover, natural fibers are usually wasted from industrial processes without any added-value. This review summarizes the published literature and the state-of-the-art of PHAs-based biocomposites. An extensive discussion is presented about lignocellulosic fibers' effect on the thermal, mechanical, and biodegradation properties, and fiber-matrix adhesion, as well as the use of compatibilizers, plasticizers, and processing methods.
机译：多羟基烷烷（PHA）的可生物降解性质是替代石油基聚合物的突出特征。最多研究的PHA是聚羟丁酸酯及其与羟基戊戊烷的共聚物。然而，PHA具有比常规聚合物更高的成本，这是它们在聚合物市场增长的主要障碍之一。而且，必须改善其高脆性，低冲击强度和高加入温度。从这个意义上讲，将天然纤维纳入PHA并不损害它们的环保性质;相反，它们甚至可以提高生物降解率，同时产生重大成本和加强效果。此外，天然纤维通常从工业过程中浪费而没有任何增加值。本综述总结了出版的文献和基于PHA的生物复合材料的最新功能。对木质纤维素纤维的影响进行了广泛的讨论，以及对热，机械和生物降解性能和纤维 - 基质粘附以及使用增塑剂和加工方法的使用。

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