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Biodegradable composite materials in technological applications

机译：技术应用中可生物降解的复合材料

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At present, there is a change in attitude towards environmental care. This variation is evident both in environmental and sustainability policies developed by governments of some countries and in the minds of consumers. All this promotes research into new environmentally friendly materials. As a result, biodegradable polymeric materials have gained in recent years great importance. In fact, there are commercially biodegradable thermoplastic derived from polyalqueonate, such as polylactic acid (PLA), policrapolactona, polyhydroxybutyrate (PHB), polidroxibutirate-valerate (PHBV), .. On the other hand, is well known that polymeric matrix composites have been well accepted by their good performance in different technological fields. This effect has led to the emergence of a new generation of composite materials called "green composites" or "eco composites" which are characterized by their low environmental aggression and biodegradability properties. In the present work, a "green composite" has been characterized for technological applications in several industries such as automotive, transportation, interiorism, ... Specifically, natural fibers such as fiber source of agave (Agave Americana, monocotyledonous plant belonging to the family of amarillidaceas) has been used in thermoplastic polymer matrices of biodegradable nature, polyhydroxybutyrate PHB. The main aim of this study is to compare the mechanical properties of natural fiber reinforced biopolymers in order to obtain "green composites" which can replace traditional composites. In order to reach this objective, mechanical, physical, thermal and morphological properties of such biocomposites have been analyzed. The obtained results show that the mechanical response of the "green composite" obtained is significantly improved with the increase of natural fiber. Furthermore, the thermal stability also is increased considerably with the addition of fibers. However, the surface morphology shows a lack of interaction between the matrix and the fiber. It is expected an improvement of the compound performance with the treatment of the pita fibers.
机译：目前，对环境保护的态度发生了变化。这一变异都是在一些国家政府和消费者思想中制定的环境和可持续发展政策中。所有这些都促进了新的环保材料的研究。结果，近年来可生物降解的聚合物材料具有重要意义。事实上，有来自聚甘露酸酯的商业可生物可生物降解的热塑性塑料，例如聚乳酸（PLA），POLICRAPOLACTONA，多羟基丁酸酯（PHB），众所周知，众所周知，聚合物基质复合材料已众所周知很好地接受了他们在不同技术领域的良好表现。这种效果导致了新一代称为“绿色复合材料”的复合材料或“eco复合材料”的出现，其特征在于它们低的环境侵蚀和生物降解性性能。在目前的工作中，“绿色复合材料”的特点是汽车，运输，内心等若干行业的技术应用，...具体地，诸如龙舌兰纤维源（龙舌兰Americana，属于家庭的单子叶植物）的天然纤维Amarillidaceas）已被用于可生物降解性质的热塑性聚合物基质，聚羟基丁酸酯PHB。本研究的主要目的是比较天然纤维增强生物聚合物的机械性能，以获得可以取代传统复合材料的“绿色复合材料”。为了达到该目的，已经分析了这种生物复合材料的机械，物理，热和形态学性质。得到的结果表明，随着天然纤维的增加，所获得的“绿色复合材料”的机械响应显着改善。此外，随着添加纤维，热稳定性也显着增加。然而，表面形态显示了基质和纤维之间的相互作用。预计通过治疗皮塔纤维的化合物性能提高了化合物性能。

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