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Abstract
The latest advances in green alternatives are being addressed with bio-based solutions, with uses and applications in new areas due to their wide potential, low cost, lightness, renewability, biodegradability, impact toughness, fatigue resistance, and other specific properties. Natural fibers are sustainable materials that have led researchers to test their viability as alternative reinforcements in residual polymers to meet required engineering specifications; therefore, it is essential to continue making progress in replacing conventional materials. This review is expected to provide an overview of the current scopes and future prospects of biocomposites from polymers reinforced with natural fibers with a focus on the following: i. recycling of residual polymers; ii. available natural fibers and their components in the context of engineering applications; iii. the behavior of the structural modifications of the natural fibers with the physical and chemical treatments in the matrix interaction as reinforcements of the residual polymers; and iv. applications for the development of innovative, efficient, and sustainable solutions for successful, environmentally responsible products.
Highlights
In accordance with the above, natural fibers are widely used for their easy accessibility, renewability, nontoxicity, low-density (1.25–1.5 g/cm3 ), cost reduction, biodegradability, and satisfactory mechanical properties, making them an ecological alternative to replace glass and carbon fibers with densities of 2.54 y 2.1 g/cm3 [6,8,10,11], respectively, which means that they can be highly competitive, because they allow for the design of lightweight materials
The physical, chemical, and biological treatment of natural fibers is one of the best ways to optimize the interaction between the fibers and the residual polymers within the biocomposite, reducing the hydroxyl functional groups OH− present on the fiber surface and increasing the surface roughness, improving the interfacial interaction between the two and [12,17,18] determining the durability, rigidity, and resistance
This is a systematic review that aims to analyze the emerging area of residual polymeric materials with viable natural fibers; we determine the chemical composition of natural fibers, as well as the physical, mechanical, and thermal properties of the polymeric compounds formed with the fibers, to describe recycling in such a way that it contributes to the analysis of recovery and innovation strategies for the reuse of this material in the industrial sector
Summary
The physical, chemical, and biological treatment of natural fibers is one of the best ways to optimize the interaction between the fibers and the residual polymers within the biocomposite, reducing the hydroxyl functional groups OH− present on the fiber surface and increasing the surface roughness, improving the interfacial interaction between the two and [12,17,18] determining the durability, rigidity, and resistance Faced with these expectations, this is a systematic review that aims to analyze the emerging area of residual polymeric materials with viable natural fibers; we determine the chemical composition of natural fibers, as well as the physical, mechanical, and thermal properties of the polymeric compounds formed with the fibers, to describe recycling in such a way that it contributes to the analysis of recovery and innovation strategies for the reuse of this material in the industrial sector
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