The increasing global environmental concerns and awareness of renewable green resources is continuously expanding the demand for eco-friendly, sustainable and biodegradable natural fibre reinforced composites (NFRCs). Natural fibres already occupy an important place in the composite industry due to their excellent physicochemical and mechanical properties. Natural fibres are biodegradable, biocompatible, eco-friendly and created from renewable resources. Therefore, they are extensively used in place of expensive and non-renewable synthetic fibres, such as glass fibre, carbon fibre and aramid fibre, in many applications. Additionally, the NFRCs are used in automobile, aerospace, personal protective clothing, sports and medical industries as alternatives to the petroleum-based materials. To that end, in the last few decades numerous studies have been carried out on the natural fibre reinforced composites to address the problems associated with the reinforcement fibres, polymer matrix materials and composite fabrication techniques in particular. There are still some drawbacks to the natural fibre reinforced composites (NFRCs)—for example, poor interfacial adhesion between the fibre and the polymer matrix, and poor mechanical properties of the NFRCs due to the hydrophilic nature of the natural fibres. An up-to-date holistic review facilitates a clear understanding of the behaviour of the composites along with the constituent materials. This article intends to review the research carried out on the natural fibre reinforced composites over the last few decades. Furthermore, up-to-date encyclopaedic information about the properties of the NFRCs, major challenges and potential measures to overcome those challenges along with their prospective applications have been exclusively illustrated in this review work. Natural fibres are created from plant, animal and mineral-based sources. The plant-based cellulosic natural fibres are more economical than those of the animal-based fibres. Besides, these pose no health issues, unlike mineral-based fibres. Hence, in this review, the NFRCs fabricated with the plant-based cellulosic fibres are the main focus.

中文翻译：

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植物基天然纤维增强复合材料：制备，性能和应用的审查。

全球对环境问题的日益关注和对可再生绿色资源的意识，正在不断扩大对生态友好，可持续和可生物降解的天然纤维增强复合材料（NFRC）的需求。天然纤维由于其优异的物理化学和机械性能，已经在复合材料工业中占据重要地位。天然纤维是可生物降解的，生物相容的，生态友好的，并由可再生资源制成。因此，它们在许多应用中广泛地代替了昂贵且不可再生的合成纤维，例如玻璃纤维，碳纤维和芳族聚酰胺纤维。此外，NFRC还可以替代石油基材料用于汽车，航空航天，个人防护服，体育和医疗行业。为此，在过去的几十年中，已经对天然纤维增强的复合材料进行了大量研究，以解决与增强纤维，聚合物基体材料以及复合材料制造技术相关的问题。天然纤维增强复合材料（NFRC）仍然存在一些缺陷，例如，由于天然纤维的亲水性，纤维与聚合物基体之间的界面粘合性较差，以及NFRC的机械性能较差。最新的整体评估有助于清晰地了解复合材料以及组成材料的性能。本文旨在回顾过去几十年来对天然纤维增强复合材料进行的研究。此外，有关NFRC属性的最新百科全书信息，这项审查工作专门说明了主要挑战和克服这些挑战的潜在措施及其潜在应用。天然纤维是从植物，动物和矿物质中产生的。基于植物的纤维素天然纤维比基于动物的纤维更经济。此外，与矿物纤维不同，它们不会对健康造成影响。因此，在这篇综述中，用植物纤维素纤维制造的NFRC是主要焦点。与矿物纤维不同，它们不会对健康造成影响。因此，在这篇综述中，用植物纤维素纤维制造的NFRC是主要焦点。与矿物纤维不同，它们不会对健康造成影响。因此，在这篇综述中，用植物纤维素纤维制造的NFRC是主要焦点。