Comparative mechanical properties between biocomposites of Epoxy and polyester matrices reinforced by hemp fiber

Neves, Anna Carolina Cerqueira; Rohen, Lázaro A.; Mantovani, Dhyemila P.; Carvalho, Juliana Peixoto Rufino Gazem de; Vieira, Carlos Maurício Fontes; Lopes, Felipe Perissé Duarte; Simonassi, Noan Tonini; Luz, Fernanda Santos da; Monteiro, Sérgio Neves

doi:10.1016/j.jmrt.2019.11.056

Cited by 93 publications

(45 citation statements)

References 28 publications

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“…As a local rain forest product, which is collected without cutting the palm tree, the marketing of caranan fiber contributes to preserving the Amazon forest. The selection of epoxy as the composite matrix was based on its superior mechanical, thermal and corrosion resistance among most polymer resins as well as easy processing with NLFs [ 31 , 35 ]. Based on reviews in the literature [ 36 , 37 ], a possible application in multilayered armor systems (MAS) is another motivation to study this combination of less-known NLF polymer composites [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Caranan Fiber from Mauritiella armata Palm Tree as Novel Reinforcement for Epoxy Composites

et al. 2020

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A growing environmental concern is increasing the search for new sustainable materials. In this scenario, natural lignocellulosic fibers (NLFs) became an important alternative to replace synthetic fibers commonly used as composites reinforcement. In this regard, unknown NLFs such as the caranan fiber (Mauritiella armata) found in South American rain forests revealed promising properties for engineering applications. Thus, for the first time, the present work conducted a technical characterization of caranan fiber-incorporated composites. Epoxy matrix composites with 10, 20 and 30 vol% of continuous and aligned caranan fibers were investigated by tensile tests, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Composites with more than 10% vol of caranan fibers significantly increase the elastic modulus and toughness in comparison to the neat epoxy. Indeed, the composite with 30 vol% was 50% stiffer, 130% tougher, and 100% stronger, which characterized an effective reinforcement. As for the elastic modulus, total strain and tensile toughness, there is a clear tendency of improvement with the amount of caranan fiber. The TGA disclosed the highest onset temperature of degradation (298 °C) with the least mass loss (36.8%) for the 30 vol% caranan fiber composite. It also displayed a higher degradation peak at 334 °C among the studied composites. The lowest glass transition temperature of 63 °C was obtained by DSC, while the highest of 113 °C by dynamic mechanical analysis (DMA) for the 30 vol% caranan composite. These basic technical findings emphasize the caranan fiber potential as reinforcement for polymer composites.

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Section: Introductionmentioning

confidence: 99%

Caranan Fiber from Mauritiella armata Palm Tree as Novel Reinforcement for Epoxy Composites

et al. 2020

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“…Epoxy composite shows flexural and tensile strength of 76.7 and 50.5 Mpa, respectively, which were higher than corresponding 49.1 and 25.4 Mpa for polyester composite. These results offer a potential application of epoxy composite in armor system for personal ballistic protection [87].…”

Section: Hemp-based Compositesmentioning

confidence: 73%

Plant Fibers-Based Sustainable Biocomposites

Yadav¹,

Srivastava²,

Vaya³

2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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Recognizing the facts of high cost, depleting natural feedstocks of energy and materials along with resulting effects by their production and use on environmental emission of green house gases into environment, potential efforts have been made on the use of low-cost, abundant availability, eco-friendly, and energysaving plant fibers-based biocomposites (PBB) and process. Properties of plant fiber-based biocomposites largely influenced by a number of variables, like fiber types, modification of fibers, processing techniques, and environmental condition. This chapter summarized the ancient to recent research on development of plant fibers-based green and sustainable composite materials types along with processing techniques and properties. Plant fibers-based biocomposites have been usefully used in the field of automobile, construction, packaging, medical, and other.

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“…The polymer used as matrix was a commercially available epoxy resin—bisphenol A diglycidyl ether (DGEBA) resin mixed with triethylenetetramine (TETA) hardener, stoichiometric phr = 13, both supplied by EpoxyFiber, Brazil. The volumetric fraction of fabric reinforcement was set as 30% in order to allow a comparison to other NLFs/epoxy composites [ 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. Figure 2 schematically illustrates a suggested model for the molecular structure of the fabric facing an epoxy macromolecule in the matrix.…”

Section: Methodsmentioning

confidence: 99%

Mechanical Properties of Boehmeria nivea Natural Fabric Reinforced Epoxy Matrix Composite Prepared by Vacuum-Assisted Resin Infusion Molding

et al. 2020

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Natural lignocellulosic fibers and corresponding fabrics have been gaining notoriety in recent decades as reinforcement options for polymer matrices associated with industrially applied composites. These natural fibers and fabrics exhibit competitive properties when compared with some synthetics such as glass fiber. In particular, the use of fabrics made from natural fibers might be considered a more efficient alternative, since they provide multidirectional reinforcement and allow the introduction of a larger volume fraction of fibers in the composite. In this context, it is important to understand the mechanical performance of natural fabric composites as a basic condition to ensure efficient engineering applications. Therefore, it is also important to recognize that ramie fiber exhibiting superior strength can be woven into fabric, but is the least investigated as reinforcement in strong, tough polymers to obtain tougher polymeric composites. Accordingly, this paper presents the preparation of epoxy composite containing 30 vol.% Boehmeria nivea fabric by vacuum-assisted resin infusion molding technique and mechanical behavior characterization of the prepared composite. Obtained results are explained based on the fractography studies of tested samples.

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Comparative mechanical properties between biocomposites of Epoxy and polyester matrices reinforced by hemp fiber

Cited by 93 publications

References 28 publications

Caranan Fiber from Mauritiella armata Palm Tree as Novel Reinforcement for Epoxy Composites

Caranan Fiber from Mauritiella armata Palm Tree as Novel Reinforcement for Epoxy Composites

Plant Fibers-Based Sustainable Biocomposites

Mechanical Properties of Boehmeria nivea Natural Fabric Reinforced Epoxy Matrix Composite Prepared by Vacuum-Assisted Resin Infusion Molding

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