Natural fiber reinforced composites: Sustainable materials for emerging applications

Khalid, Muhammad Yasir; Rashid, Ans Al; Arif, Zia Ullah; Ahmed, Waqas; Arshad, Hassan; Zaidi, Asad A.

doi:10.1016/j.rineng.2021.100263

Cited by 336 publications

(133 citation statements)

References 114 publications

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“…To compensate for some deficiencies of natural fibres, such as their lower thermal stability, increased water absorption capacity and less incompatibility with the polymer matrix, researchers are constantly discovering new methods for obtaining composite materials with new properties. In the future, these composite materials are expected to play an increasingly important role [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Stelea

Filip²,

Lisă

et al. 2022

Polymers

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Hemp fibres used as a reinforcing agent and three polymeric matrices (polypropylene, bicomponent, recycled polyester) were used to obtain composite materials by needle punching and heat pressing. The influence of the hemp/matrix ratio and the nature of the matrix on the properties of the composites were analysed. The obtained composites were characterised by physical–mechanical indices, thermal analysis (thermogravimetry (TG), differential thermogravimetry (DTG) and Differential Scanning Calorimetry (DSC)), Fourier Transform Infrared Spectroscopy (FTIR-ATR) analysis, Scanning Electron Microscopy (SEM) and Chromatic measurements. The mechanical properties of composites are influenced by both the hemp/matrix ratio and the nature of the matrix. The thermal stability of composites decreased as the amount of hemp increased (for the same mass losses, the decomposition temperature decreased significantly for composites containing a quantity of hemp greater than 50%). Regarding the nature of the matrix, for the same mass loss, the highest decomposition temperature was presented by the composites containing recycled polyester as matrix, and the lowest one was presented by composites containing polypropylene fibres as matrix. The FTIR and SEM analyses highlight the changes that occurred in the structure of the composite, changes determined both by the amount of hemp in the composite and by the nature of the matrix.

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Section: Introductionmentioning

confidence: 99%

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Stelea

Filip²,

Lisă

et al. 2022

Polymers

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“…Consequently, these materials are presently being investigated for various engineering applications. Further research work committed to this topic is still needed in order to investigate the performance and other features related to bio-composites and their ingredients [ 1 , 2 ]. Recently, wood samples cut from a wide range of species were utilized as fillers in wood polymer–plastic composites.…”

Section: Introductionmentioning

confidence: 99%

New Synthesis Routes toward Improvement of Natural Filler/Synthetic Polymer Interfacial Crosslinking

et al. 2022

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Among the critical issues dictating bio-composite performance is the interfacial bonding between the natural fibers and polymer matrix. In this regard, this article presents new synthesis routes comprising the treatment and functionalization of both date palm powder (DPP) filler and a polypropylene (PP) matrix to enhance filler–polymer adhesion in the newly developed bio-composites. Specifically, four bio-composite forms are considered: untreated DPP filled PP (DPP-UT/PP), treated DPP filled PP (DPP-T/PP), treated DPP filled functionalized PP using 2-isocyanatoethyl methacrylate (DPP-T/PP-g-IEM), and treated and functionalized DPP using 4-toluenesulfonyl chloride filled functionalized PP using 2-acrylamide ((DPP-T)-g-TsCl/PP-g-AcAm). The functional groups created on the surface of synthesized PP-g-IEM react with activated hydroxyl groups attached to the filler, resulting in chemical crosslinking between both components. Similarly, the reaction of TsCl with NH2 chemical groups residing on the mating surfaces of the filler and polymer generates an amide bond in the interface region. Fourier transform infrared spectroscopy (FTIR) is used to confirm the successful coupling between the filler and polypropylene matrix after applying the treatment and functionalization schemes. Owing to the introduced crosslinking, the DPP-T/PP-g-IEM bio-composite exhibits the best mechanical properties as compared to the neat polymer, unfunctionalized polymer-based bio-composite, and (DPP-T)-g-TsCl/PP-g-AcAm counterpart. The applied compatibilizers assist in reducing the water uptake of the manufactured bio-composites, increasing their durability.

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“…Fiber-reinforced composites can be classified according to fiber length into composites with continuous fibers (long fibers) and discontinuous fibers (short fibers) (Rajak, 2019), their mechanical behavior is influenced by several parameters, such as fiber volumetric fraction, fiber length, fiber-matrix adhesion, fiber orientation and stress transfer at the interface (Acosta, 2021). It can be used as a sustainable option in automobiles, aircraft interiors, civil construction, textiles, furniture, medicine and pharmaceuticals, domestic and personal care (Peças, 2018;Khalid, 2021;Neves, 2020). In research on the development of composite boards/panels, (Uppal 2019) evaluated the impact of the incorporation of 5 mm chopped sisal fiber mat on the mechanical behavior of polyester composites.…”

Section: Introductionmentioning

confidence: 99%

Properties of flexural and impact of matrix composites polyester reinforced with short lignocellulosic fibers

Silva

Ribeiro

Rodrigues

et al. 2022

RSD

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Composite materials stand out for enabling the development of new materials that are environmentally friendly, whose manufacturing processes and waste are increasingly less harmful, associated with good mechanical properties. In this context, this work sought to investigate the mechanical behavior in flexural and impact of polyester matrix composites with the inclusion of short fibers of sisal, piassava, raffia, mallow and jute arranged randomly. The mechanical properties of flexural were evaluated according to ASTM D 790 and the impact toughness Charpy with the ASTM D 6110 standard. The results showed that when subjected to flexural stresses, the composites presented resistance of 112 .12 MPa for the neat matrix and 35.21; 34.45; 27.29; 25.89 and 20.56 MPa with the inclusion of sisal, piassava, raffia, mallow and jute fibers, respectively. As for the impact test, they showed values of 31.50 kJ/m² for the neat matrix and 57.06; 52.52; 48.03; 38.02; 37.65 kJ/m² with the inclusion of sisal, piassava, raffia, mallow and jute fibers, respectively. Then, the fracture surface of the composites was analyzed with a microscope in order to correlate the fracture aspects with the mechanical properties.

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Natural fiber reinforced composites: Sustainable materials for emerging applications

Cited by 336 publications

References 114 publications

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

Characterisation of Hemp Fibres Reinforced Composites Using Thermoplastic Polymers as Matrices

New Synthesis Routes toward Improvement of Natural Filler/Synthetic Polymer Interfacial Crosslinking

Properties of flexural and impact of matrix composites polyester reinforced with short lignocellulosic fibers

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