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Natural fiber-reinforced composites are increasingly used in the automotive and aerospace industries since more studies focus on them because they are environmentally benign. The primary benefit of natural fibers over synthetic fibers is their biodegradability. In addition to meeting other standards, natural fiber-reinforced composites have high thermal and mechanical qualities. The current study’s main objective has been to investigate one such natural fiber-reinforced polymer. Biomaterials constructed of Abutilon indicum fiber reinforced with polyester were created in the current work. The test samples with the materials above underwent mechanical and thermal investigations to determine their strengths. The impact of alkali treatment (NaOH) on the fibers was also investigated and assessed.

The automobile industry is searching for materials that offer superior mechanical and thermal properties. With this objective, the current study delves into the potential advantages of integrating nanofillers into hybrid composite structures tailored for vehicle applications. The investigation employed Kevlar fiber, a renowned material in vehicular composites, and reinforced it with an epoxy matrix, crafting a nanocomposite surface. This method was paralleled by incorporating nanoparticle-infused resin into the Kevlar fiber. The concentration of nano clay within the epoxy resin was adjusted across different weight percentages: 2.5%, 5%, 7.5%, and 10%. Both composite and nanomaterial panels were meticulously crafted using the hand layup method post-curing. The outcome was enlightening: the tensile strength of the clay/epoxy/Kevlar composite surged by 10.54% at the 7.5 wt% clay concentration. This enhancement, however, saw a decline in higher clay incorporations.

Vehicle occupant protection remains a critical concern in the field of crashworthiness technology. When integrated into polymer nanocomposites, natural fibres like sisal offer a high strength-to-weight ratio that can contribute to effective energy absorption during collisions. However, these fibers present challenges, such as poor hydrophilicity and moisture retention. This study employs compression molding techniques to create hybrid composites of sisal fibers, epoxy, and titanium oxide nano fillers. We particularly investigate how fiber orientation and the concentration of nano fillers can optimize mechanical and thermal properties, thereby enhancing occupant protection features. Our findings demonstrate that the orientation of sisal fibers and the incorporation of titanium oxide nano fillers in the epoxy matrix significantly influence the composite's mechanical and thermal characteristics.

Automobile parts often require materials that offer high strength and durability. With the continuous push for environmentally friendly solutions, natural fibers such as jute have emerged as a potential alternative for synthetic fibers in automobile components. In this study, we aim to enhance the properties of jute fibers by coating them with different polymers and assessing their suitability for automotive applications. We treated jute fibers with various polymers—low-density polyethylene, polyester, and araldite epoxy. The performance of these treated fibers was compared using fiber tensile experimentation, differential calorimetry, and dynamic mechanical evaluation. Our findings reveal that the treated jute fibers exhibit a tensile strength of 598 MPa. However, when coated with polymers, there’s a variance in strength: polyethylene (263 MPa), polyester (191 MPa), and epoxy (281 MPa).

Researchers have chosen to study natural fibers instead of synthetic fibers since low-cost and ecologically favorable materials are required. The present research concentrates on the mechanical characteristics of epoxy composites reinforced with bamboo and bagasse fibers. The hybrids were created using four different ratios of bamboo/bagasse fibers, then hand-laid up. The material characteristics of the generated composites, including tension, bending, impacts, and Shore D hardness measurements, were assessed. The scanning electron microscopy technique was used to study morphology. Three levels of bamboo and a core network of bamboo fibers in composites were assumed to generate superior qualities. The core layer of bamboo and an outer layer typically characterized by sugarcane composites have enhanced flexural strength and Shore D toughness because of the bamboo layer at the center.

In order to determine if carbon–luffa hybrid composites are appropriate for automotive applications, this study gives a thorough mechanical evaluation of such materials. A potential path to improving the performance of automotive components is provided by combining the remarkable strength and stiffness of carbon fibers with the lightweight and environmentally friendly qualities of luffa fibers. The mechanical characteristics of the hybrid composites were characterized using a variety of experimental examinations, including tensile, flexural, and impact testing, and contrasted to those of traditional materials often used in the automobile sector. The composite containing 85% epoxy and 15% carbon fibers displayed the best tensile strength among the examined samples, reaching 168.58 MPa. However, 85% epoxy, 7.5% luffa, and 7.5% carbon fibers had a remarkable bending strength of 110.25 MPa.