Effect of hybrid eco‐friendly reinforcement and their size on mechanical and flame retardant properties of polypropylene composites for technical applications

Mai Nguyen Tran, Thanh; M.N., Prabhakar; Lee, Dong‐Woo; Song, Jung‐il

doi:10.1002/pc.27930

Cited by 8 publications

(1 citation statement)

References 92 publications

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“…Different researchers have adopted different approaches to discover eco-friendly hybrid natural fibers for various engineering applications. Tran et al 21 studied the microstructural properties of a polymer matrix and evaluated the effect of the reinforcement size, with a particular focus on fire sensitivity. Another researcher 22 studied The influence of equi-biaxially fabric pre-stressing on the flexural performance of woven E-glass/polyester-reinforced composites.…”

Section: Introductionmentioning

confidence: 99%

Development of hybrid green composites by dual natural fibers (jute/bamboo) reinforcement and investigation of their mechanical behavior

Abraha Guangul,

Prabhakar,

Lee

et al. 2024

Polymer Composites

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This study aims to investigate the mechanical properties of natural fiber hybrid composites, specifically those based on jute and bamboo fibers. Jute fibers made in the form of highly scattered mesh and fine‐meshed bamboo mat were selected as reinforcing materials. The highly scattered meshed jute fabric composite showed poor mechanical properties owing to resin agglomeration, leading to the brittle fracture of the composite before elongation. In contrast, the randomly oriented fine‐meshed bamboo fabric performed better in terms of both mechanical properties and strain energy absorption under the same loading conditions. Hybridization with fine bamboo mesh fibers can be a solution to improve the mechanical properties of jute fabric composites. The tensile, flexural, and in‐plane shear properties of the composites are investigated in our study. We found that hybridizing a fine‐meshed bamboo mat with jute fabric resulted in an improved mechanical performance of the composite. Composite panels have been manufactured using vacuum assisted resin transfer molding (VARTM). Experimental and numerical methods have been used to investigate the flexural behavior. Of the stacking sequences considered, the (J/B4/J) stacking showed the highest flexural strength (141.1 Mpa) and the (B2/J2/B2) 2/2 stacking sequence showed the minimum flexural strength. The alternating stacking sequence (B/J/B/J/B/J) exhibited intermediate properties. The randomly oriented bamboo fabric near the neutral axis enhanced the properties of the hybridized composite. This was verified numerically using the ANSYS ACP software.Highlights Mechanical behavior of Hybrid composite of two natural fibers was investigated. Vacuum assisted resin transfer molding was used to manufacture composite panels. Tensile, in plane shear, 3 point flexural tests and SEM micro analysis were done. FEA was used to validate and compare the experimental and numerical results. Resin agglomeration was improved by fibers with better resin impregnation property.

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Section: Introductionmentioning

confidence: 99%

Development of hybrid green composites by dual natural fibers (jute/bamboo) reinforcement and investigation of their mechanical behavior

Abraha Guangul,

Prabhakar,

Lee

et al. 2024

Polymer Composites

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Multi‐objective optimization of hybrid polypropylene composites for enhanced mechanical, thermal, and flame‐retardant properties

Mai Nguyen Tran,

Dang,

Prabhakar

et al. 2024

Polymer Composites

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Optimizing composite materials is crucial for engineering advancements because it allows for the creation of materials tailored to specific functional requirements, thereby enhancing efficiency, safety, and sustainability. This study examines both the combined and individual effects of long flax fiber (LFF) bundles, short basalt fibers (BF), and rice husk powder (RHP) on the properties of polypropylene (PP) hybrid composites. LFF primarily provides mechanical strength, BF enhances mechanical, thermal, and flame‐retardant properties by filling gaps, and RHP reinforces and improves the overall composite. Contrary to previous studies that relied on random combinations, this research employs a systematic Box–Behnken design (BBD) for three variables: LFF plies, BF, and RHP by weight percentage. This approach facilitated the development of a new second‐order regression equation via response surface methodology (RSM), clarifying the contribution of each component, with R2 values exceeding 0.85, indicating high predictability. Optimization, conducted using a non‐dominated sorting genetic algorithm (NSGA‐II), demonstrated that the optimal composites significantly outperformed the non‐optimized ones in mechanical strength, thermal stability, and flame retardancy. Compared to the average values before optimization, improvements post‐optimization included increases of 49.86% in tensile strength (TS), 38.82% in TS modulus, 73.93% in char yield (YC), and 29.81% in peak heat release rate (pHRR). Specifically, the fire performance index improved by 237.5% and the fire growth index by 101.33%, compared to pure PP, highlighting significant advancements in fire safety. This study shows that mathematical equations can predict composite properties, helping to select balanced compositions without sacrificing flammability.Highlights Multi‐filler approach technique used for manufacturing of PP composites. LFF, BF & RHP optimize mechanics & flammability. Box–Behnken design predicts optimal composition for superior properties. NSGA‐II optimization improves tensile, thermal & flame retardant properties.

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Improving insulation performance with woven flax/PP hybrid composite reinforced by synthetic alumina and aluminum trihydrate

Selvam,

Saravanan,

Palanisamy

et al. 2024

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Effect of hybrid eco‐friendly reinforcement and their size on mechanical and flame retardant properties of polypropylene composites for technical applications

Cited by 8 publications

References 92 publications

Development of hybrid green composites by dual natural fibers (jute/bamboo) reinforcement and investigation of their mechanical behavior

Development of hybrid green composites by dual natural fibers (jute/bamboo) reinforcement and investigation of their mechanical behavior

Multi‐objective optimization of hybrid polypropylene composites for enhanced mechanical, thermal, and flame‐retardant properties

Improving insulation performance with woven flax/PP hybrid composite reinforced by synthetic alumina and aluminum trihydrate

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