Ultrasonic Welding of Banana/ Bagasse Based Polypropylene Composites

Rana, Ram Singh; Kumar, Jayant; Singh, Y. P.; Naik, Tejas Pramod; Singh, Inderdeep; Sharma, Apurbba Kumar

doi:10.1080/15440478.2022.2133054

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…5,9 Because synthetic fibers are expensive, non-eco-friendly in nature most studies are now being focused on natural fibers. 10,11 Jute, kenaf, hemp, flax, chicken feathers, agricultural residue, pine needle, etc. are some of the natural fibers being used to fabricate composites.…”

Section: Introductionmentioning

confidence: 99%

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Microwave‐assisted molding of sisal/HDPEcomposites: Water absorption, diffusion kinetics and tribological behavior

et al. 2023

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Recyclability and environmental safety have prompted research toward clean and energy‐efficient manufacturing technologies for natural fiber‐reinforced composites. In the current investigation sisal/HDPE composites were fabricated using a novel energy and time efficient microwave‐assisted molding (MAM) method. Sisal fibers were successfully treated with novel microwave‐assisted alkali treatment (MAAT) at 640 W microwave power. For the outdoor application the effect of treatment method on mechanical properties, water absorption, and tribological behavior of the developed composites were studied. The treated composites have been found to absorb less water by 45.28% as compared to untreated (UT). The developed composites recorded increase in tensile strength (36.5%), flexural strength (41.05%), and hardness (4.38%) as compared to UT composites, which could be attributed to effective partial removal of non‐cellulosic content after treatment from fiber surface. During the wear test, sisal/HDPE composite was employed as a pin, and the abrasive paper (P1000) served as a counter surface in the pin‐on‐disc (POD) arrangement for two‐body abrasive wear. The SWR, COF, and friction force values of the treated composites reduced by about 61.72%, 33.33%, and 34%, respectively, as compared to those for the UT composites at minimum normal load (10 N) and sliding speed (0.5 m/s) which was due to positive effect of MAAT. Scanning electron microscope was used to examine the worn surface of composites to understand the mode of wear mechanism.Highlights Novel microwave‐assisted alkali treatment (MAAT) was used for treatment of fibers. MAAT increased the fiber roughness. Microwave‐assisted molding was used for fabrication of composites. The water absorption behavior followed the Pseudo Fickian diffusion mechanism. Polymeric composites with MAAT fiber had optimum performance.

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Section: Introductionmentioning

confidence: 99%

“…Carbon, glass, graphite and kevlar fibers are commercially utilized synthetic fibers 5,9 . Because synthetic fibers are expensive, non‐eco‐friendly in nature most studies are now being focused on natural fibers 10,11 . Jute, kenaf, hemp, flax, chicken feathers, agricultural residue, pine needle, etc.…”

Section: Introductionmentioning

confidence: 99%

Microwave‐assisted molding of sisal/HDPEcomposites: Water absorption, diffusion kinetics and tribological behavior

et al. 2023

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“…As per the Indian economic perspective, the agricultural sector significantly impact the economy as it directly or indirectly employs 50% of the workforce. 4,5 Thus, the products based on residues of plants, such as, banana plant (India is the largest producer of banana crops worldwide) and aloe vera plant, which is having numerous applications in pharmaceutical and cosmetic industries (spread across Gujarat, Rajasthan, Andhra Pradesh, Maharashtra, and Tamil Nadu regions of India), would attract employment opportunities for the people residing in rural areas of India. 6 The necessary evolution in product design to address the demand of emerging markets requires the technologies/techniques which facilitate easy replacement of subcomponents or parts, thereby, leading to modular design.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of drilled and molded holes in short natural fiber reinforced composites

Rana

Kumar

Singh

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Recently, the demand for natural fiber based composite products as compared to synthetic fiber based products has increased manifold due to their salient characteristics, such as biodegradability, non-toxicity, and sustainability. Hole-making is an inevitable operation to ascertain the structural integrity of complex composite products. Thus, a comparative assessment has been reported between the molded and drilled holes in two types of composites, that is, aloe vera fiber and banana fiber based epoxy composites. The performance of fabricated composites was compared based on load bearing capacity under tensile loading conditions. The molded hole specimens recorded 10.7% (aloe vera based) and 17.2% (banana fiber based) higher failure load as compared to the drilled hole specimens of similar type of composites. The aloe vera fiber based composite specimens, such as, specimens without hole, molded hole, and drilled hole, recorded higher failure load (102%, 45.6%, and 54.1%, respectively) as compared to banana fiber based composites. The quality of molded and drilled holes (before and after fracture) was also assessed using stereomicroscope and field emission scanning electron microscopy images. The microstructural assessment helped to correlate the variation in the mechanical properties of tested specimens with the quality of the holes produced. This study also revealed that the molded hole specimens have better hole quality than the drilled hole specimens in case of both types of composites. The defects like sharp edges, burrs, cracks, and uncut fibers were found to be absent in case of molded hole specimens. Whereas, these defects create the stress concentration zone in drilled hole specimens which is responsible for their lower strength values.

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Comparative assessment of failure in single shear lap joints fabricated using various joining techniques

Kaushik,

Singh

2024

Engineering Failure Analysis

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Ultrasonic Welding of Banana/ Bagasse Based Polypropylene Composites

Cited by 5 publications

References 34 publications

Microwave‐assisted molding of sisal/HDPEcomposites: Water absorption, diffusion kinetics and tribological behavior

Microwave‐assisted molding of sisal/HDPEcomposites: Water absorption, diffusion kinetics and tribological behavior

Comparative analysis of drilled and molded holes in short natural fiber reinforced composites

Comparative assessment of failure in single shear lap joints fabricated using various joining techniques

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