Recycling of industrial waste based on jute fiber-polypropylene: Manufacture of sustainable fiber-reinforced polymer composites and their characterization before and after accelerated aging

Sanvezzo, Paula Bertolino; Branciforti, Márcia Cristina

doi:10.1016/j.indcrop.2021.113568

Cited by 29 publications

(21 citation statements)

References 53 publications

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“…The presence of jute fibers led to a 135% improvement in the elastic modulus and decreased the deformation at break from 435% to 5%. The presence of nanocalcium carbonate (N) increased elastic modulus by 18% and decreased deformation at break from 435% to 61% [16]. According to Figure 5a, results of yield stress after natural aging (168 days) indicated a certain decrease for all samples, while after accelerated aging (30 days) it showed a slight decrease only in the compositions with no jute fiber (PP and PPM samples).…”

Section: Tensile Propertiesmentioning

confidence: 96%

“…The dimension of the specimens followed Type I geometry, according to ASTM D638. All extruded pellets and injection-molded samples were dried at 40 • C under vacuum for 24 h before tests [16].…”

Section: Manufacture Of Compositesmentioning

confidence: 99%

“…The aging program consisted of cycles of 22 h irradiation per day and 24 h of moisture and heat exposure. The specimens were exposed to UV-A light 22 h per day, at 50 • C, for 30 days, resulting in 660 h of UV-A exposure and 720 h of heat and moisture exposure [16].…”

Section: Accelerated Agingmentioning

confidence: 99%

“…The presence of jute fibers led to a 135% improvement in the elastic modulus and decreased the deformation at break from 435% to 5%. The presence of nano-calcium carbonate (N) increased elastic modulus by 18% and decreased deformation at break from 435% to 61% [16]. After accelerated aging (30 days), a significant decrease in all CA values was observed, demonstrating that the accelerated aging program exposed the materials to much more severe conditions when compared to the natural aging exposure.…”

Section: Tensile Propertiesmentioning

confidence: 99%

“…Considering that the industrial waste is composed of biodegradable natural jute fiber and non-biodegradable plastics-i.e., it has a mixed nature-previous research focused on the development of a durable composite material, with desired high-performance properties. For this purpose, researchers have used nano-calcium carbonate as a mineral filler, in addition to the natural jute fiber reinforcement, and a compatibilizer for improving fiber-matrix interactions [16]. Afterward, another study concentrated on investigating strategies for getting this durable composite material into the market [17]-street furniture was among the highest-rated for the application of the developed material.…”

Section: Introductionmentioning

confidence: 99%

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Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

2021

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Population growth and the way resources are being exploited are directly affecting the environment. The natural fiber market, for example, is worth billions of dollars and a huge amount of the fibers becomes waste. This considerable amount of waste motivates the study of the fibers as a reinforcement in polymeric matrix, which benefits both the environmental sustainability and technical-commercial development of new materials with good properties and reduced cost. In this study, jute fiber-reinforced composites previously manufactured from an industrial waste (W), polypropylene, compatibilizer, and nano-calcium carbonate (N), were exposed to natural and accelerated aging. The composites were tested by infrared spectroscopy, contact angle (CA) measurement, and tensile test. Infrared analysis showed greater oxidative degradation after accelerated aging. All CA values continued above 90° after natural aging. Among all compositions, the ones with the presence of N had the highest CA values, showing that N acted as a waterproofing agent. After accelerated aging, a significant decrease in all CA values was observed. The composites did not show significant variation in the elastic modulus after either aging. Deformation at break decreased significantly for compositions with no jute fiber in both aging programs. No remarkable reduction was observed in the compositions with jute fibers.

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Section: Tensile Propertiesmentioning

confidence: 96%

Section: Manufacture Of Compositesmentioning

confidence: 99%

Section: Accelerated Agingmentioning

confidence: 99%

Section: Tensile Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

2021

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Influence of water absorption track and pre‐drying treatment on the long‐term hydrothermal aging behavior of recycled jute fabric‐reinforced composites

Yu,

Zhao,

et al. 2023

Polymer Composites

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Corrosion resistance and durability are always considered in the safety design of composite materials. In this study, recycled jute woven fabrics from coffee bags were used to fabricate jute/unsaturated polyester composites. The effect of water absorption and pre‐drying treatment on the long‐term hydrothermal aging behavior of the prepared composites, as well as the aging mechanism, was discussed. The hydrothermal aging test was performed at a fixed temperature of 80°C for specified conditioning times of 24, 120, 240, 480, and 720 h. Weight gain and weight loss values were recorded and compared. The mechanical properties were evaluated using a three‐point bending test and observations of the fracture area. The results showed similar water uptake and flexural behaviors between the composites with different pre‐drying treatments, especially after long‐term hydrothermal aging. It was also found that the moisture diffusion of the composite followed a Fickian process, and the flexural properties of the bending specimens at every position reduced with the aging time and initially decreased rapidly during the first 24 h of aging. In particular, the reduction rate in flexural properties generally followed the sequence of NO.1 > NO.2 > NO.6 > NO.5. Additionally, the aging mechanism study revealed three steps for the composites during the water absorption process. The inclusion of jute fiber as a composite material in this research provides insight into the water‐absorption mechanism of jute fabric‐reinforced polymer composite (JFRP).Highlights Recycled jute fabric‐reinforced composites were produced using jute fabrics obtained from recycled coffee bags. The effect of the water absorption track and pre‐drying treatment on the long‐term hydrothermal aging behavior of recycled jute fiber‐reinforced composite and its aging mechanism is discussed. The clarification of the aging mechanism indicates that there are three steps involved in the water absorption process. Considering jute fiber as a composite could help explain the water‐absorbing mechanism of JFRP.

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Research on properties and cellular structure of nano‐CaCO₃/rice‐husk fiber/polypropylene three‐phase thermoplastic microcellular foaming composites

Cai,

Liu,

Guo

et al. 2024

Polymer Composites

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Microcellular foamed plant fiber composites have the advantages of low density, low cost, and biodegradability, so it has great development potential in the industry. Nevertheless, the existence of cellular structures diminishes the mechanical performance of plant fiber composites. To overcome this problem, in this study, nano‐CaCO3 was used to enhance the microcellular foamed plant fiber composites, and the three‐phase thermoplastic composites, comprised of nano‐CaCO3, rice‐husk fiber, and polypropylene (PP), were fabricated using a chemical foaming injection molding technique. The study analyzed how the nano‐CaCO3 concentration affected the melt viscosity, crystallization characteristics, mechanical properties, and cellular structure of the composites. According to the findings, the mechanical characteristics of microcellular foamed three‐phase thermoplastic composites were enhanced initially and subsequently diminished as the nano‐CaCO3 content was augmented, and obtained optimal value at 2 wt% nano‐CaCO3 content. By observing the cells of microcellular foamed three‐phase thermoplastic composites in vertical and parallel melt flow directions, it was found that the nano‐CaCO3 content of 2 wt% three‐phase thermoplastic composite had the best cellular structure.Highlights The role of nano‐CaCO3 in plant fiber composite materials was explored. The relationship between the content of nano‐CaCO3 and the various properties of tri‐phasic plant fiber composite materials was demonstrated. The mechanisms by which nano‐CaCO3 enhances plant fiber composite materials were analyzed at both macroscopic and microscopic levels.

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Recycling of industrial waste based on jute fiber-polypropylene: Manufacture of sustainable fiber-reinforced polymer composites and their characterization before and after accelerated aging

Cited by 29 publications

References 53 publications

Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

Influence of water absorption track and pre‐drying treatment on the long‐term hydrothermal aging behavior of recycled jute fabric‐reinforced composites

Research on properties and cellular structure of nano‐CaCO₃/rice‐husk fiber/polypropylene three‐phase thermoplastic microcellular foaming composites

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Recycling of industrial waste based on jute fiber-polypropylene: Manufacture of sustainable fiber-reinforced polymer composites and their characterization before and after accelerated aging

Cited by 29 publications

References 53 publications

Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

Degradation of Polypropylene and Jute Fiber-Reinforced Composites Exposed to Natural and Accelerated Aging: Mechanical Properties and Wettability

Influence of water absorption track and pre‐drying treatment on the long‐term hydrothermal aging behavior of recycled jute fabric‐reinforced composites

Research on properties and cellular structure of nano‐CaCO3/rice‐husk fiber/polypropylene three‐phase thermoplastic microcellular foaming composites

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Product

Resources

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Research on properties and cellular structure of nano‐CaCO₃/rice‐husk fiber/polypropylene three‐phase thermoplastic microcellular foaming composites