Alumina Recovery from Industrial Waste: Study on the Thermal, Tensile and Wear Properties of Polypropylene/Alumina Nanocomposites

Sufian, Anis Sofia; Samat, Noorasikin; Sulaiman, Meor Yusoff Meor; Paulus, Wilfred

doi:10.1007/s40684-019-00135-z

Cited by 10 publications

(6 citation statements)

References 19 publications

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“…The enhancement of polypropylene (PP) composite thermal stability was also observed by Sufian and coworkers [38] through the incorporation of α-alumina (α-Al 2 O 3 ) obtained from wastes of aluminum production. The residue contains aluminum oxide and salts, and the disposal in landfills can release noxious gases in the environment.…”

Section: Industrial Residuesmentioning

confidence: 53%

Eco‐friendly polymer composites: A review of suitable methods for waste management

Cabrera

2021

Polymer Composites

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The amount of residues generated by agriculture, industrial, or urban activities continuously increases and, consequently, demands several methods for their correct management. The incorrect disposal can cause, in specific cases, environmental contamination by heavy metals or leaching as well as promote the spread of diseases as insect proliferation. Commonly, landfilling, incinerating, composting, or energy/fuel generation can control the disposal or reuse of residues. Among the methods for the reuse of wastes, the incorporation of residues as fillers in polymer composites has emerged as a distinct field. Some composites can potentially mitigate leaching compounds or improve mechanical, thermal, and acoustic properties. However, these improvements are a challenge to promote the use of waste fillers. Thus, this study aims to provide a state of view regarding a variety of wastes used as fillers in polymer composites and different methods to reach mechanical reinforcement as well as improve thermal conductivity and acoustic attenuation for future researches.

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Section: Industrial Residuesmentioning

confidence: 53%

Eco‐friendly polymer composites: A review of suitable methods for waste management

Cabrera

2021

Polymer Composites

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“…The authors indicated that the lowest wear rate was exhibited by a composite variant containing the highest amount of the dross (i.e., 40 wt %). The same aluminum dross was used to produce micro- and nanosized alumina, which was further utilized as a filler (0–7 wt %) in PP-based composites [ 92 ]. The lowest wear rate was exhibited by the composite reinforced with 7 wt % of nanosized alumina, but each of the tested variants performed better than pure PP.…”

Section: Industrial Waste Materialsmentioning

confidence: 99%

Tribological Performance of Composites Reinforced with the Agricultural, Industrial and Post-Consumer Wastes: A Review

Sydow

Wojciechowski

et al. 2021

Materials

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Waste management is still one of the leading global challenges in the 21st century. From the European Union’s point of view, the Waste Framework Directive obliges businesses and households to recycle at least 55% of their municipal waste by 2025 and to reach 65% in 2035. Hence there is a great need to seek new solutions for the reuse of various waste materials. One of the most widely used wastes is their utilization as fillers or reinforcements in the metal- or polymer-based composites. The reuse of wastes for the production of tribological materials gives not only environmental benefits related to the transformation of waste into raw materials but also may improve the mechanical and tribological properties of such materials. Moreover, the use of waste reduces the production costs resulting from the lower price of filler materials and longer service life of developed products. The purpose of the current review is, therefore, aimed at the evaluation of the reuse of agricultural, industrial and postconsumer wastes as reinforcements in the composites used for tribological applications. The tribological performance (wear rate, coefficient of friction) of both monolithic and hybrid composites reinforced with waste materials was a particular subject of interest in this review.

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“…Due to the characteristics of regular morphology, good mobility, high packing density, high specific surface area, and good sintering properties, spherical α-Al 2 O 3 nanoparticles have a broad application prospect in composite materials, thin films for microelectronics, integrated circuit substrates, 3D printing, and precision polishing. [5][6][7][8][9][10] Therefore, the key issues and process regulation in the preparation process of spherical α-Al 2 O 3 nanoparticles have received extensive attention. Although they can be synthesized in one step by solid-phase methods such as mechanochemical 11 and combustion methods, 12 in order to achieve a better control of the particle morphology and obtain a pure phase composition, spherical precursor nanoparticles are usually prepared first by liquid-phase methods such as homogeneous precipitation, 13,14 hydrothermal, 15 microemulsion methods, 16 spray pyrolysis 17,18 , and then spherical α-Al 2 O 3 nanoparticles are obtained by high-temperature calcination.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it is well known that the application property of α‐Al 2 O 3 is determined by its morphology, size, and dispersibility. Due to the characteristics of regular morphology, good mobility, high packing density, high specific surface area, and good sintering properties, spherical α‐Al 2 O 3 nanoparticles have a broad application prospect in composite materials, thin films for microelectronics, integrated circuit substrates, 3D printing, and precision polishing 5–10 . Therefore, the key issues and process regulation in the preparation process of spherical α‐Al 2 O 3 nanoparticles have received extensive attention.…”

Section: Introductionmentioning

confidence: 99%

Preparation of spherical α‐Al₂O₃ nanoparticles by microwave hydrothermal synthesis and addition of nano‐Al seeds

Wang

Mai

et al. 2022

J Am Ceram Soc.

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Due to their special appearance, spherical α‐Al2O3 nanoparticles play an important role for obtaining high‐performance structural and functional ceramics. However, there are still problems such as easily agglomerates to form worm‐like structures at high temperatures and difficult availability of spherical nanoparticles. In this study, spherical α‐Al2O3 nanoparticles with high dispersion were prepared by a combination of a microwave hydrothermal method and an addition of nano‐Al particles as seeds. First, spherical amorphous alumina precursors were synthesized by the microwave hydrothermal method at 100°C for 30 min using Al2(SO4)3·18H2O, Al(NO3)3·9H2O, and urea, as raw materials, and then spherical α‐Al2O3 nanoparticles with a diameter of about 66 nm were acquired after calcined the precursor at 1050°C for 90 min by adding nano‐Al seeds, which reduced the calcination temperature by 50°C and holding time by 30 min compared to that without seeds. Kinetic analysis shows that 5 wt.% nano‐Al seeds can reduce the activation energy of crystalline transition of γ‐Al2O3 to α‐Al2O3 from 516.51 to 474.37 kJ/mol. Moreover, the microscopic mechanism of nano‐Al particles as seeds was investigated. The characterizations of sintering properties show that spherical α‐Al2O3 nanoparticles facilitate the acquisition of uniform microstructure for resulting ceramic and the fracture modes include both intergranular and transgranular fractures.

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Alumina Recovery from Industrial Waste: Study on the Thermal, Tensile and Wear Properties of Polypropylene/Alumina Nanocomposites

Cited by 10 publications

References 19 publications

Eco‐friendly polymer composites: A review of suitable methods for waste management

Eco‐friendly polymer composites: A review of suitable methods for waste management

Tribological Performance of Composites Reinforced with the Agricultural, Industrial and Post-Consumer Wastes: A Review

Preparation of spherical α‐Al₂O₃ nanoparticles by microwave hydrothermal synthesis and addition of nano‐Al seeds

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Alumina Recovery from Industrial Waste: Study on the Thermal, Tensile and Wear Properties of Polypropylene/Alumina Nanocomposites

Cited by 10 publications

References 19 publications

Eco‐friendly polymer composites: A review of suitable methods for waste management

Eco‐friendly polymer composites: A review of suitable methods for waste management

Tribological Performance of Composites Reinforced with the Agricultural, Industrial and Post-Consumer Wastes: A Review

Preparation of spherical α‐Al2O3 nanoparticles by microwave hydrothermal synthesis and addition of nano‐Al seeds

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Preparation of spherical α‐Al₂O₃ nanoparticles by microwave hydrothermal synthesis and addition of nano‐Al seeds