Effects of calcium oxide on the surface properties of industrial sludge by analyzing rheological and electrical properties

Mortadi, A.; Elmelouky, A.; Chahid, El Ghaouti; Essajai, R.; Naserllah, H.; Chahbi, M.; Ghyati, N. El; Zaim, Soumia; Cherkaoui, Omar; Moznine, Reddad El

doi:10.1016/j.jece.2020.103764

Cited by 11 publications

(2 citation statements)

References 29 publications

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“…A Herschel-Bulkley modified model was used to study rheological properties curves by A. Mortadi [23]. They studied the influence of CaO content on the rheological properties of sludge and well revealed the transition process of sludge coagulation process combined with electrical properties research [24,25]. In this case, Herschel-Bulkley model was chosen because preliminary attempts in Fig.…”

Section: Tg-dsc Analysismentioning

confidence: 99%

Development rheological and thermal properties of a novel propellant RDX/TEGDN/NBC

Xiaorui

Luo

Zhu³

et al. 2020

SN Appl. Sci.

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To meet the high energy and high strength requirements of advanced propellants, a novel propellant RDX/TEGDN/NBC was designed by hexogen that was also called RDX and triethylene glycol dinitrate/nitrated bacterial cellulose (TEGDN/ NBC) composite. The basic properties such as structure, morphology and thermal properties were characterized by fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and simultaneous thermal analysis (TG-DSC). The rheological properties were measured by rheometer and the effects of RDX content were studied by steady flow and dynamic test in detail. The results showed the added RDX of RDX/TEGDN/NBC composites solutions could destroy the stable structure of the system. Under the external force, RDX/ TEGDN/NBC composite solution exhibit a better fluidity compared with TEGDN/NBC composite solution. And with the RDX increase, the viscosities of the solution systems decreased first and then increased, reached their minmum values when the RDX content was 15 wt%.

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Section: Tg-dsc Analysismentioning

confidence: 99%

Development rheological and thermal properties of a novel propellant RDX/TEGDN/NBC

Xiaorui

Luo

Zhu³

et al. 2020

SN Appl. Sci.

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“…On the basis of our previous studies using the impedance spectroscopy method, [45][46][47] we tried to find another more accurate relationship between the effectiveness constant (∈) and sisal fiber content. From electrical measurement, that is, impedance spectroscopy, the inhibition efficiency IE% can be determined and it is usually used to highlight the effect of the polymer in preventing corrosion.…”

Section: Analysis Of the Reinforcement Efficiency Of Sisal Fibermentioning

confidence: 99%

Elaboration and characterization of biocomposite based on polylactic acid and Moroccan sisal fiber as reinforcement

et al. 2021

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The aim of the current study is to further investigate the impact of the sisal fiber content up to 30% on the mechanical and thermal properties of polylactic acid (PLA) matrix composites following up to our previous study for sisal content up to 15%. The biocomposites were prepared successfully using a twinscrew extruder and an injection molding machine. It was found that 20 m% resulted the best mechanical, dynamic mechanical, and thermal properties among the tested fiber contents. Beyond this weight fraction of sisal, these properties showed a slight decrease probably because of reaching the threshold percolation corresponding to weight fraction limit before the aggregations started to form in the matrix. This finding was supported by scanning electron microscopy. The degree of crystallinity increased until reaching 10% fiber content, but not above. The results reveal that the reinforcement of PLA by sisal fiber does not only improve mechanical properties but also it could be used as a nucleating agent for the PLA. Moreover, a new relationship is proposed to characterize the effectiveness of the composite due to the addition of sisal fiber.The performance of the biocomposites developed makes them capable for applications in various fields such as aeronautics, automotive, and construction. K E Y W O R D Scomposites, mechanical properties, natural fiber, thermal properties, thermoplastics | INTRODUCTIONThe composite materials offer several advantages including lightweight, high strength, corrosion resistance, and design flexibility. [1] The environmental concern has led scientists to focus on a new generation of sustainable composite materials, so-called green composites. The conventional structural composite materials include synthetic fibers as reinforcement (glass fiber, carbon fiber, etc.) and non-biodegradable matrices such as epoxy resin, polyester resin, and so forth. [2] However, the use of petroleum-based composite materials could have an environmental impact (climate change, pollution, greenhouse effect, difficult recycling). The advantages of natural fibers such as low cost, abundance, low density show the potential of these fibers for the replacement of synthetic fibers. [3] Natural

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First derivative, extrapolation, and deconvolution of the complex conductivity data for the identification of the optimum entanglement concentration of polysaccharides in aqueous solutions

Zaim,

Sabir,

Monkade

et al. 2024

Appl. Phys. A

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Effects of calcium oxide on the surface properties of industrial sludge by analyzing rheological and electrical properties

Cited by 11 publications

References 29 publications

Development rheological and thermal properties of a novel propellant RDX/TEGDN/NBC

Development rheological and thermal properties of a novel propellant RDX/TEGDN/NBC

Elaboration and characterization of biocomposite based on polylactic acid and Moroccan sisal fiber as reinforcement

First derivative, extrapolation, and deconvolution of the complex conductivity data for the identification of the optimum entanglement concentration of polysaccharides in aqueous solutions

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