Electroless nickel – phosphorus coating on crab shell particles and its characterization

Arulvel, S.; Elayaperumal, A.; Jagatheeshwaran, M.S.

doi:10.1016/j.jssc.2017.02.001

Cited by 28 publications

(11 citation statements)

References 35 publications

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“…Upon the chemical treatment of deproteination, these proteins that act as polymer matrix get removed and, thus, the adhesion level of the resin increases. This is in good agreement with the literature findings that treated crab shell filler could be used for Ni-Phosphorus coating due to its better adhesion properties [26]. The translucent layer of chitin was present beneath the protein layer.…”

Section: Tensile Properties Of the Developed Compositessupporting

confidence: 92%

Investigation on thermo-mechanical characteristics of treated/untreated Portunus sanguinolentus shell powder-based jute fabrics reinforced epoxy composites

Kumaran

Mohanamurugan

Madhu

et al. 2019

Journal of Industrial Textiles

144

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The current study deals with the effective usage of Portunus sanguinolentus shell, which is a solid waste in the seafood industry. This Portunus sanguinolentus shell waste was powdered and used as untreated fillers in jute fabrics reinforced epoxy composites. Then Portunus sanguinolentus shell waste powder was treated with chemicals to perform fat removal, deproteination, decarbonization and deacetylation to obtain treated Portunus sanguinolentus shell filler. Three different composites were developed with traditional hand layup process consisting of four layers jute fabrics that were filled with 10 wt% untreated Portunus sanguinolentus shell filler, chemical treated 10 wt% Portunus sanguinolentus shell filler and unfilled one. The thermo-mechanical and fracture morphologies were assessed by tensile, flexural, compression, shear, impact, hardness thermogravimetric analysis, Fourier-transform infrared spectroscopy and scanning electron microscopy analysis. The results showed an increase in the thermo-mechanical property of chemical-treated Portunus sanguinolentus shell powder-filled jute fabrics-based epoxy composite. This phenomenon is due to the increase in the chitosan, mineral contents and decrease in the organic content in the Portunus sanguinolentus shell powder due to chemical treatment, thus enhancing the bonding between the filler and fiber matrix with reduction of the void. A showcase stand was developed with the best performer, as an attempt in the perfection of application. The application is then analyzed using ANSYS to predict the deformation behavior when subjected to 0.25 kg, 0.5 kg and 1 kg loads.

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Section: Tensile Properties Of the Developed Compositessupporting

confidence: 92%

Investigation on thermo-mechanical characteristics of treated/untreated Portunus sanguinolentus shell powder-based jute fabrics reinforced epoxy composites

Kumaran

Mohanamurugan

Madhu

et al. 2019

Journal of Industrial Textiles

144

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“…chitin/chitosan polymer and a crystalline phase, which was identified as calcite (Swanson et al 1953;Zhou et al 2016;Cai et al 2019). The broad diffraction peaks observed at around 9.6°and 19°in the raw material (representing the amorphous chitin structure) are found to sharpen after activation, suggesting the material has crystallised during the activation process (Arulvel et al 2017). These peaks were related to semi-crystal-I and semicrystal-II in the chitosan structure (Arulvel et al 2016).…”

Section: Xrpdmentioning

confidence: 99%

Synthesis optimisation and characterisation of chitosan-calcite adsorbent from fishery-food waste for phosphorus removal

Pap

Kirk

Sekulić

et al. 2020

Environ Sci Pollut Res

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Here, Box-Behnken design (BBD) approaches were utilised to optimise synthesis methodology for the chitosan-calcite rich adsorbent (CCM) made from fishery-food waste material (crab carapace), using low-temperature activation and potassium hydroxide (KOH). The effect of activation temperature, activation time and impregnation ratio was studied. The final adsorbent material was evaluated for its phosphorus (P) removal efficiency from liquid phase. Results showed that impregnation ratio was the most significant individual factor as this acted to increase surface deacetylation of the chitin (to chitosan) and increased the number of amine groups (-NH 2 ) in the chitosan chain. P removal efficiency approached 75.89% (at initial P concentration of 20 mg/L) under optimised experimental conditions, i.e. where the impregnation ratio for KOH:carapace (g/g) was 1:1, the activation temperature was 105°C and the activation time was 150 min. Predicted responses were in good agreement with the experimental data. Additionally, the pristine and CCM material were further analysed using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX), Brunauer-Emmett-Teller technique (BET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and thermal gravimetric analysis (TGA). Characterisation showed enhancements in surface chemistry (introducing positively charged amine groups), textural properties and thermal stability of the CCM.

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“…Thus, a solution to improve the ferrite‐polymer interface is a chemical modification on the surface of the particles [17] . That is accomplished through a chemical reaction that functionalizes the ferrite particle surface with chemical groups with better affinity or stability with the chosen polymer [18] . Silanization is a very popular functionalization because silicon has good compatibility with the polymer‘s carbon chain and still chemically reacts with the surface of metallic oxides and other materials that usually present hydroxyl groups [19] .…”

Section: Introductionmentioning

confidence: 99%

“…[17] That is accomplished through a chemical reaction that functionalizes the ferrite particle surface with chemical groups with better affinity or stability with the chosen polymer. [18] Silanization is a very popular functionalization because silicon has good compatibility with the polymer's carbon chain and still chemically reacts with the surface of metallic oxides and other materials that usually present hydroxyl groups. [19] In other words, they are simple and relatively inexpensive reactions that significantly improve the interface interactions and even help to stabilize the composite's performance over long periods, as is a classic example of improving the fatigue property.…”

Section: Introductionmentioning

confidence: 99%

Thermal, Magnetic and Electrical Properties of PMMA Nanocomposites with Manganese and Zinc Ferrite Nanoparticles and Their Functionalization

Marques

2022

ChemistrySelect

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Manganese (MnFe 2 O 4 ) and zinc (ZnFe 2 O 4 ) ferrite nanoparticles were synthesized by the combustion method. Furthermore, the modification of these particles with a silane compound was performed. Thus, the particles produced were analyzed for morphology using Scanning electron microscopy (SEM), thermal stability, and composition assisted by Thermogravimetric analysis (TGA). It is noteworthy that the present work used an unprecedented Far-Fourier-transform infrared spectroscopy (Far-FTIR) technique to differentiate the types of ferrites and their surface functionalization, as it is a simpler, more efficient, and high-resolution method. It is worth mentioning that there are few comparative studies of zinc and manganese ferrites in the literature, much less distinguishing these ferrites simply and efficiently. In addition, there is also a lack of scientific knowledge about its chemical functionalization as compatibilization, especially silanization. Novel PMMA nanocomposites were prepared with the different synthesized particles in the contents from 0.1 % to 1.0 wt.% by the in situ polymerization technique. The nanocomposites were characterized by the analysis of SEM, TGA, Differential scanning calorimetry (DSC), and FTIR mainly by their morphology, thermal resistance, glass transition temperature, proving the chemical interactions, electrical conductivity, capacitance, and dielectric constant. Furthermore, it was evidenced that, in addition to the improvements in thermal, electrical, and interface properties, the produced nanocomposites showed excellent electromagnetic shielding properties even at low filler contents. It is noteworthy that the capacitance increases 63 % for the composite with 1.0 % zinc ferrite and 43 % for manganese ferrite. Also, the electromagnetic absorption results proved that even the low filler contents tested in this work, up to 1.0 %, presented an excellent potential for applying as electromagnetic shielding materials, reaching up to 70 % attenuation with the use of zinc ferrite. Both ferrites showed excellent results, even superior to those found in the literature for other particles with the same purposes, and still needed a lower content to achieve excellent results.

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Electroless nickel – phosphorus coating on crab shell particles and its characterization

Cited by 28 publications

References 35 publications

Investigation on thermo-mechanical characteristics of treated/untreated Portunus sanguinolentus shell powder-based jute fabrics reinforced epoxy composites

Investigation on thermo-mechanical characteristics of treated/untreated Portunus sanguinolentus shell powder-based jute fabrics reinforced epoxy composites

Synthesis optimisation and characterisation of chitosan-calcite adsorbent from fishery-food waste for phosphorus removal

Thermal, Magnetic and Electrical Properties of PMMA Nanocomposites with Manganese and Zinc Ferrite Nanoparticles and Their Functionalization

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