Low-Cost Carbon Fillers to Improve Mechanical Properties and Conductivity of Epoxy Composites

Khan, Abdul Wasay; Savi, Patrizia; Quaranta, Simone; Rovere, Massimo; Giorcelli, Mauro; Tagliaferro, Alberto; Rosso, Carlo; Jia, Charles Q.

doi:10.3390/polym9120642

Cited by 90 publications

(75 citation statements)

References 43 publications

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“…The beneficial effects of biochar addition to epoxy composites have reported by many studies . Giorcelli et al . reported the use of high thermal treated biochar for the production of conductive epoxy composite while other studies reported the improvement of mechanical properties of biochar containing reinforced plastics .…”

Section: Introductionmentioning

confidence: 99%

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Effect of incorporation of microstructured carbonized cellulose on surface and mechanical properties of epoxy composites

Bartoli

Rosso

Giorcelli

et al. 2019

J of Applied Polymer Sci

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In this study, we reported the use of cellulose derived microstructured biochars for the production of reinforced plastics. Cellulose nanocrystals and wasted cotton fibers were used as cellulose template structures and converted into carbonaceous materials under pyrolytic conditions. Biochars particles were produced with the shape of deformed spheres or rods and dispersed into an epoxy matrix with a loading ranging from 1 wt % to 10 wt %. Biochar-based composites showed remarkably elongation properties of up to 8.2% using 2 wt % of carbonized cellulose nanocrystals and a very low friction coefficient of 0.22 using 10 wt % of carbonized cotton fibers. © 2019Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48896. HIGHLIGHTS:• Carbon spheres and carbon rods were produced through pyrolytic conversion of cellulose nanocrystals and wasted cotton fibers.• Mechanical properties of carbon spheres and carbon rods epoxy composites were studied showing the differences induced by the particle shapes. • An ultimate tensile strength improvement of 57% was reached using 5 wt % of carbonized cellulose nanocrystals.• A maximum elongation improvement of 100% was reached using 2 wt % of carbonized cellulose nanocrystals.• A friction coefficient reduction of 61% was reached using 10 wt % of carbonized cotton fibers.

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Section: Introductionmentioning

confidence: 99%

“…Giorcelli et al . reported the use of high thermal treated biochar for the production of conductive epoxy composite while other studies reported the improvement of mechanical properties of biochar containing reinforced plastics . Recently, Bartoli et al .…”

Section: Introductionmentioning

confidence: 99%

Effect of incorporation of microstructured carbonized cellulose on surface and mechanical properties of epoxy composites

Bartoli

Rosso

Giorcelli

et al. 2019

J of Applied Polymer Sci

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“…In the field of composites (see, e.g., [18][19][20]), sludge derived biochar has been used for the production of concrete- [18] and poly(ethylene)-based composites [21] to enhance the polymer hosts' mechanical and thermal properties. The electrical properties of biochar derived from vegetation were reported in [22][23][24]. Accordingly, in this study, we report the electrical and morphological characterization of sludge derived biochar.…”

Section: Introductionmentioning

confidence: 88%

Electrical and Microwave Characterization of Thermal Annealed Sewage Sludge Derived Biochar Composites

et al. 2020

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Ever-increasing proportions of sewage sludge are being generated due to increases in population and urbanization. As a result, the disposal of sewage sludge for use as manure and for other agricultural applications is not sufficient. The use of biochar derived from sewage sludge as a substitute to other carbon fillers was analyzed by performing electrical and morphological characterization. The electrical and microwave characterization of composites filled with sludge biochar was performed. Thermal annealing of biochar makes it conductive and suitable for a variety of electrical and microwave applications. Composite samples of a thickness of 4 mm with 20 wt.% of sludge biochar provided a shielding effectiveness value of almost 10 dB.

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“…Consequently, the replacement of carbon fibres and carbon black, carbon soot and anthracites with biochar has gained a great interest. Khan et al [57] described the mechanical and dielectric properties of high-temperature-annealed maple-derived biochar dispersed into a two-component epoxy resin. Biochar filler was used in concentration ranging from 0.5 wt.% to 20 wt.%.…”

Section: Fillersmentioning

confidence: 99%

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

Bartoli¹,

Giorcelli²,

Jagdale³

et al. 2021

Fillers

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The global market of carbon-reinforced plastic represents one of the largest economic platforms. This sector is dominated by carbon black (CB) produced from traditional oil industry. Recently, high technological fillers such as carbon fibres or nanostructured carbon (i.e. carbon nanotubes, graphene, graphene oxide) fillers have tried to exploit their potential but without economic success. So, in this chapter we are going to analyse the use of an unconventional carbon filler called biochar. Biochar is the solid residue of pyrolysis and can be a solid and sustainable replacement for traditional and expensive fillers. In this chapter, we will provide overview of the last advancement in the use of biochar as filler for the production of reinforced plastics.

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Low-Cost Carbon Fillers to Improve Mechanical Properties and Conductivity of Epoxy Composites

Cited by 90 publications

References 43 publications

Effect of incorporation of microstructured carbonized cellulose on surface and mechanical properties of epoxy composites

Effect of incorporation of microstructured carbonized cellulose on surface and mechanical properties of epoxy composites

Electrical and Microwave Characterization of Thermal Annealed Sewage Sludge Derived Biochar Composites

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

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