An Attempt to Find a Suitable Biomass for Biochar-Based Polypropylene Biocomposites

Das, Oisik; Kim, Nam Kyeun; Hedenqvist, Mikael S.; Lin, Richard; Sarmah, Ajit K.; Bhattacharyya, Debes

doi:10.1007/s00267-018-1033-6

Cited by 62 publications

(31 citation statements)

References 32 publications

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“…In the field of industry, thermoplastic-based composites are largely used with an annual production of up to 29.5% of the overall production [21]. Several studies have been reported about the production of biochar containing polyethylene [22][23][24] or polypropylene [25][26][27][28] that enhanced the mechanical and thermal properties of the host polymeric matrix. Nonetheless, few research efforts have been devoted to investigate the effect of biochar produced at high temperatures towards the enhancement of polymer conductivity [29].…”

Section: Introductionmentioning

confidence: 99%

Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials

Noori¹,

Bartoli

Frache³

et al. 2020

Micromachines

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In this research paper, we reported the synthesis of biochar-based composites using biochar derived from exhausted tea leaves and polypropylene. The resulting materials were deeply characterized investigating mechanical (dynamic mechanical thermal analysis), thermal (thermogravimetrical analysis and differential scanning calorimetry), morphological (field emission scanning microscopy) and electrical properties vs. temperature. Furthermore, electrical conductivity was studied for a wide range of pressures showing an irreversible plastic deformation. An increment of one order of magnitude in the conductivity was observed in the case of 40 wt% biochar loading, reaching a value of 0.2 S/m. The material produced exhibited the properties of an irreversible pressure sensor.

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Section: Introductionmentioning

confidence: 99%

Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials

Noori¹,

Bartoli

Frache³

et al. 2020

Micromachines

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“…Coffee wastes have been also used as feedstock for pyrolytic conversion producing hydrogen-rich gas [8] and fuel-quality biochar [9]. Biochar has been used not only as solid fuel but also as high performance material [10,11], as a flame retardant additive [12,13], for electrochemical [14] and energy storage applications [15] and for production of composites [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Development of Coffee Biochar Filler for the Production of Electrical Conductive Reinforced Plastic

Giorcelli

Bartoli

2019

Polymers

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In this work we focused our attention on an innovative use of food residual biomasses. In particular, we produced biochar from coffee waste and used it as filler in epoxy resin composites with the aim to increase their electrical properties. Electrical conductivity was studied for the biochar and biochar-based composite in function of pressure applied. The results obtained were compared with carbon black and carbon black composites. We demonstrated that, even if the coffee biochar had less conductivity compared with carbon black in powder form, it created composites with better conductivity in comparison with carbon black composites. In addition, composite mechanical properties were tested and they generally improved with respect to neat epoxy resin.

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“…In addition to this, limited recyclability and non-biodegradability of carbon fibre have become a growing concern when disposing of waste end of life products. Studies carried out by Das et al [32] highlighted that wood and biochar biocomposites exhibited highest mechanical properties (tensile and flexural) and improved fire resistant behaviour when compared to other waste biomasses. Additionally, hybridisation was used to improve mechanical properties as well as limiting oxygen index of waste-based biochar/wood hybrid composites [33].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Mechanical Properties of Flax-Epoxy Composite with Carbon Fibre Hybridisation for Lightweight Applications

Dhakal

Sain

2019

Materials

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The effect of unidirectional (UD) carbon fibre hybridisation on the tensile properties of flax fibre epoxy composite was investigated. Composites containing different fibre ply orientations were fabricated using vacuum infusion with a symmetrical ply structure of 0/+45/−45/90/90/−45/+45/0. Tensile tests were performed to characterise the tensile performance of plain flax/epoxy, carbon/flax/epoxy, and plain carbon/epoxy composite laminates. The experimental results showed that the carbon/flax fibre hybrid system exhibited significantly improved tensile properties over plain flax fibre composites, increasing the tensile strength from 68.12 MPa for plain flax/epoxy composite to 517.66 MPa (670% increase) and tensile modulus from 4.67 GPa for flax/epoxy to 18.91 GPa (305% increase) for carbon/flax hybrid composite. The failure mechanism was characterised by examining the fractured surfaces of tensile tested specimens using environmental scanning electron microscopy (E-SEM). It was evidenced that interactions between hybrid ply interfaces and strain to failure of the reinforcing fibres were the critical factors for governing tensile properties and failure modes of hybrid composites.

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An Attempt to Find a Suitable Biomass for Biochar-Based Polypropylene Biocomposites

Cited by 62 publications

References 32 publications

Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials

Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials

Development of Coffee Biochar Filler for the Production of Electrical Conductive Reinforced Plastic

Enhancement of Mechanical Properties of Flax-Epoxy Composite with Carbon Fibre Hybridisation for Lightweight Applications

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