An all-gluten biocomposite: Comparisons with carbon black and pine char composites

Das, Oisik; Hedenqvist, Mikael S.; Johansson, Eva; Olsson, Richard T.; Loho, Thomas; Capezza, Antonio José; Raman, R.K. Singh; Holder, Shima L.

doi:10.1016/j.compositesa.2019.02.015

Cited by 46 publications

(33 citation statements)

References 36 publications

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“…The strong peak detected at 1027 cm −1 (Figure 5a) corresponds to 25 wt% glycerol contained within the composite samples [26]. Due to the absence of functional groups in CB, no new peaks appear in FT-IR spectra when combined with the gluten matrices [16]. The overall shape of the amide I region for the different composite samples (Figure 5b), was reported to be associated with conformational structures of proteins [27].…”

Section: Ft-ir Analysismentioning

confidence: 93%

“…In recent years, carbon-based materials have been employed as reinforcing fillers in biocomposites [11][12][13][14][15] due to their porous nature, high inherent hardness/modulus, and fire resistance. In particular, carbonaceous biochars were added to WG to create fully bio-based composites [16]. The biochars enabled an increase in both mechanical properties and water resistance of WG polymer.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, carbon-based fillers promote the stiffness or rigidity of resulting composites due to their high inherent modulus. The modulus of pine-based biochars via nanoindentation was reported to be 4.6 GPa as opposed to only 0.16 GPa for neat WG [16]. Carbon-based fillers can thus provide the resistance to reduce the deformability of surrounding matrices, thus increasing the elastic modulus of the entire composite system [15].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Carbon Black on the Properties of Plasticised Wheat Gluten Biopolymer

et al. 2020

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Wheat gluten biopolymers generally become excessively rigid when processed without plasticisers, while the use of plasticisers, on the other hand, can deteriorate their mechanical properties. As such, this study investigated the effect of carbon black (CB) as a filler into glycerol-plasticised gluten to prepare gluten/CB biocomposites in order to eliminate the aforementioned drawback. Thus, biocomposites were manufactured using compression moulding followed by the determination of their mechanical, morphological, and chemical properties. The filler content of 4 wt% was found to be optimal for achieving increased tensile strength by 24%, and tensile modulus by 268% along with the toughness retention based on energy at break when compared with those of glycerol-plasticised gluten. When reaching the filler content up to 6 wt%, the tensile properties were found to be worsened, which can be ascribed to excessive agglomeration of carbon black at the high content levels within gluten matrices. Based on infrared spectroscopy, the results demonstrate an increased amount of β-sheets, suggesting the formation of more aggregated protein networks induced by increasing the filler contents. However, the addition of fillers did not improve fire and water resistance in such bionanocomposites owing to the high blend ratio of plasticiser to gluten.

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Section: Ft-ir Analysismentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effect of Carbon Black on the Properties of Plasticised Wheat Gluten Biopolymer

et al. 2020

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“…Recently, biochar was used for the realisation of biopolymer composites based on polysaccharides such as cellulose [86], starch [87] or gluten [88] under the vision of blue and green economy for a total bio-and sustainable productive line.…”

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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“…Recently, biochar has been used for the production of biopolymer (i.e., starch [324] and gluten [325]) composites, thus fulfilling the vision of total bio and sustainable production.…”

Section: Biochar-containing Reinforced Plasticsmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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An all-gluten biocomposite: Comparisons with carbon black and pine char composites

Cited by 46 publications

References 36 publications

The Effect of Carbon Black on the Properties of Plasticised Wheat Gluten Biopolymer

The Effect of Carbon Black on the Properties of Plasticised Wheat Gluten Biopolymer

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

A Review of Non-Soil Biochar Applications

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