Effect of pH and nanoclay content on the morphology and physicochemical properties of soy protein/montmorillonite nanocomposite obtained by extrusion

Félix, Manuel; Martínez, Inmaculada José Martínez; Romero, Alberto; Partal, P.; Guerrero, Antonio

doi:10.1016/j.compositesb.2017.12.040

Cited by 43 publications

(24 citation statements)

References 33 publications

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“…However, it melts and fluidizes in the presence of a low molecular plasticizer such as water or glycerol, high temperatures and shearing, being suitable for injection moulding, extrusion and blowing facilities, in the same way as synthetic plastics [ 6 ]. Similar to starches, proteins are macromolecules with continuous and cohesive matrices, receiving enormous attention for the production of biodegradable plastic, edible films and sheets [ 7 ]. Plant proteins that can be used for bio-based plastic include soy protein, corn zein, wheat protein, etc.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

et al. 2021

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The high production rate of conventional plastics and their low degradability result in severe environmental problems, such as plastic accumulation and some other related consequences. One alternative to these materials is the production of oil-free bioplastics, based on wastes from the agro-food industry, which are biodegradable. Not only is rice bran an abundant and non-expensive waste, but it is also attractive due to its high protein and starch content, which can be used as macromolecules for bioplastic production. The objective of this work was to develop rice-bran-based bioplastics by injection moulding. For this purpose, this raw material was mixed with a plasticizer (glycerol), analysing the effect of three mould temperatures (100, 130 and 150 °C) on the mechanical and microstructural properties and water absorption capacity of the final matrices. The obtained results show that rice bran is a suitable raw material for the development of bioplastics whose properties are strongly influenced by the processing conditions. Thus, higher temperatures produce stiffer and more resistant materials (Young’s modulus improves from 12 ± 7 MPa to 23 ± 6 and 33 ± 6 MPa when the temperature increases from 100 to 130 and 150 °C, respectively); however, these materials are highly compact and, consequently, their water absorption capacity diminishes. On the other hand, although lower mould temperatures lead to materials with lower mechanical properties, they exhibit a less compact structure, resulting in enhanced water absorption capacity.

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Section: Introductionmentioning

confidence: 99%

“…Plant proteins that can be used for bio-based plastic include soy protein, corn zein, wheat protein, etc. [ 7 , 8 , 9 ]. Animal proteins such as blood meal, gelatin, collagen, keratin, egg protein, … etc., can also be used as feedstocks of such bio-based plastics [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

et al. 2021

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“…To further improve the mechanical and water resistance of soy protein based materials, modification was often adopted, including blending , filler/fiber reinforcing , chemical modification , enzyme modification , etc. Of these methods, blending with other polymers with fine mechanical and water resistance properties could be regarded as the most effective and low cost method.…”

Section: Introductionmentioning

confidence: 99%

Nanoclay incorporation into soy protein/polyvinyl alcohol blends to enhance the mechanical and barrier properties

Guo

Tian

2019

Polymer Composites

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To enhance the mechanical and water barrier properties of soy protein isolate (SPI/)/polyvinyl alcohol (PVA) blends, montmorillonite (MMT), as a layered silicate clay was incorporated and SPI/PVA/MMT composite films were successfully prepared by melt processing in this work. The results showed that the structure of the composites was highly dependent on the MMT content. MMT nanofillers could act as the heterogeneous nucleating agent for PVA, which accelerated the crystallization and increased the size distribution of the crystalline. With the increase of MMT content, the tensile strength and Young's modulus of the composites increased, exhibiting the fine reinforcing effect. Due to the effective restriction of the highly disordered MMT lamellae on the matrix segment, the water sensitivity of the composites decreased and at the same time, the thermal stability improved. The resulting nanocomposite films exhibited wide applications as biodegradable materials, green packaging films, etc. POLYM. COMPOS., 40:3768-3776, 2019. POLYMER COMPOSITES-2019 FIG. 8. The TGA (a) and DTG (b) curves of SPI/PVA/MMT composite films. [Color figure can be viewed at wileyonlinelibrary.com]

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“…29-1499). [39] The copper oxide in CuO/MMT indexed to the monoclinic phase (JCPDS No. 80-1268), which , which ascribed to the crystal planes of (220), (311), (400), (511), and (440) respectively.…”

Section: Resultsmentioning

confidence: 99%

Comparative Study of CuO, Fe₃O₄ and CuFe₂O₄/CuO over Montmorillonite Clay: Green Synthesis, Characterization and Catalytic Activity

Atarod

Safari

2020

ChemistrySelect

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CuO, Fe3O4 and CuFe2O4/CuO over montmorillonite (MMT) clay were prepared with an eco‐friendly manner utilizing aqueous fruit extracts of the Terminalia chebula (T. chebula). FT‐IR and EDS spectra, XRD patterns and FE‐SEM images revealed the growth of nanoparticles on the layers of montmorillonite clay. The catalytic activity of as‐prepared nanocomposites was comparatively evaluated in the synthesis of aminotetrazole derivatives and resulted in the order of CuFe2O4/CuO/MMT>CuO/MMT>Fe3O4/MMT in their activity for the regioselective synthesis of aminotetrazoles. The combination of the acidic character of MMT clay along with the synergistic electronic effect between nanoparticles result in the superior catalytic activity of CuFe2O4/CuO/MMT which showcased the enormous potential of metallic supported nanocomposites in the catalysis field. The magnetic CuFe2O4/CuO/MMT nanocomposite was successfully reused and recovered for several times without consequential abate.

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Effect of pH and nanoclay content on the morphology and physicochemical properties of soy protein/montmorillonite nanocomposite obtained by extrusion

Cited by 43 publications

References 33 publications

Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

Nanoclay incorporation into soy protein/polyvinyl alcohol blends to enhance the mechanical and barrier properties

Comparative Study of CuO, Fe₃O₄ and CuFe₂O₄/CuO over Montmorillonite Clay: Green Synthesis, Characterization and Catalytic Activity

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Effect of pH and nanoclay content on the morphology and physicochemical properties of soy protein/montmorillonite nanocomposite obtained by extrusion

Cited by 43 publications

References 33 publications

Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

Nanoclay incorporation into soy protein/polyvinyl alcohol blends to enhance the mechanical and barrier properties

Comparative Study of CuO, Fe3O4 and CuFe2O4/CuO over Montmorillonite Clay: Green Synthesis, Characterization and Catalytic Activity

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Product

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Comparative Study of CuO, Fe₃O₄ and CuFe₂O₄/CuO over Montmorillonite Clay: Green Synthesis, Characterization and Catalytic Activity