Processing methods of bionanocomposites

Akbar, Muhammad Usman; Rehman, Fazal‐ur; Ibrahim, Muhammad; Barikani, Mehdi; Mohammadi, Mohsen; Sobhani, Hadi; Mohammadi, Abbas; Farrukh, Muhammad Akhyar

doi:10.1016/b978-0-12-816751-9.00004-0

Cited by 10 publications

(4 citation statements)

References 107 publications

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“…This technique is mainly used to prepare polymer nanocomposites in the laboratory (Akbar et al, 2020). A suitable solvent is usually employed to dissolve the polymer in which the nanoparticles are uniformly dispersed.…”

Section: Solution Castingmentioning

confidence: 99%

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Trends and challenges of biopolymer‐based nanocomposites in food packaging

Taherimehr

YousefniaPasha

Tabatabaeekoloor

et al. 2021

Comp Rev Food Sci Food Safe

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The ultimate goal of new food packaging technologies, in addition to maintaining the quality and safety of food for the consumer, is to consider environmental concerns and reduce its impacts. In this regard, one of the solutions is to use ecofriendly biopolymers instead of conventional petroleum-based polymers. However, the challenges of using biopolymers in the food packaging industry should be carefully evaluated, and techniques to eliminate or minimize their disadvantages should be investigated. Many studies have been conducted to improve the properties of biopolymer-based packaging materials to produce a favorable product for the food industry. This article reviews the structure of biopolymer-based materials and discusses the trends and challenges of using these materials in food packaging technologies with the focus on nanotechnology and based on recent studies.

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Section: Solution Castingmentioning

confidence: 99%

“…This method has been reported for the fabrication of scaffolds, artificial organ compounds, body implants, tissue engineering, and drug delivery carriers from bionanocomposites (Akbar et al, 2020). A syringe needle loaded with the polymer solution is used as a spinneret.…”

Section: Electrospinningmentioning

confidence: 99%

Trends and challenges of biopolymer‐based nanocomposites in food packaging

Taherimehr

YousefniaPasha

Tabatabaeekoloor

et al. 2021

Comp Rev Food Sci Food Safe

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“…Nowadays, the amount of use of polymers has surpassed other materials due to their light weight, corrosion resistance, accessibility, and easy processability 1 , 2 . Nevertheless, polymers also have limitations, such as low mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

EVA and SEBS-MA copolymers incorporated silicone rubber/SEBS blends: improvement of mechanical and thermal properties

Alikhani,

Mohammadi

2023

Sci Rep

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Enhancing the mechanical and thermal properties of Silicone rubber (SR)/SEBS blends using various compatibilizers opens the opportunity for such new blends to meet the market desire. For this purpose, blends with a 1:1 ratio of SR and SEBS are prepared with different amounts of EVA or SEBS-MA copolymers as compatibilizer. Mechanical properties of the blend are enhanced by adding EVA and SEBS-MA. Addition of 6 phr EVA profoundly improves the tensile strength from 7.70 to 10.06 MPa. Thermogravimetric analysis reveals that the presence of compatibilizer can improve the thermal stability of the blend, especially its initial degradation temperature (T5%). T5% of the blend increases from 376 to 390 °C when comprising 6 phr SEBS-MA. Morphology of the blends is investigated using SEM and AFM. Results of the relaxation modulus curves obtained by rubber process analyzer (RPA) demonstrate that the amount of relaxation in the uncured blends is higher than the cured ones. A comparison of the relaxation of the blends indicates that the relaxation modulus of the SEBS-MA compatibilized blends is enhanced more than other blends after curing. Further investigations indicate that the compatibilized blends exhibit higher tear energy and lower compression set.

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“…The preparation and processing of bionanocomposites are critical stages because they define their properties and behaviors [22,31]. Several strategies have been reported for building products made of bionanocomposites, including filament winding, electrospinning, solution casting, 3D printing, extrusion, injection, or compression molding [32]. In particular, injection or compression molding are some of the most extended industrial processing setups.…”

Section: Introductionmentioning

confidence: 99%

Structure–Properties Relationship of Reprocessed Bionanocomposites of Plasticized Polylactide Reinforced with Nanofibrillated Cellulose

et al. 2022

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Bionanocomposites of polylactide (PLA), plasticized with poly(ethylene glycol) (PEG) (7.5 wt%, 400 and 1500 g/mol) and reinforced with nanofibrillated cellulose (NFC) (1, 3, and 5 wt%) were sequentially compounded, and injection and compression molded. All of the stages caused structural and morphological consequences, more relevant in the plasticized PLA, especially with low molar PEG. Small percentages of NFC (1 and 3 wt%) acted as crystalline nucleating agents and improved thermo-oxidative stability. Given the substantial degradation caused by (re)processing, a downgrading validation strategy was applied, assessing the mechanical and water contact performance during fictional first and second service life applications. After the first processing, PEG increased the ductility and reduced the strength and elastic modulus, while NFC buffered the fall in stiffness and increased rigidity compared to their PLA-PEG counterparts. Once reprocessed, PEG increased the water affinity of the blend, especially for low molar mass PEG. Low percentages of NFC (1 and 3 wt%) modulated water diffusivity and permeability, regardless of the water temperature. Overall, although reprocessing caused significant degradation, the mechanical valorization possibilities of these green bionanocomposites were proven, and are pointed out as sustainable candidates for food packaging or agricultural applications where modulated mechanical or water contact behaviors are required.

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Processing methods of bionanocomposites

Cited by 10 publications

References 107 publications

Trends and challenges of biopolymer‐based nanocomposites in food packaging

Trends and challenges of biopolymer‐based nanocomposites in food packaging

EVA and SEBS-MA copolymers incorporated silicone rubber/SEBS blends: improvement of mechanical and thermal properties

Structure–Properties Relationship of Reprocessed Bionanocomposites of Plasticized Polylactide Reinforced with Nanofibrillated Cellulose

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