Bio-based and biodegradable polymers - State-of-the-art, challenges and emerging trends

Rameshkumar, Saranya; Shaiju, P.; O’Connor, Kevin E.; P, Ramesh Babu

doi:10.1016/j.cogsc.2019.12.005

Cited by 338 publications

(163 citation statements)

References 37 publications

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“…Most commercial plastic packaging is currently made of non-biodegradable polymers derived from petroleum that is currently causing disposal problems and leakage into the oceans [1]. To solve these environmental issues, recent studies have been directed towards the development osf food packaging materials based on biopolymers that have the two-fold environmental advantage of being bio-based, that is, obtained from renewable resources, and biodegradable, that is, disintegrable in controlled compost soil due to their potentially hydrolysable ester bonds [2]. Among them, polylactide (PLA) is nowadays considered the front-runner in the emerging bioplastics market, showing an annual consumption of 140,000 tons within a bioplastics market that is growing by 20-30% each year [3].…”

Section: Introductionmentioning

confidence: 99%

Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes

et al. 2020

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In this work, films of polylactide (PLA) prepared by extrusion and thermo-compression were plasticized with oligomer of lactic acid (OLA) at contents of 5, 10, and 20 wt%. The PLA sample containing 20 wt% of OLA was also reinforced with 3, 6, and 9 parts per hundred resin (phr) of halloysite nanotubes (HNTs) to increase the mechanical strength and thermal stability of the films. Prior to melt mixing, ultrasound-assisted dispersion of the nanoclays in OLA was carried out at 100 • C to promote the HNTs dispersion in PLA and the resultant films were characterized with the aim to ascertain their potential in food packaging. It was observed that either the individual addition of OLA or combined with 3 phr of HNTs did not significantly affect the optical properties of the PLA films, whereas higher nanoclay contents reduced lightness and induced certain green and blue tonalities. The addition of 20 wt% of OLA increased ductility of the PLA film by nearly 75% and also decreased the glass transition temperature (T g ) by over 18 • C. The incorporation of 3 phr of HNTs into the OLA-containing PLA films delayed thermal degradation by 7 • C and additionally reduced the permeabilities to water and limonene vapors by approximately 8% and 47%, respectively. Interestingly, the highest barrier performance was attained for the unfilled PLA film plasticized with 10 wt% of OLA, which was attributed to a crystallinity increase and an effect of "antiplasticization". However, loadings of 6 and 9 phr of HNTs resulted in the formation of small aggregates that impaired the performance of the blend films. The here-attained results demonstrates that the properties of ternary systems of PLA/OLA/HNTs can be tuned when the plasticizer and nanofiller contents are carefully chosen and the resultant nanocomposite films can be proposed as a bio-sourced alternative for compostable packaging applications.

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Section: Introductionmentioning

confidence: 99%

Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes

et al. 2020

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“…Biodegradable biopolymers have been gaining societal, scientific, industrial, and economic importance to develop sustainable food packaging bioplastics, alternatives to conventional non-biodegradable fossil-fuel-based plastics [ 6 , 13 ]. In recent years, several approaches to develop biodegradable plastic materials from biomass feedstock by biocatalytic transformation, chemical synthesis, or simple feedstock polymers’ extraction have received much attention, taking advantage of using renewable resources as raw materials during polymer production/purification.…”

Section: Biopolymers As Food Packaging Raw Materialsmentioning

confidence: 99%

“…In recent years, several approaches to develop biodegradable plastic materials from biomass feedstock by biocatalytic transformation, chemical synthesis, or simple feedstock polymers’ extraction have received much attention, taking advantage of using renewable resources as raw materials during polymer production/purification. This strategy contributes to a sustainable essence of the final packaging while advancing toward a circular economy [ 6 ]. According to nova-Institute data [ 4 ], simultaneous bio-based and biodegradable polymers had a 33% increase in applications within the plastic packaging industry between 2017 and 2019, particularly dominated by starch-based blends, polylactic acid (PLA), and polyhydroxyalkanoates (PHA) polymers ( Figure 1 ).…”

Section: Biopolymers As Food Packaging Raw Materialsmentioning

confidence: 99%

“…US$ 225 billion in 2018 to over US$ 310 billion by 2024 [ 5 ]. The high cost and difficulty to overcome specific technical issues (e.g., viscosity, thermal stability, hydrophilicity, low mechanical strength, and poor gas barrier properties), essential to preserve food quality and safety, are the main obstacles for their large-scale use [ 6 ]. Investments in research have been enforced to develop biodegradable food packaging materials, fitting practical criteria.…”

Section: Introductionmentioning

confidence: 99%

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Graphene Derivatives in Biopolymer-Based Composites for Food Packaging Applications

et al. 2020

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This review aims to showcase the current use of graphene derivatives, graphene-based nanomaterials in particular, in biopolymer-based composites for food packaging applications. A brief introduction regarding the valuable attributes of available and emergent bioplastic materials is made so that their contributions to the packaging field can be understood. Furthermore, their drawbacks are also disclosed to highlight the benefits that graphene derivatives can bring to bio-based formulations, from physicochemical to mechanical, barrier, and functional properties as antioxidant activity or electrical conductivity. The reported improvements in biopolymer-based composites carried out by graphene derivatives in the last three years are discussed, pointing to their potential for innovative food packaging applications such as electrically conductive food packaging.

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“…It can be proven that blending PEF with PLA or PHA may evolve better biodegradable properties capable of delivering packaging applications. The modification of biodegradable materials to enhance their functionality brings to fore research deficits capable of compromising the composition and compatibilization of various biodegradable polymers where their performance efficiency and versatility is eroded [44].…”

Section: Reclamations Of Biodegradable Materials and The Technologicamentioning

confidence: 99%

Bio-based and Biodegradable Plastic Materials: Life Cycle Assessment

Adekomaya

Majozi

Adedoyin

2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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The involvement of bio-based and biodegradable materials in material formations is meant to foster cradle-to-grave life cycle assessment (LCA) with minimal or zero impact on the environment. Life cycle assessment of bio-based materials is crucial in the long-term sustainability of materials taking into consideration future reclamation and degradable components of materials. Application of materials in structural and part formation has been expanded to accommodate bio-based and

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Bio-based and biodegradable polymers - State-of-the-art, challenges and emerging trends

Cited by 338 publications

References 37 publications

Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes

Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes

Graphene Derivatives in Biopolymer-Based Composites for Food Packaging Applications

Bio-based and Biodegradable Plastic Materials: Life Cycle Assessment

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