Fabrication and characterization of biodegradable active films with modified morphology based on polycaprolactone-polylactic acid-green tea extract

Sadeghi, Azadeh; Razavi, Seyed Mohammad Ali; Shaharampour, Dina

doi:10.1016/j.ijbiomac.2022.02.070

Cited by 51 publications

(14 citation statements)

References 51 publications

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“…18 A sustainable packaging material was created using PLA as the matrix and polycaprolactone as the reinforcing material, enhanced with tea extract to introduce antioxidant properties. 15 Incorporating polycaprolactone in PLA reduced water solubility by 38.89% while improving antioxidant properties, with acceptable hydrophilicity (14.96%), oxygen transmission rate (35.55%), and water vapor permeability (8.75%). The sustainable composite packaging material developed by Chin et al, 16 using powdered bamboo plant fiber as reinforcement, silica aerogel as a plasticizer, and PLA as the matrix, exhibited superior cytocompatibility over other materials.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous applications have been identified for PLA matrix‐dependent eco‐friendly reinforcement material‐based green composites 18 . A sustainable packaging material was created using PLA as the matrix and polycaprolactone as the reinforcing material, enhanced with tea extract to introduce antioxidant properties 15 . Incorporating polycaprolactone in PLA reduced water solubility by 38.89% while improving antioxidant properties, with acceptable hydrophilicity (14.96%), oxygen transmission rate (35.55%), and water vapor permeability (8.75%).…”

Section: Introductionmentioning

confidence: 99%

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Feasibility study on thermo‐mechanical performance of 3D printed and annealed coir fiber powder/polylactic acid eco‐friendly biocomposites

Bright,

Binoj,

Hassan

et al. 2024

Polymer Composites

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The enhancement of the mechanical and thermal characteristics of 3D printed polylactic acid (PLA) composites reinforced by coir fiber powder (CFP) has been investigated by varying the weight percentage (wt%) of the reinforcement and annealing process. CFP/PLA composite filaments with CFP compositions of 0.1, 0.3, and 0.5 wt% were fabricated. These filaments were used to print CFP/PLA test specimens. The specimens were annealed at 90°C for 120 min in a hot air oven followed by cooling at room temperature. Mechanical, morphological, crystalline, and thermal characterizations were conducted on these specimens. The tensile and flexural strength of neat PLA were observed as 49.7 and 82.4 MPa which decreased by 6.4% and 8.13% respectively for printed composite specimens with 0.5 wt% CFP as reinforcement material. On the other hand, the annealed CFP/PLA composite specimen, with 0.1 wt% CFP as a reinforcement material, demonstrated higher tensile and flexural strength. Specifically, it exhibited a maximum tensile strength of 56.4 MPa and a maximum flexural strength of 92.9 MPa, which are 13.5% and 12.7% higher, respectively, than neat PLA. These strengths are 15.5% and 16.7% higher, respectively, than those of the unannealed CFP/PLA composite specimen with the same wt% of CFP reinforcement. The annealing process increased the crystallinity of composites by enhancing the crystallinity index (63%) and crystalline size (6.7 nm). The high thermal stability of composites (with a glass transition temperature of 256°C) makes them suitable for applications in food and medical packaging.Highlights Enhancement of thermo‐mechanical characteristics of 3D printed bio‐composites. Annealing process improved mechanical features of 3D printed bio‐composites. Annealed composite with 0.1 wt% as reinforcement demonstrated better properties. SEM and XRD studies confirmed failure mechanisms and crystalline structure. Thermal and mechanical assets favor its utilization in food wrapping applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Feasibility study on thermo‐mechanical performance of 3D printed and annealed coir fiber powder/polylactic acid eco‐friendly biocomposites

Bright,

Binoj,

Hassan

et al. 2024

Polymer Composites

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show abstract

“…Azadeh et al [ 17 ] developed a biodegradable and food grade packaging material with antioxidant properties from green materials PLA, polycaprolactone and green tea extract. This combination of developed green packaging material had 38.89% lesser water‐solubility, 14.96% lesser hydrophilicity, 35.55% lesser oxygen transition rate and 8.75% lesser water vapor permeability with enhanced mechanical and antioxidant properties.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive characterization of raw and treated pineapple leaf fiber/polylactic acid green composites manufactured by 3D printing technique

Mansingh¹,

Binoj

Tan

et al. 2022

Polymer Composites

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The aim of this study is to develop a completely sustainable, biodegradable, eco-friendly and green composite material for packaging of food and medical products by an additive manufacturing technique such as 3D printing. This report presents the mechanical, crystalline, chemical bonding and thermal characteristics of a novel pineapple leaf fiber (PALF) reinforcing polylactic acid (PLA) green composite manufactured by 3D printing technique. Both powdered raw and alkali-treated PALFs were respectively mixed with PLA and extruded as filaments for 3D printing into composite test specimens. The characterization study reveals that the 3D printed composite with 3 wt% (alkalitreated) PALF reinforcement exhibited maximum tensile and flexural characteristics. The density of the 3D printed composite specimens increased with increase in wt% of PALF. On the other hand, the 3D printed composite specimens blended with raw PALF showed enhanced elongation at break compared to alkali-treated PALF reinforced composite specimens. The microstructural images of the 3D printed composite specimens confirms the existence of impurities, voids and fiber degradation phenomenon. The Fourier transform infrared spectra revealed the chemical bonding nature of the 3D printed composite specimens. The X-Ray diffraction was used to calculate the crystalline size and crystallinity index. Thermogravimetric analysis reveals that the 3D printed composite specimen possessed adequate thermal stability for use in packaging applications.

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“…The most-used materials in the production of bio-based films and thin membranes are biopolymers extracted from biomass, such as proteins (e.g., whey protein, gluten, gelatin, zein, and legume seed proteins) [9] and polysaccharides (e.g., chitosan, alginate, pectin, glucomannans, cellulose, starch, pullulan, and carrageenan) [10][11][12][13], as well as compostable polymers such as polycaprolactone and polylactic acid [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterisation of Arabinoxylan-Based Composite Films

et al. 2022

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In the last decades, the overuse of synthetic polymers in the packaging industry has become a serious global environmental problem due to their nonbiodegradability. To overcome this issue, attention has been driven to study alternative materials, namely the use of biodegradable biopolymers extracted from agro-industrial residues, as materials for food packages. In this work, the polysaccharide arabinoxylan, previously extracted from corn fibre by alkaline hydrolysis, was used to produce composite and multilayer films. The composite films were produced by casting an oil-in-water emulsion with different quantities of oleic acid, while the multilayer films (beeswax-arabinoxylan-beeswax) were manufactured by submerging the arabinoxylan films in a beeswax solution. Both film types, along with a film composed only of arabinoxylan, were characterised in terms of their antioxidant activity, optical and mechanical properties, surface hydrophobicity, and barrier properties against water vapour (WVP), gases, and ultraviolet-visible (UV-vis) radiation. All the films developed were soluble in water. The multilayer films were more advantageous than the emulsion-based ones due to their enhanced barrier properties against water vapour (WVP = 0.58 × 10−11 mol/m∙s∙Pa), oxygen (with a permeability of 3.28 × 10−12 mol.m−1.s−1.Pa−1) and UV-vis radiation and higher values of water contact angle (92.43°), tensile stress (4.11 MPa), and Young’s modulus (15.96 MPa). The films developed, especially the multilayer ones, showed a good potential to produce flexible packages for low-water-content food products (e.g., several types of nuts).

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Fabrication and characterization of biodegradable active films with modified morphology based on polycaprolactone-polylactic acid-green tea extract

Cited by 51 publications

References 51 publications

Feasibility study on thermo‐mechanical performance of 3D printed and annealed coir fiber powder/polylactic acid eco‐friendly biocomposites

Feasibility study on thermo‐mechanical performance of 3D printed and annealed coir fiber powder/polylactic acid eco‐friendly biocomposites

Comprehensive characterization of raw and treated pineapple leaf fiber/polylactic acid green composites manufactured by 3D printing technique

Development and Characterisation of Arabinoxylan-Based Composite Films

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