Processability and performance property correlation for LDPE/PA6-based nanocomposite and its monolayer blown film for packaging application

Purkayastha, Srijita; Dutta, Anindya; Ghosh, Anup K.; Saha, Narayan Chandra

doi:10.1007/s12034-021-02627-8

Cited by 6 publications

(4 citation statements)

References 32 publications

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“…Nanofibrillated cellulose (NFCs) extracted from natural cellulose fiber has high aspect ratio (500-2000 nm in length with a diameter of 4-20 nm) with high surface area, high crystallinity, good mechanical and oxygen barrier property which is essential for preventing lipid oxidation in food. [5][6][7][8][9][10][11][12][13][14] However, packaging film made of NFC suffers from high hygroscopicity, poor mechanical properties, and absence of heat-sealing ability. [15][16][17] Instead, coating of packaging film with NFCs may produce multifunctional package, 13,[18][19][20] especially if any antimicrobial agent is incorporated in NFCs prior to their coating onto the film.…”

Section: Introductionmentioning

confidence: 99%

“…It possesses several benefits including low cost, nontoxic, renewable, biocompatible, and chemically stable. Nanofibrillated cellulose (NFCs) extracted from natural cellulose fiber has high aspect ratio (500–2000 nm in length with a diameter of 4–20 nm) with high surface area, high crystallinity, good mechanical and oxygen barrier property which is essential for preventing lipid oxidation in food 5–14 . However, packaging film made of NFC suffers from high hygroscopicity, poor mechanical properties, and absence of heat‐sealing ability 15–17 .…”

Section: Introductionmentioning

confidence: 99%

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Integration of benzoic acid‐loaded nanocellulose fibers on biodegradable poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) matrix and its application into food preservation

Thodikayil,

Kumar,

Thakur

et al. 2024

Polymer Engineering & Sci

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An active food‐packaging film based on biodegradable poly(hydroxybutyrate‐co‐hydroxyvalerate) (PHBV) was fabricated by spraying benzoic acid (BZ)‐loaded nanocellulose dispersions on corona‐treated PHBV films. Corona treatment augmented surface hydrophilicity (contact angle: 46°) and roughness (~60 nm) of the film. While roughness (10 nm from 60 nm) and oxygen permeability (42 cc/m2 day from 205 cc/m2 day) significantly reduced with unaffected water vapor transmission rate, tensile strength (9.85 MPa) and elongation (1.96%) enhanced upon nanocellulose coating on the corona‐treated film. The BZ (23 wt% loading) containing coated film displayed excellent antibacterial activity up to 6 days, demonstrating immense potential in food‐packaging applications.Highlights Effect of corona treatment on hydrophobic poly(hydroxybutyrate‐co‐hydroxyvalerate) (PHBV) film was evaluated. Surface hydrophilicity and roughness were introduced on PHBV film after corona exposure. Antimicrobial‐loaded Nanofibrillated cellulose coating enhanced antibacterial activity of film preserving its mechanical and barrier properties. BZ‐NFC‐PHBV film increased the shelf life of watermelon juice.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integration of benzoic acid‐loaded nanocellulose fibers on biodegradable poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) matrix and its application into food preservation

Thodikayil,

Kumar,

Thakur

et al. 2024

Polymer Engineering & Sci

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“…In another study impact strength of recycled nylon-6 was improved by 55.5% with the addition of Hytrel (elastomer) [29]. However, for packaging applications, both mechanical and barrier properties (like oxygen transmission rate, OTR, and water vapor transmission rate, WVTR) of pure nylon-6 were targeted by blending with nanoclays like montmorillonite [30] and Cloisite 30B [31], which increased oxygen barrier by 2.8 times. With the continuous trend of sustainability, green fillers are favored.…”

Section: Introductionmentioning

confidence: 99%

Valorization of nylon and viscose-rayon textile yarn wastes for fabricating nanocomposite films

Mishra¹,

Ahuja²,

Mahur³

et al. 2023

Express Polym. Lett.

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In this work, two types of pre-consumer textile waste, namely, viscose-rayon and nylon yarn, were utilized for nanocomposite filmmaking using the green solvent casting method. The nanocellulose was extracted from the viscose-rayon and incorporated as a filler in nylon films. The effects of nanocellulose on thermal, chemical, mechanical, structural, and barrier properties of films containing 0.1, 0.5, and 1 wt% nanocellulose were investigated in detail. The thermal study of films using differential scanning calorimetry (DSC) confirmed that adding nanocellulose into the nylon matrix does not act as a nucleating agent as nylon yarn waste already had ~5 wt% nucleating agents (thermogravimetric analysis, TGA). Rather, a decrease in the crystallinity of films was determined with the addition of nanocellulose. No significant changes in the mechanical properties were observed for nylon nanocomposite films. However, an increased hydrogen bonding was observed between the nanocellulose and nylon, along with the reorientation of hydrogen bonds (Fourier-transform infrared spectroscopy, FTIR). A dense cross-section and structured surface were observed in the scanning electronmicroscopic (SEM) images for nanocomposite films. The water vapor barrier of films increased as the concentration of nanocellulose increased in the nylon films and resulted in a 55% decrease in water vapor transmission rate (WVTR) compared to neat nylon film.

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“…This supports the primary goal of the current study, which is to investigate the effect of process parameters and condition optimization using RSM for optimizing the tribological performance of polyamide. This fosters the objective of the optimization of process parameters such as load, temperature, weight percentage of reinforcement, sliding velocity, sliding distance, and etc., especially using the response surface methodology (RSM) [ 32 ]. To optimize the process variables for tribological performance, the central composite design (CCD) is used, and the results of the experiments are scientifically tabulated.…”

Section: Introductionmentioning

confidence: 99%

Response Surface Methodology Based Optimization of Test Parameter in Glass Fiber Reinforced Polyamide 66 for Dry Sliding, Tribological Performance

Jagadeesan¹,

Selvaraj

Santhosh

et al. 2022

Materials

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The tribological performance of a glass fiber reinforced polyamide66 (GFRPA66) composite with varying fiber weight percentage (wt.%) [30 wt.% and 35 wt.%] is investigated in this study using a pin-on-disc tribometer. GFRPA66 composite specimens in the form of pins with varying percentages of fiber viz., 30 wt.% and 35 wt.% are fabricated by an injection molding process. Tribological performances, such as coefficient of friction (COF) and the specific wear rate (SWR), are investigated. The factors affecting the wear of GFRPA66 composites [with 30 wt.% and 35 wt.% reinforcements] are identified based on the process parameters such as load, sliding velocity, and sliding distance. Design Expert 13.0 software is used for the experimental data analysis, based on the design of experiments planned in accordance with the central composite design (CCD) of the response surface methodology (RSM) technique. The significance of the obtained results are analyzed using analysis of variance (ANOVA) techniques. To attain minimum SWR and COF, the wear performance is optimized in dry sliding conditions. The analysis of experimental data revealed that SWR and COF increased with increasing load, sliding velocity, and sliding distance for GFRPA66 [30 wt.%], but decreased with increasing polyamide weight percentage. The SWR for a maximum load of 80 N, and for a sliding velocity of 0.22 m/s, and a sliding distance of 3500 m for GFRPA66 composite specimens with 30 wt.% reinforcements are found to be 0.0121 m3/Nm, while the SWR for the same set of parameters for GFRPA66 composite specimens with 35 wt.% reinforcements are found to be 0.0102 m3/Nm. The COF for the GFRPA66 composite specimens with 30 wt.% reinforcements for the above set of parameters is found to be 0.37, while the GFRPA66 composite specimens with 35 wt.% reinforcements showed significant improvement in wear performance with a reduction in COF to 0.25. Finally, using a scanning electron microscope (SEM), the worn surfaces of the GFRPA66 are examined and interpreted.

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Processability and performance property correlation for LDPE/PA6-based nanocomposite and its monolayer blown film for packaging application

Cited by 6 publications

References 32 publications

Integration of benzoic acid‐loaded nanocellulose fibers on biodegradable poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) matrix and its application into food preservation

Integration of benzoic acid‐loaded nanocellulose fibers on biodegradable poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) matrix and its application into food preservation

Valorization of nylon and viscose-rayon textile yarn wastes for fabricating nanocomposite films

Response Surface Methodology Based Optimization of Test Parameter in Glass Fiber Reinforced Polyamide 66 for Dry Sliding, Tribological Performance

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