Novel Microorganisms Resistant HDPE Composites with Wood Fiber and Nanosilica Containing Immobilized Nanosilver

Jeziórska, Regina; Zielecka, Maria; Szadkowska, Agnieszka; Gutarowska, Beata; Żakowska, Z.

doi:10.1002/masy.201251118

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…In addition, Yeo et al found that the AgNPs could act as impurities in the polymer matrix and interfere with the crystallization process of LDPE, causing the lower crystallinity. This phenomenon is very consistent with the previous studies in the literature where the AgNP content was varied in other types of polyethylene . The addition of AgNPs has no effect on the melting point ( T m ) of LDPE, ranging from 105.95 to 106.61°C.…”

Section: Resultssupporting

confidence: 92%

“…The extent of load transfer depends on the specific surface area and adhesion strength at the interface of the filler . Jeziorska et al suggested that although the crystallinity of polyethylene is reduced by incorporating nanofillers, an improvement in the tensile modulus can be observed because of the contribution of filler rigidity and good interfacial adhesion between the polymer matrix and the nanofiller.…”

Section: Resultsmentioning

confidence: 99%

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A comprehensive feasibility study on the properties of LDPE‐Ag nanocomposites for food packaging applications

Bumbudsanpharoke¹,

Lee²,

Ko³

2017

Polymer Composites

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The intense recent interest in active food packaging with silver nanoparticles (AgNPs) is attributed to the extraordinary efficacies of the AgNPs against a broadspectrum of food-borne pathogens. A comprehensive study of silver nanocomposites was conducted to identify the effect of the AgNPs on the properties of low-density polyethylene (LDPE) for food packaging applications. The investigation included the study of the optical, thermal, mechanical, and barrier properties, as well as antimicrobial activity against Grampositive and Gram-negative bacteria. Upon addition of AgNPs in LDPE, LDPE-AgNP composite films became less transparent and more yellowish because of surface plasmon resonance vibrations of the AgNPs. The SEM, EDS, and TEM results revealed that spherical AgNPs were distributed on both surface and interior of the LDPE film. While these well-dispersed AgNPs enhanced the barrier properties of LDPE for both oxygen and water vapor, the incorporation of AgNPs impinged onto the thermal properties by reducing the thermal stability and the melting enthalpy of the LDPE film. In addition, LDPE-AgNP composite film showed effective antibacterial activity against Staphylococcus aureus and Escherichia coli. These findings suggest that the LDPE-AgNP composite film can be feasibly used in food packaging to preserve the food quality and extend the shelf-life of the product. POLYM. COM-POS., 00:000-000, used in food packaging to preserve the food quality and extend the shelf-life of the product. POLYM. COMPOS., 39:3178-3186, 2018. FIG. 2. FE-SEM images of surface and cross-sections of neat LDPE and LDPE-AgNP composite films: (a) neat LDPE; (b) LDPE-AgNP 3 ppm; (c) LDPE-AgNP 36 ppm; (d) LDPE-AgNP 75 ppm; and (e) LDPE-AgNP 240 ppm. [Color figure can be viewed at wileyonlinelibrary.com]

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

A comprehensive feasibility study on the properties of LDPE‐Ag nanocomposites for food packaging applications

Bumbudsanpharoke¹,

Lee²,

Ko³

2017

Polymer Composites

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“…Accordingly, they showed that the presence of nanoparticle agglomerations might mask the effects of the higher crystallinity on melting temperature. [ 43 ] According to obtained results, it could be concluded that the melt temperature (T m ) was generally increased at higher ZnO ratios; however, HDPE melting temperatures were not substantially influenced by adding ZnO nanoparticles.…”

Section: Resultsmentioning

confidence: 83%

High‐density polyethylene/zinc oxide nanocomposite with antibacterial and anti‐UV radiation properties to reduce evaporation from free surface waters

et al. 2022

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Climate change, through rising temperatures, higher evaporation rates, and changes in rainfall, can significantly affect the availability of water resources. Evaporation losses from open‐air reservoirs can exacerbate the problem of water scarcity, making it difficult to conserve water. Accordingly, this research aimed to develop nano‐reinforced floating covers to reduce evaporation from free water surfaces. For this purpose, high‐density polyethylene (HDPE), and zinc oxide (ZnO) nanoparticles, via melt‐blending procedures, were used to fabricate the nanocomposites. The morphological, mechanical, antibacterial, and photo‐degradation responses of HDPE/ZnO nanocomposites were assessed, and the physicochemical parameters of water samples were also examined to ensure that nanocomposites did not negatively affect water quality. The results indicated that adding 1 wt% nanofiller increased the tensile strength, while flexural strength values were modestly improved by increasing nanofillers up to 10 wt%. The irradiated nanocomposites generally displayed significant enhancement not only in the tensile strength but also in the flexural strength. Meanwhile, the addition of ZnO to HDPE had no adverse effects on water quality, though contributing to the antibacterial performance of the specimens over the neat polymer. To conclude, the fabricated nanocomposite with 1 wt% ZnO could be proposed as a promising candidate to reduce evaporation losses from free water surfaces, especially in arid and semi‐arid areas.

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“…It is well known that PE mechanical properties can be enhanced by the addition of a small amount of reinforcing agents such as inorganic nanoparticles . Many studies focused on differently shaped fillers (lamellar, acicular, spherical) such as clay, titania, and silica in order to improve the mechanical properties of PE.…”

Section: Introductionmentioning

confidence: 99%

Effect of a post‐annealing process on microstructure and mechanical properties of high‐density polyethylene/silica nanocomposites

Guichard

Cassagnau

Sudre

et al. 2019

J Polym Sci B Polym Phys

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High-density polyethylene (HDPE) and nanosilica nanocomposites were prepared for SiO 2 content up to 15 wt%. Microstructural characterization evidenced a homogenous distribution of silica aggregates with a mean size increasing with the filler content finally resulting in a rheological percolation between 7.5 and 10 wt%. Nanoparticles did not induce any significant impact on the matrix crystallinity but led to a real improvement on elastic properties accompanied with a large embrittlement above the percolation threshold. The effect of annealing near HDPE melting temperature was studied. Differential scanning calorimetry, X-ray diffraction, and small-angle X-ray scattering analyses showed a significant change in the HDPE microstructure after annealing at 125 C. A large increase in the crystallinity (from 68 to 76%) and a clear improvement of Young's modulus (by 55%) were observed prior to polymer degradation. A valuable impact of silica particles on thermal stability was also obvious regarding the evolution of elastic properties for extended exposure times (850-1,200 h).

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Novel Microorganisms Resistant HDPE Composites with Wood Fiber and Nanosilica Containing Immobilized Nanosilver

Cited by 3 publications

References 18 publications

A comprehensive feasibility study on the properties of LDPE‐Ag nanocomposites for food packaging applications

A comprehensive feasibility study on the properties of LDPE‐Ag nanocomposites for food packaging applications

High‐density polyethylene/zinc oxide nanocomposite with antibacterial and anti‐UV radiation properties to reduce evaporation from free surface waters

Effect of a post‐annealing process on microstructure and mechanical properties of high‐density polyethylene/silica nanocomposites

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