High-Performance Transparent Laminates Based on Highly Oriented Polyethylene Films

Lin, Yunyin; Cao, Jun; Zhu, Meifang; Bilotti, Emiliano; Zhang, Han; Bastiaansen, Cees W. M.; Peijs, Ton

doi:10.1021/acsapm.0c00404

Cited by 10 publications

(9 citation statements)

References 49 publications

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“…When 3% SQD was added to the G/A film, the T 660 decreased by 3%, while T 280 decreased by 78%. The UV-barrier property of the G/A film increased significantly by adding SQDs without sacrificing the transparency of the film . UV-barrier is an important property of a packaging film that can preserve the quality of foods that are easily deteriorated by photocatalytic oxidation, such as high-fat foods …”

Section: Resultsmentioning

confidence: 99%

“…The UV-barrier property of the G/A film increased significantly by adding SQDs without sacrificing the transparency of the film. 55 UV-barrier is an important property of a packaging film that can preserve the quality of foods that are easily deteriorated by photocatalytic oxidation, such as high-fat foods. 28 Mechanical Properties and Water Vapor Permeability.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Sulfur Quantum Dots as Fillers in Gelatin/Agar-Based Functional Food Packaging Films

Priyadarshi

Riahi

Rhim

et al. 2021

ACS Appl. Nano Mater.

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The present work is the first attempt to study the applicability of sulfur quantum dots (SQDs) as functional fillers for food packaging biopolymer films. SQDs were prepared via hydrothermal synthesis using sublimated sulfur powder. The SQDs were 8.7 nm in size and consisted of an elemental sulfur core stabilized by PEG-400 confirmed by TEM, FTIR, and XPS characterization. The SQDs exhibited a high surface charge of −13.9 mV, indicating good dispersion in aqueous suspensions. In addition, the SQDs showed high antioxidant and antimicrobial activities with almost negligible toxicity toward L929 cells even at prolonged exposure of 72 h. The addition of SQDs to the gelatin/agar blend films increased the UV-barrier property without compromising color and transparency. The composite film showed excellent antioxidant activity, a moderate bactericidal effect on Listeria monocytogenes, and an inhibitory effect on Escherichia coli. The SQDs are likely to be value-added, low-cost, safe, and multifunctional nanofillers for preparing functional films in active packaging applications.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Sulfur Quantum Dots as Fillers in Gelatin/Agar-Based Functional Food Packaging Films

Priyadarshi

Riahi

Rhim

et al. 2021

ACS Appl. Nano Mater.

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“…The refractive index of the pores was 1, and the refractive index of the TPU was derived from a previous publication(1.50). [33] In addition, a TFSF wave source was used for scattering e ciency simulation, and a plane wave source of normal incidence was used for solar re ectivity measurement. Moreover, the unit cell for measuring solar re ectivity was set to a uniform thickness of 300 µm and tailored to create randomly distributed pores of a set diameter.…”

Section: Finite-difference Time-domain (Fdtd) Simulationsmentioning

confidence: 99%

Radiative cooling wrapping films with controlled hierarchical porous structures

Park

et al. 2022

Preprint

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Current research has focused on effective solutions to mitigate global warming and the accelerating greenhouse gas emissions. Compared to most cooling methods requiring energy and resources, passive daytime radiative cooling (PDRC) technology offers excellent energy savings as it requires no energy consumption. However, existing PDRC materials encounter unprecedented problems such as complex structures, low flexibility, and performance degradation after stretching. Thus, this study reports a porous structured thermoplastic polyurethane (TPU) film with bimodal pores to produce high-efficiency PDRC with efficient solar scattering using a simple process. The TPU film exhibited an adequately high solar reflectivity of 0.93 and an emissivity of 0.90 in the atmospheric window to achieve an ambient cooling of 5.6°C at midday under a solar intensity of 800 W/m2. Thus, the highly elastic and flexible TPU film was extremely suitable for application on objects with complex shapes. The radiative cooling performance of 3D-printed models covered with these TPU films demonstrated their superior indoor cooling efficiency compared to commercial white paint (8.76°C). Thus, the proposed design of high-efficiency PDRC materials is applicable in various urban infrastructural objects such as buildings and vehicles.

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“…Furthermore, high performance transparent unidirectional and cross-ply composite laminates based on these transparent drawn HDPE films sandwiched between either glass or PC sheets were successfully fabricated with a good combination of high optical transparency, good tensile properties and penetration resistance. [102] For HDPE with a medium M w (~408 kg/mol), it was also reported that the high density of tie molecules and/or entanglements inside the oriented HDPE films (λ~15) prevents the formation of interfibrillar voids during deformation and led to a light transmittance of around 90%. [103] Transparency in drawn HDPE could also be achieved by soaking HDPE in diesel, biodiesel or chloroform before drawing at room temperature (RT).…”

Section: Preventing the Formation Of Voidsmentioning

confidence: 99%

“…Furthermore, high performance transparent unidirectional and cross‐ply composite laminates based on these transparent drawn HDPE films sandwiched between either glass or PC sheets were successfully fabricated with a good combination of high optical transparency, good tensile properties and penetration resistance. [ 102 ]…”

Section: Monoaxially Stretched Transparent Semicrystalline Polymersmentioning

confidence: 99%

Transparent semi‐crystalline polymeric materials and their nanocomposites: A review

Lin

Bilotti

Bastiaansen

et al. 2020

Polymer Engineering & Sci

Self Cite

102

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Optical transparency is an important property for a material, especially in certain fields like packaging, glazing, and displays. Existing commercial transparent polymeric materials are mostly amorphous. Semicrystalline polymers have often-superior chemical resistance and mechanical properties particularly at elevated temperatures or after solid-state drawing but they appear opaque or white in most cases. This review describes the present state-of-the-art of methodologies of fabricating optically transparent materials from semicrystalline polymers. A distinction is made between isotropic, biaxially stretched, and uniaxially stretched semicrystalline polymers. Furthermore, some functionalities of transparent nanocomposites based on semicrystalline polymers are also discussed. This review aims to provide guidelines regarding the principles of manufacturing transparent high-performance semicrystalline polymers and their nanocomposites for potential applications in fields like packaging, building, and construction, aerospace, automotive, and opto-electronics.

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High-Performance Transparent Laminates Based on Highly Oriented Polyethylene Films

Cited by 10 publications

References 49 publications

Sulfur Quantum Dots as Fillers in Gelatin/Agar-Based Functional Food Packaging Films

Sulfur Quantum Dots as Fillers in Gelatin/Agar-Based Functional Food Packaging Films

Radiative cooling wrapping films with controlled hierarchical porous structures

Transparent semi‐crystalline polymeric materials and their nanocomposites: A review

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