Transparent and super-gas-barrier PET film with surface coated by a polyelectrolyte and Borax

Lu, Mengze; Huang, Sheng; Chen, Shou; Ju, Qing; Xiao, Min; Peng, Xiaohua; Wang, Shuanjin; Ye, Meng

doi:10.1038/s41428-017-0015-5

Cited by 19 publications

(11 citation statements)

References 36 publications

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“…The hydrophobic surface of PET makes it not suitable for LbL assembly with aqueous solution even after corona treatment. In our previous work, we treated PET with 4, 4′-diphenylmethane diisocyanat (MDI), which can react with the hydroxyl groups on PET surface [41]. However, the MDI treated PET only is suitable for coating PAA solution with high concentration.…”

Section: Resultsmentioning

confidence: 99%

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Nano-Brick Wall Architectures Account for Super Oxygen Barrier PET Film by Quadlayer Assembly of Polyelectrolytes and α-ZrP Nanoplatelets

Han

Luo

et al. 2018

Polymers

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Nanobrick wall hybrid coating with super oxygen barrier properties were fabricated on polyethylene terephthalate (PET) film using a quadlayer (QL) assembly of polyelectrolytes and nanoplateles. A quadlayer assembly consists of three repeat units of polyacrylic acid (PAA), poly (dimethyl diallyl ammonium chloride) (PDDA) and layered α-zirconium phosphate (α-ZrP). PDDA with positive charges can assemble alternatively with both α-ZrP and PAA with negative charges to form nanobrick wall architectures on the surface of PET film via the electrostatic interaction. The lamellar structure of α-ZrP platelets and the dense QL assembly coating can greatly reduce the oxygen transmission rate (OTR) of PET film. Compared to pristine PET film, the OTR of PET (QL)19 is reduced from 57 to 0.87 cc/m2/day. Moreover, even with 19 QLs coating, PET (QL)19 composite film is still with an optical transparency higher than 90% and a haze lower than 10%. Therefore, the transparent PET (QL)n composite films with super oxygen barrier properties show great potential application in food packaging and flexible electronic packaging.

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Section: Resultsmentioning

confidence: 99%

“…But the hydroscopicity of PAA limits its application. We have reported a covalent layer-by-layer assembly method to fabricate a transparent and super-gas-barrier PET film by PAA based coating [41], in which the thick of coating film was difficult to control.…”

Section: Introductionmentioning

confidence: 99%

Nano-Brick Wall Architectures Account for Super Oxygen Barrier PET Film by Quadlayer Assembly of Polyelectrolytes and α-ZrP Nanoplatelets

Han

Luo

et al. 2018

Polymers

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“…when it was applied on the PET film to form a coating, the COOH groups 41 were transformed into diverse structures as shown in Figure 1(b): (1) Dehydration between molecular chains to form anhydride (COOOC) (colored red in Figure 1(b)); (2) Dehydration within molecular to form anhydride (COOOC) (colored blue in figure Figure 1(b)); (3) reserved as COOH (colored black in Figure 1(b)). Among them, the cross‐linking between the chains plays a crucial role in improving the oxygen barrier of the coated PET film by restrained the chain activity effectively 42 …”

Section: Introductionmentioning

confidence: 99%

Oxygen barrier property of synthesized polyacrylate coatings containing inter‐chain cross‐linking architecture on PET film

Zhong

Yang

Gao

et al. 2021

J of Applied Polymer Sci

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A series of coatings which applied for improving the oxygen barrier property of polyethylene terephthalate (PET) film were prepared based on the copolymerization of methyl methacrylate, methyl acrylate, diallyl maleate, and maleic acid (MA). The chemical structures of the coatings were characterized by Fourier Transform Infrared spectrometer. The curing behavior was analyzed by differential scanning calorimetry. The oxygen permeability (Po 2 ) was measured by gas permeability tester. The molecular weight was investigated by gel permeation chromatography (GPC). Po 2 is inversely proportional to the oxygen barrier property that the decrease of Po 2 indicates the improvement of oxygen barrier property. The coating containing inter-chain cross-linking structure formed by the dehydration of carboxylic acid improves the oxygen barrier property of PET film greatly. With the increasing content of MA, the oxygen barrier capability of coated PET film is enhanced according to the Po 2 decreasing from 1.450 to 0.8956. The Po 2 of coated PET film is minimized by selecting N-methyl pyrrolidone as solvent for polymerization. The GPC results indicate that the oxygen barrier of novel coated PET film can be obtained when the weight average molecular weight (Mw) is up to the stipulated value.

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“…Moreover, both the weak adhesion of PVDC coating with PET substrate [46][47][48] and the brittleness of the coating deteriorate the barrier property [49][50][51]. However, solvent-based amorphous polymers with a high oxygen barrier property [52][53][54] are promising solutions for avoiding these problems [55][56][57].…”

Section: Introductionmentioning

confidence: 99%

Polyacrylate Decorating Poly(ethylene terephthalate) (PET) Film Surface for Boosting Oxygen Barrier Property

et al. 2021

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Polymeric barrier materials are critical in contemporary industries for food, medicine, and chemical packaging. However, these materials, such as PET films, are impeded by the optimization of barrier properties by virtue of molecular design. Herein, a new methyl methacrylate-methyl acrylate-diallyl maleate-maleic acid (MMA-MAc-DAM-MA) was synthesized to tailor the surface properties of PET films for maximizing oxygen barrier properties. During the MMA-MAc-DAM-MA coating and curing process, the chemical structure evolutions of MMA-MAc-DAM-MA coatings were characterized, indicating that the cross-linking conversion and proportion of –COOH groups are critical for the oxygen barrier properties of coatings. The inherent –COOH groups are transformed into designed structures, including intramolecular anhydride, inter-chain anhydride and retained carboxylic acid. Therein, the inter-chain anhydride restraining the activity of coated polymer chain mainly contributes to enhanced barrier properties. The thermal properties of novel coatings were analyzed, revealing that the curing behavior is strongly dependent on the curing temperatures. The impacts of viscosity of the coating solution, coating velocity, and coating thickness on the oxygen permeability (Po2) of the coatings were investigated using a gas permeability tester to explore the optimum operating parameters during practical applications, which can reduce the Po2 of PET film by 47.8%. This work provides new insights on advanced coating materials for excellent barrier performance.

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Transparent and super-gas-barrier PET film with surface coated by a polyelectrolyte and Borax

Cited by 19 publications

References 36 publications

Nano-Brick Wall Architectures Account for Super Oxygen Barrier PET Film by Quadlayer Assembly of Polyelectrolytes and α-ZrP Nanoplatelets

Nano-Brick Wall Architectures Account for Super Oxygen Barrier PET Film by Quadlayer Assembly of Polyelectrolytes and α-ZrP Nanoplatelets

Oxygen barrier property of synthesized polyacrylate coatings containing inter‐chain cross‐linking architecture on PET film

Polyacrylate Decorating Poly(ethylene terephthalate) (PET) Film Surface for Boosting Oxygen Barrier Property

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