Influence of solid‐state biaxial orientation on the adhesion between poly(ethylene terephthalate)/tie layer/isotactic polypropylene multilayer films

Ghazaryan, Gagik; Hausmann, K.; Tervoort, Theo A.

doi:10.1002/pol.20190046

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…Light, heat, moisture, and oxygen cause foods and beverages' taste, nutritional quality, and appearance to deteriorate. Besides, it is known that there is an interaction between packaged food products and packaging material 1 . Therefore, the selection of packaging materials that come into contact with food plays a critical role in their preservation 2,3 .…”

Section: Introductionmentioning

confidence: 99%

Improvement of environmental stress cracking performance, load‐carrying capacity, and UV light barrier property of polyethylene terephthalate packaging material

Inaner

Demirel

Yaraş

et al. 2022

Polymers for Advanced Techs

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This study deals with the improvement of light barrier properties and stress cracking strength of polyethylene terephthalate (PET) packaging materials by incorporating calcium metaborate (CaB 2 O 4 ). CaB 2 O 4 powders were synthesized by the sol-gel method. After the extrusion process produced PET/ CaB 2 O 4 granules, the preform and bottle production was carried out by injection molding and blow molding. Compared to pure PET, UV transmittance is reduced (~88%), and it is more effective at lower wavelengths (<800 nm). Similarly, the presence of CaB 2 O 4 improved the environmental stress cracking performance of PET packaging materials. While the burst strength increased in the range of 0.05%-0.2% CaB 2 O 4 concentration, it decreased at higher concentrations. The load-carrying capacity is approximately 109% higher than pure PET. Acetic acid (COOH) degradation increased with the incorporation of CaB 2 O 4 particles, while isophthalic acid and diethylene glycol degradations did not change. The experimental data indicate that the photocatalytic degradation of the PET bottle is prevented significantly, and its mechanical performance is also improved with the incorporation of CaB 2 O 4 . Thanks to this novel product, the quality of food and beverages in PET packaging materials can be protected from the harmful effects of light, and the deformation of PET packaging materials can be prevented for various reasons.

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Section: Introductionmentioning

confidence: 99%

Improvement of environmental stress cracking performance, load‐carrying capacity, and UV light barrier property of polyethylene terephthalate packaging material

Inaner

Demirel

Yaraş

et al. 2022

Polymers for Advanced Techs

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“…In addition, many products use a migration barrier preventing plastic components from penetrating the food [ 37 , 38 ]. If the layers do not connect together sufficiently, tie layers can be used [ 39 , 40 ]. Various types of novel tie resins, graft copolymers, and maleated polymers are used as binders.…”

Section: Structure Of Multilayer Packagingmentioning

confidence: 99%

Overview of the Cast Polyolefin Film Extrusion Technology for Multi-Layer Packaging Applications

et al. 2023

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The review article presents the technology of producing polyolefin-based films by extrusion casting. Due to the wide use of this type of film as packaging for food and other goods, obtaining films with favorable properties is still a challenge for many groups of producers in the plastics market. The feedblock process and multimanifold process are the main methods of producing multi-layer film. In the case of food films, appropriate barrier properties are required, as well as durability and puncture resistance also at low temperatures. On the other hand, in order to properly pack and present products, an appropriate degree of transparency must be maintained. Therefore, processing aids such as anti-slip, anti-block and release agents are commonly used. Other popular modifiers, such as waxes, fatty acid amides and mineral fillers—silica, talc or calcium carbonate–and their use in film extrusion are discussed. The article also presents common production problems and their prevention.

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“…Polypropylene (PP) film products have successfully achieved that the orientation of stretched PP film changed through the stretching technology. 19 During the stretching process, the molecular chain moves, making its two-dimensional arrangement more orderly. Liang et al prepared an isotactic polypropylene film with ultrahigh content as well as ordered and continuous β-transition crystallinity by stretching.…”

Section: Introductionmentioning

confidence: 99%

“…In our daily life, the tensile orientation has a huge impact on the strength of the film. Polypropylene (PP) film products have successfully achieved that the orientation of stretched PP film changed through the stretching technology . During the stretching process, the molecular chain moves, making its two-dimensional arrangement more orderly.…”

Section: Introductionmentioning

confidence: 99%

“…Melt extruded PEEK films typically do not take full advantage of the film’s semicrystalline structure to meet the application requirements for high-strength PEEK films. High-strength and high-temperature-resistant PEEK films are increasingly needed, rendering the method of preparation of high-strength PEEK material with orientation in all directions urgently demanded. − …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biaxially Stretched High-Strength Isotropic Poly(ether ether ketone) Films for Low Dielectric Constant Materials

Wang,

Lin,

et al. 2024

ACS Appl. Polym. Mater.

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Poly(ether ether ketone) (PEEK) films are widely used in aerospace and telecommunications because of high mechanical strength and insulating properties. However, the mechanical strength and electrical loss of the film in practical applications limit its application; thus, the development of low-cost materials with higher mechanical properties and lower dielectric constants has become the research hot spot. In this work, taking full advantage of the crystalline orientation properties of PEEK films, the construction of isotropic PEEK films was presented by the low-cost biaxial stretching method. The biaxial stretching technique changes the molecular chain arrangement and forms better crystalline structure, which improves the tensile strength and reduces the dielectric constant at the same time. Meanwhile, the macroscopic scale modification and crystalline orientation process of PEEK films under biaxial stretching conditions were investigated as well as the microphase morphology and properties of PEEK films under different stretching ratios (λ L ), stretching temperatures (T), and stretching speeds (ν). Based on the crystalline and oriented structures, the tensile strength (r-PEEK-4 = 156.7 MPa) of the biaxially stretched PEEK film is nearly 2.5 times higher than the unstretched PEEK film (65.6 MPa), and the storage modulus (2.42 GPa) and T g (172.3 °C) are also significantly increased. In addition, the dielectric constant of the biaxially stretched PEEK film is drastically reduced to 2.62, and the breakdown strength reaches 503.6 MV/m. The present work has obvious implications for the investigation of the crystalline behavior of PEEK films as well as for applications in the telecommunications industry.

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Influence of solid‐state biaxial orientation on the adhesion between poly(ethylene terephthalate)/tie layer/isotactic polypropylene multilayer films

Cited by 5 publications

References 17 publications

Improvement of environmental stress cracking performance, load‐carrying capacity, and UV light barrier property of polyethylene terephthalate packaging material

Improvement of environmental stress cracking performance, load‐carrying capacity, and UV light barrier property of polyethylene terephthalate packaging material

Overview of the Cast Polyolefin Film Extrusion Technology for Multi-Layer Packaging Applications

Biaxially Stretched High-Strength Isotropic Poly(ether ether ketone) Films for Low Dielectric Constant Materials

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