Breakup behavior of nanolayers in polymeric multilayer systems — Creation of nanosheets and nanodroplets

Feng, Jingxing; Zhang, Ziyou; Bironeau, Adrien; Guinault, Alain; Miquelard‐Garnier, Guillaume; Sollogoub, Cyrille; Olah, Andrew; Baer, E.

doi:10.1016/j.polymer.2018.03.049

Cited by 28 publications

(29 citation statements)

References 21 publications

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“…Such difference was attributed to the fact that the maximum supercooling crystallization temperature of Nylon 6 was constant at 124 °C, independent from the surrounding material. This result validated the theory derived from the previous observation on polymer droplets made by spraying method and layer breakup method …”

Section: Resultssupporting

confidence: 90%

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Effect of compatibilizer on morphology and properties of HDPE/Nylon 6 blends

Feng

Zhang²,

MacInnis³

et al. 2019

J Polym Sci B Polym Phys

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The compatibilization effect of linear low‐density polyethylene‐grafted maleic anhydride (LLDPEgMA) and high‐density polyethylene‐grafted maleic anhydride (HDPEgMA) on high‐density polyethylene (HDPE)/polyamide 6 (Nylon 6) blend system is investigated. The morphology of 45 wt %/55 wt % polyethylene/Nylon 6 blends with three compatibilizer compositions (5 wt %, 10 wt %, and 15 wt %) are characterized by atomic force microscopic (AFM) phase imaging. The blend with 5 wt % LLDPEgMA demonstrates a Nylon 6 continuous, HDPE dispersed morphology. Increased amount of LLDPEgMA leads to sharp transition in morphology to HDPE continuous, Nylon 6 dispersed morphology. Whereas, increasing HDPEgMA concentration in the same blends results in gradual morphology transition from Nylon 6 continuous to co‐continuous morphology. The mechanical properties, oxygen permeability, and water vapor permeability are measured on the blends which confirm the morphology and indicate that HDPEgMA is a better compatibilizer than LLDPEgMA for the HDPE/Nylon 6 blend system. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019, 57, 281–290

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Section: Resultssupporting

confidence: 90%

“…Measuring gas permeability of the extruded polymer blend films could effectively predict the blend morphology at a given composition . The relationship between oxygen permeability and Nylon 6 composition in the polypropylene/Nylon 6 blend had been discussed in the previous paper .…”

Section: Introductionmentioning

confidence: 99%

Effect of compatibilizer on morphology and properties of HDPE/Nylon 6 blends

Feng

Zhang²,

MacInnis³

et al. 2019

J Polym Sci B Polym Phys

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“…Mechanical, optical, gas barrier, electronic, and aesthetic properties can all be improved through multilayering. Multilayer coextrusion technology also provides a unique research tool for studying phenomena including layer interdiffusion, continued crystallization, and interlayer adhesion due to their large interface to volume ratio …”

Section: Introductionmentioning

confidence: 99%

Thermoformable high oxygen barrier multilayer EVOH/LDPE film/foam

Souza

Feng

Olah

et al. 2020

J of Applied Polymer Sci

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The effect of the number of layers on oxygen transmission and thermoformability of novel multilayer film/foam materials was investigated. Ethylene-vinyl alcohol copolymer/low-density polyethylene multilayered film/foam composites having 16, 32, and 64 alternating layers were developed using continuous multilayer coextrusion process, and the morphology, density, oxygen transmission, and mechanical properties of the as-extruded film/foams were characterized. Tensile properties of the film/foams at elevated temperatures were used to optimize thermoforming conditions. Uniaxial orientation was discovered as an efficient approach to evaluate the potential for thermoforming. Oxygen transmission showed a strong correlation with the thickness reduction which could be used as an indicator for barrier properties of the packaging materials. Film/foam materials with 32 layers demonstrated optimum performance with low oxygen transmission along with high drawing capability.

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“…7,8 The markedly improved macroscopic properties in the coextruded multilayer films are generally attributed to the dominating interface/interphase and/or confinement effects. 2,9 Considerable efforts have been made to prepare multilayered films with a great number of interfaces by the combination of alternating layers of immiscible or partially miscible polymer pairs, such as polystyrene (PS)/ poly(methyl methacrylate) (PMMA), 10,11 polycarbonate (PC)/PMMA, 12 PC/poly(vinylidene fluoride) (PVDF), 13,14 polysulfone/PVDF, 15,16 and PS/polycaprolatone (PCL), 17 etc.…”

Section: Introductionmentioning

confidence: 99%

Critical Role of Interfacial Diffusion and Diffuse Interphases Formed in Multi-Micro-/Nanolayered Polymer Films Based on Poly(vinylidene fluoride) and Poly(methyl methacrylate)

Lü

Lamnawar

Maazouz

et al. 2018

ACS Appl. Mater. Interfaces

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It is known that the macroscopic properties of multilayer polymer films are largely dominated by the diffuse interphase formed via interfacial diffusion between neighboring layers. However, not much is known about the origin of this effect. In this work, we reveal the role of interfacial diffusion and the diffuse interphase development in multilayer polymer films, based on a compatible poly(vinylidene fluoride)/poly(methyl methacrylate) system fabricated by forced-assembly micro-/nanolayer coextrusion. Interestingly, the layer morphology is found to prevail in all investigated multilayer films, even for the nanolayered system where the interdiffusion is substantial. It is also demonstrated that, in the presence of macromolecular and geometrical confinements, interfacial diffusion significantly alters the crystalline morphology and microstructure of the resulting micro-/nanolayered films, which leads to quantitatively different dielectric and rheological properties. More importantly, the combination of dielectric relaxation spectroscopy and energy-dispersive X-ray analysis further reveals that multiple diffuse interphases with various length scales exist in the multilayer structures. The presence of these multiple interphases is explained in terms of a proposed physical picture for the interdiffusion of fast-mode mechanism occurring in the coextrusion process, and their length scales (i.e., interphase thicknesses) are further mapped quantitatively. These findings provide new insights into the effects of interfacial diffusion and diffuse interphases toward tailoring interfaces/interphases in micro-/nanolayered polymer structures and for their advanced applications.

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Breakup behavior of nanolayers in polymeric multilayer systems — Creation of nanosheets and nanodroplets

Cited by 28 publications

References 21 publications

Effect of compatibilizer on morphology and properties of HDPE/Nylon 6 blends

Effect of compatibilizer on morphology and properties of HDPE/Nylon 6 blends

Thermoformable high oxygen barrier multilayer EVOH/LDPE film/foam

Critical Role of Interfacial Diffusion and Diffuse Interphases Formed in Multi-Micro-/Nanolayered Polymer Films Based on Poly(vinylidene fluoride) and Poly(methyl methacrylate)

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