Compatibilization of poly(ethylene-co-vinyl alcohol) (EVOH) and EVOH/HDPE blends with ionomers. Structure and properties

Samios, Costas K.; Kalfoglou, Nikos K.

doi:10.1016/s0032-3861(97)10093-3

Cited by 45 publications

(34 citation statements)

References 18 publications

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“…2b is shifted to lower temperatures, indicating the presence of a PAE‐rich phase with some PEMA‐Zn. This is in agreement with the specific interactions between EVOH or PVOH and ionomers [4, 11, 58], previously observed. A distinct PEMA‐Zn transition was not observed; but this is not unusual as stated in the previous paragraph.…”

Section: Resultssupporting

confidence: 93%

“…Poly(amino ether) (PAE) resins are a group of thermoplastics characterized by a very favorable barrier behavior, high adhesion to different substrates, optical quality, low color, and mechanical toughness [6], rendering them especially suitable for the packaging industry. Other resins with hydroxyl groups, such as poly(ethylene‐ co ‐vinyl alcohol) (EVOH) copolymers or poly(vinyl alcohol), also show a large barrier resistance and have been combined with polyolefins to obtain multilayer structures [7–9] or blends [4, 7, 10–16].…”

Section: Introductionmentioning

confidence: 99%

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Compatibilization of PP/PAE blends by means of the addition of an ionomer

Granado

Eguiazábal

Nazábal

2010

Polymer Engineering & Sci

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Minor amounts of poly(ethylene‐co‐methacrylic acid) ionomer neutralized with Zn (PEMA‐Zn) were added in the melt state to blends of polypropylene (PP) with up to 40% of poly(amino ether) (PAE) resin. Given the good barrier characteristics of PAE, it is a good candidate to improve the poor barrier properties of PP. However, PP/PAE blends were found to be almost fully immiscible, with a large dispersed phase size and a brittle mechanical behavior. Upon PEMA‐Zn addition, the dispersed particle size clearly decreased from diameters of several microns to diameters mostly below 0.5 μm, indicating that compatibilization occurred. This compatibilization was due to the presence of PEMA‐Zn in the two phases of the blends and was additionally proven by the large decrease observed in the interfacial tension. Further, the fine morphology led to an enhancement in the unnotched impact strength of the ternary blends and of their ductile behavior (elongation at break 30‐ to 40‐fold that of the corresponding binary blends). POLYM. ENG. SCI., 50:1512–1519, 2010. © 2010 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Compatibilization of PP/PAE blends by means of the addition of an ionomer

Granado

Eguiazábal

Nazábal

2010

Polymer Engineering & Sci

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“…Glycidyl methacrylate (GMA) is often used as reactive compatibilizers in polyester blends because its epoxy groups are reacted with carboxylic or hydroxyl groups of the polyester [12,13]. In addition, poly(ethylene-co-vinyl alcohol) (EVOH) is thermoplastic which combines superior gas barrier properties, high oil resistance with excellent transparency and ease of processing [14] which can be blended with PLA. Choonmee et al [15] studied PLA/EVOH blends in the presence of an esterification catalyst.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of reactive blends of poly(lactic acid), poly(ethylene-co-vinyl alcohol), and poly(ethylene-co-glycidyl methacrylate)

Phromma

Jana

Magaraphan

2015

AIP Conference Proceedings

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“…Packaging films produced from polymeric materials are widely used in the food industry as these plastic materials have many advantages, as they are lightweight, flexible, strong, transparent, and easy to process compared to metal and glass 1–3. Food packaging films need to provide appropriate resistances to oxygen and water‐vapor permeation and must possess adequate mechanical properties to safely maintain product quality during the storage and handling time period (commonly called shelf life ) 4.…”

Section: Introductionmentioning

confidence: 99%

Morphologies and properties of nanocomposite films based on a biodegradable poly(ester)urethane elastomer

Cho

Kim

2011

J of Applied Polymer Sci

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Biodegradable poly(ester)urethane (PU) elastomer-based nanocomposite films incorporated with organically modified nanoclay were prepared with melt-extrusion compounding followed by a casting film process. These films were intended for application as biodegradable food packaging films, with their enhanced gas barrier, mechanical, and thermal properties and good flexibility. From both X-ray diffraction measurements and transmission electron microscopy observations, the coexistence of intercalated tactoids and exfoliated silicate layers in the compounded PU/clay nanocomposite films was confirmed. In addition, the morphology exhibited a clay dispersion state in the matrix and was influenced by the incorporated nanoclay content. The effects of the nanoclay loading level on the thermal, mechanical, and barrier properties of the compounded nanocomposites were also investigated. As a result, it was revealed that the addition of nanoclay up to a certain level resulted in a remarkable improvement in the thermal properties in terms of thermal stability and the degree of thermal shrinkage; mechanical properties, including dynamic storage modulus and tensile modulus; and oxygen/water-vapor barrier properties of the nanocomposite films.

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Compatibilization of poly(ethylene-co-vinyl alcohol) (EVOH) and EVOH/HDPE blends with ionomers. Structure and properties

Cited by 45 publications

References 18 publications

Compatibilization of PP/PAE blends by means of the addition of an ionomer

Compatibilization of PP/PAE blends by means of the addition of an ionomer

Preparation and characterization of reactive blends of poly(lactic acid), poly(ethylene-co-vinyl alcohol), and poly(ethylene-co-glycidyl methacrylate)

Morphologies and properties of nanocomposite films based on a biodegradable poly(ester)urethane elastomer

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