The influence of interfacial interactions on the morphology and thermal properties of binary polymer blends

Willis, J. M.; Favis, Basil D.; Lavallée, C.

doi:10.1007/bf00595741

Cited by 49 publications

(31 citation statements)

References 32 publications

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“…In general, an increase in viscosity can be seen due to the presence of the compatibilizer. As previously described by Willis et al [11], this behavior is related to the localization of the ionomer at the interface decreasing the interfacial mobility of the disperse phase. Chang and Hwu [27] showed that a higher viscosity of the compatibilized blends indicates better compatibility.…”

Section: Rheology Of Polymer Blendsmentioning

confidence: 64%

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Film Processability, Morphology, and Properties of Polyamide-6/Low Density Polyethylene Blends

López‐Barrón

Robledo‐Ortíz

Rodrigue

et al. 2007

Journal of Plastic Film & Sheeting

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The processing, morphology, and tensile properties of blown films prepared from polyamide-6 (PA6) and low density polyethylene (LDPE) blends with and without compatibilizer (Surlyn Õ 9020) are studied. The results indicate that the presence of PA6 and a compatibilizer has a great influence on blend rheology as well as mechanical and barrier properties of LDPE films where the morphology of the dispersed phase (PA6) plays an important role. In this study, film morphology is controlled mainly by variations in draw ratio and bubble pressure. It is shown that biaxial orientation of the films explains the anisotropic behavior of the mechanical properties and improved barrier properties due to the production of a lamellar structure.

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Section: Rheology Of Polymer Blendsmentioning

confidence: 64%

“…(Surlyn) [6,11]. Copolymers produced by this reaction are located at the interface and act as interfacial agents [11].…”

Section: Study On Properties Of Polyamide-6/ldpe Blendsmentioning

confidence: 99%

Film Processability, Morphology, and Properties of Polyamide-6/Low Density Polyethylene Blends

López‐Barrón

Robledo‐Ortíz

Rodrigue

et al. 2007

Journal of Plastic Film & Sheeting

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“…[9] There are several studies of the improvement in miscibility of PA6 with different polyolefins when an ionomeric compound was used as compatibilizer. [10][11][12][13][14] For this reason it seems possible that the ionic groups on the ionomer could undergo favorable interactions with the ammonium salt of the organoclay.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ionomeric Compatibilizer on Clay Dispersion in Polyethylene/Clay Nanocomposites

Sánchez-Valdés

Lopez‐Quintanilla

Ramı́rez-Vargas

et al. 2006

Macro Materials & Eng

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Summary: Linear low‐density polyethylene (LLDPE)/clay nanocomposites are obtained and studied by using a zinc‐neutralized carboxylate ionomer as a compatibilizer. LLDPE‐g‐MA is used as a reference compatibilizer. Two different clays, natural montmorillonite (Closite Na+) and a chemically modified clay Closite 20A have been used. Nanocomposites are prepared by melt blending in a twin‐screw extruder using two mixing methods: two‐step mixing and one‐step mixing. The relative influence of each compatibilizer is determined by wide‐angle X‐ray diffraction structural analysis and mechanical properties. The results are analyzed in terms of the effect of the compatibilizing agent and incorporation method in the clay dispersion, and the mechanical properties of the nanocomposites. Experimental results confirm that the film samples with ionomer show a good mechanical performance only slightly below that of the samples with maleic anhydride (MA). The two‐step mixing conditions result in better dispersion and intercalation for the nanofillers than one‐step mixing. The exfoliation of clay platelets leads to an improved thermal stability of the composite. The oxygen permeability of the clay nanocomposites, using ionomer as a compatibilizer, is decreased by the addition of the clay.TEM image of a PE/4 wt.‐% Closite 20A nanocomposite formed using ionomer.imageTEM image of a PE/4 wt.‐% Closite 20A nanocomposite formed using ionomer.

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“…15 In this study, the kinetics were probed indirectly because the cooling rate after molding was the same for all materials. However, the cooling rate was quite slow in comparison with that of Measurements for T m and percentage crystallinity were duplicated five-times.…”

Section: Resultsmentioning

confidence: 99%

Use of zinc‐neutralized ethylene/methacrylic acid copolymer ionomers as blend compatibilizers for nylon 6 and low‐density polyethylene

Leewajanakul

Pattanaolarn

Ellis

et al. 2003

J of Applied Polymer Sci

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ABSTRACT:The effect of the composition on the morphologies and properties of uncompatibilized and compatibilized blends of nylon 6 and low-density polyethylene were studied over a wide range of weight fractions. The uncompatibilized blends had substantially reduced mechanical properties after mixing, and this was almost certainly due to poor interfacial adhesion between the two polymers. The addition of a zinc-neutralized poly(ethylene-co-methacrylic acid) ionomer (Surlyn 9020) as a compatibilizer improved the mechanical properties in comparison with those of the material blended without the compatibilizer. The clearest evidence of this improvement came from dynamic mechanical studies; for selected blends with high polyethylene contents, the drop in the modulus corresponding to the transition of a solid to a melt occurred at higher temperatures with the added compatibilizer. This improvement in the properties was accompanied by a reduction in the dispersed-phase size due to the interaction between the ionic part of the ionomer and the amide groups of nylon 6, especially when nylon 6 was the dispersed phase of the blend.

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The influence of interfacial interactions on the morphology and thermal properties of binary polymer blends

Cited by 49 publications

References 32 publications

Film Processability, Morphology, and Properties of Polyamide-6/Low Density Polyethylene Blends

Film Processability, Morphology, and Properties of Polyamide-6/Low Density Polyethylene Blends

Effect of Ionomeric Compatibilizer on Clay Dispersion in Polyethylene/Clay Nanocomposites

Use of zinc‐neutralized ethylene/methacrylic acid copolymer ionomers as blend compatibilizers for nylon 6 and low‐density polyethylene

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