Uneven distribution of nanoparticles in immiscible fluids: Morphology development in polymer blends

Fenouillot, Françoise; Cassagnau, Philippe; Majesté, Jean‐Charles

doi:10.1016/j.polymer.2008.12.029

Cited by 562 publications

(522 citation statements)

References 117 publications

Supporting

Mentioning

501

Contrasting

Unclassified

Order By: Relevance

“…For other systems, such results have been attributed to the concentration of nanoparticles at the interface preventing coalescence by a barrier-type mechanism [35] . On the other hand, as reported previously, in the case of the addition of the components all together in the extruder, if one polymer melts at a temperature significantly lower than the other, the solid particles tend to be dispersed preferentially into this phase [42] . Considering that plasticized starch melts first, the C30B particles could also be located within the TPS continuous phase.…”

Section: Resultssupporting

confidence: 72%

Properties of melt-processed poly(hydroxybutyrate-co-hydroxyvalerate)/starch 1:1 blend nanocomposites

Magalhães¹,

Andrade²

2013

Polímeros

View full text Add to dashboard Cite

Melt blending of 1:1 poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and glycerol-plasticized starch (TPS) was performed in the presence of an organically-modified montmorillonite, incorporated at 2.5, 5, 7.5 and 10 wt% amounts. Scanning electron micrographs (SEM) revealed the role of the organoclay as a compatibilizing agent for the immiscible blend. The blends were also characterized by X-ray diffraction (XRD), tensile tests, humidity absorption and soil burial biodegradation tests. The results indicated improved properties of the hybrid materials in relation to TPS alone, with a faster biodegradation rate than PHBV.

show abstract

Section: Resultssupporting

confidence: 72%

Properties of melt-processed poly(hydroxybutyrate-co-hydroxyvalerate)/starch 1:1 blend nanocomposites

Magalhães¹,

Andrade²

2013

Polímeros

View full text Add to dashboard Cite

show abstract

“…This caused problems during the quantitative analysis of extracted carbon black. In the studied case, the migration mechanism of carbon black (d = 24-30 MPa 1/2 [45]) was induced by the shear forces during compounding, similarly as explained by Fenouillot et al [46]. Filler particles (GTR and carbon black contained therein) and the droplets of the dispersed rubber phase are moving into the butyl rubber matrix so that collisions occur between filler particles (especially fine particles of carbon black) and butyl rubber droplets.…”

Section: Mechanical Propertiesmentioning

confidence: 85%

Curing characteristics, mechanical properties and morphology of butyl rubber filled with ground tire rubber (GTR)

Formela

Haponiuk

2014

Iran Polym J

View full text Add to dashboard Cite

The results on testing application of ground tire rubber (GTR), as potential filler for butyl rubber, are presented. The GTR content variation, within the range of 10-90 phr, was studied with respect to the vulcanization process, static mechanical properties (tensile strength, elongation-at-break, hardness and resilience), dynamic mechanical properties and the morphology of the obtained vulcanizates. Butyl rubber was characterized by its low compatibility to other elastomers [i.e., natural rubber and styrene-butadiene rubber (SBR)-the main ingredients of tires] and low degree of unsaturation. To evaluate the impact of these factors on curing characteristics and mechanical properties of butyl rubber vulcanizates filled with GTR, the same compositions of SBR compounds, cured under identical conditions, were used as reference samples. Based on the obtained data, it can be stated that butyl rubber vulcanizates containing 30 phr of GTR as filler revealed the highest tensile strength and elongationat-break. The microstructural analysis of a sample containing 30 phr of GTR revealed strong interactions between the butyl rubber matrix and GTR. This phenomenon resulted mainly from two factors. First, the cross-link density of the butyl rubber matrix was affected by its competition against GTR for cross-linking agents. Secondly, the migration of carbon black particles from GTR into the butyl rubber matrix had a significant impact on properties of the obtained vulcanizates.

show abstract

“…In those composite materials, functional particles are found to localize into one component in each polymer blend (selective localization). [21][22][23] The 3D paths of the bicontinuous structure facilitate the connectivity of functional particles leading to enhancement of, for example, electrical conductivity and/or thermal conductivity.…”

Section: )mentioning

confidence: 99%

Creep Behavior of a Polymer Blend Melt and 3D Observation of the Deformed Bicontinuous Structure by a High-contrast X-ray CT

Takahashi

Hatakeyama

Nishikawa

2016

J. Soc. Rheol., Jpn

View full text Add to dashboard Cite

Dynamic viscoelastic, creep and steady shear flow measurements are made on a polymer blend melt with a phaseseparated bicontinuous structure. 3D structures at quiescent, constant-stress and constant-shear-rate states are observed by a high-contrast X-ray computerized tomography (CT) after quick quenching of each sample. At the quiescent state, the frequency dependence of the storage modulus at 200 o C shows a power law behavior with the exponent of 0.84. In the shear rate range (at the small shear stress s = 100 Pa) where partial relaxation of the interface of the blend is possible, a peculiar plate-like pattern in the deformed bicontinuous network is observed in the through view of the X-ray CT image. At higher shear rates (at the higher shear stress s = 1000 Pa) where the interface relaxation is suppressed, another peculiar short plate-like pattern appears in the edge view. When the shear rate in the steady shear flow is equal to the average shear rate in the creep test, a very similar deformed pattern of the interface is observed.At the macroscopic shear strain of 3.2 in the creep test at 100 Pa, the observed strain of the deformed bicontinuous network has a distribution and the majority are much smaller than the strain expected from the affine deformation assumption. An average orientation angle of the deformed network at the shear strain of 3.2 corresponds to the angle given by the affine deformation of the shear strain 1.35.

show abstract

Uneven distribution of nanoparticles in immiscible fluids: Morphology development in polymer blends

Cited by 562 publications

References 117 publications

Properties of melt-processed poly(hydroxybutyrate-co-hydroxyvalerate)/starch 1:1 blend nanocomposites

Properties of melt-processed poly(hydroxybutyrate-co-hydroxyvalerate)/starch 1:1 blend nanocomposites

Curing characteristics, mechanical properties and morphology of butyl rubber filled with ground tire rubber (GTR)

Creep Behavior of a Polymer Blend Melt and 3D Observation of the Deformed Bicontinuous Structure by a High-contrast X-ray CT

Contact Info

Product

Resources

About