Structural analysis of multicomponent nanoclay-containing polymer blends through simple model systems

As’habi, L.; Jafari, Seyed Hassan; Baghaei, Bahareh; Khonakdar, Hossein Ali; Pötschke, Petra; Böhme, Frank

doi:10.1016/j.polymer.2008.02.049

Cited by 53 publications

(32 citation statements)

References 31 publications

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“…Such a behavior has been reported after addition of nanoparticles into immiscible polymer blends as an effective method to compatibilize the resulting blend, owing to their migration and localization at the blend interface used in these works. [15][16][17][18][19][20][21] However, Lipatov et al [32][33][34] highlighted that the effect of filler introduction is mostly based on the thermodynamics of interaction near the surface. In this work, the silica nanoparticles do not have any specific affinity with respect to both polymeric partners, and tend to readily migrate at the PLA/P[CL-co-LA] interface where the interfacial adhesion is the lowest.…”

Section: Discussionmentioning

confidence: 99%

“…7,[11][12][13][14] Recently, another compatibilization method has been reported through the addition of solid nanoparticles into immiscible polymer blends. [15][16][17][18] The role of the nanoparticles is to get specifically localized at the interface of both polymeric partners, to strengthen the interfacial adhesion between the partners and thus to enhance the overall material performances. [19][20][21] The use of nanoadditives (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Mechanistic insights on nanosilica self-networking inducing ultra-toughness of rubber-modified polylactide-based materials

et al. 2015

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanistic insights on nanosilica self-networking inducing ultra-toughness of rubber-modified polylactide-based materials

et al. 2015

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“…The rigid filler reinforced polymer blends have showed the successful pathway for potential use of these industrial byproducts in polymer industry in terms of cost reduction and improved performance [7,13]. Ma et al [14] and Ashabi et al [15] have reported nano fillers effect on structural properties of polymer blends and its compatibilization effect at the blend interface.…”

Section: Iran Polymer Andmentioning

confidence: 99%

Effect of nanostructured fly ash on mechanical, dynamic mechanical and thermal properties of PP/ABS blends

2015

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“…27 Moreover, the distribution of nanoparticles in binary blends is the subject of most new research in the field. [28][29][30][31] The location of nanofillers in each individual phase of the blends or at the interface can influence the final properties in different ways. Ashabi et al 29 showed by means of XRD, TEM and SEM measurements that in the blend of PA6 with SAN and ABS, the organoclay mostly localizes in the PA phase.…”

Section: Introductionmentioning

confidence: 99%

“…[28][29][30][31] The location of nanofillers in each individual phase of the blends or at the interface can influence the final properties in different ways. Ashabi et al 29 showed by means of XRD, TEM and SEM measurements that in the blend of PA6 with SAN and ABS, the organoclay mostly localizes in the PA phase. Jacques et al studied the morphological and rheological properties of PE/PA/nanoclay blends and reported that when PE is the matrix, the nanoclays are located at the interface, and this leads to the reduction of the PA dispersed phase-size via coalescence inhibition.…”

Section: Introductionmentioning

confidence: 99%

Microcellular foaming of PP/EPDM/organoclay nanocomposites: the effect of the distribution of nanoclay on foam morphology

Keramati

Ghasemi

Karrabi

et al. 2012

Polym J

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In this study, microcellular foams based on polypropylene/ethylene propylene diene monomer/organoclay (PP/EPDM/organoclay) nanocomposites were produced via a batch process using supercritical nitrogen (N 2 ) as the physical blowing agent. The foaming temperature and morphological observation demonstrated that foaming occurred mostly in the PP phase. To evaluate the effect of organoclay distribution on the cell nucleation step and the final foam morphology, the location of the nanofillers in the nanocomposite blend was traced by means of surface energies and Young's equation. The calculated wetting coefficient predicted that the organoclays would have more affinity with PP and would primarily distribute into the PP phase. These results were confirmed by atomic force microscopy (AFM), dynamic mechanical thermal analysis (DMTA) and transmission electron microscopy (TEM). The cell density and average cell sizes are the main foam characteristics that were determined using SEM micrographs, and it was found that these parameters were influenced by the presence of nanoclays. An improved foam morphology was obtained in the nanocomposite samples. INTRODUCTIONBecause polymeric materials are widely used in daily life, the need to reduce the amount of consumed materials has received significant attention. Currently, polymeric foams have become more popular because conventional foams exhibit two important limitations: weak mechanical properties and harmful residues. Hence, the idea of microcellular foaming was invented by Martini et al. 1 at the Massachusetts Institute of Technology to produce lightweight materials without compromising their functional performance. Microcellular foams are defined as foams with cell populations 410 9 cells cm -3 and cell sizes of approximately 10 mm. 2 The tiny size and uniform distribution of bubbles, which are smaller than the critical flaws that already exist in polymers, make microcellular plastics possible for use in daily life applications instead of conventional foams. 3 Microcellular foaming technology has been rapidly developed in the past 2 decades, and microcellular parts have been produced via batch, injection molding and extrusion processes. 4-9 Despite a variety of production methods, the main foaming mechanism is the same. In the first step, the polymer is saturated with an inert gas at high pressure. In the second step, by means of rapid depressurization, the solubility of the dissolved gas decreases, and a super-saturation state occurs. As a result, cell nucleation is thermodynamically favored, and then microcells form through stabilization. 8

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Structural analysis of multicomponent nanoclay-containing polymer blends through simple model systems

Cited by 53 publications

References 31 publications

Mechanistic insights on nanosilica self-networking inducing ultra-toughness of rubber-modified polylactide-based materials

Mechanistic insights on nanosilica self-networking inducing ultra-toughness of rubber-modified polylactide-based materials

Effect of nanostructured fly ash on mechanical, dynamic mechanical and thermal properties of PP/ABS blends

Microcellular foaming of PP/EPDM/organoclay nanocomposites: the effect of the distribution of nanoclay on foam morphology

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