Geometric phase in a composite system subjected to decoherence

Liu, J.-B.; Li, J.-H.; Lü, Xin-You; Zheng, Anshou

doi:10.1140/epjd/e2007-00212-8

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…For all the samples, the value of G 0 for a given G 00 , increases significantly with increase in organoclay contents. The changes in the slope of the curves of G 0 versus G 00 also indicate that the interaction between TPU matrix and nanofiller increases obviously with the addition of OMMT [52].…”

Section: Dynamic Rheological Propertiesmentioning

confidence: 89%

Effect of organoclay on the morphology, mechanical, thermal, and rheological properties of organophilic montmorillonite nanoclay based thermoplastic polyurethane nanocomposites prepared by melt blending

Barick

Tripathy

2009

Polymer Engineering & Sci

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Polymer nanocomposites based on the thermoplastic polyurethane (TPU) and organically modified montmorillonite (OMMT) was prepared by melt intercalation technique using a laboratory internal batch mixer followed by compression molding. Varying amount of organically modified nanoclays (1, 3, 5, 7, and 9 wt%) was added to the TPU matrix to examine the influence of organoclay on nanophase morphology and structure–property relationships. The interaction between TPU matrix and nanofiller was studied by infrared spectroscopy. The morphology of nanocomposites was studied by X‐ray diffraction, transmission electron microscopy, and atomic force microscopy that shows melt mixing by a batch mixer is an effective method for dispersing OMMT throughout the TPU matrix. Thermogravimetric analysis revealed that incorporation of organoclay enhances the thermal stability of the nanocomposites significantly. Differential scanning calorimetry was employed to measure the melting point and glass transition temperature (Tg) of soft segments. The reinforcing effect of the organoclay was determined by dynamic mechanical analysis and physico–mechanical testing. The effects of nanoclay concentration and processing parameters on the dynamic viscoelastic properties of the nanocomposites were studied by a rubber process analyzer using frequency sweep. A significant increase in the viscosity and storage modulus of the nanocomposites was found with the increasing clay content. POLYM. ENG. SCI., 2010. © 2009 Society of Plastics Engineers

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Section: Dynamic Rheological Propertiesmentioning

confidence: 89%

Effect of organoclay on the morphology, mechanical, thermal, and rheological properties of organophilic montmorillonite nanoclay based thermoplastic polyurethane nanocomposites prepared by melt blending

Barick

Tripathy

2009

Polymer Engineering & Sci

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“…This effect is continued up to 5 wt % HNT loading but after that it is completely diminished due to the strong shear thinning behavior resulted from the aggregation of HNTs within the PCL matrix. 34 PCL/HNT nanocomposites show more pronounced shear thinning behavior as compared to neat PCL. This shear thinning behavior indicates good processability of the nanocomposite.…”

Section: Rheological Propertiesmentioning

confidence: 93%

Thermal, mechanical, and rheological properties of poly(ε‐caprolactone)/halloysite nanotube nanocomposites

Lee

Chang

2012

J of Applied Polymer Sci

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Naturally available halloysite nanotubes (HNTs) with hollow nanotubular structures were used as reinforcement in poly(e-caprolactone) (PCL). The PCL/HNT nanocomposites were prepared by melt mixing the polymer with as-received HNTs up to 10 wt % in an internal batch mixer. Transmission electron microscopy analysis indicated that the HNTs were dispersed uniformly on the nanoscale throughout the PCL matrix. Differential scanning calorimeter studies revealed that the PCL crystallinity was decreased in the nanocomposites, and the HNTs dispersed in the PCL matrix led to an increase in the non-isothermal crystallization temperature of the PCL. Tensile and dynamic mechanical tests showed great enhancement in strength and stiffness at low HNT content, while still maintaining the ductility of the PCL. The glass transition temperature (T g ) of the pristine PCL was substantially increased with increase in filler loading, which indicates good reinforcing effect imparted by the addition of HNT. Melt rheological studies revealed that the nanocomposites exhibited strong shear thinning behavior, and a percolated network of HNT particles was formed.

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Geometric phase in a composite system subjected to decoherence

Cited by 2 publications

References 30 publications

Effect of organoclay on the morphology, mechanical, thermal, and rheological properties of organophilic montmorillonite nanoclay based thermoplastic polyurethane nanocomposites prepared by melt blending

Effect of organoclay on the morphology, mechanical, thermal, and rheological properties of organophilic montmorillonite nanoclay based thermoplastic polyurethane nanocomposites prepared by melt blending

Thermal, mechanical, and rheological properties of poly(ε‐caprolactone)/halloysite nanotube nanocomposites

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