Viscosity polypropylene nanocomposites

Zhirikova, Z. M. Kozlov, G. V Aloev, V. Z. TTie fractal model of melt viscosity of nanocomposites polypropylene-carbon nanotubes. Thermophysics of High Temperatures, 2012, 50(6), 785-788. 

Dynamic viscosity vs. complex modulus G of the nanocomposite melts and the silicate-free melts for polypropylene nanocomposites NCI and NC2. 

Kozlov, G. V Shogenov, V. N. The fractal model of nanocomposites polypropylene/ calcium carbonate melt viscosity. Nanotechnologies. Science and Industry, 2011, 6, 39 4. 

Kozlov, G. V Zhirikova, Z. M Aloev V. Z. Zaikov, G. E. TTie liactal model of nanocomposites polypropylene/carbon nanotubes melt viscosity. In book Nanostructured Rolymers and Nanochemistry Research Rrogress. Ed. Haghi, K. Kubica, S. Zaikov, G. Torun, REKROL, 2012,44-51. 

Polymer/fullerene [Ceol nanocomposites can be considered environmentally friendly alternatives to some traditional flame retardants. The presence of Ceo can markedly delay thermal oxidative degradation and reduce the flammability of polypropylene at very low loadings. It can decrease the heat release rate of polymeric materials by trapping the free radicals created through thermal degradation and combustion, and subsequently forming three-dimensional gelled networks. This network can increase the melt viscosity and consequently slow down combustion. Furthermore, the incorporation of Qo does not affect the physical properties of the polymer. 

In situ polymerisation of the polymer matrix is an attractive method of preparing graphene-based composites although often solvents are used to reduce the viscosity of the dispersions. For example, intercalative polymerisation of methyl methacrylate and epoxy resins has been achieved with graphene oxide to produce nanocomposites with enhanced properties. It has also been possible to use in situ polymerization produce polyethylene- and polypropylene-matrix graphene oxide nanocomposites. The technique of grafting poly(methyl methacrylate) chains onto graphene oxide has also been employed to make the filler compatible with the polymer matrix. " ... 

Dong Y and Bhattacharyya D (2008) Effects of clay type, clay/compatibiliser content and matrix viscosity on the mechanical properties of polypropylene/organoclay nanocomposites, Composites A 39 1177-1191. 

Kim K.-N., Kim H. and Lee J.-W., Effect of interlayer structure, matrix viscosity, and composition of a functionalized polymer on the phase structure of polypropylene-montmorillonite nanocomposites , Polym Eng Sci, 2001, 41, 1963-1969. 

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