Nano-based composites

Plasticized PLA-based nano-composites were prepared and characterized with polyethylene glycol and MMT. It is reported that the organo-modified MMT-based composites show the possible competition between the polymer matrix and the plasticizer for the intercalation between the alumino-silicate layers (Paul et ah, 2002). 

G. Eda, M. Chhowalla, Graphene-based composite thin films for electronics, Nano Lett., vol. 9, pp. 814-818, 2009. 

The burning lance (or similar firework) reactions can be pictured as occurring in five zones as shown in Figure 10.4. The bottom zone (No. 1) is essentially the preheat zone where the lance composition is being heated to the NaNOs melting point. Based on the thermal conductivity of Mg/NaNOs /binder composition it is possible to estimate the thickness of this zone to be about 1 mm. 

Abstract. IR pyrolysis of PAN and PAN based composites yields ordered graphitelike structure as well as several carbon nanostructures. Metal-carbon nanocomposites, in which the nanosized metal particles were introduced into the structure of carbon matrix in the course of IR pyrolysis of composite-precursor on the basis of PAN and metal (Gd, Pt, Ru, Re) compounds were prepared. The carbon phase of metal-carbon nanocomposites was shown to include different types of nano structured carbon particles. Bamboo-like CNT were observed in the structure of pyrolized at 910 and 1000°C composite-precursor based on PAN and GdCl3. At T=1200°C the solid carbon spheres with diameter in the range of 50-360 nm and octahedral carbon particles with the size in the range of 300-350 nm were observed. These nanostructured particles consist of carbon only or they include Gd nanoparticles incapsulated in carbon shell. IR pyrolysis of composite-precursor based on PAN as well as H2PtCl6 and RuC13 or NH4Re04 (Pt Ru(Re)=10 l) allows the preparation of Pt-Ru and Pt-Re alloys nanoparticles with 2[Pg.577]

N. Hie, R. Hickel, Macro-, micro- and nano-mechanical investigations on silorane and methacrylate-based composites, Dent. Mater. 25 (2009) 810-819. 

Nakagaito, AJSl., Yano, H. The effect of morphological changes from pulp fiber towards nano-scale fibrillated cellulose on the mechanical noperties of high-strength plant fiber based composites. Appl. Phys. A. 78, 547-552 (2004)... 

S. Kalia, B.S. Kaith, 1. Kaur, Cellulose Fibers Bio- and Nano-Polymer Composites Green Chemistry and Technology, Polyolefin Based Natural Fiber Composite (Springer, Heidelberg, Dordrecht, London, New York, 2011)... 

Chen, X. L. and Liu, Y. J. Square representative volume elements for evaluating the effective material properties of carbon nano tube-based composites. Comput Mater Sci., 29, 1-11 (2004). 

Ab initio techniques have been used on a limited basis for the prediction of mechanical properties of polymer based nano structured composites. 

In Technology, Carbon, besides providing the actual challenging nano-materials and benchmark, it also opens the gates towards its relative Silicon element based composite, and hybrids. 

The influence of nano-Al Oj and nano-SiO particles on altering the thermal degradation behavior of the imsaturated polyester-based composite system under various testing environments (Nitrogen and air) is shown in Table 9.6. 

The incorporation of nanoclays and natural fibres in resin systems thus provides reinforcements to resin systems at two scales. The nanoclay enhances the bio-based polymer system in stiffiiess and hygrothermal properties, while the natural fibres provide the main stiffness and strength. In addition, the enhanced barrier properties of the nano-reinforced resin retard moisture from reaching the natural fibres and thereby providing a synergetic effect between scales for an efficient bio-based composite. Hybrid bio-based composites that exploit the synergy between natural fibres (industrial hemp) in a nano-reinforced bio-based polymer can lead to... 

Parvez, K., Yang, S., Hernandez, Y, Winter, A., Turchanin, A., Feng, X., and Mullen, K. (2012) Nitrogen-doped graphene and its iron-based composite as efficient electrocatalysts for oxygen reduction reaction. ACS Nano, 6, 9541-9550. 

Hosseinpourpia, R., Varshoee, A., Soltani, M., Hosseini, R, Tabari H.Z., 2012. Production of waste bio-fibre cement-based composites reinforced with nano-Si02 particles as a substitute for asbestos cement composites. Construction and Building Materials, 31, pp. 105-111. 

It has been reported that chitin-chitosan/nano Ti02-composite scaffolds has wide applications in tissue engineering field [85]. Current research has developed a novel immunoassay strategy based on combination of chitosan and a gold nanoparticle label [86] which explored the unanimous role of chitosan in biochemical research. Further bioinspired mineralization of chitosan-based nanocomplexes encouraged its role in bone tissue engineering applications [87]. Fabrication of chitosan/ZnO... 

While the cost advantage of using nonprecious catalysts has long been apparent, the poor durability of most N-M-C catalysts has presented an obstacle to further development of these otherwise-promising materials. Despite the low durability evinced by metal macrocycles and other earlier formulations of N-M-C catalysts, recently developed catalysts based on an Fe-doped, N-containing carbon nanotube/nano-particle composite have proved remarkably stable in RDE testing [18]. Indeed, the ORR half-wave potential of this N-Fe-CNT/CNP catalyst, which is initially 0.93 V (cf. 0.91 V for... 

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