Carbon nanotubes thermal properties

Motoo, F., Z. Xing, X. Huaqing, A. Hiroki, T. Koji, I. Tatsuya, A. Hidekazu, and S. Tetsuo (2005). Measurements of thermal conductivity of individual carbon nanotubes. Thermophysical Properties 26 26-28. 

Poly (lactic acid)(PLA), carbon nanotube, eleetrical property, thermal property... 

CNTs can enhance the thermal properties of CNT-polymer nanocomposites. The reinforcing function is closely associated with the amount and alignment of CNTs in the composites. Well-dispersed and long-term stable carbon nanotubes/ polymer composites own higher modulus and better thermal property as well as better electronic conductivity (Valter et al., 2002 Biercuk et al., 2002). Both SWNT and MWNT can improve the thermal stability and thermal conductivity of polymer, the polymer-CNT composites can be used for fabricating resistant-heat materials. 

Enhancement of thermal and electrical properties of carbon nanotube polymer composites by magnetic field processing. J. Appl. Phys. 94 6034-6039. 

Hone J, Llaguno MC, Biercuk MJ, Johnson AT, Batlogg B, Benes Z, Fischer JE (2002). Thermal properties of carbon nanotubes and nanotube-based materials. Applied Physcis A-Materials Science Processing 74 339-343. 

Kashiwagi T, Grulke E, Hilding J, Harris R, Awad W, Douglas J (2002). Thermal degradation and flammability properties of poly(propylene)/carbon nanotube composites. Macromol. Rapid Commun. 23 761-765. 

Velasco-Santos C, Marty nez-Hema ndez AL, Fisher FT, Ruotf R, Castano V M (2003b). Improvement of thermal and mechanical properties of carbon nanotube composites through chemical functionalization. Chem. Mater. 15 4470 4475. 

Dresselhaus MS, Dresselhaus G, Charlier JC, Hernandez E (2004) Electronic, thermal and mechanical properties of carbon nanotubes. Philosophical Transactions of the Royal Society of London Series A-Mathematical Physical and Engineering Sciences 362 2065-2098. 

Maksimenko SA, Slepyan GY, Nemilentsau AM, Shuba MV (2008) Carbon nanotube antenna far-field, near-field and thermal-noise properties. Physica E Low-dimensional Systems and Nanostructures 40 2360-2364. 

M. M. S. Fakhrabadi, A. Allahverdizadeh, V. Norouzifard, B. Dadashzadeh, Effects of boron doping on mechanical properties and thermal conductivities of carbon nanotubes., Solid State Communications, vol. 152, pp. 1973-1979, 2012. 

For applications where only mechanical properties are relevant, it is often sufficient to use resins for the filling and we end up with carbon-reinforced polymer structures. Such materials [23] can be soft, like the family of poly-butadiene materials leading to rubber or tires. The transport properties of the carbon fibers lead to some limited improvement of the transport properties of the polymer. If carbon nanotubes with their extensive propensity of percolation are used [24], then a compromise between mechanical reinforcement and improvement of electrical and thermal stability is possible provided one solves the severe challenge of homogeneous mixing of binder and filler phases. For the macroscopic carbon fibers this is less of a problem, in particular when advanced techniques of vacuum infiltration of the fluid resin precursor and suitable chemical functionalization of the carbon fiber are applied. 

Apart from the promising electrochemical properties that will be exhaustively discussed through this chapter, carbon nanotubes have become a hot research topic due to their outstanding electronic, mechanical, thermal, optical and chemical properties and their biocompatibility. Near- and long-term innovative applications can be foreseen including nanoelectronic and nanoelectromechanical devices, held emitters, probes, sensors and actuators as well as novel materials for mechanical reinforcement, fuel cells, batteries, energy storage, (bio)chemical separation, purification and catalysis [20]. 

The incorporation of carbon nanotubes (CNT)s into polymer matrices has resulted in composites that exhibit increased thermal stability, modulus, strength, electrical and optical properties (33-35). Several investigations have concluded that carbon nanotubes can also act as a nucleating agents for polymer crystallization (36,37). 

Carbon nanotubes (CNTs) have emerged as one of the most interesting nanomaterials during the past decade [212], The unique structural, mechanical, electrical, and thermal properties [213, 214] of these long hollow cylinders, along... 

As carbon nanotubes present exceptional mechanical, superior thermal and electrical properties in general, by using them as reinforcing elements there are high expectations for improvement of quality of nano- and microcomposites [14-18]. As shown from earlier measurements, through carbon nanotube addition a 15-37% improvement of mechanical properties (elastic modulus and strength) can be achieved in comparison to other carbon-filled samples [19]. 

---