Authors:S. Reyes-de Vaaben, A. Aguilar, F. Avalos, and L. Ramos-de Valle
The effect of four nucleating agents on the crystallization of isotactic polypropylene (iPP) was studied by differential scanning
calorimetry (DSC) under isothermal and non-isothermal conditions. The nucleating agents are: carbon nanofibers (CNF), carbon
nanotubes (CNT), lithium benzoate and dimethyl-benzylidene sorbitol.
Avramișs model is used to analyze the isothermal crystallization kinetics of iPP.
Based on the increase in crystallization temperature (Tc) and the decrease in half-life time (τ½) for crystallization, the most efficient nucleating agents are the CNF and CNT, at concentrations as low as 0.001 mass%.
Sorbitol and lithium benzoate show to be less efficient, while the sorbitol needs to be present at concentrations above 0.05
mass% to even act as nucleating agent.
The carbonnanofibers not only have a low-density, high modulus, high strength and high electrical conductivity and thermal stability, and other characteristics, but also have a very small number of defects, aspect
Authors:Qiang Wu, Jianwen Bao, Chuck Zhang, Richard Liang, and Ben Wang
Since Beyer initiated the use of carbon nanotubes in fire retardant polymeric materials [ 1 ], carbon nanoadditives, including carbon nanotubes, carbonnanofibers and carbon black, have been studied systematically
.2%) of freezing of cyclohexane was realized experimentally by introducing 2 wt% CuO nanoparticles. Cui et al. [ 18 ] obtained that both carbonnanofiber and carbon nanotube could improve the thermal conductivities of soy wax and paraffin wax. Liu et al
Authors:Mohamed Triki, Anton Dafinov, Jordi Llorca, and Francisco Medina
catalytic properties of carbonnanofiber-supported Pt, Pd, Ru monometallic particles in the CWAO of phenol in a continuous-flow trickle-bed reactor. p -Hydroxybenzoic acid ( p -HBZ) was taken as a model molecule representative of phenolic pollutants which
Authors:Wan-Cheng Tan, Radzali Othman, Akihiko Matsumoto, and Fei-Yee Yeoh
Im , JS , Park , SJ , Kim , TJ , Kim , YH , Lee , YS 2008 The study of controlling pore size on electrospun carbonnanofibers for hydrogen adsorption . J Colloid Interface Sci 318 1 42 – 49 10.1016/j.jcis.2007