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Carbon-bonded carbon fiber composites (CBCFs) were widely used as thermal insulation materials due to their light weight and ultra-low thermal conductivity. The CBCFs with density of about 0.256 g/cm3 were tested in compression with the modulus and strength evaluated. The in-plane and out-of-plane tests revealed obvious anisotropic behavior of the material, which could be attributed to the fibers...
A chitosan (CS)-grafted multiwalled carbon nanotubes (MWCNT) composite (CS-MWCNT) was prepared via covalently grafting a biocompatible polymer CS onto the surfaces of MWCNT and was characterized by Fourier transform infrared spectroscopy (FTIR), ultraviolet–visible spectroscopy (UV–vis), and transmission electron microscopy (TEM). The interaction between MWCNT and CS was investigated and explained...
Vapor grown carbon fibers have been prepared without any catalyst by microwave pyrolysis chemical vapor deposition using CH 4 as source gas and N 2 as carrier gas at 1050–1150°C. Scanning electron microscopy images reveal that vapor grown carbon fibers are made up of sub-fibers which are hexagonal and layer-like carbon. Polarized light images indicate that sub-fibers are formed by...
Carbon nanobelts, highly branched carbon nanotubes (CNTs) and carbon nanorods (CNRs) were synthesized by the catalytic pyrolysis of acetylene using Fe-catalyst at different temperatures. The 3D double branched K junction and various 2D single branched Y, L, T junctions on CNTs and CNRs were characterized by SEM, TEM, and Raman spectroscopy. The bamboo shaped hollow interior of the K junction indicated...
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