A New Method for the Synthesis of Alumina Nanotubes from Polymer Composite Materials

Abstract

A new approach for the synthesis of Al2O3 nanotube has been performed by the calcination of polymer composite materials fabricated via the simultaneous curing of furfuryl alcohol and the polymerization of aluminum isopropoxide. At first, mixture of furfuryl alcohol and aluminum isopropoxide was prepared and heated at 90 °C for 240 h. During this process, furfuryl alcohol is cured to release H2O, and the polymerization of aluminum isopropoxide is promoted gradually by the generated H2O. Al2O3 nanotube was obtained by the calcination of the polymer composite materials at 1300 °C in argon for 2 h followed by the carbon elimination at 700 °C for 120 min in atmospheric conditions. The nanotubes are typically about 1−2 μm in length; the outer diameter and wall thickness are about 30−70, and 10 nm, respectively, for most of the nanotubes.

Competitive and synergistic effects between excimer VUV radiation and O radicals on the etching mechanisms of polyethylene and fluoropolymer surfaces treated by an atmospheric He–O2post-discharge

“…Polymers are ubiquitous and play an essential role in everyday life due to the tremendous diversity of their properties and to successful research aimed at manufacturing products with desired mechanical and chemical properties, tailored for each specific use. Therein, polymers have been investigated as components of composite materials, as parts of car bodies, sport equipment and many other household applications [1][2][3]. Recent advances have also been performed in biopolymers research to produce biodegradable and especially compostable packages, so they can act as fertilizers and soil conditioners [4].…”

Robust super‐hydrophobic ceramic coating on alumina with water and dirt repelling properties

“…The roughness can be enhanced by constructing hierarchical micro‐nano structure on the surface. For alumina, a variety of micro/nano structures including fibers, rods, tubes, wires, and sheets have been synthesized, which could be converted into super‐hydrophobic by modification with low‐surface energy materials …”

“…The roughness can be enhanced by constructing hierarchical micro-nano structure on the surface. For alumina, a variety of micro/nano structures including fibers, 23,24 rods, 25 tubes, 26 wires, 27 and sheets 2,28,29 have been synthesized, which could be converted into super-hydrophobic by modification with low-surface energy materials. 30 In this paper, we report for the first time the all-ceramic super-hydrophobic surface by modifying ceramic substrates with a polymer-derived ceramic coating.…”