Based on biological inspiration, we proposed a simple method for preparing anti-corrosion and super-hydrophobic coating. The modified TiO 2 compounded ZnO and epoxy resin were prepared by one-pot method. The surface morphology, resistance, super-hydrophobicity, repairability, impedance, wear resistance, etc. of the prepared material were performed by SEM, FTIR, electrochemical workstation, contact angle, rolling angle measuring instrument and simple homemade devices. As a result, it was found that the coating had full-thickness hydrophobicity, its WCA was up to 155.6°, and its repairability was good. Even in a harsh environment, it still had a long working life. At the same time, it had been found that the key to prolonging the anti-corrosion life of the coating lies in the reduction of the volume of the free polymer, the degree of cross-linked curing of the metal-polymer interior and its bonding with the metal substrate.
This paper reports on the anti-thermal aging ability enhanced by nanoparticles for polyethylene based nanocomposites. Nanocomposites with concentration of 1 wt% were prepared by using silicon dioxide (SiO
2
), zinc oxide (ZnO) and magnesium oxide (MgO) nanoparticles. Fourier-transform infrared spectra showed that the low-density polyethylene (LDPE)/MgO nanocomposites had the best anti-thermal aging ability in comparison with the LDPE/SiO
2
nanocomposites, which had the worst anti-thermal aging ability. Subsequently the ability of nanocomposites to ensure the electrical properties was examined by dielectric properties and space charge distribution. The results show that LDPE/MgO and LDPE/ZnO nanocomposites retained the value and the relaxation peaks of permittivity to a certain extent after thermal aging. All of the nanocomposites presented the ability for suppression of space charge accumulation after thermal aging compared with neat LDPE with the observation of obvious homocharges accumulated near electrodes. We find that the interface between nanoparticles and matrix may be the reason for the anti-thermal aging ability exhibited by the nanocomposites.
危险品化学品经营许可证（带存储）