The Study Of Superficial Modification Of Titanium By High-temperature Ball Milling Treatment

Adding titanium (Ti) to the epoxy coating could improve the properties of coatingsubstantially because of its excellent corrosion resistance. In order to graft Ti onto epoxy, thenanocrystallization and superficial modification of Ti has attracted considerable attention.In this work, micron Ti refined and the superficial grafting modification with Ti havebeen investigated via high-temperature ball milling. The sizes, structure, superficial tensionand density of the as-prepared products were well characterized by means of Particle size testsystem, Fourier transform infared spectroscopy, Water contact angle and Sedimentationexperiments, respectively. The optimal conditions of was obtained under variousexperimental conditions allowed for a good appreciation of the effects. Furthermore, theproperties of anticorrosive coating prepared by dispersing the modification products intopaint was thoroughly investigated by means of water absorption rate analysis,electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM), anda possible anticorrosive mechanism was proposed.The results indicate that the Ti refined and superficial modification with Ti can berealized in a manner by high-temperature ball milling. The optimum modificationtemperature (140℃) and ratio(1:3) was obtained by altering the reaction temperature and theratio of Ti added to the Epoxy Resin. The results of FTIR, TEM and TGA indicated that Tiwas actually grafted onto Epoxy Resin. According to the results of water contact angle andsedimentation experiments testing, the hydrophily of the products became worse while thecompatibility with organic solvent turned to be better. The results also show that thecorrosion-resistance decreased with the increasing amount of modification products preparedin the optimum conditions. At the adding amount of1%，the corrosion-resistance is best. Theadding amount have no singnificant influence on the products’ corrosion-resistance when theTi haven’t been modified effectively. The SEM results of the coating section indicate that thebetter interface compatibility was obtained with the adding amount of products prepared inthe optimum condition being1%when the Ti powder is well dispersed.