On the basis of obtaining the dispersion system of metatitanic acid,a urea-formaldehyde resin layer was coated in the surface of metatitanic acid by in-situ polymerization. The morphology,composition and structure of compound particles were characterized by SEM,XPS and XRD; A contrasting erosion tube test was made to test its ablation. The results show that the prepared metatitannic acid/urea-formaldehyde particle has core-shell structure and the particle uniformity has been improved. Compared to inhibitor ...