Composite material as well as preparation method and application thereof

The invention discloses a composite material as well as a preparation method and application thereof. The composite material disclosed by the invention is wax nanoparticles coated with silicon dioxide. The invention also provides powdered ink which comprises an additive, and the additive comprises the composite material. The powdered ink provided by the invention is simple in preparation process and easy to realize industrial production; when the composite material is used as an internal additive, the problem of knife sticking existing in physical-method colored powdered ink can be solved, and the glossiness and the storage stability of a printed product are improved; when the composite material is used as an external additive, the composite material can replace medium and large particle silicon, so that the durability of the powdered ink is ensured, the electric quantity and the page yield can be improved, and the production cost is reduced. 本发明公开了一种复合材料及其制备方法和应用。本发明所述的复合材料为二氧化硅包覆的蜡纳米粒子。本发明还提供了一种墨粉，其中包括添加剂，所