Magnetic plastic composition and preparation method thereof

The invention discloses a magnetic plastic composition and a preparation method thereof. The magnetic plastic composition is a magnetic composite material prepared by compounding rare earth magnetic powder, a nanocrystalline composite exchange coupling permanent magnet material and thermoplastic plastic. Compared with a magnet, the composite material is easy to process and form, can be processed by adopting a general processing method (such as injection, mould pressing, extrusion and the like) for general plastics, can be processed into a product with high dimensional precision, a thin wall and a complex shape, and can be used for forming a product with an insert, so that miniaturization, light weight, precision and high performance of electromagnetic equipment are realized. 本发明公开了一种磁性塑料组合物及其制备方法，采用稀土类磁粉、纳米晶复合交换藕合永磁材料与热塑性塑料复合制成磁性复合材料。该复合材料与磁铁相比,具有易于加工成型而且它可采用一般塑料通用的加工方法(如注射、模压、挤出等)进行加工，可加工成尺寸精度高、薄壁、复杂形状的制品，可成型带嵌件制品，实现电磁设备的小型化、轻量化、精密化和高性能化。