In order to prepare composite magnetic separating materials, this test use PEI to wrap magnetic powder, and then cure it by chloromethylthioirane under lab conditions.

• 利用PEI预聚体包复磁粉,环硫氯丙烷作为固化剂进行扩散固化,在实验室条件下制备出复合磁性分离材料。