Homogeneous wave-absorbing polymethacrylimide foam as well as preparation method and application thereof

The invention discloses homogeneous wave-absorbing polymethacrylimide foam as well as a preparation method and application thereof. The homogeneous wave-absorbing polymethacrylimide foam is prepared from the following raw materials: a monomer, acrylamide, an absorbent, a cross-linking agent, an initiator, a foaming agent, an auxiliary A and an auxiliary B, relative to 100 parts by weight of the monomer, the content of acrylamide is 1-2 parts by weight; the content of the absorbent is 1-5 parts by weight; the content of the initiator is 1-2 parts by weight; the content of the foaming agent is 1-10 parts by weight; the content of the assistant A is 1-5 parts by weight; and the content of the auxiliary agent B is 5-20 parts by weight. Through the synergistic effect of the auxiliary A and the auxiliary B, the prepared homogeneous wave-absorbing polymethacrylimide foam has relatively good wave-absorbing performance and also has high mechanical properties. 本发明公开了一种均质吸波聚甲基丙烯酰亚胺泡沫及其制备方法和应用，其包括如下制备原料：单体、丙烯酰胺、吸收剂、交联剂、引