▎ 摘　　要

NOVELTY - A foamed polymer wave-absorbing material with high through hole rate and high hole-closing rate comprises 25-70% polymer, 25-70% water-soluble polymer, 5-20% electromagnetic wave absorbent, 5-10% foaming nucleating agent and 5-35% other auxiliary agent. USE - Foamed polymer wave-absorbing material with high through hole rate and high hole-closing rate. ADVANTAGE - The product has opening structure and closed-cell foam supporting structure which is good for light weight, increases reflection absorption times of electromagnetic wave which is good for absorbing performance, is made of bead-shaped foaming polymer material to prepare wave absorbing body and good for adjusting wave-absorbing shape structure, combines polymer blending modified technology and kettle pressure foaming process, busies existing conventional device to finish the preparation, so as to reduce the preparation cost of the material, improving the applicability of the material, so that the use of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing foamed polymer wave-absorbing material with high through hole rate and high hole-closing rate comprising uniformly mixing polymer, water-soluble polymer, electromagnetic wave absorbent, foaming nucleating agent and other auxiliary agent, putting into extruder, extruding and granulating, adding with dispersing medium, dispersant and surfactant into foaming reaction kettle, continuously introducing foaming agent and heating and pressurizing to foaming reaction kettle, opening reaction kettle discharging valve for instantaneously releasing pressure when reaching set temperature and pressure, pre-pressing by pre-pressing tank and steam compression molding. DESCRIPTION OF DRAWING(S) - Weight (S2)