▎ 摘　　要

NOVELTY - Preparing polyurethane absorbing materials, comprises (i) choosing reactant including polyol, absorbing agent particles, diisocyanate, reinforcing agents, organometallic catalysts, promoter and stabilizing agent; (ii) drying polyol; (iii) stirring uniformly iron plating graphene particles and reinforcing agents, adding diisocyanate and organic metal catalyst, heating to 80-90 degrees C, stirring; and (iv) adding promoter and stabilizing agent, stirring at 80-100 degrees C while reacting mixture for 20 to 30 minutes, pouring reaction mixture into abrasive up to thickness of 2 mm and curing. USE - The polyurethane absorbing materials is useful in anti-interference electrical meter box absorption layer (all claimed). ADVANTAGE - The polyurethane absorbing materials can be optimized by binding with sandwich absorbing layer under environmental conditions, so as to meet the absorption band and light weight requirements of the meter. DETAILED DESCRIPTION - Preparing polyurethane absorbing materials, comprises (i) choosing reactant including polyol, absorbing agent particles, diisocyanate, reinforcing agents, organometallic catalysts, promoter and stabilizing agent; (ii) drying polyol for 30-60 minutes at 90-130 degrees C under certain degree of vacuum; (iii) stirring uniformly iron plating graphene particles and reinforcing agents, adding diisocyanate and organic metal catalyst, heating to 80-90 degrees C, stirring while reacting for 10-20 minutes; and (iv) adding promoter and stabilizing agent, uniformly stirring again at 80-100 degrees C while reacting mixture for 20 to 30 minutes, pouring reaction mixture into abrasive up to thickness of 2 mm, curing for 3-4 days and taking out. An INDEPENDENT CLAIM is also included for use of polyurethane absorbing material in useful in anti-interference electrical meter box absorption layer, comprising preparing polyurethane layer using polyurethane polyurethane absorbing material, and obtaining electromagnetic wave absorbing layer, and binding electromagnetic wave absorbing layer with the sandwich absorber installed in electrical meter box interference based on requirements.