Polyurethane material surface-modified by polyethylene glycol and derivatives thereof as well as preparation method and application thereof

The invention discloses a polyurethane material surface-modified by polyethylene glycol and derivatives thereof as well as a preparation method and application thereof. The preparation method of the surface-modified polyurethane material comprises the steps of: at first, dissolving isocyanate in a solvent prepared from orthodichlorobenzene and methylbenzene to obtain a solution A; dissolving polyethylene glycol or derivatives of the polyethylene glycol in the solvent prepared from the orthodichlorobenzene and the methylbenzene to obtain a solution B; immersing a polyurethane material in the solution A, performing microwave radiation reaction to obtain a treated polyurethane material, then immersing the treated polyurethane material in the solution B, and performing microwave radiation reaction again to obtain the polyurethane material surface-modified by the polyethylene glycol and the derivatives thereof. By using the method, the reaction time is remarkably shortened, the energy consumption for production is