Mechanical Properties of Polyurethane/Poly (Methyl Methacrylate-co-Dimethyl Acrylic Acid Glycol Ester) Interpenetrating Polymer Network Modified Wabste Rubber Powder System

The polyurethane/poly (methyl methacrylate-co-dimethyl acrylic acid glycol ester) modified waste rubber powder mixed system was prepared.Mechanical properties of the system were tested.The results indicate that the tensile strength,elongation at break,permanent set and hardness of the system were the best with the benzoyl peroxide amount of 0.3wt%-0.5wt%,the dimethyl acrylic acid glycol ester amount of 2wt%,the methyl methacrylate amount of 60wt% having the waste rubber powder diameter of 180-250 μm for the permeation time of 30 min,which were significantly superior to those of the polyurethane/waste rubber powder system without public network.