Improvement of the experimental method of research and the strength of the dissipative polyurethane

A method of experimental research strength and dissipative properties the polyurethane is proposed. The technique of the experiment at different temperatures under conditions of dynamic cyclic compression, and tests to determine the elastic and viscous mechanical properties of polyurethane bushings made of different chemical bases. The author presents the results of researches of polyurethane bushings produced from various isocyanates: Toluene diisocyanate 4.4'-Diphenylmethane diisocyanate и 1,5-napththylene diisocyanate. The results of the dependencies viscoelastic and strength characteristics of various types of the polyurethane on temperature were obtained. A comparative analysis of the mechanical behavior of different polyurethanes according to the temperature change is carried out. In the analysis of the mechanical behavior of polyurethane bushings are built temperature chart strength, dynamic modulus of elasticity, loss factor and characteristics of changes in strength, deformation and dissipative properties with decreasing temperature operation.