Experimental-theoretical technique for design antifriction polyetheretherketone composites of optimum composition

Abstract

New composites based on polyetheretherketone (PEEK) resin with specified physical-mechanical properties are developed with the use of experimental data on the dependence of effective properties (volumetric wear, modulus of elasticity, value of elongation at break, etc.) versus the values of control parameters. The loading (content) of short (milled) carbon fibers (200 μm) and PTFE particles (5–15 μm) are used as the control parameters. In order to attain the necessary number of reference points a numerical technique is employed that ensures their supplementing up to a regular array with the use of linear interpolation. The obtained dependences of the effective properties versus the control parameters are constructed in the form of surfaces and corresponding isolines. In doing so, a region with the required range of effective properties values is allocated at the isolines graphs. Then, the variety regions are overlapped, whereas their intersection determines the range of the control parameters that provides the effective characteristics to take the required values.