ВПЛИВ ОСНОВНИХ ТЕХНОЛОГІЧНИХ ПАРАМЕТРІВ НА СТАБІЛЬНІСТЬ ПРОЦЕСУ ЛИТТЯ ПІД ТИСКОМ МУЛЬТИКОМПОНЕНТНИХ ВІДХОДІВ ПОЛІМЕРНИХ КОМПОЗИЦІЙ

Abstract

In the work, a comparative analysis of the main technological parameters, as well as the stability of the injection molding process of the primary glass-filled (30%) polyamide 6 and the secondary composition of the mixture of glass-filled polyamide 6/polycarbonate was carried out.Non-standard multi-component car parts obtained on the hybrid casting machine "ENGEL" were used as the starting ma-terial. The black element of the part is cast from glass-filled polyamide (PA6GF30), the white element -from polycarbonate (PC). Grinding of parts was carried out by a mechanical method on a "Rapid 200" shredder. After mechanical processing, a mixture ofparticles was obtained from unseparated PA6GF30/RS components in the ratio of 90/10 wt.%. The granulate was used to cast the black component of the part without adding the original polymer composition on the "ENGEL" casting machine. Statistical data for determining the stability of the process and the machine were obtained using the Q Table software module. The results of the research were processed by the 6SIGMA method to obtain the appropriate indicators of process stability.It is shown that the use of the secondary mixture requiresan increase in the drying time and temperature, the parameter of the melt cushion in comparison with the primary material. At the same time, other parameters of the process did not undergo significant changes. At the same time, the stability of the casting process when using the secondary composition did not undergo statistically significant changes compared to the primary material and is within the permissible limits. The obtained resultsprove the possibility of reprocessing multicomponent waste polymer compositions by injection molding. This can reduce the cost of production by reducing the cost of raw materials, reduce the share of unprocessed polymer waste, and have a positive impact on the ecological aspects of the environment.