Özet:

In industrial applications, the aim is to obtain products with a homogeneous structure and the same quality with the mixing process. Mixing homogeneity differs depending on the type of mixer and mixing parameters. In this study, a two-axis cube powder mixer that can be used in polymer composite production was manufactured and tested. In the mixing process, powder PLA (polylactic acid) and carbon fiber powder by 5%, 10% and 15% weight ratios were used. Tensile test specimens were produced through injection molding using the prepared mixtures. The homogeneity of the mixtures was determined by interpreting the behavior of the samples under load and Scanning Electron Microscope (SEM) images. In addition, mixing processes, tensile tests, and SEM analyses were repeated for Turbula, whose efficiency in mixing is known. The efficiency of the cube mixer was determined by comparing the tensile test results and SEM images obtained for both devices. When the SEM images were compared, it was seen that the fiber distribution in samples prepared with a cube mixer, especially at 10% and 15% carbon fiber powder ratios, was more uniform than the samples prepared with Turbula. In addition, when the load-displacement behaviors of the samples were examined, it was concluded that the cube mixer was more successful than Turbula in the production of stable samples in terms of mechanical properties.

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