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Open Access Article
1 - A review of factors influencing the rheological behavior of highly filled composite
Ali RiazatiThe highly filled composite consists of two polymer matrix components and different fillers with a weight fraction of more than 30% and are widely used in defense systems and aerospace engines. Each of the metal powders can affect the rheological behavior of highly fill MoreThe highly filled composite consists of two polymer matrix components and different fillers with a weight fraction of more than 30% and are widely used in defense systems and aerospace engines. Each of the metal powders can affect the rheological behavior of highly filled composites according to their properties, type of granulation, type of particle size, and morphology. The investigation of three types of metal powders, aluminum, magnesium and boron, which are the most used in highly filled composites, has been done in this study. The results of the investigation of the rheological behavior showed that with the increase in the size of solid particles, the content of metal powders, as well as the cross-linking factor, the viscosity and yield stress of the slurry of composite materials increases and causes the flow properties of the slurry to deteriorate and its service life to be shortened. become wet The increase in viscosity is due to smaller solid particles and the increase in molecular weight and the formation of transverse connections in the structure of the prepolymer. The viscosity of the slurry of composite materials decreases with the increase of the shearing speed and shows non-Newtonian pseudo-plastic behavior, and its value depends on the speed and time of the applied shearing force. Combining boron metal powder with magnesium or aluminum powder can greatly improve the rheological behavior of the highly filled composite. Manuscript profile
List of Articles Highly filled composite
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