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Preparation of microplastics with polysulfone and montmorillonite by impregnating aramid and glass fibers
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Researchers prepared composite microplastics by impregnating aramid and glass fiber bundles with polysulfone thermoplastic melts, with and without montmorillonite clay filler, finding a minimum melt viscosity at 1% filler content. The study characterizes how fiber-reinforced microplastic composites form and provides data on torsional rigidity relevant to structural polymer composite applications.
Microplastics have been prepared by impregnating aramid and glass fibers with of polysulfone melts of various viscosities unfilled and filled with montmorillonite. A minimum of the melt viscosity has been found at a montmorillonite content of 1 wt %. Radial-transverse impregnation of multifilament fiber by a thermoplastic melt has been studied by the gravimetric method. Introduction into the polysulfone melt up to 1% of the filler at the initial stage of impregnation have almost no effect on the rate of the process; however, a decrease in it is observed as compared subsequently to impregnation with the melt containing no filler. It has been shown that torsional rigidity of microplastics, along with weight change, characterizes the degree of fiber impregnation.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.