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>Pultruded fiber‐reinforced poly(methyl methacrylate) composites. I. Effect of processing parameters on mechanical properties
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Pultruded fiber‐reinforced poly(methyl methacrylate) composites. I. Effect of processing parameters on mechanical properties
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机译：Pultruded fiber‐reinforced poly(methyl methacrylate) composites. I. Effect of processing parameters on mechanical properties
AbstractA feasibility study of pultrusion of fiber‐reinforced thermoplastic PMMA composite has been conducted using a proprietary method. Effect of processing parameters, preparation of methyl methacrylate (MMA) prepolymer on the mechanical properties (tensile, flexural strength and modulus, impact strength, etc.) of fiber‐reinforced PMMA composites by pultrusion has been studied. Processing parameters investigated included pulling rate, die temperature, postcure time and temperature, and filler content. From the study of Brookfield viscometer and FTIR spectrum the processing conditions can be defined. It was found from SEM photographs that the wetting out of fibers by PMMA resin was complete, and the fiber bundles were distributed evenly in the PMMA matrix. From the study of1H‐NMR, GPC, and Brookfield viscometer, the conversion, molecular weight, and viscosity of MMA prepolymer data were obtained. From the DSC diagram, molecular weight measurement, and the rule of polymerization rate, the optimum die temperature was determined. It was found that the mechanical properties increase with increasing filler content and postcure temperature, and with decreasing die temperature and pulling
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