Abstract
Polypropylene fiber, stearic acid-polyvinyl alcohol emulsion and FGD gypsum were chosen to prepare fiber reinforced FGD gypsum composites by a certain process. The effects of polypropylene fiber and stearic acid-polyvinyl alcohol emulsion on the composites were observed, and their action mechanisms were also analyzed with physical molds of waterproofing mechanism established. QUANTA FEG 250 scanning electron microscope was used to observe the microcosmic morphology of the samples. The investigations indicated that the mechanical property of fiber reinforced FGD gypsum composites was enhanced by admixture with polypropylene fiber while the water-resistant property was improved by adding the organic emulsion which could make the strength loss induced.
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