Abstract
In this study, we modified polypropylene (PP) by using melt-blending hollow silica (HSiO2) with it and to form HSiO2/PP composites. The composites were characterized by mechanical properties, X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FTIR). In order to investigate the effect of nanofiller to the barrier property of water vapor, the water vapor transmission rate of PP and HSiO2/PP composites has been tested. The study found that the addition of HSiO2 did not change the crystal structure of the matrix material and there was no chemical reaction. However, the tensile strength of the composite is improved, and the water vapor barrier performance were also improved. When the content of HSiO2 is 0.9%, the tensile strength of the composite is the highest and the water vapor resistance is the best.
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