Abstract
In this paper, polypropylene (PP) melt blown non-woven fabric is treated by atmospheric pressure N2 or N2/O2 dielectric barrier discharge (DBD) plasma. The variation of the surface hydrophilicity of PP sample is experimentally investigated by surface water contact angle, Fourier transform infrared reflectance spectroscopy (FTIR-ATR). The results show that the hydrophilicity of PP sample is considerably improved as long as the very short plasma treatment time (several seconds). However, the treatment effect of atmospheric N2/O2 plasma is worse than that of atmospheric N2 plasma early in the processing (0-7s). But the treatment effect of atmospheric N2/O2 plasma obtains improvement increasing the treatment time (>7s).
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