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摘要
The atmospheric pressure uniform discharge (APUD) from a 3 mm air gap was generated in this paper. The atmospheric pressure uniform discharge (APUD) at 3 mm air gap is generated in this paper. The discharge characteristics of APUD are compared with that of the uniformly distributed filamentary discharge (UDFD) using the electrode configuration of dielectric barrier discharge (DBD). The surface hydrophilicity of PP nonwovens is tested by the APUD and UDFD respectively. It is found that a homogeneous APUD from a 3 mm air gap could be transited and obtained under specific conditions from UDFD. The PP nonwovens is destroyed when treated by UDFD, but not by APUD. The contact angle of the static distilled water drop on the treated nonwovend changes from 120° to 60° by APUD.
