In this study, the electrification voltage of electrostatics for silicone rubber sample(4 cm × 4 cm × 0.103 cm) following immersion with contaminants of 2 ml, 5 ml, 10 ml for six hours has been measured in through the applied voltage of 10 kV DC at temperature of 80℃∼110℃, humidity of 50%∼90%. The results of this study are as follows. In case the contaminants is constant, it found that the electrification voltage of electrostatic decreased with increasing temperature and humidity to 35℃, 90%. In case of 2 ml of contaminants concentration, it found that the electrification voltage of electrostatic decreased with increasing temperature and humidity to 35℃, 50%. In case of the sample at temperature of 15℃ and humidity of 50%, it found that the electrification voltage of electrostatic decreased with increasing contaminants to 10 ml.
