초록
In order to investigate the thermal and viscoelastic properties of Pp/ZrO2 composite fibers, polypropylene(PP) chips were mixed with the zirconium dioxide(ZrO2) powder characterized as a far infrared radiator and PP/ZrO2 composite fibers were spun by using the melt spinning machine with different spinning conditions (i. e.. draw ratio and the amount of ZrO2 Effects of spinning condition on the thermal and viscoelastic properties of the produced PP/ZrO2 composite fibers have investigated. The results obtained in this study are as follows: 1. The amount of ZrO2 on the composite fiber has scarecely influenced on the melting temperature and the melting temperature of iolo Pp/ZrO2 composite Hber is 161℃, but the crystallinity temperature has increased with increasing the amount of ZrO2 and the decomposition temperature of Pp/ZrO2 composite fiber has an decreasing trend with increasing the draw ratio. 2. The loss tangent(tan 6) has decreased with increasing the draw ratio in the ad absorption peak, but the absorption intensity of E' and E" has increased with increasing the draw ratio in the ac absorption temperature. Meanwhile, in the aa absorption region, the loss tangent of PP/ZrO2 composite fibers has decreased with increasing the amount of ZrO2.
