Noh, HN Yoon, HG Kim, JK Lee, H Park, M 2024-01-21T03:42:43Z 2024-01-21T03:42:43Z 2021-09-02 2006-01 0379-153X https://pubs.kist.re.kr/handle/201004/135847 The effect of vapor grown carbon fiber (VGCF) contents on electrical and rheological properties of VGCF filled polyphenylene sulfide (PPS) composites prepared through melt mixing using a twin screw extruder was studied. This method was proved to be quite effective to produce good dispersion of VGCF in the matrix even for highly filled PPS. From the dependence of the electrical conductivity on VGCF content, the percolation phenomena began to occur above I C wt%. While there is only a marginal increase of viscosity for I and 5 wt% VGCF filled PPS, the composites containing 10 wt% VGCF showed abrupt increase in viscosity as well as flattening of frequency vs modulus curve, indicating a transition from a liquid-like to a solid-like behavior due to the creation of VGCF network. This result agrees well to the fact that the network formation in the composite can be confirmed by rheological property dependence on filler content as well as by electrical conductivity measurement. Korean POLYMER SOC KOREA GROWN CARBON-FIBER NANOTUBE COMPOSITES POLYPROPYLENE FABRICATION Electrical and rheological behaviors of VGCF/polyphenylene sulfide composites Article 1 POLYMER-KOREA, v.30, no.1, pp.85 - 89 POLYMER-KOREA 30 1 85 89 scie scopus kci ART001189628 000235327800014 2-s2.0-33845403149 Polymer Science Polymer Science Article GROWN CARBON-FIBER NANOTUBE COMPOSITES POLYPROPYLENE FABRICATION VGCF polyphenylene sulfide nanocomposite electrical conductivity rheology dispersion