Kim, JH Cho, HN Kim, SH Kim, JY 2024-01-21T07:37:52Z 2024-01-21T07:37:52Z 2021-09-02 2004-02 1598-5032 https://pubs.kist.re.kr/handle/201004/137900 We have prepared polymer composites of low-density polyethylene (LDPE) and ionomers (Surlyn 8940) containing polar segments and metal ions by melt blending with carbon black (CB) as a conductive filler. The resistivity and positive temperature coefficient (PTC) of the ionomer/LDPE/CB composites were investigated with respect to the CB content. The ionomer content has an effect on the resistivity and percolation threshold of the polymer composites the percolation Curve exhibits a plateau at low CB content. The PTC intensity of the crosslinked ionomer/LDPE/CB composite decreased slightly at low ionomer content, and increased significantly above a critical concentration ofthe ionomer. Irradiation-induced crosslinking Could increase the PTC intensity and decrease the NTC effect of the polymer composites. The minimum switching current of the polymer composites decreased with temperatures the ratio of I-trip for the ionomer/LDPE/CB composite decreased to a greater extent than that of the LDPE/CB composite. The average temperature coefficient of resistance (alpha(T)) for the polymer composites increased in the low-temperature region. English POLYMER SOC KOREA POSITIVE TEMPERATURE-COEFFICIENT HIGH-DENSITY POLYETHYLENE CARBON-BLACK POLY(VINYLIDENE FLUORIDE) CONDUCTIVITY BLENDS FILLER PERCOLATION PHOSPHATE PTC behavior of polymer composites containing ionomers upon electron beam irradiation Article 10.1007/BF03218995 1 MACROMOLECULAR RESEARCH, v.12, no.1, pp.53 - 62 MACROMOLECULAR RESEARCH 12 1 53 62 scie scopus kci 000220060800008 2-s2.0-1642311231 Polymer Science Polymer Science Article POSITIVE TEMPERATURE-COEFFICIENT HIGH-DENSITY POLYETHYLENE CARBON-BLACK POLY(VINYLIDENE FLUORIDE) CONDUCTIVITY BLENDS FILLER PERCOLATION PHOSPHATE carbon black electron beam irradiation ionomer polymer composite positive temperature coefficient (PTC)