Positive/Negative temperature coefficient behaviors of electron beam-irradiated carbon blacks-loaded polyethylene nanocomposites
발표자
()
초록
내용
Polymer-based materials with positive temperature coefficients (PTC) are regarded as potential candidates. They offer many advantages over ceramic or metal oxide-based composites, including low resistance at room temperature, excellent flexibility and processability, and low cost. However, the electrical resistance instability and poor reproducibility have limited their use in practical applications. In this work, we prepared carbon blacks-reinforced high-density polyethylene nanocomposites (CBs-HDPE) loaded with polar additives (polyols or ionomers), which were subsequently subjected to electron beam (EB) irradiation to explore their PTC behaviors. Thus, it can be concluded that polar additives and further EB irradiation played an important role in enhancing the PTC performances. We believe the findings provide crucial insight for designing carbon–polymer nanocomposites with PTC behaviors in various self-regulating heating devices.