Yun Young Soo, Pyo Hye-Ri, Lee Jae Yun, Chin In-Joo, Jin Hyoung-Joon
Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
J Nanosci Nanotechnol. 2013 Oct;13(10):7062-6. doi: 10.1166/jnn.2013.7865.
Polypropylene (PP)/carbon black (CB)-alkylated graphene oxide (AGO) hybrid nanocomposites were prepared via solution process and the synergistic effects of AGO on the properties of the PP/CB nanocomposites were investigated. AGO at a content of only 0.2 wt% formed an overlapped network structure in the PP matrix and affected the electrical, thermal and mechanical properties of the PP/CB nanocomposites. Specifically, PP/CB (5 wt%)-AGO (0.2 wt%) nanocomposites exhibited an electrical percolation threshold at lower CB contents than the PP/CB nanocomposites did, and the sheet resistance was decreased to 2.3 x 10(7) omega/sq. The thermal degradation temperature and recrystallization temperature of the PP/CB (10 wt%) nanocomposites were increased by 11.3 and 1.6 degrees C, respectively, by the addition of 0.2 wt% AGO. In addition, the Young's modulus of the PP/CB (10 wt%) nanocomposite was increased from 438.1 to 540.1 MPa.
通过溶液法制备了聚丙烯（PP）/炭黑（CB）-烷基化氧化石墨烯（AGO）杂化纳米复合材料，并研究了AGO对PP/CB纳米复合材料性能的协同作用。仅含0.2 wt%的AGO在PP基体中形成了重叠网络结构，影响了PP/CB纳米复合材料的电学、热学和力学性能。具体而言，PP/CB（5 wt%）-AGO（0.2 wt%）纳米复合材料在比PP/CB纳米复合材料更低的CB含量下表现出导电渗流阈值，且表面电阻降低至2.3×10⁷Ω/sq。添加0.2 wt%的AGO后，PP/CB（10 wt%）纳米复合材料的热降解温度和重结晶温度分别提高了11.3℃和1.6℃。此外，PP/CB（10 wt%）纳米复合材料的杨氏模量从438.1 MPa提高到了540.1 MPa。
