Mechanical properties and microstructure of single-wall carbon nanotube/elastomeric epoxy composites with block copolymers

作者：Li Qianqian^*; Zaiser Michael; Blackford Jane R; Jeffree Chris; He Yehong; Koutsos Vasileios

来源：Materials Letters, 2014, 125: 116-119.

DOI：10.1016/j.matlet.2014.03.096

• Polymeric composites
• Nanocomposites
• Carbon nanotubes
• Deformation and fracture
• Microstructure

Single-wall carbon-nanotube (SWNT) reinforced elastomeric epoxy composites were fabricated by adding 0.03 wt% SWNTs and using 0.3 wt% block copolymer to obtain a good dispersion of carbon nanotubes in the epoxy matrix. Young's modulus, fracture stress and strain of the SWNT/epoxy composites with block copolymer were increased by 141%, 127% and 43%, respectively, compared to the pure epoxy resin. Scanning electron microscopy observation revealed that using the block copolymer as a dispersing agent significantly improved both SWNT dispersion in the epoxy matrix and interfacial bonding/load transfer.

• 出版日期2014-6-15