Effect of Pyrene Treatment on the Properties of Graphene/Epoxy Nanocomposites

被引：19

作者：

Kim, Soon Cheol ^{[1
]}

Lee, Hyung-il ^{[1
]}

Jeong, Han Mo ^{[1
]}

Kim, Byung Kyu ^{[2
]}

Kim, Jung Ho ^{[3
]}

Shin, Cheol Min ^{[3
]}

机构：

[1] Univ Ulsan, Dept Chem, Ulsan 680749, South Korea

[2] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea

[3] N Baro Tech Co, Res Ctr, Ulsan 689871, South Korea

来源：

MACROMOLECULAR RESEARCH | 2010年 / 18卷 / 11期

关键词：

GRAPHITE OXIDE; CONDUCTIVITY; BEHAVIOR; NANOTUBE;

D O I：

10.1007/s13233-010-1105-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of pyrene treatment on the dispersion, electric, and rheological properties of functionalized graphene sheets (FGS)/epoxy nanocomposites, was described. FGSs were dispersed in 100-fold of acetone containing the dissolved pyrene, and the mixture was sonicated at 330 W and 60 Hz for 1 h at room temperature. The results show that the dispersion of FGS is enhanced by treatment with pyrene, which causes a reduction in the percolation threshold to about 2 phr. The FGS images become more blurred after treatment with pyrene, which suggests that the dispersion of FGS in the epoxy matrix is enhanced by pyrene treatment. The complex viscosity increases as the FGS content is increased, and this increase is more evident as the amount of pyrene used for the treatment of FGSs is increased. Incomplete relaxation of dispersed FGS can be caused by physical congestion of highly anisotropic FGSs, which prevent free rotation in compliance with external dynamic shear.

引用

页码：1125 / 1128

页数：4

共 25 条

[1] DC and AC conductivity of carbon nanotubes-polyepoxy composites [J].