新型炭材料Issue(6)：480-483,4.
PBT用多层石墨烯/碳纳米管复合导电剂的制备
Preparation of hybrids consisting of expanded graphite and carbon nanotubes as conductive fillers of polybutylene terephthalate
易义武 1曾效舒 1黄祎1
作者信息
- 1. 南昌大学 机电工程学院，江西 南昌 330031
- 折叠
摘要
Abstract
Expanded graphite ( EG) was loaded with iron by impregnating with ammonium carbonate and ferric nitrate solution. Carbon nanotubes ( CNTs) were grown on the EG by iron-catalyzed chemical vapor deposition, using acetylene as a carbon source to form hybrids that were used as a conductive filler to produce conducting polybutylene terephthalate ( PBT) composites by an ex-trusion method. It is found that the CNTs are not entangled and are easy to disperse. The CNT average diameters are 40, 20 and 40 nm, and their lengths are 2, 3. 7 and 2. 6μm for iron loadings of 1. 13, 0. 75 and 0. 57 mass%, respectively. The thickness of the EG is reduced to 10-30 nm as a result of CNT insertion into the graphene layers of the EG. The content of CNTs in the hybrids in-creases from 50 to 85 mass% with the increasing iron content. The conductive PBT modified by the hybrids ( 5 mass%) derived from EG loaded with 0. 75 mass% iron has a surface resistance of 1. 55í104Ω/cm2 , significantly lower than that ( 1. 55í1 010Ω/cm2 ) of the PBT modified by CNTs with the same amount of filler added.关键词
石墨烯/碳纳米管/复合粉体/化学气相沉积Key words
Graphene platelets/Carbon nanotubes/Mixture powders/CVD分类
通用工业技术引用本文复制引用
易义武,曾效舒,黄祎..PBT用多层石墨烯/碳纳米管复合导电剂的制备[J].新型炭材料,2013,(6):480-483,4.
