Carbon nanotubes periodically decorated by highdensity polyethylene crystalline using solution crystallization

• 来源期刊: 中国科学B辑(英文版)
• 年，卷（期）: 2009,（7）
• 页码范围: 905-910
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11426-009-0056-5

摘要

The carbon nanotubes (CNTs) periodically decorated by high-density polyethylene (HDPE) composites with nanohybrid shish kebabs (NHSK) structures were prepared by CNTs-initiated solution crystallization.The disc-shaped HDPE crystalline lamellae were periodically located on the surface of CNTs in the direction perpendicular to the nanotube axis.Observations from scanning electron microscopy and transmission electron microscopy showed that with the increasing of crystallization temperature,the lateral dimension of the lamellae was decreased and the distance between two neighboring lamellae was increased.However,the thickness of the lamellae did not vary with the crystallization temperature.The formation mechanism of the NHSK structures was also explained.The one-dimensional structure and the ultra-high curved surface of CNTs lead to strong geometry confinement,which plays a main role in the formation of the NHSKs.