Xu Peng, Loomis James, Panchapakesan Balaji
Small Systems Laboratory, Department of Mechanical Engineering, University of Louisville, Louisville, Kentucky 40292, USA.
Appl Phys Lett. 2012 Mar 26;100(13):131907-1319075. doi: 10.1063/1.3698343. Epub 2012 Mar 28.
The authors report a method where in-situ photon assisted heating of multi-wall carbon nanotubes was utilized for enhanced polymerization of the nanotube/polydimethylsiloxane interface that resulted in significant load transfer and improved mechanical properties. Large Raman shifts (20 cm(-1) wavenumbers) of the 2D bands were witnessed for near-infrared light polymerized samples, signifying increased load transfer to the nanotubes for up to ∼80% strains. An increase in elastic modulus of ∼130% for 1 wt. % composites is reported for photon assisted crosslinking.
作者报告了一种方法,其中利用多壁碳纳米管的原位光子辅助加热来增强纳米管/聚二甲基硅氧烷界面的聚合,这导致了显著的载荷传递并改善了机械性能。对于近红外光聚合样品,观察到2D带的大拉曼位移(20 cm⁻¹波数),这表明在高达约80%应变时向纳米管的载荷传递增加。据报道,对于1 wt.%的复合材料,光子辅助交联使其弹性模量增加了约130%。