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The Effect of Ultraviolet Irradiation on the Electro-transport Properties of Carbon Nanotubes Transport Properties of Ultraviolet Irradiated Carbon Nanotubes

机译:紫外线辐照对紫外线辐射碳纳米管碳纳米管传输性能的电迁移性能的影响

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10.1 Introduction The development of new promising composite materials based on polymer matrices with nanocarbon including carbon nanotube (CNT) filler is one of the urgent needs of modern material science. When creating polymer composites, the stability of their mechanical, electro-physical, and electro-dynamic characteristics under the influence of electromagnetic radiation of different frequencies is very important. The question of the interaction of electromagnetic radiation with polymers is completely unexplored. It is known that under prolonged action of ultraviolet (UV) radiation, there is "aging" of some polymers, for example, epoxy resin [1, 2]. The epoxy matrix begins to brittle fracture, to be recovered, while all its physical and chemical properties are lost. Short-term powerful UV irradiation strongly heats the surface of composites based on epoxy resin that leads to ablation of the same sites on the surface of the composite [3]. The papers contain data on the polarization of polymers, in particular, the epoxy resin under the action of UV irradiation [4, 5]. A short-time UV irradiation of the polymer composite based on PTFE leads to the solidification of the polymer and the growth of the crystalline phase that causes the improvement of its elastic characteristics [6, 7]. An increase in UV irradiation exposure time results in gradual amorphization and destruction of the crystalline phase.
机译:10.1简介基于纳米碳(CNT)填料的纳米碳的高聚合物基质的新有前途复合材料的开发是现代材料科学的迫切需求之一。在产生聚合物复合材料时,在不同频率的电磁辐射的影响下,它们的机械,电物理和电动动力特性的稳定性非常重要。电磁辐射与聚合物相互作用的问题完全是未开发的。众所周知,在紫外线(UV)辐射的延长作用下,一些聚合物的“老化”,例如环氧树脂[1,2]。环氧基质开始脆性骨折,待回收,而其所有物理和化学性质都会丧失。短期强大的紫外线照射强烈地基于环氧树脂强烈加热复合材料表面,其导致复合材料表面上的相同部位[3]。纸张含有关于聚合物的偏振的数据,特别是环氧树脂在UV照射的作用下[4,5]。基于PTFE的聚合物复合物的短时紫外线照射导致聚合物的凝固和晶相的生长,导致其弹性特性的改善[6,7]。紫外线照射暴露时间的增加导致结晶相的逐渐逐渐抗性和破坏。

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