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碳纳米管(CNT)中sp~2碳碳键杂化结构使其拥有令人惊异的机械性能.理论上,无缺陷CNT的杨氏模量可达到1TPa,拉伸强度超过100GPa,是钢铁的100倍.实际上,CNT由于不可避免地存在结构缺陷,其机械性能很难达到上述预期.因此,为了获得优异的机械性能,一般尽量避免在CNT中引入缺陷;但结构缺陷的存在并非总起负面作用,如能对缺陷进行操控(即所谓的“缺陷工程”),将结构缺陷可控地引入再消除,则可以巧妙地实现对CNT机械性能的可逆调控.
Carbon nanotubes (CNTs) sp ~ 2 carbon-carbon hybrid structure to have amazing mechanical properties.In theory, the defect-free CNTs Young’s modulus up to 1TPa, tensile strength over 100GPa, is the steel 100 times In fact, the mechanical properties of CNT due to inevitable structural defects, it is difficult to achieve the above expectations.Therefore, in order to obtain excellent mechanical properties, generally try to avoid the introduction of defects in the CNT; but the structural defects do not always exist Negative effects, such as the ability to manipulate defects (so-called “defect engineering”), the structural defects can be controlled and introduced to eliminate them, then the CNT mechanical performance can be artificially achieved.