这说明材料强度提高并不是聚合物发生化学反应造成的,一般这种变化在加热状态下是可逆的。
The researchers do have one lead, though.
不过研究人员已有所发现。
Because of the regular alignment of the nanotubes, they were able to stress the materialfrom various directions.
由于碳纳米管呈规律状排列,他们能够从不同的方向对材料施加作用力。
They found that when the direction of stress was at right-angles to the tubes, it stiffened by5.9%.
当施力方向与碳纳米管成直角时,材料硬度提高5.9%;
When it was in the direction in which tubes were pointing, the increase was only 4.3%.
当作用力与碳纳米管所指方向一致时,材料硬度仅提高4.3%。
What that means is still unclear, but it may be the key to understanding thephenomenonand thus being able to replicate it with other ingredients.
现在尚无法对其中的原因作出解释,但或许对于理解材料硬度变化是非常重要的进而在其他原材料身上复制这类变化也有了可能。
词语解释
1.stiffer a.更硬的
The needle catching problem is an old issue thatwe have ameliorated with stiffer needles and animproved corner cutting procedure, but it hasn tbeen fully solved, apparently.
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