10年前由日本学者发现的新型材料—碳纳米管,近日被我国率先实现产业化。碳纳米管的尺寸是头发丝的十万分之一,但它导电能力却是铜的1万倍;强度是钢的100倍,而比重仅为钢的六分之一。不仅可制作超级电容器、超大规模集成电路、各种复合材料等,还可制作极轻便且刀枪不入的防弹衣,在高科技领域有广泛的应用前景。美国已将其列入国家安全的发展计划。据介绍,国高纯度碳纳米管批量生产极为困难,国际市场上90%纯度的碳纳米管每 The carbon nanotubes, a new type of material discovered by Japanese scholars 10 years ago, have recently been industrialized in China. The size of carbon nanotubes is one hundred thousandth of a hair, but its electrical conductivity is 10,000 times that of copper; its strength is 100 times that of steel, and its proportion is only one sixth of that of steel. It can not only make supercapacitors, VLSI circuits, various composite materials, but also can produce bullet-proof vests that are extremely lightweight and invulnerable to the guns. It has broad application prospects in high-tech fields. The United States has included it in the national security development plan. According to reports, the production of high-purity carbon nanotubes in China is extremely difficult, with 90% purity of carbon nanotubes on the international market.