Researchers have developed a method to enhance the dynamic strength of carbon nanotube fibers, achieving up to 14 GPa. This involves a multi-scale structural optimization strategy that includes purification, functionalization, progressive stretching, and densification of the fibers. The resulting fibers exhibit improved interfacial interactions, alignment, and densification, leading to superior mechanical properties. These fibers, characterized by excellent dynamic strength and electrical conductivity, have significant potential for impact protection applications, such as in aerospace and ballistic protection.
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