Hong Kong researchers have developed a new technology to enhance strength of ballistic-proof vests, announced Hong Kong University of Science and Technology ( HKUST) here Wednesday.

Researchers at the HKUST have developed a new technology that can greatly enhance the ballistic-proof strength of ultra high molecular weight polyethylene (UHMWPE) fiber by adding carbon nanotubes to pristine high-strength fiber.

The new technology is expected to pave the way for new UHMWPE applications, such as more comfortable and effective bullet-proof vests and extra-durable nautical rope.

Associate Professor of Chemical Engineering of HKUST Ping Gao said, "The technology we have developed can effectively align nanotubes along the length of polymer fibers so the tensile strength of nanocomposite fiber becomes up to eight times stronger than steel."

Carbon nanotubes can improve the engineering properties of plastic fibers in ballistic-resistant garments enabling the garments to withstand forces with very high impact yet remain light.

In addition, the high ventilating capability of carbon nanotubes means end products can be made more comfortable for users.

According to the researchers, the materials could be utilized in both engineering and our daily lives. They can replace anti- ballistic and durable steel or other alloys as well as being used in many everyday products to enhance performance.

"As the materials can withstand very high tensile force, they can be used, for example, to produce tennis racket threads with stronger elasticity. When used as strings for musical instruments, the nanocomposite fibers can also generate beautiful, high-quality music," postdoctoral researcher of HKUST Ruan Shilun said.

Source: Xinhua