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The inventors of this technology, in the course of researching and developing fiber-reinforced composite materials, produced the idea of ​​using finer fiber-reinforced resins to improve the properties of the composites with finer fibers. It was then discovered by accident that the fiber was immediately placed on the suction port of the vacuum cleaner, and the fiber expanded immediately. This led to interest in the development of a fiber-expansion technique. This technology uses the force of air to expand the width of the fiber bundle more than four times without damaging the fiber, which was not achieved by the technology in the past. As a result, the fiber bundle neatly arranges the monofilament through a fiber expansion process, eliminating the sag, and thus increasing the strength of the composite material. Due to the presence of gaps between fibers after fiber expansion, the resin is more easily accessible, so that there is a gap between the original fibers and the resin is more easily accessible, so that the original difficulty of impregnating the fiber bundle with the thermoplastic resin is also overcome. At the same time, it also meets the requirements of customers who want to use fine and light fibers, especially those using high-strength, high-modulus fibers such as carbon fibers and aramid fibers.
This technique has now been used to create carbon fiber expanded yarns and fabrics. The inventors presented trial products at the international forum in Tokyo, Japan, which had a strong response and attracted the interest of European and American counterparts.
The inventor said that after demonstrating trial products, they will be committed to mass production, and will develop looms for woven and expanded yarns. In the expanded fiber technology, ultrasonic and vibration effects will be used in place of air action, and improvements will also be made in the shape and surface state of the feed roller. At the same time, the fiber expansion technology will be extended to glass fiber, aramid fiber, high density polyethylene fiber and other reinforcing fibers, so that it can play a role in the use of carbon fiber can not use.
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