A stitched mat prepared by using waste carbon fiber, its preparation method and stitched mat preparation device

Abstract

The invention discloses a stitched mat prepared by using waste carbon fibers, its preparation method and a stitched mat preparation device. The stitched mat prepared by using waste carbon fibers includes waste fiber layers and yarns for sewing the waste fiber layers into a whole. The waste fiber layer is formed by laying waste carbon fiber, carbon fiber, carbon fiber and waste aramid fiber evenly; the length of aramid fiber and waste aramid fiber is 6-9cm, and the diameter is 5-15μm; the length of waste carbon fiber and carbon fiber is 4-8cm, and the diameter is 5-8μm; the yarn is polyester yarn, and the diameter of polyester yarn is 50-150D. A stitch-bonded mat preparation device using waste carbon fiber, including a chopping machine, a homogenizing device, a uniform web forming machine, an air-laid web machine, a stitch-bonding machine and a winding machine. The sewing mat made of waste carbon fiber in the present invention has good uniformity, high strength and long service life. Through the compounding of waste aramid fiber, the brittleness of waste carbon fiber is compensated, and it can be used for electric dust removal, environmental protection equipment, and wind blades. , male and female molds, FRP storage tanks, inner walls of oil pipelines, etc.

Description

technical field [0001] The invention relates to a stitch-bonded mat prepared by utilizing waste carbon fibers, a preparation method thereof and a stitch-bonded mat preparation device, belonging to the field of stitch-bonded mats. Background technique [0002] Carbon fiber is a high-strength and high-modulus fiber with a carbon content of more than 90%. It is made of acrylic fiber and viscose fiber and is oxidized and carbonized at high temperature. With the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance, it is an excellent material for manufacturing high-tech equipment such as aerospace and aviation. [0003] When carbon fiber is prepared, a lot of harmful gases and substances will be produced, which requires high labor costs, low production efficiency, and high prices. [0004] Waste carbon fiber is an unavoidable industrial tailing produced during the production or use of carbon f...

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Problems solved by technology

[0003] When carbon fiber is prepared, a lot of harmful gases and substances will be produced, which requires high labor costs, low production efficiency, and high prices

[0004] Waste carbon fiber is an unavoidable industrial tailing produced during the production or use of carbon fiber. Since waste carbon fiber is easy to agglomerate, difficult to disperse, and poor in uniformity, it has always been treated by land deep burial, but this will cause serious damage to the land. Serious pollution, resulting in a large waste of land resources

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