High-flame-retardancy multi-axial carbon fiber warp knitting fabric, preparation method and equipment
A technology of warp knitted fabrics and carbon fibers, which is applied in the direction of flame retardant fibers, carbon fibers, warp knitting, etc., can solve the problems of low content of flame retardants at the end, uneven flame retardancy of parts, and high content of flame retardants at the front end, etc. Achieve the effect of improving flame retardant performance, improving flame retardant grade, and easier combination
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Embodiment 1
[0022] A highly flame-resistant multi-axial carbon fiber warp-knitted fabric, including multiple carbon fiber layers and flame retardant powder uniformly attached to each carbon fiber layer, the flame retardant powder adheres to the carbon fiber layer and passes through the seam The weaving process is fixed.
[0023] Wherein, the powder is a solid flame retardant powder, including but not limited to halogen-based, organic phosphorus-based, nitrogen-based, silicon-based, antimony-based, aluminum-magnesium-based, inorganic phosphorus-based, boron-based, molybdenum-based, tin-based and their complex systems.
[0024] Further, the complex system includes but not limited to polybrominated diphenyl ether, tribromophenol, brominated bisphenol A, DOPO and its derivatives, melamine and its salts, red phosphorus, polyphosphate, aluminum hydroxide, Magnesium hydroxide, antimony trioxide, antimony pentoxide, zinc borate, molybdenum oxide.
Embodiment 2
[0026] A kind of equipment for preparing aforementioned carbon fiber warp knitted fabric, see figure 1 , the equipment includes an upstream creel 1, multiple sets of yarn supply assemblies, a plurality of spray pipes with the same number as the yarn supply assemblies, the second yarn spreading console 11, a feed tank 15, a feed pump 16, a circulation pump 17, a feed Pipe 18, pressure roller 19, liquid receiving tank 20, infrared drying box 21, infrared exhaust air 22, hot air drying oven 23, hot air drying exhaust air 24, braiding machine head 25 and winding machine 26, said upstream creel 1 and The silk spreading console 11 is arranged upstream of the silk spreading platform (i.e. the smuggling platform), a stirring head is arranged in the feed tank 15, and a circulation pump 17 is arranged on the tank body of the feed tank 15; the bottom of the feed tank 15 passes through The feed pipe 18 is connected with the feed pump 16; the end of the feed pipe 18 is provided with a plur...
Embodiment 3
[0029] A method for preparing a highly flame-resistant multi-axial carbon fiber warp-knitted fabric by using the aforementioned equipment, the method includes the following steps.
[0030] a, preparing the flame retardant powder into an inorganic flame retardant powder suspension;
[0031] b, introducing the inorganic flame retardant powder suspension into the feed tank;
[0032] c. Spray the suspension on the surface of the carbon fiber through the spray pipe after the carbon fiber weft laying;
[0033] d, the carbon fiber moves forward, and after laying the weft, use the pressure roller to remove the excess water and evenly disperse the inorganic flame retardant powder to the carbon fiber layer;
[0034] e, drying, using infrared drying;
[0035] f, sewing;
[0036] g, continue to use hot air to dry the residual moisture;
[0037] h, rewinding.
[0038] Wherein, in step c, according to the fabric structure, the suspension is sprayed between several layers of fabrics from ...
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