Preparation method for thin flame-retardant non-woven fabric applied to vehicles
A technology of flame-retardant non-woven fabrics and manufacturing methods, which is applied in the direction of flame-retardant fibers, non-woven fabrics, fiber types, etc., can solve the problems of inability to achieve high-efficiency flame retardancy and flame-retardant effects, and achieve excellent adhesion Adhesion, good flame retardant effect, material saving effect
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[0021] Example 1:
[0022] The first step, the preparation of the base cloth
[0023] Through opening, carding, laying, and needle punching into polyester fibers, and then laying viscose fibers on the upper layer and acupuncture and compounding them into base fabric, the needle punching speed is 1300 times / min, and the needle density is 2500 pieces / m , so that the polyester fibers are evenly and firmly connected together. The total weight of the base fabric is 100-120g / m 2 , and the weight percentage of polyester fiber is 80-95%, and the weight percentage of viscose fiber is 5-20%.
[0024] The second step, impregnation
[0025] The flame retardant and the water-based glue are uniformly mixed to form a flame-retardant glue, wherein the water-based glue accounts for 40-60% by weight and the flame retardant accounts for 40-60% by weight. The flame retardant glue is mixed with color paste and water to obtain an impregnating liquid, and the base fabric obtained by acupuncture ...
Example Embodiment
[0032] Embodiment 2:
[0033] The first step, the preparation of the base cloth
[0034] Through opening, carding, laying, and needle punching into polyester fibers, and then laying viscose fibers on the upper layer and acupuncture and compounding them into base fabric, the needle punching speed is 1300 times / min, and the needle density is 2500 pieces / m , so that the polyester fibers are evenly and firmly connected together. The total weight of the base fabric is 100-120g / m 2 , and the weight percentage of polyester fiber is 60-80%, and the weight percentage of viscose fiber is 20-40%.
[0035] The second step, impregnation
[0036] The flame retardant and the water-based glue are uniformly mixed to form a flame-retardant glue, wherein the water-based glue accounts for 40-60% by weight and the flame retardant accounts for 40-60% by weight. The flame retardant glue is mixed with color paste and water to obtain an impregnating liquid, and the base fabric obtained by acupunct...
Example Embodiment
[0043] The comparison of the experimental results of the optimal process ratio of Example 1 and Example 2 shows that although the amount of flame retardant contained in the immersion liquid in Experiment 7 of Example 1 is less than that in Experiment 6 of Example 2, in the mixed powder particles sprinkled The content of polyethersulfone resin is relatively high. Due to the good viscosity and internal cohesion of the polyethersulfone resin, the powder particles of the polyethersulfone resin are used to improve the adhesion between the base fabric and aluminum foil, glass fiber and foam, and the polyethersulfone resin also has self-extinguishing properties without adding any The flame retardant has excellent flame retardancy, so the nonwoven fabric obtained in Example 1 has high flame retardancy. On the contrary, the content of polyethersulfone resin in the mixed powder particles in the dusting process of experiment 7 of Example 2 is relatively low, but the content of flame reta...
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