Low-smoke flame-retardant cable and preparation method thereof
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A low-smoke, flame-retardant, and cable technology, which is applied in the field of wire and cable, can solve problems such as poor cable application effects, and achieve the effects of reducing polluting smoke, good environmental protection, and reducing the generation of pollutants
Inactive Publication Date: 2019-10-01
JIANGTONG SHENGHUA (SHANGHAI) CABLE CO LTD
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[0005] Aiming at the problem in the prior art that a large amount of polluting smoke is likely to be produced by the burning cable, which leads to the poor overall application effect of the cable, the first purpose of the present invention is to provide a low-smoke flame-retardant cable, by adding phosphorus molybdenum ammonium phosphate and hydrotalcite powder, and make them play a good compound synergistic effect with each other to solve the above technical problems. When burning, it is not easy to produce more polluting smoke, and the pollution to the environment is relatively large. Small, and thus has a good application effect
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Embodiment 1
[0043] Example 1: A low-smoke flame-retardant cable, including cable wires and cable materials, the components of the cable materials and their corresponding parts by weight are shown in Table 1, and were prepared through the following steps:
[0044] Step 1, preparing materials, weighing the raw materials of corresponding parts by weight according to the formula;
[0045] Step 2, mixing materials, mix PVC resin material, ammonium phosphomolybdate, calcium carbonate, hydrotalcite powder, dibutyl hydroxytoluene, tricresyl phosphate, carbon forming agent, dibasic lead phosphite, and color masterbatch evenly , heated up to 65°C and stirred for 45min to obtain a mixture;
[0046] Step 3, extrusion granulation, put the mixture into a twin-screw extruder and extrude granulation. The temperature of the extruder is set to: 175°C in the first zone, 185°C in the second zone, 195°C in the third zone, and the rotation speed is 50r / min. Obtain low-smoke flame-retardant cable materials;
[...
Embodiment 2-8
[0049] Embodiment 2-8: A low-smoke flame-retardant cable, including cable conductors and cable materials. The difference from Embodiment 1 is that the components of the cable materials and their corresponding weight parts are shown in Table 1.
[0050] Each component and parts by weight thereof in table 1 embodiment 1-8
[0051]
Embodiment 9
[0052] Embodiment 9: A low-smoke flame-retardant cable. The difference from Embodiment 1 is that in step 2, 5 parts by weight of dibasic lead phosphite is replaced by dibasic lead sulfate.
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Abstract
The invention discloses a low-smoke flame-retardant cable and a preparation method thereof, and relates to the technical field of wires and cables. The problem is solved that a large number of polluting fumes are easily generated as a cable is burning and thus the overall application effect of the cable is poor. The low-smoke flame-retardant cable includes a cable conductor and a cable material. The cable material includes, by weight, 90-110 parts of a PVC resin material, 6-10 parts of ammonium phosphomolybdate, 1-4 parts of calcium carbonate , 3-5 parts of hydrotalcite powder, 8-12 parts of aprocessing agent , 6-15 parts of a plasticizer, 1.5-2.5 parts of a char- forming agent, 5-10 parts of a stabilizer and 0.5-2 parts of color masterbatch. When the low-smoke flame-retardant cable is burning, few polluting fumes are generated, pollution to the environment is less, and thus the cable has a good application effect.
Description
technical field [0001] The invention relates to the technical field of electric wires and cables, more specifically, it relates to a low-smoke flame-retardant cable and a preparation method thereof. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and is often twisted around a center. Insulating covering. [0003] In the Chinese invention application document with the publication number CN104312038A, a super heat-resistant and oil-resistant polyvinyl chloride cable material and its preparation method and cable are disclosed. The super heat-resistant and oil-resistant polyvinyl chloride cable material includes the following components by weight: PVC resin 100 parts, 16-21 parts of calcium zinc heat stabilizer, 60-80 parts of plasticizer, 0-10 parts of filler, 10-20 parts of modifier, 0.5-1.0 parts of antioxidant, 0.8-1.5 parts of lu...
Claims
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Application Information
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