Flame-retardant cable material composition, preparation method thereof and flame-retardant cable
A flame-retardant cable material and flame-retardant cable technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of poor tensile properties and poor resilience of halogen-free flame-retardant cable materials, and achieve good tensile properties, Good resilience and high tensile strength
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[0020] Another aspect of the present invention also provides a preparation method of the above-mentioned flame retardant cable material composition, the method comprising:
[0021] (1) uniformly mixing the polystyrene-poly[ethylene-(ethylene-propylene)] copolymer, polyolefin, flame retardant and softener to obtain a mixture;
[0022] (2) The mixture obtained in step (1) is melted, extruded and granulated.
[0023] Further, the step (I) of the method also includes adding a nucleating agent, a silicone masterbatch, an antioxidant, and / or a light stabilizer, and / or a colorant.
[0024] In the preparation method of the present invention, the mixing can use a mixing method known to those skilled in the art, such as mechanical mixing, such as using a high-speed mixer to mix, the order of adding each raw material is not particularly specified during mixing, and the mixing time is 1 -6 minutes. The extrusion device may be known to those skilled in the art, such as a twin-screw extru...
Embodiment 1
[0029] With 100 parts by weight of SEEPS S4055 (Kuraray Company) (its performance parameters are shown in Table 1), the polypropylene K8303 (Sinopec) of 75 parts by weight, the nitrogen-phosphorus flame retardant ExolitIFR-10 (Hochest company) of 120 parts by weight , 50 parts by weight of paraffin oil KP6030 (Xinjiang Karamay Oil Refinery), 1 part by weight of nucleating agent 3988i (Miliken Chemical Company), 19 parts by weight of silicone masterbatch MB50-001 (Dow Corning Company), 2 parts by weight Hindered phenol antioxidant 1010 (Ciba), 2 parts by weight of phosphite antioxidant 168 (Ciba) and 4 parts by weight of hindered amine EB41-72 (Ciba), 4 parts by weight of colorant carbon black placed in high Fully mix in the mixer for 3 minutes, then add the mixture to the parallel twin-screw extruder of the extrusion device, extrude and granulate, the extrusion conditions are: twin-screw extruder, the screw speed is 50-1200 rpm, The extrusion temperature is 180-190° C. to obta...
Embodiment 2
[0031] With 100 parts by weight of SEEPS S4033 (Kuraray Company) (its performance parameters are shown in Table 1), 50 parts by weight of polyethylene 2410T (Sinopec), 170 parts by weight of nitrogen-phosphorus flame retardant Exolit IFR-10 (Hochest company ), 15 parts by weight of naphthenic oil KN4010 (Xinjiang Karamay Oil Refinery), 0.3 parts by weight of nucleating agent 3988i (Milikan Chemical Company), 2.5 parts by weight of silicone masterbatch MB50-006 (Dow Corning Company), 0.5 parts by weight Parts by weight of hindered phenol antioxidant 1010 (Ciba Corporation), 0.5 parts by weight of hindered amine EB41-72 (Ciba Corporation), 5 parts by weight of carbon black were placed in a high mixer and fully mixed for 3 minutes, then the mixture was added to the extruder In a parallel twin-rod extruder, extrude and granulate according to the method of Example 1 to obtain a flame-retardant cable material composition.
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Abstract
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