Flame resistant polypropylene cable material for urban rail transport and preparation method thereof
A technology of urban rail transit and flame-retardant polypropylene, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve problems such as hindering safe evacuation and fire-fighting work, loss of life and property, and achieve low smoke density and flame-retardant effects The effect of good and excellent physical and mechanical properties
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[0015] A flame-retardant polypropylene cable material for urban rail transit, made of the following raw materials (kg): polypropylene 53, polyetherimide 44, brominated polystyrene 25, ultrafine molybdenum powder 16, guaiac Resin 12, epoxy fatty acid methyl ester 11, diethylene glycol dibenzoate 9, sasol wax 4.5, isopropyl myristate 3, stannous stearate 1.5, tris(2,3-dibromopropyl ) Isocyanurate 6, activated calcium carbonate 17, barium stannate 8, dibenzoylmethane 2.5, composite flame retardant 17, antioxidant 11351.5, antioxidant 3301;
[0016] The preparation method of described composite flame retardant is as follows:
[0017] (1) Take palygorskite, attapulgite and barium metaborate according to the ratio of mass ratio 7:4:3, mix uniformly, pulverize, pass through a 150 mesh sieve, and then ball mill at 800r / min for 0.5h;
[0018] (2) Add water and stir the powder obtained by the above ball milling to prepare a suspension with a concentration of 60g / L, and then add a certa...
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