Halogen-free flame-retardant toughened polypropylene cable material and preparation method thereof
A polypropylene and cable material technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor mechanical strength and elasticity, large amount of flame retardants, poor flame retardant effect, etc., to achieve wear resistance Excellent tear performance, improved tensile strength, good elasticity and flame retardant effect
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Embodiment 1
[0023] A halogen-free flame-retardant and toughened polypropylene cable material, the basic formula and weight ratio are as follows: 30 parts of random copolymerized polypropylene, 8 parts of maleic anhydride grafted polypropylene, 5 parts of powdered polyphenylene sulfide, terminal hydroxyl 10 parts of hyperbranched polyester, 6 parts of rare earth coupling agent, 15 parts of triphenyl phosphate, 3 parts of lanthanum hydroxide, 12 parts of nano talc powder modified by coupling agent, and 1 part of antioxidant.
[0024] The above-mentioned halogen-free flame-retardant toughened polypropylene cable material, its preparation process steps are as follows:
[0025] (1) Weigh the raw materials in the formula according to the weight ratio and add them to the high-mixer, stir for 20 minutes, and mix well;
[0026] (2) Put the raw materials mixed in step (1) into the hopper of the twin-screw extruder, melt and extrude, and granulate; the processing technology is as follows: the temper...
Embodiment 2
[0028] A halogen-free flame-retardant and toughened polypropylene cable material, the basic formula and weight ratio are as follows: 40 parts of random copolymerized polypropylene, 14 parts of maleic anhydride grafted polypropylene, 10 parts of powdered polyphenylene sulfide, terminal hydroxyl 16 parts of hyperbranched polyamide ester, 12 parts of rare earth coupling agent, 22 parts of phosphonate, 7 parts of cerium hydroxide, 18 parts of nano talc powder modified by coupling agent, and 5 parts of antioxidant.
[0029] The above-mentioned halogen-free flame-retardant toughened polypropylene cable material, its preparation process steps are as follows:
[0030] (1) Weigh the raw materials in the formula according to the weight ratio and add them to the high mixer, stir for 30 minutes, and mix well;
[0031] (2) Put the raw materials mixed in step (1) into the hopper of the twin-screw extruder, melt and extrude, and granulate; the processing technology is as follows: the barrel ...
Embodiment 3
[0033] A halogen-free flame-retardant and toughened polypropylene cable material, the basic formula and weight ratio are: 35 parts of random copolymerized polypropylene, 11 parts of maleic anhydride grafted polypropylene, 8 parts of powdered polyphenylene sulfide, terminal hydroxyl 13 parts of hyperbranched polyester, 9 parts of rare earth coupling agent, 18 parts of ammonium polyphosphate, 5 parts of cerium hydroxide, 15 parts of nano talc powder modified by coupling agent, and 3 parts of antioxidant.
[0034] The above-mentioned halogen-free flame-retardant toughened polypropylene cable material, its preparation process steps are as follows:
[0035] (1) Weigh the raw materials in the formula according to the weight ratio and add them to the high mixer, stir for 25 minutes, and mix well;
[0036] (2) Put the raw materials mixed in step (1) into the hopper of the twin-screw extruder, melt and extrude, and granulate; the processing technology is as follows: the barrel temperat...
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