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PVC flame-retardant plastic particles for wires and cables and preparation method of PVC flame-retardant plastic particles
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A technology for flame-retardant plastics, wires and cables, applied in the field of plastic particles to achieve the effects of extending service life, enhancing toughness and improving flame-retardant performance
Inactive Publication Date: 2022-03-01
JIANGSU DONGFANG CABLE MATERIAL
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[0004] Aiming at the deficiencies of the prior art, the present invention provides a kind of PVC flame-retardant plastic particles for electric wire and cable and its preparation method, which solves the problems mentioned in the above-mentioned background technology
Method used
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Embodiment 1
[0025] A preparation method for PVC flame-retardant plastic particles for wire and cable, comprising the following steps:
[0026] Step A: Weighing: Use a weighing machine to weigh 80 parts of polyvinyl chloride, 45 parts of polyethylene, 20 parts of cross-linked polyethylene, 30 parts of polypropylene, 50 parts of fluoroplastic, 8 parts of plasticizer, and ultraviolet absorber 6 parts, 8 parts of antioxidant, 9 parts of flame retardant;
[0027] Step B: Mixing: Put the weighed polyvinyl chloride, polyethylene, cross-linked polyethylene, polypropylene, and fluoroplastic into the high-speed mixer, adjust the temperature of the high-speed mixer to 100°C, and set the temperature at 800-1200r / Min speed mixing at high speed for 25 to 30 minutes, carry out mixing treatment, and obtain the first mixed material;
[0028] Step C: Mix again: add the weighed plasticizer, UV absorber, antioxidant, and flame retardant into the first mixed material, raise the temperature of the high-speed...
Embodiment 2
[0031] A preparation method for PVC flame-retardant plastic particles for wire and cable, comprising the following steps:
[0032] Step A: Weighing: Use a weighing machine to weigh 70 parts of polyvinyl chloride, 50 parts of polyethylene, 30 parts of cross-linked polyethylene, 50 parts of polypropylene, 40 parts of fluoroplastics, 6 parts of plasticizer, and ultraviolet absorber 4 parts, 6 parts of antioxidant, 7 parts of flame retardant;
[0033] Step B: Mixing: Put the weighed polyvinyl chloride, polyethylene, cross-linked polyethylene, polypropylene, and fluoroplastic into the high-speed mixer, adjust the temperature of the high-speed mixer to 110°C, and set the temperature at 800-1200r / Min speed mixing at high speed for 25 to 30 minutes, carry out mixing treatment, and obtain the first mixed material;
[0034] Step C: Mix again: add the weighed plasticizer, UV absorber, antioxidant, and flame retardant into the first mixed material, raise the temperature of the high-spee...
Embodiment 3
[0037] A preparation method for PVC flame-retardant plastic particles for wire and cable, comprising the following steps:
[0038] Step A: Weighing: Use a weighing machine to weigh 50 parts of polyvinyl chloride, 60 parts of polyethylene, 30 parts of cross-linked polyethylene, 40 parts of polypropylene, 20 parts of fluoroplastics, 10 parts of plasticizer, and ultraviolet absorber 12 parts, 10 parts of antioxidant, 9 parts of flame retardant;
[0039] Step B: Mixing: Put the weighed polyvinyl chloride, polyethylene, cross-linked polyethylene, polypropylene, and fluoroplastic into a high-speed mixer, adjust the temperature of the high-speed mixer to 50°C, and Mix at a high speed of 15-20 minutes at a speed of 10 min, and perform mixing treatment to obtain the first mixed material;
[0040] Step C: Mix again: add the weighed plasticizer, UV absorber, antioxidant, and flame retardant into the first mixed material, raise the temperature of the high-speed mixer to 120°C, and Mix a...
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Abstract
The invention belongs to the technical field of plastic particles, and particularly relates to PVC (polyvinyl chloride) flame-retardant plastic particles for wires and cables and a preparation method thereof, and the PVC flame-retardant plastic particles comprise the following components in parts by weight: 40-80 parts of polyvinyl chloride, 40-60 parts of polyethylene, 20-50 parts of crosslinked polyethylene, 30-50 parts of polypropylene, 20-60 parts of fluoroplastic, 5-10 parts of a plasticizer, 4-15 parts of an ultravioletlight absorber, 5-10 parts of an antioxidant and 7-12 parts of a flame retardant. On the basis of the raw materials, the plasticizer, the ultravioletlight absorber, the antioxidant and the flame retardant are added, the toughness of the plastic particles can be enhanced by utilizing the plasticizer, the phenomenon that the plastic particles are easy to break is avoided, ultraviolet light in light can be absorbed through the ultraviolet light absorber and the antioxidant, and the flame retardant effect is improved. According to the present invention, the plastic particles are prevented from aging due to the effects of light, heat and oxygen, the service life is prolonged, and the flame retardant prepared through the high temperature and high pressure reaction of the DOPO derivative and the diamine NH2R2NH2 can efficiently improve the flame retardant property of the plastic particles.
Description
technical field [0001] The invention relates to the technical field of plastic particles, in particular to PVC flame-retardant plastic particles for wires and cables and a preparation method thereof. Background technique [0002] Plastic particles, commonly known as plastic particles, are raw materials for storage, transportation and processing of plastics in the form of semi-finished products. Plastic is a kind of polymer material. Ethylene, propylene, vinyl chloride, styrene, etc. can be produced from petroleum. The molecules of these substances can react with each other under certain conditions to form compounds with large molecular weight, that is, polymers. Vinyl chloride is a common plastic particle that is processed into polyvinyl chloride plastic. Polyvinyl chloride material has excellent mechanical and physical properties, flexibility, chemical resistance, cheap price, and excellent processing performance. It is widely used in the production of wire and cable and o...
Claims
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