Insulating fireproof radiation-resistant shielded cable material and preparation method thereof

Abstract

The invention discloses an insulating fireproof radiation-resistant shielded cable material and a preparation method thereof. The insulating fireproof radiation-resistant shielded cable material is prepared from EPDM, ethylene-vinyl acetate copolymer, polyvinyl chloride, phenol-formaldehyde resin, polydimethylsiloxane, glass fiber, plasticizer, a vulcanizing agent, a coupling agent, an anti-aging agent, a stabilizing agent, a flame retardant and an antioxidant. Raw materials are compounded according to a ratio and then poured into a high-speed mixer to be mixed; after the raw materials are evenly mixed, the raw materials are poured into a twin-screw extruder to undergo melt extrusion, and air-cooled granulation is performed. All ingredients of the cable material have respective independent effects and advantages and are also matched with each other to form a whole, so that the cable material is insulating, fireproof and resistant to radiation, has a shielding function and is excellent in performance. Moreover, the raw material cost is low, and thus the product cost is low. A manufacturing process is simple.

Description

technical field

[0001] The invention relates to the field of cable materials, in particular to an insulating fire-resistant and radiation-resistant shielded cable material and a preparation method thereof. Background technique

[0002] In recent years, with the rapid development of electrical machinery, electronic appliances, automobiles and other related industries and the wide application of radiation cross-linking technology in the wire and cable industry, radiation cross-linked cables are also showing a rapid development trend. At present, irradiation cross-linked cables have been successfully used in motors, high-power lighting, automotive low-voltage signal control, various locomotives, rail transit, mineral development, X-ray high-voltage firing and high-power transmission industries. Among them, the most widely used is cross-linked polyolefin cable insulation materials.

[0003] Cross-linked polyolefin cable insulation materials use physical irradiation to promote c...

Examples

Embodiment 1

[0021] Insulated fire-resistant and radiation-resistant shielded cable material is prepared from the following raw materials in parts by weight: 50 parts of ethylene-butadiene rubber, 55 parts of ethylene-vinyl acetate copolymer, 30 parts of polyvinyl chloride, 35 parts of phenolic resin, polydimethylsiloxane 25 parts of oxane, 25 parts of glass fiber, 20 parts of dioctyl sebacate, 20 parts of dicumyl peroxide, 30 parts of silane coupling agent, 12 parts of anti-aging agent DDA, 15 parts of tribasic lead sulfate, flame retardant 30 parts of agent, 16 parts of 2-thiol benzimidazole.

[0022] In the ethylene-vinyl acetate copolymer, the mass percentage of ethylene is 56%, and the mass percentage of vinyl acetate is 44%.

[0023] The flame retardant is a mixture of aluminum oxide and silicon nitride, the ratio of which is 1:0.7 in parts by weight, and the particle diameters of the aluminum oxide and silicon nitride are both less than 10 μm.

Embodiment 2

[0025] Insulated fire-resistant and radiation-resistant shielded cable material is prepared from the following raw materials in parts by weight: 54 parts of ethylene-butadiene rubber, 51 parts of ethylene-vinyl acetate copolymer, 34 parts of polyvinyl chloride, 31 parts of phenolic resin, polydimethylsiloxane 28 parts of oxane, 21 parts of glass fiber, 24 parts of dioctyl adipate, 18 parts of dicumyl peroxide, 34 parts of silane coupling agent, 11 parts of anti-aging agent DDA, 17 parts of tribasic lead sulfate, flame retardant 28 parts of agent, 17 parts of 2-thiol benzimidazole.

[0026] In the ethylene-vinyl acetate copolymer, the mass percentage of ethylene is 62%, and the mass percentage of vinyl acetate is 38%.

[0027] The flame retardant is a mixture of aluminum oxide and silicon nitride, the ratio of which is 1:0.78 by weight, and the particle diameters of the aluminum oxide and silicon nitride are both less than 10 μm.

Embodiment 3

[0029] Insulated, fire-resistant and radiation-resistant shielded cable material is prepared from the following raw materials in parts by weight: 57 parts of ethylene-butadiene rubber, 48 parts of ethylene-vinyl acetate copolymer, 37 parts of polyvinyl chloride, 27 parts of phenolic resin, polydimethylsiloxane 32 parts of oxane, 17 parts of glass fiber, 28 parts of dioctyl phthalate, 17 parts of dicumyl peroxide, 38 parts of trimethylolpropane triacrylate, 11 parts of antioxidant DDA, dibutyltin dilaurate 19 parts, 26 parts of flame retardant, 101018 parts of antioxidant.

[0030] In the ethylene-vinyl acetate copolymer, the mass percentage of ethylene is 66%, and the mass percentage of vinyl acetate is 34%.

[0031] The flame retardant is a mixture of aluminum oxide and silicon nitride, the ratio of which is 1:0.84 by weight, and the particle diameters of the aluminum oxide and silicon nitride are both less than 10 μm.

technical field

[0001] The invention relates to the field of cable materials, in particular to an insulating fire-resistant and radiation-resistant shielded cable material and a preparation method thereof. Background technique

[0002] In recent years, with the rapid development of electrical machinery, electronic appliances, automobiles and other related industries and the wide application of radiation cross-linking technology in the wire and cable industry, radiation cross-linked cables are also showing a rapid development trend. At present, irradiation cross-linked cables have been successfully used in motors, high-power lighting, automotive low-voltage signal control, various locomotives, rail transit, mineral development, X-ray high-voltage firing and high-power transmission industries. Among them, the most widely used is cross-linked polyolefin cable insulation materials.

[0003] Cross-linked polyolefin cable insulation materials use physical irradiation to promote c...

Examples

Embodiment 1

[0021] Insulated fire-resistant and radiation-resistant shielded cable material is prepared from the following raw materials in parts by weight: 50 parts of ethylene-butadiene rubber, 55 parts of ethylene-vinyl acetate copolymer, 30 parts of polyvinyl chloride, 35 parts of phenolic resin, polydimethylsiloxane 25 parts of oxane, 25 parts of glass fiber, 20 parts of dioctyl sebacate, 20 parts of dicumyl peroxide, 30 parts of silane coupling agent, 12 parts of anti-aging agent DDA, 15 parts of tribasic lead sulfate, flame retardant 30 parts of agent, 16 parts of 2-thiol benzimidazole.

[0022] In the ethylene-vinyl acetate copolymer, the mass percentage of ethylene is 56%, and the mass percentage of vinyl acetate is 44%.

[0023] The flame retardant is a mixture of aluminum oxide and silicon nitride, the ratio of which is 1:0.7 in parts by weight, and the particle diameters of the aluminum oxide and silicon nitride are both less than 10 μm.

Embodiment 2

[0025] Insulated fire-resistant and radiation-resistant shielded cable material is prepared from the following raw materials in parts by weight: 54 parts of ethylene-butadiene rubber, 51 parts of ethylene-vinyl acetate copolymer, 34 parts of polyvinyl chloride, 31 parts of phenolic resin, polydimethylsiloxane 28 parts of oxane, 21 parts of glass fiber, 24 parts of dioctyl adipate, 18 parts of dicumyl peroxide, 34 parts of silane coupling agent, 11 parts of anti-aging agent DDA, 17 parts of tribasic lead sulfate, flame retardant 28 parts of agent, 17 parts of 2-thiol benzimidazole.

[0026] In the ethylene-vinyl acetate copolymer, the mass percentage of ethylene is 62%, and the mass percentage of vinyl acetate is 38%.

[0027] The flame retardant is a mixture of aluminum oxide and silicon nitride, the ratio of which is 1:0.78 by weight, and the particle diameters of the aluminum oxide and silicon nitride are both less than 10 μm.

Embodiment 3

[0029] Insulated, fire-resistant and radiation-resistant shielded cable material is prepared from the following raw materials in parts by weight: 57 parts of ethylene-butadiene rubber, 48 parts of ethylene-vinyl acetate copolymer, 37 parts of polyvinyl chloride, 27 parts of phenolic resin, polydimethylsiloxane 32 parts of oxane, 17 parts of glass fiber, 28 parts of dioctyl phthalate, 17 parts of dicumyl peroxide, 38 parts of trimethylolpropane triacrylate, 11 parts of antioxidant DDA, dibutyltin dilaurate 19 parts, 26 parts of flame retardant, 101018 parts of antioxidant.

[0030] In the ethylene-vinyl acetate copolymer, the mass percentage of ethylene is 66%, and the mass percentage of vinyl acetate is 34%.

[0031] The flame retardant is a mixture of aluminum oxide and silicon nitride, the ratio of which is 1:0.84 by weight, and the particle diameters of the aluminum oxide and silicon nitride are both less than 10 μm.

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