High-temperature resistant ethylene propylene rubber modified material for cable and preparation method of high-temperature resistant ethylene propylene rubber modified material

Abstract

The invention discloses a high-temperature-resistant ethylene-propylene rubber modified material for cables and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 15-25 parts of filler, 0.3-0.8 parts of composite heat stabilizer, 20 parts by weight ‑30 parts of polyacrylonitrile, 45‑55 parts of ethylene propylene rubber, 0.3‑0.8 parts of coupling agent, 0.1‑0.3 parts of crosslinking agent; add composite heat stabilizer to ethylene propylene rubber and control the ethylene propylene rubber The cross-linking modification under the condition of the degree of polymerization of propylene rubber significantly improves the high temperature resistance of ethylene propylene rubber and retains good processability. The use of this ethylene propylene rubber material in cables can significantly increase the resistance of cables high temperature performance.

Description

technical field

[0001] The invention relates to the field of cable materials, in particular to a high-temperature-resistant ethylene-propylene rubber modified material for cables and a preparation method thereof. Background technique

[0002] The cable is made of one or more wires twisted to form a conductor core, and then a corresponding insulating layer is applied to the conductor, and a sealed sheath is formed on the outside. It is mainly composed of a core, an insulating layer, and a shielding layer. and sheath layer. The cable occupies less ground and space; the power supply is safe and reliable, and the possibility of electric shock is small; it is beneficial to improve the power factor of the power system; the operation and maintenance work is simple and convenient; it is beneficial to beautify the city and has many advantages such as confidentiality. It is widely used in life. and all areas of production. The function of the cable sheath layer is to seal and protec...

Examples

Embodiment 1

[0025] (1) Treat 10 parts of ceramic microspheres with a particle size of 0.1 μm and 10 parts of hydrotalcite with a particle size of 0.1 μm with 0.5 parts of vinylsilane coupling agent;

[0026] (2) Combine the coupled ceramic microspheres, hydrotalcite, 0.4 parts of dioctyl maleate, 0.2 parts of lanthanum isooctanoate, 25 parts of polyacrylonitrile with a degree of polymerization of 230, and 50 parts of polyacrylonitrile with a degree of polymerization of 1200 ethylene propylene rubber and 0.2 part of isocyanate crosslinking agent are mixed uniformly and then extruded with an extruder to obtain a high temperature resistant ethylene propylene rubber modified material for cables.

Embodiment 2

[0028] (1) Treat 7 parts of ceramic microspheres with a particle size of 0.5 μm and 8 parts of hydrotalcite with a particle size of 0.01 μm with 0.3 parts of vinylsilane coupling agent;

[0029] (2) Combine the coupled ceramic microspheres, hydrotalcite, 0.2 parts of dioctyl maleate, 0.1 part of lanthanum isooctanoate, 20 parts of polyacrylonitrile with a degree of polymerization of 150, and 55 parts of polyacrylonitrile with a degree of polymerization of 1600 ethylene propylene rubber and 0.1 part of isocyanate crosslinking agent are mixed evenly and then extruded with an extruder to obtain a high temperature resistant ethylene propylene rubber modified material for cables.

Embodiment 3

[0031] (1) Treat 10 parts of ceramic microspheres with a particle size of 0.01 μm and 15 parts of hydrotalcite with a particle size of 0.2 μm with 0.8 parts of vinylsilane coupling agent;

[0032] (2) Combine the coupling-treated filler with 0.6 parts of dioctyl maleate and 0.2 parts of lanthanum isooctanoate, 30 parts of polyacrylonitrile with a degree of polymerization of 280, 45 parts of ethylene-propylene rubber with a degree of polymerization of 800, 0.3 parts of the isocyanate crosslinking agent are uniformly mixed and then extruded by an extruder to obtain a high-temperature-resistant ethylene-propylene rubber modified material for cables.

technical field

[0001] The invention relates to the field of cable materials, in particular to a high-temperature-resistant ethylene-propylene rubber modified material for cables and a preparation method thereof. Background technique

[0002] The cable is made of one or more wires twisted to form a conductor core, and then a corresponding insulating layer is applied to the conductor, and a sealed sheath is formed on the outside. It is mainly composed of a core, an insulating layer, and a shielding layer. and sheath layer. The cable occupies less ground and space; the power supply is safe and reliable, and the possibility of electric shock is small; it is beneficial to improve the power factor of the power system; the operation and maintenance work is simple and convenient; it is beneficial to beautify the city and has many advantages such as confidentiality. It is widely used in life. and all areas of production. The function of the cable sheath layer is to seal and protec...

Examples

Embodiment 1

[0025] (1) Treat 10 parts of ceramic microspheres with a particle size of 0.1 μm and 10 parts of hydrotalcite with a particle size of 0.1 μm with 0.5 parts of vinylsilane coupling agent;

[0026] (2) Combine the coupled ceramic microspheres, hydrotalcite, 0.4 parts of dioctyl maleate, 0.2 parts of lanthanum isooctanoate, 25 parts of polyacrylonitrile with a degree of polymerization of 230, and 50 parts of polyacrylonitrile with a degree of polymerization of 1200 ethylene propylene rubber and 0.2 part of isocyanate crosslinking agent are mixed uniformly and then extruded with an extruder to obtain a high temperature resistant ethylene propylene rubber modified material for cables.

Embodiment 2

[0028] (1) Treat 7 parts of ceramic microspheres with a particle size of 0.5 μm and 8 parts of hydrotalcite with a particle size of 0.01 μm with 0.3 parts of vinylsilane coupling agent;

[0029] (2) Combine the coupled ceramic microspheres, hydrotalcite, 0.2 parts of dioctyl maleate, 0.1 part of lanthanum isooctanoate, 20 parts of polyacrylonitrile with a degree of polymerization of 150, and 55 parts of polyacrylonitrile with a degree of polymerization of 1600 ethylene propylene rubber and 0.1 part of isocyanate crosslinking agent are mixed evenly and then extruded with an extruder to obtain a high temperature resistant ethylene propylene rubber modified material for cables.

Embodiment 3

[0031] (1) Treat 10 parts of ceramic microspheres with a particle size of 0.01 μm and 15 parts of hydrotalcite with a particle size of 0.2 μm with 0.8 parts of vinylsilane coupling agent;

[0032] (2) Combine the coupling-treated filler with 0.6 parts of dioctyl maleate and 0.2 parts of lanthanum isooctanoate, 30 parts of polyacrylonitrile with a degree of polymerization of 280, 45 parts of ethylene-propylene rubber with a degree of polymerization of 800, 0.3 parts of the isocyanate crosslinking agent are uniformly mixed and then extruded by an extruder to obtain a high-temperature-resistant ethylene-propylene rubber modified material for cables.

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