WO2020125144A1

WO2020125144A1 - Corrosion-resistant cable and preparation method therefor

Info

Publication number: WO2020125144A1
Application number: PCT/CN2019/109953
Authority: WO
Inventors: 段阳; 林震午; 孟笑天
Original assignee: 江苏中电科电力建设有限公司
Priority date: 2018-12-17
Filing date: 2019-10-08
Publication date: 2020-06-25
Also published as: CN109627519A

Abstract

Disclosed is a corrosion-resistant cable. A wear-resistant and corrosion-resistant sheath comprises the following components in parts by mass: main materials: acrylonitrile-butadiene rubber, acrylic resin, quartz sand, and ceramic particles; a flame retardant: aluminium hydroxide and calcium carbonate; a reinforcing agent: white carbon black and sodium silicate; and a vulcanizing agent: dicumyl peroxide. A high-temperature-resistant and corrosion-resistant sheath comprises the following components in parts by mass: main materials: organic silicone rubber, bentonite, glass fiber, and ceramic particles; a flame retardant: propyl hypophosphorous acid, cyanuric acid, and nano silica; a reinforcing agent: high styrene resin, white carbon black, and calcium silicate; and a vulcanizing agent: tert-butyl hydroperoxide and dimethacrylate. Also disclosed is a preparation method for the corrosion-resistant cable. The cable in the present invention adopts a double-sheath structure comprising the wear-resistant and corrosion-resistant sheath and the high-temperature-resistant and corrosion-resistant sheath.

Description

Corrosion-resistant cable and preparation method thereof

Technical field

The invention relates to the field of cables, in particular to a corrosion-resistant cable and a preparation method thereof.

Background technique

A cable is usually a rope-like cable formed by twisting several or several groups of conductors. Each group of conductors is insulated from each other and is often twisted around a center. The entire outer layer is covered with a highly insulating coating. The cable consists of four components: wire core, insulation layer, inner sheath and sheath, which are mostly erected in the air or installed in the ground or underwater, used for telecommunications or power transmission. However, the jacket of the cable of the prior art often has problems of poor wear resistance, high temperature resistance, and corrosion resistance.

Summary of the invention

Object of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a corrosion-resistant cable that adopts a double-sheath structure that includes one wear-resistant and corrosion-resistant jacket and one high-temperature and corrosion-resistant jacket.

Technical solution: A corrosion-resistant cable of the present invention is characterized in that the cable adopts a double-sheath structure, which includes a wear-resistant corrosion-resistant jacket and a high-temperature corrosion-resistant jacket; The set includes the following parts by mass: Main ingredients: 15-20 parts of nitrile rubber, 12-16 parts of acrylic resin, 1.2-2.4 parts of quartz sand, 1.6-2.2 parts of ceramic particles; flame retardant Agent: 1 to 3 parts of aluminum hydroxide, 0.5 to 1.2 parts of calcium carbonate; reinforcing agent: 0.8 to 1.5 parts of white carbon black, 0.4 to 2 parts of sodium silicate; vulcanizing agent: dicumyl peroxide 0.1 to 0.2;

The high-temperature and corrosion-resistant sheath includes the following components in the following mass fractions: Main ingredients: silicone rubber 14 parts to 23 parts, bentonite 6 parts to 12 parts, glass fiber 3 parts to 8 parts, ceramic particles 2 parts to 3.6 parts; flame retardant: 8 parts to 17 parts of propyl hypophosphorous acid, 2 parts to 6 parts of cyanuric acid, 0.5 parts to 1 part of nano silica; reinforcing agent: 2 parts to 2.5 parts of high styrene resin, white Carbon black 1.1 parts to 1.4 parts, calcium silicate 0.5 parts to 0.8 parts; vulcanizing agent: tert-butyl hydrogen peroxide 0.2 parts to 0.3 parts, dimethacrylate 0.1 parts to 0.2 parts.

Wherein, the wear-resistant and corrosion-resistant sheath and the high-temperature and corrosion-resistant sheath are connected by a bonding substance.

Wherein, the wear-resistant and corrosion-resistant sheath is located outside the high-temperature and corrosion-resistant sheath.

A method for preparing a corrosion-resistant cable is characterized in that a wear-resistant corrosion-resistant sheath and a high-temperature corrosion-resistant sheath are used as the outermost layer of the cable to obtain a cable product.

The preparation method of the wear-resistant and corrosion-resistant sheath includes the following steps:

(1) Put 15 parts to 20 parts of nitrile rubber, 12 parts to 16 parts of acrylic resin, 1 part to 3 parts of aluminum hydroxide, 0.5 parts to 1.2 parts of calcium carbonate in the reaction kettle, mix them, and put them into a ball mill for grinding 25min～50min, the grinding media is zirconia beads with a diameter of 0.12mm～0.25mm;

(2) Add 0.8 parts to 1.5 parts of white carbon black, 0.4 parts to 2 parts of sodium silicate, 0.1 parts to 0.2 parts of dicumyl peroxide to the ball mill, continue grinding for 5 minutes to 16 minutes, and obtain a fineness of 90 after filtration Slurry of mesh ~ 100 mesh;

(3) Put the slurry into the reaction kettle, add 1.2 parts to 2.4 parts of quartz sand and 1.6 parts to 2.2 parts of ceramic particles, mix thoroughly, melt mix at 160 ℃ to 200 ℃ for 8 min to 12 min to obtain colloid;

(4) Put the colloid into the extruder to extrude it, and then granulate to obtain pellets; the pellets are put into the molding machine to form and cut to obtain a wear-resistant and corrosion-resistant sheath.

The preparation method of the high temperature resistant corrosion resistant sheath includes the following steps:

(1) Put 14 parts to 23 parts of silicone rubber, 6 parts to 12 parts of bentonite, 8 parts to 17 parts of propyl hypophosphorous acid, 2 parts to 6 parts of cyanuric acid, and 0.5 parts to 1 part of nano silica After mixing in the kettle, put it into a ball mill and grind for 25 min to 50 min. The grinding medium is zirconia beads with a diameter of 0.12 mm to 0.25 mm;

(2) Add 2 to 2.5 parts of high styrene resin, 1.1 to 1.4 parts of white carbon, 0.5 to 0.8 parts of calcium silicate, 0.2 to 0.3 parts of tert-butyl hydrogen peroxide, dimethyl to the ball mill After 0.1 parts to 0.2 parts of acrylic ester, continue grinding for 5 minutes to 16 minutes, and obtain a slurry with a fineness of 90 mesh to 100 mesh after filtration;

(3) Put the slurry into the reaction kettle, add 3 to 8 parts of glass fiber and 2 to 3.6 parts of ceramic particles, mix thoroughly, melt mix at 160 to 200°C for 8 to 12 minutes to obtain a colloid;

(4) Put the colloid into the extruder to extrude it, and then granulate to obtain pellets; pellets are put into the molding machine to form and cut to obtain a high temperature and corrosion resistant jacket.

Beneficial effect: Compared with the prior art, the present invention has the following significant advantages: the present invention adopts a double sheath structure, the outer sheath is wear-resistant and corrosion-resistant, effectively resists wear or corrosion caused by external factors, prolongs the service life, and has certain High temperature resistance; the inner sheath is resistant to high temperature and corrosion, effectively preventing damage caused by overheating of the cable core, preventing fire and other disasters, extending the service life, and having a certain corrosion resistance to further extend the service life.

detailed description

The technical solution of the present invention will be further described below with reference to specific embodiments.

Embodiment 1: A corrosion-resistant cable of this embodiment adopts a double-sheath structure, which includes one wear-resistant corrosion-resistant jacket and one high-temperature corrosion-resistant jacket; the wear-resistant corrosion-resistant jacket includes the following The components of mass parts: main material: 15 parts of nitrile rubber, 12 parts of acrylic resin, 1.2 parts of quartz sand, 1.6 parts of ceramic particles; flame retardant: 1 part of aluminum hydroxide, 0.5 part of calcium carbonate; reinforcing agent : 0.8 parts of white carbon black, 0.4 parts of sodium silicate; vulcanizing agent: 0.1 parts of dicumyl peroxide; the high-temperature and corrosion-resistant sheath includes the following parts by mass of each component: main material: silicone rubber 14 Parts, 6 parts of bentonite, 3 parts of glass fiber, 2 parts of ceramic particles; flame retardant: 8 parts of propyl hypophosphorous acid, 2 parts of cyanuric acid, 0.5 part of nano silica; reinforcing agent: 2 parts of high styrene resin, 1.1 parts of white carbon black, 0.5 parts of calcium silicate; vulcanizing agent: 0.2 parts of tert-butyl hydroperoxide, 0.1 parts of dimethacrylate.

In the method for preparing the corrosion-resistant cable of this embodiment, a wear-resistant corrosion-resistant sheath and a high-temperature corrosion-resistant sheath are used as the outermost layer of the cable to obtain a cable product.

(1) Put 15 parts of nitrile rubber, 12 parts of acrylic resin, 1 part of aluminum hydroxide, and 0.5 part of calcium carbonate in the reaction kettle, mix them, put them in a ball mill and grind for 25 min, the grinding medium is zirconia beads with a diameter of 0.12 mm ball;

(2) Add 0.8 parts of white carbon black, 0.4 parts of sodium silicate and 0.1 parts of dicumyl peroxide to the ball mill, continue grinding for 5 minutes, and obtain a slurry with a fineness of 100 mesh after filtration;

(3) Put the slurry into the reaction kettle, add 1.2 parts of quartz sand and 1.6 parts of ceramic particles, mix thoroughly, melt mix at 160 ℃ for 8 minutes to obtain colloid;

(1) Put 14 parts of silicone rubber, 6 parts of bentonite, 8 parts of propyl hypophosphorous acid, 2 parts of cyanuric acid, 0.5 parts of nano-silica in the reaction kettle, mix them, put them in a ball mill and grind for 25 minutes. Zirconia beads with a diameter of 0.12mm;

(2) Add 2 parts of high styrene resin, 1.1 parts of white carbon black, 0.5 parts of calcium silicate, 0.2 parts of tert-butyl hydroperoxide, 0.1 parts of dimethacrylate into the ball mill, and continue grinding for 5 minutes. Slurry with fineness of 100 mesh;

(3) Put the slurry into the reaction kettle, add 3 parts of glass fiber and 2 parts of ceramic particles, mix thoroughly, melt mix at 160 ℃ for 8 min to obtain colloid;

(4) Put the colloid into the extruder and extrude it, then granulate to obtain pellets; pellets are put into the molding machine to form and cut to obtain high temperature and corrosion resistant sheath

Embodiment 2: A corrosion-resistant cable of this embodiment adopts a double-sheath structure, which includes one wear-resistant corrosion-resistant jacket and one high-temperature corrosion-resistant jacket; the wear-resistant corrosion-resistant jacket includes the following The components of mass parts: main materials: 20 parts of nitrile rubber, 16 parts of acrylic resin, 2.4 parts of quartz sand, 2.2 parts of ceramic particles; flame retardant: 3 parts of aluminum hydroxide, 1.2 parts of calcium carbonate; reinforcing agent : 1.5 parts of white carbon black, 2 parts of sodium silicate; vulcanizing agent: 0.2 parts of dicumyl peroxide; the high-temperature and corrosion-resistant sheath includes the following parts by mass: main material: silicone rubber 23 Parts, bentonite 12 parts, glass fiber 8 parts, ceramic particles 3.6 parts; flame retardant: propyl hypophosphorous acid 17 parts, cyanuric acid 6 parts, nano silica 1 part; reinforcing agent: high styrene resin 2.5 parts, White carbon black 1.4 parts, calcium silicate 0.8 parts; vulcanizing agent: tert-butyl hydrogen peroxide 0.3 parts, dimethacrylate 0.2 parts.

(1) Put 20 parts of nitrile rubber, 16 parts of acrylic resin, 3 parts of aluminum hydroxide, and 1.2 parts of calcium carbonate into the reaction kettle and mix them. Put them into a ball mill and grind for 50 minutes. The grinding medium is zirconia beads with a diameter of 0.25 mm. ball;

(2) Add 1.5 parts of white carbon black, 2 parts of sodium silicate and 0.2 parts of dicumyl peroxide to the ball mill and continue grinding for 16 minutes. After filtration, obtain a slurry with a fineness of 90 mesh;

(3) Put the slurry into the reaction kettle, add 2.4 parts of quartz sand and 2.2 parts of ceramic particles, mix thoroughly, melt mix at 200°C for 12 min to obtain colloid;

(1) Put 23 parts of silicone rubber, 12 parts of bentonite, 17 parts of propyl hypophosphorous acid, 6 parts of cyanuric acid, and 1 part of nano silica into the reaction kettle and mix well, then put them into a ball mill and grind for 50 minutes. The grinding medium is Zirconia beads with a diameter of 0.25mm;

(2) Add 2.5 parts of high styrene resin, 1.4 parts of white carbon black, 0.8 parts of calcium silicate, 0.3 parts of tert-butyl hydroperoxide, 0.2 parts of dimethacrylate into the ball mill, and continue grinding for 16 minutes. Slurry with fineness of 90 mesh;

(3) Put the slurry into the reaction kettle, add 8 parts of glass fiber and 3.6 parts of ceramic particles, mix thoroughly, melt mix at 200°C for 12 min to obtain colloid;

Embodiment 3: A corrosion-resistant cable of this embodiment adopts a double-sheath structure, which includes one wear-resistant corrosion-resistant jacket and one high-temperature corrosion-resistant jacket; the wear-resistant corrosion-resistant jacket includes the following The components of mass parts: main material: 16 parts of nitrile rubber, 13 parts of acrylic resin, 1.3 parts of quartz sand, 1.7 parts of ceramic particles; flame retardant: 2 parts of aluminum hydroxide, 0.6 parts of calcium carbonate; reinforcing agent : 0.9 parts of white carbon black, 0.5 parts of sodium silicate; vulcanizing agent: 0.11 parts of dicumyl peroxide; the high-temperature and corrosion-resistant sheath includes the following components in mass parts: main material: silicone rubber 15 Parts, 7 parts of bentonite, 4 parts of glass fiber, 2.1 parts of ceramic particles; flame retardant: 9 parts of propyl hypophosphorous acid, 3 parts of cyanuric acid, 0.6 parts of nano silica; reinforcing agent: 2.1 parts of high styrene resin, 1.2 parts of white carbon black, 0.6 parts of calcium silicate; vulcanizing agent: 0.21 part of tert-butyl hydroperoxide, 0.11 part of dimethacrylate.

(1) Put 16 parts of nitrile rubber, 13 parts of acrylic resin, 2 parts of aluminum hydroxide, and 0.6 parts of calcium carbonate in the reaction kettle and mix them. Put them into a ball mill and grind for 26 minutes. The grinding medium is zirconia beads with a diameter of 0.13 mm. ball;

(2) Add 0.9 parts of white carbon black, 0.5 parts of sodium silicate, and 0.11 parts of dicumyl peroxide to the ball mill, continue grinding for 6 minutes, and obtain a slurry with a fineness of 95 mesh after filtration;

(3) Put the slurry into the reaction kettle, add 1.3 parts of quartz sand and 1.7 parts of ceramic particles, mix thoroughly, melt mix at 165°C for 9 min to obtain colloid;

(1) Put 15 parts of silicone rubber, 7 parts of bentonite, 9 parts of propyl hypophosphorous acid, 3 parts of cyanuric acid, and 0.6 parts of nano-silica into the reaction kettle and mix them. Put them into a ball mill and grind for 26 minutes. The grinding medium is Zirconia beads with a diameter of 0.13mm;

(2) Add 2.1 parts of high styrene resin, 1.2 parts of white carbon black, 0.6 parts of calcium silicate, 0.21 parts of tert-butyl hydroperoxide and 0.11 parts of dimethacrylate into the ball mill, and continue grinding for 6 minutes. Slurry with fineness of 95 mesh;

(3) Put the slurry into the reaction kettle, add 4 parts of glass fiber and 2.1 parts of ceramic particles, mix thoroughly, melt mix at 165°C for 9 min to obtain colloid;

Embodiment 4: A corrosion-resistant cable of this embodiment adopts a double-sheath structure, which includes one wear-resistant corrosion-resistant jacket and one high-temperature corrosion-resistant jacket; the wear-resistant corrosion-resistant jacket includes the following The components of mass parts: main material: 19 parts of nitrile rubber, 15 parts of acrylic resin, 2.3 parts of quartz sand, 2.1 parts of ceramic particles; flame retardant: 2 parts of aluminum hydroxide, 1.1 parts of calcium carbonate; reinforcing agent : 1.4 parts of white carbon black, 1.9 parts of sodium silicate; vulcanizing agent: 0.19 parts of dicumyl peroxide; the high-temperature and corrosion-resistant sheath includes the following components in mass parts: main material: silicone rubber 22 Parts, 11 parts of bentonite, 7 parts of glass fiber, 3.5 parts of ceramic particles; flame retardant: 16 parts of propyl hypophosphorous acid, 5 parts of cyanuric acid, 0.9 parts of nano silica; reinforcing agent: 2.4 parts of high styrene resin, White carbon black 1.3 parts, calcium silicate 0.7 parts; vulcanizing agent: tert-butyl hydrogen peroxide 0.29 parts, dimethacrylate 0.19 parts.

(1) Put 19 parts of nitrile rubber, 15 parts of acrylic resin, 2 parts of aluminum hydroxide, and 1.1 parts of calcium carbonate into the reaction kettle and mix them. Put them into a ball mill and grind for 49 minutes. The grinding medium is zirconia beads with a diameter of 0.24 mm. ball;

(2) Add 1.4 parts of white carbon black, 1.9 parts of sodium silicate, and 0.19 parts of dicumyl peroxide to the ball mill, continue grinding for 15 minutes, and obtain a slurry with a fineness of 92 mesh after filtration;

(3) Put the slurry into the reaction kettle, add 2.3 parts of quartz sand and 2.1 parts of ceramic particles, mix thoroughly, melt mix at 190°C for 11 minutes to obtain colloid;

(1) Put 22 parts of silicone rubber, 11 parts of bentonite, 16 parts of propyl hypophosphorous acid, 5 parts of cyanuric acid, and 0.9 parts of nano silica into the reaction kettle and mix them. Put them into a ball mill and grind for 48 minutes. The grinding medium is Zirconia beads with a diameter of 0.24mm;

(2) Add 2.4 parts of high styrene resin, 1.3 parts of white carbon black, 0.7 parts of calcium silicate, 0.29 parts of tert-butyl hydroperoxide, 0.19 parts of dimethacrylate to the ball mill, and continue grinding for 15 minutes. Slurry with fineness of 95 mesh;

(3) Put the slurry into the reaction kettle, add 7 parts of glass fiber and 3.5 parts of ceramic particles, mix thoroughly, melt mix at 192°C for 11 minutes to obtain colloid;

Claims

A corrosion-resistant cable, characterized in that the cable adopts a double-sheath structure, which includes a wear-resistant and corrosion-resistant jacket and a high-temperature and corrosion-resistant jacket; wherein the wear-resistant and corrosion-resistant jacket includes the following parts by mass The number of components: main materials: nitrile rubber 15-20 parts, acrylic resin 12-16 parts, quartz sand 1.2-2.4 parts, ceramic particles 1.6-2.2 parts; flame retardant: aluminum hydroxide 1 Parts to 3 parts, calcium carbonate 0.5 parts to 1.2 parts; reinforcing agent: white carbon black 0.8 parts to 1.5 parts, sodium silicate 0.4 parts to 2 parts; curing agent: dicumyl peroxide 0.1 parts to 0.2 parts;

The high-temperature and corrosion-resistant sheath includes the following components in the following mass fractions: Main ingredients: silicone rubber 14 parts to 23 parts, bentonite 6 parts to 12 parts, glass fiber 3 parts to 8 parts, ceramic particles 2 parts to 3.6 parts; flame retardant: 8 parts to 17 parts of propyl hypophosphorous acid, 2 parts to 6 parts of cyanuric acid, 0.5 parts to 1 part of nano silica; reinforcing agent: 2 parts to 2.5 parts of high styrene resin, white Carbon black 1.1 parts to 1.4 parts, calcium silicate 0.5 parts to 0.8 parts; vulcanizing agent: tert-butyl hydrogen peroxide 0.2 parts to 0.3 parts, dimethacrylate 0.1 parts to 0.2 parts.
The corrosion-resistant cable according to claim 1, wherein the wear-resistant corrosion-resistant sheath and the high-temperature corrosion-resistant sheath are connected by an adhesive substance.
The corrosion-resistant cable according to claim 1, wherein the wear-resistant and corrosion-resistant jacket is located outside the high-temperature and corrosion-resistant jacket.
A method for preparing a corrosion-resistant cable is characterized in that a wear-resistant corrosion-resistant sheath and a high-temperature corrosion-resistant sheath are used as the outermost layer of the cable to obtain a cable product.
The method for preparing a corrosion-resistant cable according to claim 4, wherein the method for preparing the wear-resistant and corrosion-resistant jacket includes the following steps:

(1) Put 15 parts to 20 parts of nitrile rubber, 12 parts to 16 parts of acrylic resin, 1 part to 3 parts of aluminum hydroxide, 0.5 parts to 1.2 parts of calcium carbonate in the reaction kettle, mix them, and put them into a ball mill for grinding 25min～50min, the grinding media is zirconia beads with a diameter of 0.12mm～0.25mm;

(2) Add 0.8 parts to 1.5 parts of white carbon black, 0.4 parts to 2 parts of sodium silicate, 0.1 parts to 0.2 parts of dicumyl peroxide to the ball mill, continue grinding for 5 minutes to 16 minutes, and obtain a fineness of 90 after filtration Slurry of mesh ~ 100 mesh;

(3) Put the slurry into the reaction kettle, add 1.2 parts to 2.4 parts of quartz sand and 1.6 parts to 2.2 parts of ceramic particles, mix thoroughly, melt mix at 160 ℃ to 200 ℃ for 8 min to 12 min to obtain colloid;

(4) Put the colloid into the extruder to extrude it, and then granulate to obtain pellets; the pellets are put into the molding machine to form and cut to obtain a wear-resistant and corrosion-resistant sheath.
The method for preparing a corrosion-resistant cable according to claim 4, wherein the method for preparing the high-temperature and corrosion-resistant jacket includes the following steps:

(1) Put 14 parts to 23 parts of silicone rubber, 6 parts to 12 parts of bentonite, 8 parts to 17 parts of propyl hypophosphorous acid, 2 parts to 6 parts of cyanuric acid, and 0.5 parts to 1 part of nano silica After mixing in the kettle, put it into a ball mill and grind for 25 min to 50 min. The grinding medium is zirconia beads with a diameter of 0.12 mm to 0.25 mm;

(2) Add 2 to 2.5 parts of high styrene resin, 1.1 to 1.4 parts of white carbon, 0.5 to 0.8 parts of calcium silicate, 0.2 to 0.3 parts of tert-butyl hydrogen peroxide, dimethyl to the ball mill After 0.1 parts to 0.2 parts of acrylic ester, continue grinding for 5 minutes to 16 minutes, and obtain a slurry with a fineness of 90 mesh to 100 mesh after filtration;

(3) Put the slurry into the reaction kettle, add 3 to 8 parts of glass fiber and 2 to 3.6 parts of ceramic particles, mix thoroughly, melt mix at 160 to 200°C for 8 to 12 minutes to obtain a colloid;

(4) Put the colloid into the extruder to extrude it, and then granulate to obtain pellets; pellets are put into the molding machine to form and cut to obtain a high temperature and corrosion resistant jacket.