CN111944315A - High-strength high-temperature-resistant oil-resistant cable material - Google Patents
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
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Abstract
The invention relates to a high-strength high-temperature-resistant oil-resistant cable material in the technical field of cable materials, which comprises the following components in parts by weight: 30-40 parts of modified ethylene glycol vinyl ester copolymer, 50-62 parts of silicon rubber, 15-20 parts of bisphenol A polyoxyethylene ether, 62-80 parts of nano flame retardant, 2.8-3.2 parts of sensitizer, 1-2 parts of silane coupling agent, 0.8-1.2 parts of antioxidant, 1.6-1.8 parts of silicon lubricant, 0.8-1.8 parts of colorant and 3.8-4.2 parts of molybdenum oxide; according to the invention, the main chain of the modified ethylene-vinyl acetate copolymer is used as a saturated polar ester group, the side chain contains a large number of unsaturated double bonds, the unsaturated double bonds improve the stability of the material, and the high-strength high-temperature resistance performance of the cable material is improved, and meanwhile, the saturated polar ester group and oil are repelled, so that the oil resistance of the cable material is realized, and the high-strength high-temperature resistance oil resistance performance of the cable material is further improved by the mutual cooperation of the saturated polar ester group and the oil.
Description
Technical Field
The invention relates to the technical field of cable materials, in particular to a high-strength high-temperature-resistant oil-resistant cable material.
Background
Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.
The quantity of waste plastics generated in China every year is about 1600 million tons, and as the plastic raw materials belong to chemical synthetic raw materials and cannot be naturally decomposed, the characteristics of no rot and no decomposition become remarkable social problems. The successful strategy for solving the problems of plastic development and environment in developed countries is to implement the "three R" strategy, namely reduction (Reduce) of plastic products, Reuse (Reuse) and recycling (Recycle) of plastic wastes. In all application fields, the landfill of waste plastics is reduced and the negative influence of the plastics on the environment is reduced by mechanical recycling, raw material regeneration, energy recovery and other modes.
With the development of national economy, the demand of cable materials in China is rapidly increased, particularly, the demand of low-smoke, halogen-free, flame-retardant and environment-friendly cable materials is large, and the quality of domestic high-strength, high-temperature-resistant and oil-resistant cable materials cannot meet the market demand.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-strength high-temperature-resistant oil-resistant cable material which has the advantages of high strength, high temperature resistance, excellent oil resistance and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 30-40 parts of modified ethylene glycol vinyl ester copolymer, 50-62 parts of silicon rubber, 15-20 parts of bisphenol A polyoxyethylene ether, 62-80 parts of nano flame retardant, 2.8-3.2 parts of sensitizer, 1-2 parts of silane coupling agent, 0.8-1.2 parts of antioxidant, 1.6-1.8 parts of silicon lubricant, 0.8-1.8 parts of colorant and 3.8-4.2 parts of molybdenum oxide.
Preferably, the high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 33-36 parts of modified ethylene glycol acetate copolymer, 54-58 parts of silicon rubber, 16-17 parts of bisphenol A polyoxyethylene ether, 66-72 parts of nano flame retardant, 3.6-4.2 parts of molybdenum trioxide, 2.9-3.1 parts of sensitizer, 1.3-1.6 parts of silane coupling agent, 0.9-1.1 parts of antioxidant, 1.6-1.8 parts of silicon lubricant, 1.2-1.5 parts of colorant and 3.9-4.1 parts of molybdenum oxide.
Preferably, the high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 35 parts of modified ethylene vinyl oxalate copolymer, 55 parts of silicone rubber, 16 parts of bisphenol A polyoxyethylene ether, 69 parts of nano flame retardant, 4 parts of molybdenum trioxide, 3 parts of sensitizer, 1.4 parts of silane coupling agent, 1 part of antioxidant, 1.7 parts of silicon lubricant, 1.3 parts of colorant and 4 parts of molybdenum oxide.
Preferably, the antioxidant is at least one of antioxidant 1010, antioxidant DLTP and antioxidant 168.
Preferably, the particle size of the molybdenum oxide is 200-300 meshes, and the purity is 99.99%.
A preparation method of a high-strength high-temperature-resistant oil-resistant cable material comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame retardant synergist until the mixture is uniformly mixed, vulcanizing a sample after mixing by using a flat vulcanizing machine, wherein the vulcanizing condition is 160 ℃, the vulcanizing time is 28-32min, the pressure is 4.4-4.6Mpa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanizing is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at the internal mixing temperature of 155-165 ℃;
c. extruding the internally mixed materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips for 1-2 hours at 70 ℃ in a hot air dryer to obtain an initial cable material;
d. and then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at the spraying temperature of 75-85 ℃ and the spraying thickness of 0.05-0.08mm, drying at normal temperature, and then granulating to obtain the high-strength high-temperature-resistant oil-resistant cable material.
Has the advantages that:
the main chain of the modified ethylene-vinyl acetate copolymer is used as a saturated polar ester group, the side chain contains a large number of unsaturated double bonds, the unsaturated double bonds improve the stability of the material, and are beneficial to improving the high-strength high-temperature resistance performance of the cable material, meanwhile, the saturated polar ester group and oil are repelled, so that the oil resistance of the cable material is realized, the high-strength high-temperature resistance oil resistance performance of the cable material is further improved by matching with silicon rubber and bisphenol A polyoxyethylene ether, and in addition, molybdenum oxide is sprayed on the strip-shaped initial cable material and is coated on the surface of the cable material to serve as a high-strength high-temperature-resistant oil-resistant coating, so that the high-strength high-temperature-resistant oil resistance performance of the cable material is improved again. The invention has the excellent comprehensive properties of wear resistance, high electric property, low smoke, no halogen, flame retardance, good fluidity and the like, and the environmental protection property meets the requirements of wires and cables. The preparation method is simple, has high production efficiency and is beneficial to enterprise production.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 40 parts of modified ethylene vinyl oxalate copolymer, 62 parts of silicone rubber, 15 parts of bisphenol A polyoxyethylene ether, 62 parts of nano flame retardant, 2.9 parts of sensitizer, 1 part of silane coupling agent, 1.2 parts of antioxidant, 1.8 parts of silicon lubricant, 1.8 parts of colorant and 3.8 parts of molybdenum oxide, wherein the antioxidant is antioxidant 1010, the particle size of the molybdenum oxide is 200 meshes, and the purity is 99.99%.
A preparation method of a high-strength high-temperature-resistant oil-resistant cable material comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame retardant synergist until the mixture is uniformly mixed, vulcanizing a sample after mixing by using a flat vulcanizing machine under the vulcanizing condition of 160 ℃, vulcanizing time of 32min and pressure of 4.6Mpa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanization is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at the internal mixing temperature of 155 ℃;
c. extruding the internally mixed materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips in a hot air dryer for 1 hour at 70 ℃ to obtain an initial cable material;
d. and then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at the spraying temperature of 85 ℃ and the spraying thickness of 0.05mm, and granulating after drying at normal temperature to obtain the high-strength high-temperature-resistant oil-resistant cable material.
Example 2:
a high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 35 parts of modified ethylene vinyl oxalate copolymer, 50 parts of silicone rubber, 20 parts of bisphenol A polyoxyethylene ether, 80 parts of nano flame retardant, 3.1 parts of sensitizer, 1.3 parts of silane coupling agent, 0.9 part of antioxidant, 1.6 parts of silicon lubricant, 1.5 parts of colorant and 3.9 parts of molybdenum oxide, wherein the antioxidant is antioxidant DLTP, the particle size of the molybdenum oxide is 300 meshes, and the purity is 99.99%.
A preparation method of a high-strength high-temperature-resistant oil-resistant cable material comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame-retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame-retardant synergist until the mixture is uniformly mixed, vulcanizing a sample after mixing by using a flat vulcanizing machine under the vulcanizing condition of 160 ℃, the vulcanizing time is 28min, the pressure is 4.4MPa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanizing is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at the internal mixing temperature of 155 ℃;
c. extruding the internally mixed materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips in a hot air dryer at 70 ℃ for 1.3h to obtain an initial cable material;
d. and then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at the spraying temperature of 85 ℃ and the spraying thickness of 0.06mm, and granulating after drying at normal temperature to obtain the high-strength high-temperature-resistant oil-resistant cable material.
Example 3:
a high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 35 parts of modified ethylene-vinyl acetate copolymer, 55 parts of silicone rubber, 16 parts of bisphenol A polyoxyethylene ether, 69 parts of nano flame retardant, 3 parts of sensitizer, 1.4 parts of silane coupling agent, 1 part of antioxidant, 1.7 parts of silicon lubricant, 1.3 parts of colorant and 4 parts of molybdenum oxide, wherein the antioxidant is antioxidant 168, the particle size of the molybdenum oxide is 250 meshes, and the purity is 99.99%.
A preparation method of a high-strength high-temperature-resistant oil-resistant cable material comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame-retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame-retardant synergist until the mixture is uniformly mixed, vulcanizing a sample after mixing by using a flat vulcanizing machine under the vulcanizing condition of 160 ℃, the vulcanizing time is 29min, the pressure is 4.5Mpa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanizing is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at a mixing temperature of 158 ℃;
c. extruding the internally mixed materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips in a hot air dryer at 70 ℃ for 1.5 hours to obtain an initial cable material;
d. and then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at the spraying temperature of 75 ℃ and the spraying thickness of 0.07mm, and granulating after drying at normal temperature to obtain the high-strength high-temperature-resistant oil-resistant cable material.
Example 4:
a high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 38 parts of modified ethylene vinyl oxalate copolymer, 52 parts of silicone rubber, 19 parts of bisphenol A polyoxyethylene ether, 72 parts of nano flame retardant, 3.1 parts of sensitizer, 1.6 parts of silane coupling agent, 1.1 parts of antioxidant, 1.7 parts of silicon lubricant, 0.8 part of colorant and 4.2 parts of molybdenum oxide, wherein the antioxidant is antioxidant 1010 and antioxidant DLTP, the particle size of the molybdenum oxide is 200 meshes, and the purity is 99.99%.
A preparation method of a high-strength high-temperature-resistant oil-resistant cable material comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame-retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame-retardant synergist until the mixture is uniform, vulcanizing a sample after mixing by using a flat vulcanizing machine under the vulcanizing condition of 160 ℃, vulcanizing time for 30min and pressure of 4.4MPa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanization is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at the internal mixing temperature of 162 ℃;
c. extruding the internally mixed materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips in a hot air dryer at 70 ℃ for 1.8 hours to obtain an initial cable material;
d. and then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at 78 ℃ and the spraying thickness of 0.08mm, drying at normal temperature, and then granulating to obtain the high-strength high-temperature-resistant oil-resistant cable material.
Example 5:
a high-strength high-temperature-resistant oil-resistant cable material comprises the following components in parts by weight: 40 parts of modified ethylene vinyl oxalate copolymer, 59 parts of silicone rubber, 17 parts of bisphenol A polyoxyethylene ether, 75 parts of nano flame retardant, 3.2 parts of sensitizer, 2 parts of silane coupling agent, 0.8 part of antioxidant, 18 parts of silicon lubricant, 1.1 parts of colorant and 4.1 parts of molybdenum oxide, wherein the antioxidant comprises antioxidant 1010, antioxidant DLTP and antioxidant 168, the particle size of the molybdenum oxide is 300 meshes, and the purity is 99.99%.
A preparation method of a high-strength high-temperature-resistant oil-resistant cable material comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame-retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame-retardant synergist until the mixture is uniform, vulcanizing a sample after mixing by using a flat vulcanizing machine under the vulcanizing condition of 160 ℃, the vulcanizing time is 31min, the pressure is 4.6Mpa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanizing is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at the internal mixing temperature of 164 ℃;
c. extruding the internally mixed materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips in a hot air dryer at 70 ℃ for 2 hours to obtain an initial cable material;
d. and then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at the spraying temperature of 81 ℃ and the spraying thickness of 0.06mm, and granulating after drying at normal temperature to obtain the high-strength high-temperature-resistant oil-resistant cable material.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The high-strength high-temperature-resistant oil-resistant cable material is characterized by comprising the following components in parts by weight: 30-40 parts of modified ethylene glycol vinyl ester copolymer, 50-62 parts of silicon rubber, 15-20 parts of bisphenol A polyoxyethylene ether, 62-80 parts of nano flame retardant, 2.8-3.2 parts of sensitizer, 1-2 parts of silane coupling agent, 0.8-1.2 parts of antioxidant, 1.6-1.8 parts of silicon lubricant, 0.8-1.8 parts of colorant and 3.8-4.2 parts of molybdenum oxide.
2. The high-strength high-temperature-resistant oil-resistant cable material as claimed in claim 1, wherein the cable material comprises the following components in parts by weight: 33-36 parts of modified ethylene glycol vinyl ester copolymer, 54-58 parts of silicon rubber, 16-17 parts of bisphenol A polyoxyethylene ether, 66-72 parts of nano flame retardant, 2.9-3.1 parts of sensitizer, 1.3-1.6 parts of silane coupling agent, 0.9-1.1 parts of antioxidant, 1.6-1.8 parts of silicon lubricant, 1.2-1.5 parts of colorant and 3.9-4.1 parts of molybdenum oxide.
3. The high-strength high-temperature-resistant oil-resistant cable material as claimed in claim 1, wherein the cable material comprises the following components in parts by weight: 35 parts of modified ethylene vinyl oxalate copolymer, 55 parts of silicone rubber, 16 parts of bisphenol A polyoxyethylene ether, 69 parts of nano flame retardant, 3 parts of sensitizer, 1.4 parts of silane coupling agent, 1 part of antioxidant, 1.7 parts of silicon lubricant, 1.3 parts of colorant and 4 parts of molybdenum oxide.
4. The high-strength high-temperature-resistant oil-resistant cable material as claimed in claim 1, wherein the antioxidant is at least one of antioxidant 1010, antioxidant DLTP, antioxidant 168.
5. The cable material as claimed in claim 1, wherein the molybdenum oxide has a particle size of 200-300 mesh and a purity of 99.99%.
6. A preparation method of a high-strength high-temperature-resistant oil-resistant cable material is characterized by comprising the following steps: the preparation method comprises the following steps:
a. uniformly mixing the ethylene-vinyl acetate copolymer, the molecular sieve and the flame retardant synergist according to a formula ratio of 60:39:1 by adopting a double-roller mixing mill, wherein the mixing process comprises firstly plasticating the ethylene-vinyl acetate copolymer for 15min, then continuously mixing for more than 30min according to the conditions of firstly adding the molecular sieve and then adding the flame retardant synergist until the mixture is uniformly mixed, vulcanizing a sample after mixing by using a flat vulcanizing machine, wherein the vulcanizing condition is 160 ℃, the vulcanizing time is 28-32min, the pressure is 4.4-4.6Mpa, and obtaining the modified ethylene-vinyl acetate copolymer after the vulcanizing is finished;
b. pouring the modified ethylene-vinyl acetate copolymer, silicon rubber, bisphenol A polyoxyethylene ether, a nano flame retardant, molybdenum trioxide, a sensitizer, a silane coupling agent, an antioxidant, a silicon lubricant and a colorant into an internal mixer, and mixing uniformly at the mixing temperature of 155-165 ℃.
c. Extruding the banburied materials into strips through a double-screw extruder and a single-screw extruder, and drying the strips for 1-2 hours at 70 ℃ in a hot air dryer to obtain the initial cable material.
d. And then placing the initial cable material in a powder sprayer, uniformly spraying glue on the strip-shaped initial cable material, spraying molybdenum oxide on the strip-shaped initial cable material at the spraying temperature of 75-85 ℃ and the spraying thickness of 0.05-0.08mm, drying at normal temperature, and then granulating to obtain the high-strength high-temperature-resistant oil-resistant cable material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101367714A (en) * | 2008-08-25 | 2009-02-18 | 杭州白浪助剂有限公司 | Preparation method of bisphenol A polyethenoxy ether toughening agent |
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Application publication date: 20201117 |