CN112920487A - Low-temperature-resistant antibacterial flame-retardant color development early warning cable material and preparation method thereof - Google Patents
Low-temperature-resistant antibacterial flame-retardant color development early warning cable material and preparation method thereof Download PDFInfo
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- CN112920487A CN112920487A CN202110104247.8A CN202110104247A CN112920487A CN 112920487 A CN112920487 A CN 112920487A CN 202110104247 A CN202110104247 A CN 202110104247A CN 112920487 A CN112920487 A CN 112920487A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention provides a low-temperature-resistant antibacterial flame-retardant color-developing early warning cable material and a preparation method thereof, wherein the cable material comprises the following components in parts by weight: 100 parts of metallocene polyethylene, 30-50 parts of fluorocarbon resin, 10-20 parts of compatibilization resin, 10-20 parts of polycaprolactone resin, 2-8 parts of silane coupling agent, 60-80 parts of flame retardant and 30-50 parts of color developing agent. The low-temperature-resistant antibacterial flame-retardant color development early warning cable material provided by the invention takes metallocene polyethylene as a main resin, and the compatibilizer resin, the polycaprolactone resin, the silane coupling agent, the flame retardant, the color developing agent and the fluorocarbon resin are added, so that the obtained cable material has good low-temperature-resistant, antibacterial and flame-retardant properties, and has a color development early warning function, the color developing agent absorbs heat at a high temperature to dehydrate so as to change the color of the cable material, the water loss condition of the cable can be intuitively judged, and the cable material can be replaced as soon as possible under the conditions of high-temperature aging and the like of the cable to prevent the occurrence.
Description
The technical field is as follows:
the invention relates to the technical field of low-temperature-resistant antibacterial flame-retardant color development early warning cable materials, and particularly relates to a low-temperature-resistant antibacterial flame-retardant color development early warning cable material and a preparation method thereof.
Background art:
the electric wire cable is the important equipment of electric power undertaking, and in the in-process of cable practical application, because the influence of external factor and the reason of cable self probably cause the cable condition of catching fire, because cable exterior material can release toxic gas and dense cigarette after the burning in the combustion process, consequently not only can cause personnel's equipment loss, also probably cause the environmental pollution condition. Therefore, the development of halogen-free flame-retardant cables is a hot spot of research in various countries. However, the existing halogen-free flame-retardant cable has poor low temperature resistance and antibacterial performance, does not have a color development early warning function, and cannot visually judge the water loss condition of the cable to prevent the water loss condition from happening in the bud.
The invention content is as follows:
the invention aims to provide a low-temperature-resistant antibacterial flame-retardant color-developing early warning cable material capable of solving the problems and a preparation method thereof, aiming at the defects of the prior art.
The technical scheme for realizing the purpose of the invention is as follows: the low-temperature-resistant antibacterial flame-retardant color development early warning cable material comprises the following raw materials in parts by weight:
preferably, the metallocene polyethylene (MLLDPE) has a solution flow rate of 0.5-2.5g/10min and the comonomer formula is CH2＝CH-CxH2x+1And the number X of branched C atoms is not less than 6.
Preferably, the fluorine content of the fluorocarbon resin is more than or equal to 20 percent, and the acid value is more than or equal to 1000 mgKOH/g. The fluorocarbon resin improves weather resistance and oil resistance, and the fluorocarbon resin with high acid value is selected to improve the compatibility with the inorganic filler.
Preferably, the compatibilizing resin is one or more of Cellulose Acetate Butyrate (CAB), Cellulose Acetate Phthalate (CAP), and polyvinyl butyral (PVB). Can improve the compatibility with inorganic filler and improve the toughness.
Preferably, the molecular weight of the polycaprolactone resin is more than or equal to 100000, and the melt flow rate is 1.0-3.0g/10 min. The low temperature resistance can be improved.
Preferably, the silane coupling agent is a silane coupling agent containing an amino group or an epoxy group, and can be one or more of KH550, KH560, KH792 and DL 602.
Preferably, the flame retardant is one or two of nano magnesium hydroxide and nano aluminum hydroxide.
Preferably, the color developing agent is copper sulfate pentahydrate. Meanwhile, the blue vitriol is also an antibacterial agent, so that the damage of algae and bacteria to the cable in the natural environment can be reduced.
In addition, the invention also provides a preparation method of the low-temperature-resistant antibacterial flame-retardant color-developing early warning cable material, which comprises the following steps: weighing various raw materials according to a formula, firstly mixing the compatibilization resin, the polycaprolactone resin, the silane coupling agent, the flame retardant and the color developing agent, preheating and stirring for 30-60min at 80-120 ℃, then adding the metallocene polyethylene, putting into an internal mixer, carrying out internal mixing for 10-30min at the internal mixing temperature of 120 ℃, adding the fluorocarbon resin, uniformly mixing, extruding and granulating to obtain the cable material.
The low-temperature-resistant antibacterial flame-retardant color-developing early warning cable material and the preparation method thereof have the beneficial effects that:
the invention provides a low-temperature-resistant antibacterial flame-retardant color development early warning cable material, which takes metallocene polyethylene as a main body resin, and is added with a compatibilization resin, a polycaprolactone resin, a silane coupling agent, a flame retardant, a color developing agent and a fluorocarbon resin, so that the obtained cable material has good low-temperature-resistant, antibacterial and flame-retardant properties, and has a color development early warning function, the color developing agent absorbs heat at a high temperature and dehydrates to change the color of the cable material, the water loss condition of the cable can be intuitively judged, and the cable material can be replaced as soon as possible under the conditions of high-temperature aging and the like of the cable to prevent the occurrence of the situation in.
The specific implementation mode is as follows:
the following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention and to clearly and clearly define the scope of the present invention.
Example 1
The low-temperature-resistant antibacterial flame-retardant color development early warning cable material comprises the following raw materials in parts by weight:
wherein the metallocene polyethylene solution flow rate is 0.5g/10min, and the molecular formula of the comonomer is in accordance with CH2＝CH-CxH2x+1 one or more vinyl monomers and the number of branched C atoms X is greater than or equal to 6. The fluorine content of the fluorocarbon resin is more than or equal to 20 percent, and the acid value is more than or equal to 1000 mgKOH/g.
The compatibilization resin is cellulose acetate butyrate, the molecular weight of the polycaprolactone resin is more than or equal to 100000, and the flow rate of a solvent is 1.0-3.0g/10 min. The silane coupling agent is an amino-containing silane coupling agent. The flame retardant is 10 parts of nano magnesium hydroxide and 50 parts of nano aluminum hydroxide. The color developing agent is copper sulfate pentahydrate.
Example 2
The low-temperature-resistant antibacterial flame-retardant color development early warning cable material comprises the following raw materials in parts by weight:
wherein the compatibilization resin is cellulose acetate phthalate. The silane coupling agent is a silane coupling agent containing an epoxy group. The flame retardant is 15 parts of nano magnesium hydroxide and 55 parts of nano aluminum hydroxide.
The other conditions were the same as in example 1.
Example 3
The low-temperature-resistant antibacterial flame-retardant color development early warning cable material comprises the following raw materials in parts by weight:
wherein the compatibilization resin is polyvinyl butyral. The silane coupling agent is a silane coupling agent containing an epoxy group. The flame retardant is 20 parts of nano magnesium hydroxide and 60 parts of nano aluminum hydroxide.
The other conditions were the same as in example 1.
The preparation method of the low-temperature-resistant antibacterial flame-retardant color-developing early-warning cable material in the embodiment 1 to 3 comprises the following steps: weighing various raw materials according to the formulas of the embodiments 1, 2 and 3, firstly mixing the compatibilization resin, the polycaprolactone resin, the silane coupling agent, the flame retardant and the color developing agent, preheating and stirring at 80-120 ℃ for 30-60min, then adding the metallocene polyethylene, putting into an internal mixer, internally mixing for 10-30min at the internal mixing temperature of 120-160 ℃, then adding the fluorocarbon resin, uniformly mixing, extruding and granulating to obtain the cable material.
Comparative example 1
The cable material comprises the following raw materials in parts by weight:
wherein the metallocene polyethylene solution flow rate is 0.5g/10min, and the molecular formula of the comonomer is in accordance with CH2One or more vinyl monomers of CH-CxH2X +1, and the number X of branched C atoms is more than or equal to 6. The compatibilization resin is cellulose acetate butyrate, the molecular weight of the polycaprolactone resin is more than or equal to 100000, and the melt flow rate is 1.0-3.0g/10 min. The silane coupling agent is an amino-containing silane coupling agent. The flame retardant is 10 parts of nano magnesium hydroxide and 20 parts of nano aluminum hydroxide.
Comparative example 1 a method for preparing a cable material comprises the following steps: weighing various raw materials according to a formula, firstly mixing the compatibilization resin, the polycaprolactone resin, the silane coupling agent and the flame retardant, preheating and stirring for 30-60min at 80-120 ℃, then adding the metallocene polyethylene, putting into an internal mixer, carrying out internal mixing for 10-30min at the internal mixing temperature of 120-.
Comparative example 2
The cable material comprises the following raw materials in parts by weight:
wherein the metallocene polyethylene solution flow rate is 0.5g/10min, and the molecular formula of the comonomer is in accordance with CH2＝CH-CxH2x+1 one or more vinyl monomers and the number of branched C atoms X is greater than or equal to 6. The fluorine content of the fluorocarbon resin is more than or equal to 20 percent, and the acid value is more than or equal to 1000 mgKOH/g.
The silane coupling agent is an amino-containing silane coupling agent. The flame retardant comprises 10 parts of nano magnesium hydroxide and 50 parts of nano aluminum hydroxide.
Comparative example 2 a method for preparing a cable material comprises the following steps: weighing various raw materials according to a formula, firstly mixing a silane coupling agent and a flame retardant, preheating and stirring for 30-60min, then adding metallocene polyethylene, putting into an internal mixer, carrying out internal mixing for 10-30min at the internal mixing temperature of 120-.
The cable materials prepared in the above examples and comparative examples were subjected to performance tests, and the results are shown in the following table:
TABLE 1 Normal temperature mechanical Properties data
| Test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Tensile Strength (MPa) | 25 | 21 | 19 | 27 | 29 |
| Elongation at Break (%) | 233 | 256 | 275 | 198 | 177 |
Note: the mechanical property testing method comprises the following steps: ASTM D-882.
TABLE 2 Low temperature mechanical Properties data
| Test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Tensile Strength (MPa) | 36 | 33 | 31 | 38 | 32 |
| Elongation at Break (%) | 169 | 176 | 183 | 75 | 36 |
Note: after 24 hours of storage at-20 ℃ the tensile test at-20 ℃ is carried out
As can be seen from tables 1 and 2, the elongation at break of examples 1, 2 and 3 at low temperature is reduced by 27-33%, the elongation at break of comparative examples is reduced by 62-79%, and the low temperature resistance of comparative examples 1 and 2 is obviously deviated, which shows that the cable material of the present invention has good low temperature resistance.
TABLE 3 oil resistance test
| Test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Tensile Strength (MPa) | 25 | 22 | 19 | 11 | 28 |
| Elongation at Break (%) | 235 | 251 | 279 | 369 | 186 |
Note: test oil No. IRM902 test oil 70 ℃ for 168 hours after soaking for testing mechanical properties
As can be seen from table 3, the mechanical properties of examples 1, 2 and 3 were not changed before and after the oil resistance test, indicating that the oil resistance of the present invention is better. The tensile strength of comparative example 1 is reduced by 60%, the elongation at break is increased by 86%, which is caused by erosion and swelling of the test oil, and the difference between the oil resistance test of comparative example 2 and the oil resistance test of comparative example 2 is small.
TABLE 4 flame retardancy test
Note: the limiting oxygen index LOI test, the samples of each example and comparative example were subjected to LOI data in 3 states of initial state → dehydration by heating → recovery at ordinary temperature, respectively.
As can be seen from Table 4, the initial LOI of examples 1, 2 and 3 is not less than 30, the flame retardance is excellent, and whether the color change early warning cable is aged or not can be observed, and whether the blue color can be recovered in 72H or not can be observed to confirm whether the cable can be used continuously or not. Has better color-developing early warning function.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The low-temperature-resistant antibacterial flame-retardant color-developing early-warning cable material is characterized by comprising the following raw materials in parts by weight:
2. the low temperature resistant antibacterial flame retardant color development early warning cable material as claimed in claim 1, wherein the metallocene polyethylene solution flow rate is 0.5-2.5g/10min, and the molecular formula of the comonomer is in accordance with CH2＝CH-CxH2x+1 one or more vinyl monomers and the number of branched C atoms X is greater than or equal to 6.
3. The low-temperature-resistant antibacterial flame-retardant color-development early-warning cable material as claimed in claim 1, wherein the fluorine content of the fluorocarbon resin is not less than 20%, and the acid value is not less than 1000 mgKOH/g.
4. The low temperature resistant antibacterial flame retardant color development early warning cable material according to claim 1, wherein the compatibilizer resin is one or more of cellulose acetate butyrate, cellulose acetate phthalate and polyvinyl butyral.
5. The low-temperature-resistant antibacterial flame-retardant color-development early-warning cable material as claimed in claim 1, wherein the molecular weight of the polycaprolactone resin is not less than 100000, and the melt flow rate is 1.0-3.0g/10 min.
6. The low temperature resistant antibacterial flame retardant color development early warning cable material according to claim 1, wherein the silane coupling agent is a silane coupling agent containing amino or epoxy groups.
7. The low-temperature-resistant antibacterial flame-retardant color-development early-warning cable material as claimed in claim 1, wherein the flame retardant is one or two of nano magnesium hydroxide and nano aluminum hydroxide.
8. The low temperature resistant antibacterial flame retardant color development early warning cable material as claimed in claim 1, wherein the color development agent is copper sulfate pentahydrate.
9. The preparation method of the low-temperature-resistant antibacterial flame-retardant color-developing early warning cable material as claimed in any one of claims 1 to 8, characterized by comprising the following steps: weighing various raw materials according to a formula, firstly mixing the compatibilization resin, the polycaprolactone resin, the silane coupling agent, the flame retardant and the color developing agent, preheating and stirring for 30-60min at 80-120 ℃, then adding the metallocene polyethylene, putting into an internal mixer, carrying out internal mixing for 10-30min at the internal mixing temperature of 120 ℃, adding the fluorocarbon resin, uniformly mixing, extruding and granulating to obtain the cable material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110104247.8A CN112920487A (en) | 2021-01-26 | 2021-01-26 | Low-temperature-resistant antibacterial flame-retardant color development early warning cable material and preparation method thereof |
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| CN202110104247.8A CN112920487A (en) | 2021-01-26 | 2021-01-26 | Low-temperature-resistant antibacterial flame-retardant color development early warning cable material and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949570A (en) * | 2016-06-03 | 2016-09-21 | 繁昌县菲德通讯材料设计有限公司 | Cable material with excellent mechanical performance |
| CN107540920A (en) * | 2016-06-28 | 2018-01-05 | 中国石油化工股份有限公司 | Metallocene PE composition and preparation method thereof |
| CN207097531U (en) * | 2017-08-08 | 2018-03-13 | 宏胜电线电缆股份有限公司 | Develop the color anti-aging cable |
| CN112094471A (en) * | 2020-09-22 | 2020-12-18 | 中电保力（北京）科技有限公司 | Composite test material for testing whether cable is water-entering or not and preparation method and application thereof |
-
2021
- 2021-01-26 CN CN202110104247.8A patent/CN112920487A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949570A (en) * | 2016-06-03 | 2016-09-21 | 繁昌县菲德通讯材料设计有限公司 | Cable material with excellent mechanical performance |
| CN107540920A (en) * | 2016-06-28 | 2018-01-05 | 中国石油化工股份有限公司 | Metallocene PE composition and preparation method thereof |
| CN207097531U (en) * | 2017-08-08 | 2018-03-13 | 宏胜电线电缆股份有限公司 | Develop the color anti-aging cable |
| CN112094471A (en) * | 2020-09-22 | 2020-12-18 | 中电保力（北京）科技有限公司 | Composite test material for testing whether cable is water-entering or not and preparation method and application thereof |
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