CN103497431B - Oversheath of flame retardant cable and preparation method thereof - Google Patents
Oversheath of flame retardant cable and preparation method thereof Download PDFInfo
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- CN103497431B CN103497431B CN201310472491.5A CN201310472491A CN103497431B CN 103497431 B CN103497431 B CN 103497431B CN 201310472491 A CN201310472491 A CN 201310472491A CN 103497431 B CN103497431 B CN 103497431B
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- oversheath
- flame retardant
- retardant cable
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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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention relates to field of cables, in particular to a kind of oversheath and preparation method thereof of flame retardant cable.The oversheath of this flame retardant cable, according to weight parts, comprise coal gangue particle 43-47 part, aluminium hydroxide 7-9 part, antimonous oxide 5-7 part, terpolymer EP rubber 23-27 part, properties-correcting agent 0.8-1.2 part, vulcanizing agent 10-12 part, stablizer 3-5 part, stearic acid 0.4-0.8 part, paraffin oil 5-7 part and dicumyl peroxide 3-6 part.The oversheath of the flame retardant cable that the present invention provides, reduces the burst size of harmful poison gas in combustion processes, decreases the content of harmful poison gas of scene of fire, to ensure the life security of rescue personnel.
Description
Technical field
The present invention relates to field of cables, in particular to a kind of oversheath and preparation method thereof of flame retardant cable.
Background technology
Flame retardant cable is a kind of conventional cable.Concrete, after referring to the sheath burning of cable, only prolong combustion limited distance and the power cable that can certainly put out, its basic characteristic is that burning is limited in subrange, can not spread, and keeps other various equipment, avoids resulting in greater loss.
But, in the related, after the sheath of cable burns, harmful poison gases such as a large amount of carbon monoxide, hydrogen halide can be produced and spread in scene of fire; And the poison gases such as a large amount of carbon monoxide, hydrogen halide can cause serious threat to the life security of rescue personnel.
Summary of the invention
The object of the present invention is to provide a kind of oversheath of flame retardant cable, to solve the above problems.
A kind of oversheath of flame retardant cable is provided in embodiments of the invention, according to weight parts, coal gangue particle 43-47 part, aluminium hydroxide 7-9 part, antimonous oxide 5-7 part, terpolymer EP rubber 23-27 part, properties-correcting agent 0.8-1.2 part, vulcanizing agent 10-12 part, stablizer 3-5 part, stearic acid 0.4-0.8 part, paraffin oil 5-7 part and dicumyl peroxide 3-6 part.
Additionally provide a kind of making method of oversheath of flame retardant cable in embodiments of the invention, comprise and coal gangue particle is added properties-correcting agent carry out modification, make described coal gangue particle change lipophilicity into by wetting ability; By modified described coal gangue particle and aluminium hydroxide, antimonous oxide and vulcanizing agent mix and blend, obtain the first mixture; Terpolymer EP rubber, stablizer, stearic acid, paraffin oil and dicumyl peroxide is added in described first mixture, and mix and blend, obtain the second mixture; By described second mixture successively by banburying, open refining after obtain the oversheath of described flame retardant cable.
The oversheath of a kind of flame retardant cable of the above embodiment of the present invention, its component comprises coal gangue particle, aluminium hydroxide, antimonous oxide, meanwhile, terpolymer EP rubber, properties-correcting agent, vulcanizing agent, stablizer, stearic acid, paraffin oil and dicumyl peroxide is also added in component.Properties-correcting agent can the surface tissue of coupling coal gangue particle and terpolymer EP rubber, plays the effect of molecular bridge, hydrophilic coal gangue particle can be made to change lipophilicity into; Be beneficial to mixing.Vulcanizing agent can make terpolymer EP rubber plastify, and has the function improving terpolymer EP rubber tensile strength and resistance to deterioration, and stearic acid has the effect of speedup lubrication, and the effect of paraffin oil is combined lubrication, is beneficial to and is mixed by various component; Stablizer is a kind of heat-resistant agent, and its effect is degraded in the process preventing each component from refining at high temperature, and dicumyl peroxide is a kind of linking agent, and its effect is plasticized rubber.Because coal gangue particle has multi-pore structure, it has great internal surface area, is a kind of well flue gas absorption carrier; And aluminium hydroxide, antimonous oxide all have the effect of fire extinguishing, after the sheath burning of flame retardant cable, the function that aluminium hydroxide in oversheath, antimonous oxide all can play fire extinguishing and eliminate smoke, the a large amount of flue gas (poison gas such as carbon monoxide, hydrogen halide) produced in combustion processes is not released in external environment, namely can be absorbed by coal gangue powder, thus reduce the burst size of harmful poison gas in combustion processes, decrease the content of harmful poison gas of scene of fire, to ensure the life security of rescue personnel.
Accompanying drawing explanation
Fig. 1 shows the schema of the oversheath making method of the flame retardant cable that the embodiment of the present invention one provides;
Fig. 2 shows the schema of the oversheath making method of the flame retardant cable that the embodiment of the present invention two provides.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
A kind of oversheath of flame retardant cable is provided in embodiments of the invention, according to weight parts, comprise coal gangue particle 43-47 part, aluminium hydroxide 7-9 part, antimonous oxide 5-7 part, terpolymer EP rubber 23-27 part, properties-correcting agent 0.8-1.2 part, vulcanizing agent 10-12 part, stablizer 3-5 part, stearic acid 0.4-0.8 part, paraffin oil 5-7 part and dicumyl peroxide 3-6 part.
Preferably, according to weight parts, comprise coal gangue particle 44-46 part, aluminium hydroxide 7.5-8.5 part, antimonous oxide 5.5-6.5 part, terpolymer EP rubber 24-26 part, properties-correcting agent 0.8-1.2 part, vulcanizing agent 10.5-11.5 part, stablizer 3.5-4.5 part, stearic acid 0.4-0.8 part, paraffin oil 5.5-6.5 part and dicumyl peroxide 4-6 part.
Preferably, in the present embodiment, in order to the follow-up effect doing to mix in process, have higher requirement to the particle diameter of coal gangue particle, with the particle diameter of coal gangue particle for 6000-7000 order is for preparing, preferred, the particle diameter of coal gangue particle is 6500 orders.
The oversheath of a kind of flame retardant cable of the above embodiment of the present invention, its component comprises coal gangue particle, aluminium hydroxide, antimonous oxide, meanwhile, terpolymer EP rubber, properties-correcting agent, vulcanizing agent, stablizer, stearic acid, paraffin oil and dicumyl peroxide is also added in component.Properties-correcting agent can the surface tissue of coupling coal gangue particle and terpolymer EP rubber, plays the effect of molecular bridge, hydrophilic coal gangue particle can be made to change lipophilicity into; Be beneficial to mixing.Vulcanizing agent can make terpolymer EP rubber plastify, and has the function improving terpolymer EP rubber tensile strength and resistance to deterioration, and stearic acid has the effect of speedup lubrication, and the effect of paraffin oil is combined lubrication, is beneficial to and is mixed by various component; Stablizer is a kind of heat-resistant agent, and its effect is degraded in the process preventing each component from refining at high temperature, and dicumyl peroxide is a kind of linking agent, and its effect is plasticized rubber.Because coal gangue particle has multi-pore structure, it has great internal surface area, is a kind of well flue gas absorption carrier; And aluminium hydroxide, antimonous oxide all have the effect of fire extinguishing, after the sheath burning of flame retardant cable, the function that aluminium hydroxide in oversheath, antimonous oxide all can play fire extinguishing and eliminate smoke, the a large amount of flue gas (poison gas such as carbon monoxide, hydrogen halide) produced in combustion processes is not released in external environment, namely can be absorbed by coal gangue powder, thus reduce the burst size of harmful poison gas in combustion processes, decrease the content of harmful poison gas of scene of fire, to ensure the life security of rescue personnel.
Please refer to Fig. 1, the present embodiment additionally provides a kind of making method of oversheath of flame retardant cable, comprises the following steps:
Step 101: coal gangue particle is added properties-correcting agent and carry out modification, make coal gangue particle change lipophilicity into by wetting ability;
Step 102: by modified coal gangue particle and aluminium hydroxide, antimonous oxide and vulcanizing agent mix and blend, obtain the first mixture;
Step 103: add terpolymer EP rubber, stablizer, stearic acid, paraffin oil and dicumyl peroxide in the first mixture, and mix and blend, obtain the second mixture;
Step 104: by the second mixture successively by banburying, open refining after obtain the oversheath of flame retardant cable.
In order to the oversheath of the flame retardant cable making the embodiment of the present invention one is better applied, more effectively be applied in the making of cable jacket, the present invention also provides embodiment two on the basis of above-described embodiment one, embodiment two is further restriction and increase that the basis to embodiment one is made, is now described in detail and explains:
Embodiment two
Please refer to Fig. 2, the making method of the oversheath of the present embodiment comprises the following steps:
Step 201: by the temperature lower calcination of coal gangue particle at 800-900 DEG C, obtain calcined powder;
In step 201, coal gangue particle is calcined, evaporate to greatest extent to make the moisture contained by its inside, and in the process of calcining, suspension calcining stove can be adopted to be achieved in the process of calcining through 800-900 DEG C (preferably 850 DEG C), intracell for coal gangue particle body crystal water is deviate from (hydroxyl SUI) through high temperature by the object of calcining, organism volatilizees, make the duct in structure defeated logical, improve adsorptive power and activity, specifically, the water-content of the rear coal gangue powder of calcining is lower than 2%.
Step 202: be added in powder modifying equipment by calcined powder and properties-correcting agent, carries out modification, obtains modified coal gangue particle;
After obtaining calcined powder, the operation of modification can be carried out, concrete, properties-correcting agent is added in calcined powder, calcined powder and properties-correcting agent are inserted in powder modifying equipment in the lump, carries out modification, modified coal gangue particle can be obtained, modified coal gangue particle has lipophilicity, is easy to mix with terpolymer EP rubber.
Step 203: by modified coal gangue particle and aluminium hydroxide, antimonous oxide and vulcanizing agent mix and blend, obtain the first mixture;
Wherein, Main Components-aluminium hydroxide, antimonous oxide and vulcanizing agent are mixed with modified coal gangue particle, preferably, in order to the effect to mixing, the time of stirring is 25-35 minute, and preferably, churning time is 30 minutes; In order to realize better mixing effect thoroughly, optionally, the process of stirring can be achieved by being added in high-speed stirring container by various component.
Step 204: add terpolymer EP rubber, stablizer, stearic acid, paraffin oil and dicumyl peroxide in the first mixture, and mix and blend, obtain the second mixture;
After obtaining the first mixture containing main component, need other auxiliary agents to be added in the first mixture, and stir, concrete, the time of stirring is 8-10 minute; Preferably 9 minutes, and the process of whole stirring and evenly mixing can by being achieved in homogenizer.
Step 205: the second mixture is added in Banbury mixer, at the temperature of 145-165 DEG C, banburying 25-30 minute, obtains banburying glue;
Namely the operation the second mixture being carried out banburying is needed after obtaining the second mixture, the operation of banburying can be achieved by Banbury mixer, and in the process of banburying, the component of various mixing can realize the effect of green tack and fusion, after banburying terminates, the banburying glue of colloidal can be obtained; Preferably, in the process of banburying, in order to realize good banburying effect, banburying temperature is 145-165 DEG C; The banburying time is 25-30 minute.
Step 206: banburying glue is placed in mill, carries out first time and opens refining, obtain the blob of viscose that thickness is 4-6 millimeter at the temperature of 80-100 DEG C;
After obtaining the banburying glue of colloidal, need operation banburying glue being carried out out refining, concrete, open in the process of refining in first time, the temperature at 80-100 DEG C can be selected to carry out, the operation of opening refining is for the first time connect by open chain and is achieved, concrete, open in the process of refining in first time, the rotating speed of the transfer roller of mill is set to 60-70 rev/min, the set of time that first time opens refining is 6-8 minute, opens for the first time after having refined and can obtain the blob of viscose that thickness is 4-6 millimeter.
Step 207: blob of viscose is carried out at the temperature of 80-100 DEG C second time and open refining, obtain the offset plate that thickness is 0.8-1.2 millimeter;
First time opens after refining completes, and need the blob of viscose obtained to be carried out the operation that second time opens refining, blob of viscose larger for thickness is pressed into the less offset plate of thickness by the process that second time opens refining, and the temperature that second time opens refining is consistent with the temperature opening refining for the first time.
Obtain after thickness is the offset plate of 0.8-1.2 millimeter, according to different requirements, offset plate to be made the rubber of different in width, to complete whole making processes.
Prove by experiment, the oversheath of this flame retardant cable of the embodiment of the present invention, in the process of burning, poison gas burst size limits flame retardant cable burning release hydrogen halide as HCL < 5mg/g lower than International Power committee 1991-IEC-754-1; Restriction flame retardant cable burns the pH value > 4.3 of the aqueous solution of the corrosive gases discharged, conductance < 100 μ s/cm, the amount of smoke discharged when simultaneously also limit flame retardant cable burning, its transmittance > 60%.
In addition, after the present embodiment is with the structure of the Coal gangue powder after process and the composition of surperficial polymer for main part, the performance of the excellent harmful poison gas of height absorption is produced.
With coal gangue be the flame retardant cable oversheath made of Main Components through fuel oil test, flame retardant resistance reaches standard-required (MT386-1995), and it continues continuous burning time and is not more than 240S, and adsorbing smoke amount is 78%.
In the above-described embodiments, concrete, properties-correcting agent can be trimethoxy hydrogen silane; Vulcanizing agent can be dicumyl peroxide; Stablizer can be 2-mercaptobenzimidazole.
To sum up, after the oversheath burning of this flame retardant cable of the embodiment of the present invention, the function that aluminium hydroxide in oversheath, antimonous oxide all can play fire extinguishing and eliminate smoke, the a large amount of flue gas (poison gas such as carbon monoxide, hydrogen halide) produced in combustion processes is not released in external environment, namely can be absorbed by coal gangue powder, thus reduce the burst size of harmful poison gas in combustion processes, decrease the content of harmful poison gas of scene of fire, to ensure the life security of rescue personnel.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the oversheath of flame retardant cable, it is characterized in that, according to weight parts, comprise coal gangue particle 43-47 part, aluminium hydroxide 7-9 part, antimonous oxide 5-7 part, terpolymer EP rubber 23-27 part, properties-correcting agent 0.8-1.2 part, vulcanizing agent 10-12 part, stablizer 3-5 part, stearic acid 0.4-0.8 part, paraffin oil 5-7 part and dicumyl peroxide 3-6 part;
The making method of the oversheath of described flame retardant cable comprises the following steps:
Coal gangue particle is added properties-correcting agent and carry out modification, make described coal gangue particle change lipophilicity into by wetting ability;
By modified described coal gangue particle and aluminium hydroxide, antimonous oxide and vulcanizing agent mix and blend, obtain the first mixture;
Terpolymer EP rubber, stablizer, stearic acid, paraffin oil and dicumyl peroxide is added in described first mixture, and mix and blend, obtain the second mixture;
By described second mixture successively by banburying, open refining after obtain the oversheath of described flame retardant cable.
2. the oversheath of flame retardant cable according to claim 1, it is characterized in that, according to weight parts, comprise coal gangue particle 44-46 part, aluminium hydroxide 7.5-8.5 part, antimonous oxide 5.5-6.5 part, terpolymer EP rubber 24-26 part, properties-correcting agent 0.8-1.2 part, vulcanizing agent 10.5-11.5 part, stablizer 3.5-4.5 part, stearic acid 0.4-0.8 part, paraffin oil 5.5-6.5 part and dicumyl peroxide 4-6 part.
3. the oversheath of flame retardant cable according to claim 1 and 2, is characterized in that, the particle diameter of described coal gangue particle is 6000-7000 order.
4. the oversheath of flame retardant cable according to claim 1, is characterized in that, coal gangue particle is added properties-correcting agent carries out modification, described coal gangue particle is changed in oil loving step by wetting ability, specifically comprises described;
By the temperature lower calcination of described coal gangue particle at 800-900 DEG C, obtain calcined powder;
Described calcined powder and described properties-correcting agent are added in powder modifying equipment, carry out modification, obtain modified described coal gangue particle.
5. the oversheath of flame retardant cable according to claim 1, it is characterized in that, by modified described coal gangue particle and aluminium hydroxide, antimonous oxide and vulcanizing agent mix and blend, obtain in the step of the first mixture, the time of described stirring is 25-35 minute.
6. the oversheath of flame retardant cable according to claim 1, it is characterized in that, terpolymer EP rubber, stablizer, stearic acid, paraffin oil and dicumyl peroxide is added in described first mixture, and mix and blend, obtain in the step of the second mixture, the time of described stirring is 8-10 minute.
7. the oversheath of flame retardant cable according to claim 1, is characterized in that, described by described second mixture successively by banburying, open refining after obtain in the step of the oversheath of described flame retardant cable, described banburying comprises:
Be added in Banbury mixer by described second mixture, at the temperature of 145-165 DEG C, banburying 25-30 minute, obtains banburying glue.
8. the oversheath of flame retardant cable according to claim 7, is characterized in that, described by described second mixture successively by banburying, open refining after obtain in the step of the oversheath of described flame retardant cable, described in open refining and comprise:
Described banburying glue is placed in mill, at the temperature of 80-100 DEG C, carries out first time open refining, obtain the blob of viscose that thickness is 4-6 millimeter;
Described blob of viscose is carried out at the temperature of 80-100 DEG C second time and open refining, obtain the offset plate that thickness is 0.8-1.2 millimeter.
9. the oversheath of flame retardant cable according to claim 8, is characterized in that, described, described banburying glue is placed in mill, carries out first time and open refining at the temperature of 80-100 DEG C, and obtaining thickness is in the step of the blob of viscose of 4-6 millimeter,
The time that described first time opens refining is 6-8 minute; The rotating speed of the transfer roller of described mill is 60-70 rev/min.
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| CN201310472491.5A CN103497431B (en) | 2013-06-18 | 2013-10-11 | Oversheath of flame retardant cable and preparation method thereof |
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| CN201310240357.2 | 2013-06-18 | ||
| CN2013102403572 | 2013-06-18 | ||
| CN201310240357 | 2013-06-18 | ||
| CN201310472491.5A CN103497431B (en) | 2013-06-18 | 2013-10-11 | Oversheath of flame retardant cable and preparation method thereof |
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| CN103497431B true CN103497431B (en) | 2016-02-17 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497431B (en) * | 2013-06-18 | 2016-02-17 | 山西省水利机械厂 | Oversheath of flame retardant cable and preparation method thereof |
| CN103772829B (en) * | 2014-01-24 | 2016-01-20 | 河南恒发橡塑制品有限公司 | Automotive trim environmental protection flame retardant rubber item and production technique thereof |
| CN104177714A (en) * | 2014-09-10 | 2014-12-03 | 安徽弘毅电缆集团有限公司 | High-stretchability coal gangue modified rubber |
| CN104212078A (en) * | 2014-09-10 | 2014-12-17 | 安徽弘毅电缆集团有限公司 | High-tensile strength ethylene propylene diene monomer and preparation method thereof |
| CN104212077A (en) * | 2014-09-10 | 2014-12-17 | 安徽弘毅电缆集团有限公司 | Modified rubber with high tensile strength and high abrasion resistance |
| CN105949511A (en) * | 2016-05-05 | 2016-09-21 | 华北科技学院 | Coal gangue composite type PVC (polyvinyl chloride) flame retardant and flame retardant material as well as preparation method of flame retardant material |
| CN109390096A (en) * | 2018-10-26 | 2019-02-26 | 江苏宏鹏电气科技有限公司 | A kind of cable |
| CN111048261B (en) * | 2019-10-21 | 2021-09-28 | 东莞福川精密工业股份有限公司 | Anti-aging flame-retardant cable and processing technology |
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| CN1769171A (en) * | 2004-11-01 | 2006-05-10 | 赵宝玉 | Zeolite molecular sieve preparation method |
| CN102061035A (en) * | 2010-06-23 | 2011-05-18 | 上海长宁橡胶制品厂 | Non-halogen fire resistant cable sheath material and production method thereof |
| CN103143320A (en) * | 2013-03-12 | 2013-06-12 | 山东科技大学 | Active carbon/zeolite shaped composite material for removing elemental mercury in coal-burned flue gas and preparation method thereof |
| CN103497431A (en) * | 2013-06-18 | 2014-01-08 | 山西省水利机械厂 | Outer sheath of fire-resistant cable, and production method thereof |
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