CN109438855A - The preparation method of soft type high thermal stability power cable low-smoke halogen-free material - Google Patents
The preparation method of soft type high thermal stability power cable low-smoke halogen-free material Download PDFInfo
- Publication number
- CN109438855A CN109438855A CN201811021504.6A CN201811021504A CN109438855A CN 109438855 A CN109438855 A CN 109438855A CN 201811021504 A CN201811021504 A CN 201811021504A CN 109438855 A CN109438855 A CN 109438855A
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- Prior art keywords
- rubber
- parts
- thermal stability
- propylene diene
- ethylene propylene
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Abstract
A kind of preparation method of soft type high thermal stability power cable low-smoke halogen-free material of the present invention, comprising the following steps: 90 parts of addition mixers of ethylene propylene diene rubber are subjected to mixing molding；Zinc oxide, stearic acid, paraffin, stabilizer, 4.4 a pair ofs (2.2- dimethyl benzyl) diphenylamines, 2-mercaptobenzimidazole, modified calcinated argil are sequentially added, is kneaded uniform；The ethylene propylene diene rubber is the ethylene propylene diene rubber of DOW Chemical production, ethylene contents are 70 ~ 85%, Third monomer, that is, E type Asia vinyl norbornene ENB content is 0.5 ~ 5%, Mooney viscosity is 15 ~ 50, the zinc oxide and stearic acid 10:1 in mass ratio mixing, the modified calcinated argil surface are modified by silane coupling A -172；The material of acquisition is carried out to stirring on a mill and cuts volume, after be put into filter rubber machine and carry out filter rubber, strainer is 2 layers, and filter rubber temperature control is at 100 ~ 130 DEG C.Dielectric strength of the present invention is higher, and thermal stability is good, and the high temperature ageing of resistance to 180 degree is had excellent performance, and by 180 degree aging in 10 days, the change rate of elongation is all within 40%.
Description
Technical field
The present invention relates to power cable flame retardant insulation material technical fields, have and are related to a kind of power cable fire retardant insulating
The preparation method of material.
Background technique
Crosslinked polyethylene (XLPE) insulating materials is quite extensive in midium voltage cable application, but low-temperature pliability, resistance to
Water tree, resistance to electricity tree and corona-resistance property etc. are still insufficient.With XLPE, PE Insulation Material is compared, and EP rubbers has very high
Operational reliability and other advantages, such as high moisture resistance properties, electrically and mechanically performance hardly declines after immersion, and water-fast tree is formed
Ability is good, and Inverter fed motor and heat resistance are good, and coefficient of thermal expansion is small, and structural stability is good.With rubber production, processing is kneaded and vulcanization
The technology of technique etc. develops, and reliability of the third glue of second for medium-pressure power cable is continuously improved, in cable production
Dosage be also continuously increased.
In recent years with the high speed development of China's economic, the contradiction of energy supply anxiety is more and more prominent, and will continue very
For a long time.All parts of the country start to develop power infrastructures, and thermal power plant, wind park and nuclear power station start largely to build.According to electricity
The design requirement of factory is needed using a large amount of cable as enclosed busbar, and the cable model specification of design is 8.7/15kV.And
The third insulated cable of second that domestic coal mine mobile substation midium voltage cable, oil platform midium voltage cable and cable for ship use also is got over
Come more.
Domestic to have 103601985 A of patent CN for the third Insulation Material of midium voltage cable second at present, which lacks there are following
Point:
1, the patent has selected second third and ethyl butyric rubber to be used in mixed way, and two kinds of rubber are different for the solubility of vulcanizing agent,
It can be because caused by curingprocess rate be different the case where mechanical degradation.
2, fume colloidal silica is used as reinforcing agent, and the Mooney viscosity that vapor phase method carbon black will lead to is ramped, led
It causes processing and squeezes out difficult, and fume colloidal silica partial size is more carefully difficult to disperse powder easy to form to cause punch through.
3, it selects [β-(3, the 5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 1010 of anti-aging agent four and prevents old
Agent 4,4'- thiobis (6- tert-butyl -3- methylphenol) 300, and dosage has greatly 10 ~ 20 parts, and two kinds of anti-aging agents belong to phenol
Class anti-aging agent has large effect to peroxide vulcanizing system, can be because undercure causes tensile strength to decline and insulate
The serious flattening of core when core stranding, thus such anti-aging agent is chiefly used in cable material of polyolefin.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of soft type high thermal stability power cable low-smoke halogen-free material,
The power cable that the preparation method obtains is big with flame retardant insulation material tensile strength, and elongation at break is long, and state of cure (vulcanization) is high, stretches forever
Long deformation comparison is small, ensure that and does not flatten mutually when stranding after being extruded into insulated wire cores, and excellent electric properties, dielectric strength is higher,
Thermal stability is good.
To achieve the above object of the invention, the technical solution adopted by the present invention is that: a kind of soft type high thermal stability electric power electricity
The preparation method of cable low-smoke halogen-free material, comprising the following steps:
Step 1: 90 parts of addition mixers of ethylene propylene diene rubber are carried out mixing molding；
Step 2: sequentially adding 6 parts of zinc oxide, 0.6 part of stearic acid, 6 parts of paraffin, 3 parts of stabilizer, 4.4 a pair ofs (2.2- dimethyl
Benzyl) 1 part of diphenylamines, 3 parts of 2-mercaptobenzimidazole, modified 70 parts of calcinated argil, it is kneaded uniform；The ethylene propylene diene rubber is
The ethylene propylene diene rubber of DOW Chemical production, ethylene contents are 70 ~ 85%, and Third monomer, that is, E type Asia vinyl norbornene ENB contains
Amount is 0.5 ~ 5%, and Mooney viscosity is 15 ~ 50, the zinc oxide and stearic acid 10:1 in mass ratio mixing, the modified calcining pottery
Native surface is modified by silane coupling A -172；
Step 3: discharging, discharge temp is lower than 130 DEG C；
Step 4: carry out stirring on a mill and cut volume the material that step 3 obtains, after be put into and filter rubber machine and carry out filter rubber, strainer is
2 layers, filter rubber temperature control is at 100 ~ 130 DEG C；
Step 5: the sizing material after filter rubber is put into mixer and 6 parts of cumyl peroxide and triallyl isocyanide urea is added
3 parts of acid esters, mixing time 1min, discharging, discharge temp is lower than 100 DEG C；
Step 6: sizing material is carried out to stirring on a mill cuts volume, after be put into filter rubber machine and carry out filter rubber, strainer is 3 layers, filters rubber temperature
Degree control is at 90 ~ 100 DEG C；
It turns refining, Bao Tong 2 ~ 4 times, cuts cold after volume is sent to stone roller page machine stone roller page Step 7: the sizing material after filter rubber is put into open mill
But it encapsulates；
The ethylene propylene diene rubber is the ethylene propylene diene rubber of DOW Chemical production, and ethylene contents are 70 ~ 85%, Third monomer, that is, E
Type Asia vinyl norbornene ENB content is 0.5 ~ 5%, and Mooney viscosity is 15 ~ 50；
The vulcanizing activator is the mixture that zinc oxide and stearic acid 10:1 in mass ratio are mixed；
The modified calcinated argil surface is modified by silane coupling A -172；
The stabilizer is 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid or 1- butyl -3- methyl miaow
One of azoles thiocyanate ion liquid.
The further improved technical solution of above-mentioned technical proposal is as follows:
1. in above scheme, 4.4 a pair of (2.2- dimethyl benzyl) diphenylamines and 2-mercaptobenzimidazole MB according to 1:1 ~
6 mass ratioes compound.
2. it is 40 ~ 100 mesh that strainer, which has two layers of internal layer, in above scheme, in the step 4, outer layer is 60 ~ 180 mesh.
3. it is 40 ~ 100 mesh that strainer, which has three layers of internal layer, in above scheme, in the step 6, middle layer is 50 ~ 100 mesh, most
Outer layer is 60 ~ 180 mesh.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
The preparation method of soft type high thermal stability power cable low-smoke halogen-free material of the present invention, tensile strength is big, and fracture is stretched
Long rate is long, and state of cure (vulcanization) is high, and tensile set is smaller, ensure that and does not flatten mutually when stranding after being extruded into insulated wire cores, electricity
Gas is had excellent performance, and dielectric strength is higher, and thermal stability is good, and the high temperature ageing of resistance to 180 degree is had excellent performance, by 180 degree aging in 10 days,
The change rate of elongation is all within 40%；Using cumyl peroxide as vulcanizing agent, Triallyl isocyanurate is made
For vulcanization accelerator, the degree of cross linking is further improved, improves compressive deformation, and cooperate 4,4 '-bis- (α α '-dimethyl benzyls)
Diphenylamines anti-aging agent 445 and 2-mercaptobenzimidazole antioxidant MB improve heat resistant performance；Secondly 1- ethyl -3- is used
Methylimidazole bis-trifluoromethylsulfoandimide ionic liquid or 1- butyl -3- methylimidazole thiocyanate ion liquid are as stabilization
Agent, not only high lubricating effect is nonflammable, volatility is extremely low, thermal stability is high, cooperates 4,4 '-bis- (α α '-dimethylbenzyls
Base) diphenylamines anti-aging agent 445 and 2-mercaptobenzimidazole antioxidant MB be with the use of can be further improved high temperature degradation resistance
Can, while can stablize through voltage, dielectric strength is improved, and both anti-aging agents are all not belonging to phenol anti-aging agent to peroxide
Compound vulcanization influences smaller.
Specific embodiment
The present invention will be further described below with reference to examples:
Embodiment: a kind of preparation method of soft type high thermal stability power cable low-smoke halogen-free material, the flame retardant insulation material
It is grouped as by the group of following mass parts:
90 parts of ethylene propylene diene rubber,
6 parts of zinc oxide,
0.6 part of stearic acid,
6 parts of paraffin,
3 parts of stabilizer,
2 parts of diphenylamines of 4.4 a pair ofs (2.2- dimethyl benzyl),
6 parts of 2-mercaptobenzimidazole,
Modified 70 parts of calcinated argil,
6 parts of cumyl peroxide,
3 parts of Triallyl isocyanurate；
The ethylene propylene diene rubber is the ethylene propylene diene rubber of DOW Chemical production, and ethylene contents are 70 ~ 85%, Third monomer, that is, E
Type Asia vinyl norbornene ENB content is 0.5 ~ 5%, and Mooney viscosity is 15 ~ 50；
The vulcanizing activator is the mixture that zinc oxide and stearic acid 10:1 in mass ratio are mixed；
The modified calcinated argil surface is modified by silane coupling A -172.
Above stabilizer is 1- butyl -3- methylimidazole thiocyanate ion liquid.
Above-mentioned 4.4 a pair of (2.2- dimethyl benzyl) diphenylamines and 2-mercaptobenzimidazole compound according to 1:3 mass ratio and
At.
The soft type high thermal stability power cable low-smoke halogen-free material of the present embodiment the preparation method is as follows: include it is following
Step:
Step 1: 90 parts of addition mixers of ethylene propylene diene rubber are carried out mixing molding；
Step 2: sequentially adding 6 parts of zinc oxide, 0.6 part of stearic acid, 6 parts of paraffin, 3 parts of stabilizer, 4.4 a pair ofs (2.2- dimethyl
Benzyl) 1 part of diphenylamines, 3 parts of 2-mercaptobenzimidazole, modified 70 parts of calcinated argil, it is kneaded uniform；The ethylene propylene diene rubber is
The ethylene propylene diene rubber of DOW Chemical production, ethylene contents are 70 ~ 85%, and Third monomer, that is, E type Asia vinyl norbornene ENB contains
Amount is 0.5 ~ 5%, and Mooney viscosity is 15 ~ 50, the zinc oxide and stearic acid 10:1 in mass ratio mixing, the modified calcining pottery
Native surface is modified by silane coupling A -172；
Step 3: discharging, discharge temp is lower than 130 DEG C；
Step 4: carry out stirring on a mill and cut volume the material that step 3 obtains, after be put into and filter rubber machine and carry out filter rubber, strainer is
2 layers, filter rubber temperature control is at 100 ~ 130 DEG C；
Step 5: the sizing material after filter rubber is put into mixer and 6 parts of cumyl peroxide and triallyl isocyanide urea is added
3 parts of acid esters, mixing time 1min, discharging, discharge temp is lower than 100 DEG C；
Step 6: sizing material is carried out to stirring on a mill cuts volume, after be put into filter rubber machine and carry out filter rubber, strainer is 3 layers, filters rubber temperature
Degree control is at 90 ~ 100 DEG C.
It turns refining Step 7: the sizing material after filter rubber is put into open mill, Bao Tong 2 ~ 4 times, cuts volume and send to stone roller page machine and grind page
Cooling package afterwards.
Above-mentioned stabilizer of stating is 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid or 1- butyl -3-
One of methylimidazole thiocyanate ion liquid.
It is 40 ~ 100 mesh that strainer, which has two layers of internal layer, in above-mentioned steps four, and outer layer is 60 ~ 180 mesh.
It is 40 ~ 100 mesh that strainer, which has three layers of internal layer, in above-mentioned steps six, and middle layer is 50 ~ 100 mesh, and outermost layer is 60 ~ 180 mesh.
The high thermal stability power cable flame retardant insulation material material that above-described embodiment is obtained passes through experimental test, performance table
Shown in 1.
Table 1
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of preparation method of soft type high thermal stability power cable low-smoke halogen-free material, it is characterised in that: including following
Step:
Step 1: 90 parts of addition mixers of ethylene propylene diene rubber are carried out mixing molding；
Step 2: sequentially adding 6 parts of zinc oxide, 0.6 part of stearic acid, 6 parts of paraffin, 3 parts of stabilizer, 4.4 a pair ofs (2.2- dimethyl
Benzyl) 1 part of diphenylamines, 3 parts of 2-mercaptobenzimidazole, modified 70 parts of calcinated argil, it is kneaded uniform；The ethylene propylene diene rubber is
The ethylene propylene diene rubber of DOW Chemical production, ethylene contents are 70 ~ 85%, and Third monomer, that is, E type Asia vinyl norbornene ENB contains
Amount is 0.5 ~ 5%, and Mooney viscosity is 15 ~ 50, the zinc oxide and stearic acid 10:1 in mass ratio mixing, the modified calcining pottery
Native surface is modified by silane coupling A -172；
Step 3: discharging, discharge temp is lower than 130 DEG C；
Step 4: carry out stirring on a mill and cut volume the material that step 3 obtains, after be put into and filter rubber machine and carry out filter rubber, strainer is
2 layers, filter rubber temperature control is at 100 ~ 130 DEG C；
Step 5: the sizing material after filter rubber is put into mixer and 6 parts of cumyl peroxide and triallyl isocyanide urea is added
3 parts of acid esters, mixing time 1min, discharging, discharge temp is lower than 100 DEG C；
Step 6: sizing material is carried out to stirring on a mill cuts volume, after be put into filter rubber machine and carry out filter rubber, strainer is 3 layers, filters rubber temperature
Degree control is at 90 ~ 100 DEG C；
It turns refining, Bao Tong 2 ~ 4 times, cuts cold after volume is sent to stone roller page machine stone roller page Step 7: the sizing material after filter rubber is put into open mill
But it encapsulates；
The ethylene propylene diene rubber is the ethylene propylene diene rubber of DOW Chemical production, and ethylene contents are 70 ~ 85%, Third monomer, that is, E
Type Asia vinyl norbornene ENB content is 0.5 ~ 5%, and Mooney viscosity is 15 ~ 50；
The vulcanizing activator is the mixture that zinc oxide and stearic acid 10:1 in mass ratio are mixed；
The modified calcinated argil surface is modified by silane coupling A -172；
The stabilizer is 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide ionic liquid or 1- butyl -3- methyl miaow
One of azoles thiocyanate ion liquid.
2. the preparation method of soft type high thermal stability power cable low-smoke halogen-free material according to claim 1, special
Sign is: 4.4 a pair of (2.2- dimethyl benzyl) diphenylamines and 2-mercaptobenzimidazole MB are compounded according to the mass ratio of 1:1 ~ 6
It forms.
3. the preparation method of soft type high thermal stability power cable low-smoke halogen-free material according to claim 1, special
Sign is: it is 40 ~ 100 mesh that strainer, which has two layers of internal layer, in the step 4, and outer layer is 60 ~ 180 mesh.
4. the preparation method of soft type high thermal stability power cable low-smoke halogen-free material according to claim 1, special
Sign is: it is 40 ~ 100 mesh that strainer, which has three layers of internal layer, in the step 6, and middle layer is 50 ~ 100 mesh, and outermost layer is 60 ~ 180 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811021504.6A CN109438855A (en) | 2015-07-10 | 2015-07-10 | The preparation method of soft type high thermal stability power cable low-smoke halogen-free material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021504.6A CN109438855A (en) | 2015-07-10 | 2015-07-10 | The preparation method of soft type high thermal stability power cable low-smoke halogen-free material |
| CN201510404094.3A CN105255017B (en) | 2015-07-10 | 2015-07-10 | Medium-pressure power cable third Insulation Material of second and preparation method thereof |
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| CN201510404094.3A Division CN105255017B (en) | 2015-07-10 | 2015-07-10 | Medium-pressure power cable third Insulation Material of second and preparation method thereof |
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| CN201510404094.3A Active CN105255017B (en) | 2015-07-10 | 2015-07-10 | Medium-pressure power cable third Insulation Material of second and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112920516A (en) * | 2021-01-29 | 2021-06-08 | 厦门麦丰密封件有限公司 | Low-pressure-change EPDM sealing element capable of achieving high-temperature rapid peroxide vulcanization and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633435A (en) * | 2016-12-28 | 2017-05-10 | 长园电子（东莞）有限公司 | Ethylene-propylene-diene-terpolymer rubber cold-contraction pipe suitable for high-temperature storage and low-temperature installation and preparation method |
| CN109957179B (en) * | 2017-12-22 | 2021-12-07 | 特变电工股份有限公司 | 35kV ultra-clean ethylene propylene rubber cable insulating material and preparation method thereof |
| CN111410797A (en) * | 2020-05-26 | 2020-07-14 | 远东电缆有限公司 | High-performance medium-voltage ethylene-propylene insulating material with voltage of 35kV or below for wind power |
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| EP2316878A1 (en) * | 2009-10-28 | 2011-05-04 | ContiTech AG | Electrically conductive polymer material |
| CN102382377A (en) * | 2011-09-29 | 2012-03-21 | 江苏亨通电力电缆有限公司 | Medium-voltage ethylene propylene rubber insulating material and preparation method thereof |
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| CN101831115B (en) * | 2010-04-29 | 2011-12-21 | 江苏远洋东泽电缆股份有限公司 | Ethylene propylene rubber insulation material for longitudinal high-voltage watertight cable of ships and warships and production method thereof |
| CN102153817B (en) * | 2011-05-10 | 2013-04-10 | 广东华声电器股份有限公司 | Low-temperature-resistant cable material |
| CN104610666A (en) * | 2015-01-28 | 2015-05-13 | 安徽弘毅电缆集团有限公司 | High-performance composite cable jacket material for cables |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2316878A1 (en) * | 2009-10-28 | 2011-05-04 | ContiTech AG | Electrically conductive polymer material |
| CN102382377A (en) * | 2011-09-29 | 2012-03-21 | 江苏亨通电力电缆有限公司 | Medium-voltage ethylene propylene rubber insulating material and preparation method thereof |
| JP2015096593A (en) * | 2013-10-08 | 2015-05-21 | 西川ゴム工業株式会社 | Swelling or dissolving method for ethylene-propylene-diene copolymer rubber |
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| CN112920516A (en) * | 2021-01-29 | 2021-06-08 | 厦门麦丰密封件有限公司 | Low-pressure-change EPDM sealing element capable of achieving high-temperature rapid peroxide vulcanization and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105255017B (en) | 2018-09-21 |
| CN105255017A (en) | 2016-01-20 |
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Application publication date: 20190308 |