CN105367918A - Halogen-free high-temperature-resistant conductor shield material and preparation method thereof - Google Patents
Halogen-free high-temperature-resistant conductor shield material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 55
- 239000004020 conductor Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 238000004073 vulcanization Methods 0.000 claims abstract description 12
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007822 coupling agent Substances 0.000 claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005987 sulfurization reaction Methods 0.000 claims description 23
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 18
- 230000003712 anti-aging effect Effects 0.000 claims description 18
- 229920001897 terpolymer Polymers 0.000 claims description 13
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000006229 carbon black Substances 0.000 claims description 10
- 239000012188 paraffin wax Substances 0.000 claims description 10
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 9
- 239000004902 Softening Agent Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000011787 zinc oxide Substances 0.000 claims description 9
- 238000011056 performance test Methods 0.000 claims description 8
- ZRMMVODKVLXCBB-UHFFFAOYSA-N 1-n-cyclohexyl-4-n-phenylbenzene-1,4-diamine Chemical compound C1CCCCC1NC(C=C1)=CC=C1NC1=CC=CC=C1 ZRMMVODKVLXCBB-UHFFFAOYSA-N 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 7
- -1 alkylated diphenylamine compound Chemical class 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 7
- 230000002596 correlated effect Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 7
- 230000001737 promoting effect Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 7
- 235000012424 soybean oil Nutrition 0.000 claims description 7
- 239000003549 soybean oil Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract description 2
- 229920002943 EPDM rubber Polymers 0.000 abstract 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 abstract 1
- 239000013543 active substance Substances 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 7
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 229910000077 silane Inorganic materials 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- OKIRBHVFJGXOIS-UHFFFAOYSA-N 1,2-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=CC=C1C(C)C OKIRBHVFJGXOIS-UHFFFAOYSA-N 0.000 description 5
- 101000648997 Homo sapiens Tripartite motif-containing protein 44 Proteins 0.000 description 5
- 235000021355 Stearic acid Nutrition 0.000 description 5
- 102100028017 Tripartite motif-containing protein 44 Human genes 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000008117 stearic acid Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920013649 Paracril Polymers 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- 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—Ethene-propene or ethene-propene-diene copolymers
-
- 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
- C08K2201/001—Conductive additives
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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
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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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a halogen-free high-temperature-resistant conductor shield material, belonging to the technical field of rubber cables. The shield material disclosed by the invention comprises 100 parts of ethylene propylene diene monomer, 2.5-5 parts of a vulcanization agent, 1.5-6 parts of a vulcanization accelerant, 2-6 parts of an active agent, 2-10 parts of an antioxidant, 15-25 parts of a plasticizer, 0.5-1.5 parts of a coupling agent and 60-100 parts of conductive carbon black. The shield material disclosed by the invention uses ethylene propylene diene monomer of a high ethylene content and a low third monomer content as a base, enabling the shield material to have good processability, heat stability and an unpeelable performance; the material uses diphenylamine and phenylenediamine antioxidants, and has excellent mechanical performance and electric performance at a high temperature. The shield material is halogen-free, has good tensile strength, has an excellent semi-conductive performance at 125 DEG C and meets some special use. The shield material disclosed by the invention is a halogen-free, high-temperature-resistant conductor shield material which has good processability, heat stability, mechanical performance, electric performance and an excellent semi-conductive performance at a high temperature.
Description
Technical field
The invention belongs to rubbercable technical field, be specially a kind of halogen-free refractory conductor shielding material and preparation method thereof.
Background technology
Current rubbercable conductor shielding material generally adopts Halogen material, as chloroprene rubber, chlorinatedpolyethylene, these materials can decompose the corrosive hydrogen chloride gas of generation under the high temperature conditions, damage is caused to conductor and insulating material, particularly during presence of fire, burning can produce the toxic gas with irritating smell, directly threaten the life security of people, immeasurable loss is caused to the lives and properties of people.
In order to improve the Safety and Environmental Protection of cable, also occur that some adopt the elastomerics of Halogens, as paracril, ethylene-vinyl acetate copolymer, but these materials processing performances and resistance to elevated temperatures poor, can only could use under normal temperature condition, the demand of some special purposes can not be met.
Summary of the invention
In order to solve above-mentioned cable conductor shielding material Problems existing, the invention provides a kind of halogen-free refractory conductor shielding material and preparation method thereof, the present invention is achieved through the following technical solutions:
A kind of halogen-free refractory conductor shielding material, comprise the component of following mass parts: terpolymer EP rubber: 100 parts, vulcanizing agent: 2.5 ~ 5 parts, vulcanization accelerator: 1.5 ~ 6 parts, promoting agent: 2 ~ 6 parts, anti-aging agent: 2 ~ 10 parts, softening agent: 15 ~ 25 parts, coupling agent: 0.5 ~ 1.5 part, graphitized carbon black: 60 ~ 100 parts.
Preferred as one of the present invention, in described terpolymer EP rubber, the massfraction of ethene is that the massfraction of 70% ~ 80%, ENB is less than 3%.Terpolymer EP rubber is a kind of rubber of high saturation, and its molecular weight distribution is wider, and have good filling capacity and flow extrudability, processing characteristics is excellent, has good long-term thermal stability, ultraviolet stability and electric property.
Preferred as one of the present invention, described vulcanizing agent is organo-peroxide, more preferably dicumyl peroxide (DCP).Vulcanizing agent can make linear rubber molecule be cross-linked to form tridimensional network, thus makes that plasticity-reduces, elasticity strengthens by force.Organo-peroxide can shorten curing time as vulcanizing agent, and gained cross-linked rubber good heat resistance, compression set is little.
Preferred as one of the present invention, described vulcanization accelerator is cyanacrylate (TAIC).The effect of vulcanization accelerator is accelerated cure and strengthens cure efficiency, can shorten curing time significantly, improve intensity, wear resistance, resistance to dissolubility, erosion resistance.
Preferred as one of the present invention, described promoting agent is zinc oxide and stearic mixture.The effect of activator is the activation performance strengthening vulcanization accelerator, promotes vulcanization reaction further simultaneously.Promoting agent can make promotor sensitization and promote vulcanization reaction further, and zinc oxide just can make promotor activate under stearic existence, and zinc oxide also can improve the thermotolerance of cross-linked rubber.
Preferred as one of the present invention, described anti-aging agent is the mixture of diphenylamine anti-aging agent and p phenylenediamine type antioxidant.The effect of anti-aging agent is the heat resistant performance improving rubber, diphenylamine anti-aging agent and p phenylenediamine type antioxidant agingly all have more outstanding protective benefits to various types of, mainly preventing ozone, fatigue and thermo-oxidative ageing, is that other anti-aging agent cannot be compared.Anti-aging agent amount is very few, anti-old DeGrain; Anti-aging agent amount is too much, easy bubbling after sulfuration; So the consumption of anti-aging agent strictly will be controlled.
Preferred as one of the present invention, the mixture that described anti-aging agent forms for antioxidant 4010 and alkylated diphenylamine compound.These two kinds of anti-aging agent are all efficient anti-aging agent, cooperatively interact, and have remarkable protective benefits, also have significant protective effect to oxygen, heat and high-energy radiation etc. to the fatigue that deflects that ozone, wind erosion and mechanical stress cause, on sulfuration without impact, and favorable dispersity.
Preferred as one of the present invention, described softening agent is paraffin and epoxy soybean oil, one or both mixtures formed in trioctyl trimellitate (TOTM).Must paraffin be contained in softening agent of the present invention, epoxy soybean oil, trioctyl trimellitate can select wherein one or both, it is mixed with paraffin and namely forms softening agent of the present invention.Softening agent is mainly used to the plasticity improving material, to reach good processing characteristics, and the resistance to elevated temperatures of reinforcement material simultaneously, thus strengthen ageing-resistant performance.Paraffin can be used from the viewpoint of processing characteristics; From the viewpoint of ageing-resistant effect, epoxy soybean oil or trioctyl trimellitate can be used.
Preferred as one of the present invention, described coupling agent is silane coupling agent.The present invention preferentially selects silane coupling A-172, silane coupling A-172 effectively can improve the dispersiveness of filler in rubber master batch and bounding force, improve the consistency of filler and rubber master batch, effectively can improve processing performance, improve the performances such as the machinery of shielding material, electricity and weather.
Graphitized carbon black of the present invention, its objective is to make shielding material have certain conductive capability, meets the performance requriements as cable.
Preferred as one of the present invention, the preparation method of described conductor shielding material, comprises the following steps:
A, weighing: take raw material according to recipe ingredient and mass fraction, stand-by;
B, mixing: first terpolymer EP rubber to be put in Banbury mixer the 5 ~ 10min that plasticates, then anti-aging agent, promoting agent, graphitized carbon black, softening agent and coupling agent is added successively and mixing 3 ~ 5min, add vulcanizing agent and vulcanization accelerator again, binder removal after mixing 1 ~ 2min, wherein, dump temperature controls at 90 ~ 120 DEG C;
C, compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beat triangle bag and each three times of thin-pass;
D, sulfuration: the film after mixing parks more than 16h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 160 ~ 180 DEG C, the time is 10 ~ 20min, pressure >=5MPa;
E, detection: the film after sulfuration is placed more than 16h under normal temperature condition, then carries out correlated performance test.
Compared with prior art, the present invention has following technique effect:
1, the present invention shields material and utilizes the terpolymer EP rubber of high ethylene content, low Third monomer content as matrix, makes shielding material have good processibility, thermostability and not removability.
2, this shielding material adopts the mixture of diphenylamine and p phenylenediamine type antioxidant, possesses excellent mechanical property and electrical property at relatively high temperatures.
3, not only Halogen is expected in this shielding, and has higher tensile strength, still has excellent semiconduction performance, can meet the demand of some special purposes at 125 DEG C.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1:
The preparation of halogen-free refractory conductor shielding material of the present invention is carried out according to following component formula:
Table 1 embodiment 1 shields each component formula of material
Carry out the preparation of halogen-free refractory conductor shielding material of the present invention according to each component formula of table 1, its concrete preparation method is as follows:
A, weighing: take raw material according to table 1 recipe ingredient and mass fraction, stand-by;
B, mixing: first terpolymer EP rubber to be put in Banbury mixer the 6min that plasticates, then antioxidant 4010, alkylated diphenylamine compound, zinc oxide, stearic acid, graphitized carbon black, paraffin, epoxy soybean oil and silane coupling A-172 is added successively and mixing 4min, add oxidation diisopropylbenzene(DIPB) (DCP) and cyanacrylate (TAIC) again, binder removal after mixing 1min, wherein, dump temperature is 100 DEG C;
C, compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beat triangle bag and each three times of thin-pass;
D, sulfuration: the film after mixing parks 18h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 170 DEG C, the time is 12min, pressure is 5MPa;
E, detection: the film after sulfuration is placed 17h under normal temperature condition, then carry out correlated performance test.
Embodiment 2
The preparation of halogen-free refractory conductor shielding material of the present invention is carried out according to following component formula:
Table 2 embodiment 2 shields each component formula of material
Carry out the preparation of halogen-free refractory conductor shielding material of the present invention according to each component formula of table 2, its concrete preparation method is as follows:
A, weighing: take raw material according to table 2 recipe ingredient and mass fraction, stand-by;
B, mixing: first terpolymer EP rubber to be put in Banbury mixer the 8min that plasticates, then antioxidant 4010, alkylated diphenylamine compound, zinc oxide, stearic acid, graphitized carbon black, paraffin, trioctyl trimellitate (TOTM) and silane coupling A-172 is added successively and mixing 3min, add oxidation diisopropylbenzene(DIPB) (DCP) and cyanacrylate (TAIC) again, binder removal after mixing 2min, wherein, dump temperature is 110 DEG C;
C, compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beat triangle bag and each three times of thin-pass;
D, sulfuration: the film after mixing parks 17h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 160 DEG C, the time is 15min, pressure is 6.5MPa;
E, detection: the film after sulfuration is placed 18h under normal temperature condition, then carry out correlated performance test.
Embodiment 3
The preparation of halogen-free refractory conductor shielding material of the present invention is carried out according to following component formula:
Table 3 embodiment 3 shields each component formula of material
Carry out the preparation of halogen-free refractory conductor shielding material of the present invention according to each component formula of table 2, its concrete preparation method is as follows:
A, weighing: take raw material according to table 3 recipe ingredient and mass fraction, stand-by;
B, mixing: first terpolymer EP rubber to be put in Banbury mixer the 10min that plasticates, then antioxidant 4010, alkylated diphenylamine compound, zinc oxide, stearic acid, graphitized carbon black, paraffin, trioctyl trimellitate (TOTM) and silane coupling A-172 is added successively and mixing 5min, add oxidation diisopropylbenzene(DIPB) (DCP) and cyanacrylate (TAIC) again, binder removal after mixing 1.5min, wherein, dump temperature is 120 DEG C;
C, compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beat triangle bag and each three times of thin-pass;
D, sulfuration: the film after mixing parks 19h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 180 DEG C, the time is 10min, pressure is 7MPa;
E, detection: the film after sulfuration is placed 18h under normal temperature condition, then carry out correlated performance test.
Embodiment 4
The preparation of halogen-free refractory conductor shielding material of the present invention is carried out according to following component formula:
Table 4 embodiment 4 shields each component formula of material
Carry out the preparation of halogen-free refractory conductor shielding material of the present invention according to each component formula of table 4, its concrete preparation method is as follows:
A, weighing: take raw material according to table 4 recipe ingredient and mass fraction, stand-by;
B, mixing: first terpolymer EP rubber to be put in Banbury mixer the 8min that plasticates, then antioxidant 4010, alkylated diphenylamine compound, zinc oxide, stearic acid, graphitized carbon black, paraffin, trioctyl trimellitate (TOTM), epoxy soybean oil and silane coupling A-172 is added successively and mixing 4min, add oxidation diisopropylbenzene(DIPB) (DCP) and cyanacrylate (TAIC) again, binder removal after mixing 1.5min, wherein, dump temperature is 100 DEG C;
C, compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beat triangle bag and each three times of thin-pass;
D, sulfuration: the film after mixing parks 19h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 160 DEG C, the time is 15min, pressure is 6MPa;
E, detection: the film after sulfuration is placed 18h under normal temperature condition, then carry out correlated performance test.
Embodiment 5
The preparation of halogen-free refractory conductor shielding material of the present invention is carried out according to following component formula:
Table 5 embodiment 5 shields each component formula of material
Carry out the preparation of halogen-free refractory conductor shielding material of the present invention according to each component formula of table 4, its concrete preparation method is as follows:
A, weighing: take raw material according to table 4 recipe ingredient and mass fraction, stand-by;
B, mixing: first terpolymer EP rubber to be put in Banbury mixer the 7min that plasticates, then antioxidant 4010, alkylated diphenylamine compound, zinc oxide, stearic acid, graphitized carbon black, paraffin, epoxy soybean oil and silane coupling A-172 is added successively and mixing 3min, add oxidation diisopropylbenzene(DIPB) (DCP) and cyanacrylate (TAIC) again, binder removal after mixing 2min, wherein, dump temperature is 110 DEG C;
C, compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beat triangle bag and each three times of thin-pass;
D, sulfuration: the film after mixing parks 18h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 160 DEG C, the time is 15min, pressure is 6MPa;
E, detection: the film after sulfuration is placed 18h under normal temperature condition, then carry out correlated performance test.
Embodiment 6
Halogen-free refractory conductor shielding material product performance prepared by embodiment 1 to 5 component formula and preparation method are as shown in table 6 below:
The halogen-free refractory conductor shielding material product performance test result of table 6 embodiment 1 to embodiment 5 preparation
As can be seen from table 6 embodiment 1 to the properties test result of embodiment 5 preparing product, the tensile strength of conductor shielding material of the present invention is greater than 10MPa, and elongation at break is greater than 250%, has good mechanical property.165 DEG C aging 7 days, and variation in tensile strength is less than 10%, and elongation at break velocity of variation is less than 20%; 125 DEG C of volume specific resistance 0 ~ 100 Ω cm, absolutely prove that this conductor shielding material at high temperature has excellent mechanical property and semiconduction performance.Meanwhile, during burning, the PH of evolved gas is not less than 4.3, and specific conductivity is no more than 10 μ s/mm, illustrates that conductor shielding material of the present invention reaches Halogen-free requirement.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a halogen-free refractory conductor shielding material, it is characterized in that, comprise the component of following mass parts: terpolymer EP rubber: 100 parts, vulcanizing agent: 2.5 ~ 5 parts, vulcanization accelerator: 1.5 ~ 6 parts, promoting agent: 2 ~ 6 parts, anti-aging agent: 2 ~ 10 parts, softening agent: 15 ~ 25 parts, coupling agent: 0.5 ~ 1.5 part, graphitized carbon black: 60 ~ 100 parts.
2. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, is characterized in that, in described terpolymer EP rubber, the massfraction of ethene is that the massfraction of 70% ~ 80%, ENB is less than 3%.
3. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, it is characterized in that, described vulcanizing agent is dicumyl peroxide (DCP).
4. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, it is characterized in that, described vulcanization accelerator is cyanacrylate (TAIC).
5. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, it is characterized in that, described promoting agent is zinc oxide and stearic mixture.
6. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, it is characterized in that, described anti-aging agent is the mixture of diphenylamine anti-aging agent and p phenylenediamine type antioxidant.
7. a kind of halogen-free refractory conductor shielding material as claimed in claim 6, is characterized in that, the mixture that described anti-aging agent forms for antioxidant 4010 and alkylated diphenylamine compound.
8. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, is characterized in that, described softening agent is paraffin and epoxy soybean oil, one or both mixtures formed in trioctyl trimellitate (TOTM).
9. a kind of halogen-free refractory conductor shielding material as claimed in claim 1, it is characterized in that, described coupling agent is silane coupling agent.
10. the preparation method of a kind of halogen-free refractory conductor shielding material as claimed in claim 1, is characterized in that, comprise the following steps:
A. weighing: take raw material according to recipe ingredient and mass fraction, stand-by;
B. mixing: first terpolymer EP rubber to be put in Banbury mixer the 5 ~ 10min that plasticates, then anti-aging agent, promoting agent, graphitized carbon black, softening agent and coupling agent is added successively and mixing 3 ~ 5min, add vulcanizing agent and vulcanization accelerator again, binder removal after mixing 1 ~ 2min, wherein, dump temperature controls at 90 ~ 120 DEG C;
C. compressing tablet: turned refining on a mill until by the rubber unvulcanizate that Banbury mixer is discharged, beats triangle bag and each three times of thin-pass;
D. sulfuration: the film after mixing parks more than 16h under normal temperature condition, and be cut into suitable size according to demand, mould film after cutting being put into vulcanizing press carries out sulfuration, and wherein, curing temperature is 160 ~ 180 DEG C, the time is 10 ~ 20min, pressure >=5MPa;
E. detect: the film after sulfuration is placed more than 16h under normal temperature condition, then carries out correlated performance test.
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| CN109438857A (en) * | 2018-09-30 | 2019-03-08 | 远东电缆有限公司 | EP rubbers semiconductive external shield material that can be effectively crosslinked and preparation method thereof |
| CN109880237A (en) * | 2019-01-28 | 2019-06-14 | 芜湖航天特种电缆厂股份有限公司 | High temperature resistant high tenacity cable and preparation method thereof |
| CN115304950A (en) * | 2022-08-23 | 2022-11-08 | 东莞市利群榕兴高分子科技有限公司 | EPDM conductive spraying liquid with strong bonding force and low surface resistance and preparation method thereof |
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| CN108610562B (en) * | 2018-04-28 | 2021-08-13 | 南京金三力高分子科技有限公司 | Low-pressure-change high-temperature-resistant ethylene propylene rubber material and preparation method thereof |
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| CN115304950B (en) * | 2022-08-23 | 2023-08-29 | 东莞市利群榕兴高分子科技有限公司 | EPDM conductive spraying liquid with strong adhesion and low surface resistance and preparation method thereof |
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