CN108250632A - A kind of high rigidity fire-resistant cable material and preparation method thereof - Google Patents
A kind of high rigidity fire-resistant cable material and preparation method thereof Download PDFInfo
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- CN108250632A CN108250632A CN201810281120.1A CN201810281120A CN108250632A CN 108250632 A CN108250632 A CN 108250632A CN 201810281120 A CN201810281120 A CN 201810281120A CN 108250632 A CN108250632 A CN 108250632A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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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
- H01B3/443—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 vinylhalogenides or other halogenoethylenic compounds
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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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
Abstract
The invention discloses a kind of high rigidity fire-resistant cable materials, include the raw material of following parts by weight：20~30 parts of Corvic, 17~28 parts of low density polyethylene (LDPE), 10~20 parts of makrolon, 5~12 parts of ethylene propylene diene rubber, 6~11 parts of ethylene-vinyl acetate copolymer, 4~9 parts of maleic anhydride grafts, 3~7 parts of aluminium hydroxide, 2~5 parts of zinc borate, 2~4 parts of antimony oxide, 5~10 parts of modified kaolin, 3~8 parts of hydroxymethyl starch, 2~4 parts of plasticizer, 1~3 part of lubricant, 2~4 parts of ultra-violet absorber, 1~4 part of crosslinking agent, 2~3 parts of Ca-Zn composite heat stabilizer.The high rigidity fire-resistant cable material scientific formulation, rationally, not only with excellent fire-retardant and insulation performance, while the present invention also has excellent mechanical property.
Description
Technical field
The invention belongs to CABLE MATERIALS technical fields, and in particular to a kind of high rigidity fire-resistant cable material and preparation method thereof.
Background technology
With the fast development of China market economy, one of fundamental technology of the coal industry as world today's main energy sources
It being rapidly developed, the safety to mine is even more to attract people's attention, due to underground work bad environments, the hair of various accidents
Raw serious threat the safety of mine and the life of miner, and matched cable-flame retardant performance is equally noticeable, fire-retardant electricity
Cable is that itself catches fire or outer burning things which may cause a fire disaster ignite when catching fire for some reason when cable, and cable is not continued to burn or be fired after extinguishing of catching fire
The burning time is very short, and flame retardant cable flame retardant property of the prior art is weak, it is difficult to meet the requirement of high fire-retardance.
Invention content
The present invention provides a kind of high rigidity fire-resistant cable materials and preparation method thereof, solve the problems in background technology,
The high rigidity fire-resistant cable material scientific formulation, rationally, not only with excellent fire-retardant and insulation performance, while the present invention also has
Excellent mechanical property.
It is of the existing technology in order to solve the problems, such as, it adopts the following technical scheme that：
A kind of high rigidity fire-resistant cable material includes the raw material of following parts by weight：20~30 parts of Corvic, low density polyethylene
17~28 parts of alkene, 10~20 parts of makrolon, 5~12 parts of ethylene propylene diene rubber, 6~11 parts of ethylene-vinyl acetate copolymer, horse
Maleic anhydride grafted 4~9 parts of object, 3~7 parts of aluminium hydroxide, 2~5 parts of zinc borate, 2~4 parts of antimony oxide, modified kaolin 5~
10 parts, 3~8 parts of hydroxymethyl starch, 2~4 parts of plasticizer, 1~3 part of lubricant, 2~4 parts of ultra-violet absorber, crosslinking agent 1~4
Part, 2~3 parts of Ca-Zn composite heat stabilizer.
Preferably, the high rigidity fire-resistant cable material includes the raw material of following parts by weight：Corvic 23~28
Part, 20~25 parts of low density polyethylene (LDPE), 14~17 parts of makrolon, 6~11 parts of ethylene propylene diene rubber, ethene-vinyl acetate are common
8~10 parts of polymers, 5~8 parts of maleic anhydride grafts, 4~6 parts of aluminium hydroxide, 3~4 parts of zinc borate, antimony oxide 2.7~
3.6 parts, 5.4~8.8 parts of modified kaolin, 4~7 parts of hydroxymethyl starch, 2.9~3.3 parts of plasticizer, lubricant 1.7~2.4
Part, 2.6~3.2 parts of ultra-violet absorber, 2~3 parts of crosslinking agent, 2.1~2.9 parts of Ca-Zn composite heat stabilizer.
Preferably, the high rigidity fire-resistant cable material includes the raw material of following parts by weight：It is 25 parts of Corvic, low
23 parts of density polyethylene, 15 parts of makrolon, 10 parts of ethylene propylene diene rubber, 9 parts of ethylene-vinyl acetate copolymer, maleic anhydride
6 parts of graft, 5 parts of aluminium hydroxide, 3.4 parts of zinc borate, 3.2 parts of antimony oxide, 7 parts of modified kaolin, hydroxymethyl starch 5
Part, 3.1 parts of plasticizer, 2.2 parts of lubricant, 2.9 parts of ultra-violet absorber, 2.6 parts of crosslinking agent, Ca-Zn composite heat stabilizer 2.8
Part.
Preferably, the modified kaolin is made using following methods：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 70~75 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 5~10 minutes, drum's speed of rotation 1700r/min, condensation discharging.
Preferably, the lubricant is barium stearate.
Preferably, the plasticizer is selected from：One kind in plasticizer DOP or plasticizer DOS.
A kind of method for preparing the high rigidity fire-resistant cable material, includes the following steps：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 90~100 DEG C,
Low speed mixing 15~20 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 70~80 DEG C to be preheated to temperature of charge, and low speed mixing 7~14 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 65~73 DEG C, it is high
Speed is kneaded 20~30 minutes, is subsequently placed in open mill and is carried out mill, is finally placed in extruder, extruding pelletization, and cooling obtains institute
State high rigidity fire-resistant cable material.
Preferably, the rotating speed of the low speed mixing is 50r/min, and the rotating speed being kneaded at a high speed is 130r/min.
Compared with prior art, the present invention it has the advantages that：
High rigidity fire-resistant cable material of the present invention is by rationally adding the internal composition of control CABLE MATERIALS and control internal composition
Between proportioning, and the physical mechanical property of the CABLE MATERIALS prepared by the way of certain is good, and crosslinking is closely knit and performance is stablized, and makes
With long lifespan, rubber compounding is easy, and can substantially improve properties of rubber, and CABLE MATERIALS anti-flammability is also preferable, specific as follows：
（1）High rigidity fire-resistant cable material of the present invention is using ethylene propylene diene rubber, modified kaolin, zinc borate, three oxidations two
Antimony, aluminium hydroxide are as raw material, ethylene propylene diene rubber, modified kaolin, zinc borate, antimony oxide synergistic effect so that should
CABLE MATERIALS forms sintering soon in cable surface in the case of burning and generation halogen radical is so as to effectively prevent burning
The progress of reaction；
（2）The present invention by Corvic and low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber as main component,
Tensile strength, stress at definite elongation, tear resistance, heat resistance and flame resistance are improved, improves oil resistant, resistance to fuel oil and chemical-resistant resistance
Performance improves calendering processing performance, also improves storage stability so that the present invention has resistance to ozone and weatherability
Can, elongation at break becomes larger, and holds stream index height, stability is good, and anti-cracking performance is excellent, will not go out generally under conditions of -50 DEG C
Existing cracking phenomena, security performance is high, and the service life period of cable is long.
Specific embodiment
With reference to specific embodiment, the present invention is further explained.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
The present embodiment is related to a kind of high rigidity fire-resistant cable material, includes the raw material of following parts by weight：It is 20 parts of Corvic, low
17 parts of density polyethylene, 10 parts of makrolon, 5 parts of ethylene propylene diene rubber, 6 parts of ethylene-vinyl acetate copolymer, maleic anhydride connect
4 parts of object of branch, 3 parts of aluminium hydroxide, 2 parts of zinc borate, 2 parts of antimony oxide, 5 parts of modified kaolin, 3~8 parts of methylol shallow lake, plasticising
2 parts of agent, 1 part of lubricant, 2 parts of ultra-violet absorber, 1 part of crosslinking agent, 2 parts of Ca-Zn composite heat stabilizer.
Wherein, the modified kaolin is made using following methods：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 70 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 5 minutes, drum's speed of rotation 1700r/min, condensation discharging.
Wherein, the lubricant is barium stearate.
Wherein, the plasticizer is selected from plasticizer DOP.
A kind of method for preparing the high rigidity fire-resistant cable material, includes the following steps：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 90 DEG C, low speed
Mixing 15 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 70 DEG C to be preheated to temperature of charge, and low speed mixing 7 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 65 DEG C, it is mixed at a high speed
Refining 20 minutes, is subsequently placed in open mill and carries out mill, be finally placed in extruder, extruding pelletization, and cooling obtains the high rigidity
Fire-resistant cable material.
Wherein, the rotating speed of the low speed mixing is 50r/min, and the rotating speed being kneaded at a high speed is 130r/min.
Embodiment 2
The present embodiment is related to a kind of high rigidity fire-resistant cable material, includes the raw material of following parts by weight：It is 30 parts of Corvic, low
28 parts of density polyethylene, 20 parts of makrolon, 12 parts of ethylene propylene diene rubber, 11 parts of ethylene-vinyl acetate copolymer, maleic anhydride
9 parts of graft, 5 parts of zinc borate, 4 parts of antimony oxide, 10 parts of modified kaolin, 8 parts of hydroxymethyl starch, increases 7 parts of aluminium hydroxide
Mould 4 parts of agent, 3 parts of lubricant, 4 parts of ultra-violet absorber, 4 parts of crosslinking agent, 3 parts of Ca-Zn composite heat stabilizer.
Wherein, the modified kaolin is made using following methods：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 75 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 10 minutes, drum's speed of rotation 1700r/min, condensation discharging.
Wherein, the lubricant is barium stearate.
Wherein, the plasticizer is selected from plasticizer DOS.
A kind of method for preparing the high rigidity fire-resistant cable material, includes the following steps：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 100 DEG C, low speed
Mixing 20 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 80 DEG C to be preheated to temperature of charge, and low speed mixing 14 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 73 DEG C, it is mixed at a high speed
Refining 30 minutes, is subsequently placed in open mill and carries out mill, be finally placed in extruder, extruding pelletization, and cooling obtains the high rigidity
Fire-resistant cable material.
Wherein, the rotating speed of the low speed mixing is 50r/min, and the rotating speed being kneaded at a high speed is 130r/min.
Embodiment 3
The present embodiment is related to a kind of high rigidity fire-resistant cable material, includes the raw material of following parts by weight：It is 23 parts of Corvic, low
20 parts of density polyethylene, 14 parts of makrolon, 6 parts of ethylene propylene diene rubber, 8 parts of ethylene-vinyl acetate copolymer, maleic anhydride connect
Branch 5 parts of object, 4 parts of aluminium hydroxide, 3 parts of zinc borate, 2.7 parts of antimony oxide, 5.4 parts of modified kaolin, 4 parts of hydroxymethyl starch,
2.9 parts of plasticizer, 1.7 parts of lubricant, 2.6 parts of ultra-violet absorber, 2 parts of crosslinking agent, 2.1 parts of Ca-Zn composite heat stabilizer.
Wherein, the modified kaolin is made using following methods：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 71 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 6 minutes, drum's speed of rotation 1700r/min, condensation discharging.
Wherein, the lubricant is barium stearate.
Wherein, the plasticizer is selected from plasticizer DOP.
A kind of method for preparing the high rigidity fire-resistant cable material, includes the following steps：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 92 DEG C, low speed
Mixing 16 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 72 DEG C to be preheated to temperature of charge, and low speed mixing 8 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 68 DEG C, it is mixed at a high speed
Refining 22 minutes, is subsequently placed in open mill and carries out mill, be finally placed in extruder, extruding pelletization, and cooling obtains the high rigidity
Fire-resistant cable material.
Wherein, the rotating speed of the low speed mixing is 50r/min, and the rotating speed being kneaded at a high speed is 130r/min.
Embodiment 4
The present embodiment is related to a kind of high rigidity fire-resistant cable material, includes the raw material of following parts by weight：It is 28 parts of Corvic, low
25 parts of density polyethylene, 17 parts of makrolon, 11 parts of ethylene propylene diene rubber, 10 parts of ethylene-vinyl acetate copolymer, maleic anhydride
8 parts of graft, 6 parts of aluminium hydroxide, 4 parts of zinc borate, 3.6 parts of antimony oxide, 8.8 parts of modified kaolin, hydroxymethyl starch 7
Part, 3.3 parts of plasticizer, 2.4 parts of lubricant, 3.2 parts of ultra-violet absorber, 3 parts of crosslinking agent, 2.9 parts of Ca-Zn composite heat stabilizer.
Wherein, the modified kaolin is made using following methods：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 72 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 7 minutes, drum's speed of rotation 1700r/min, condensation discharging.
Wherein, the lubricant is barium stearate.
Wherein, the plasticizer is selected from plasticizer DOS.
A kind of method for preparing the high rigidity fire-resistant cable material, includes the following steps：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 95 DEG C, low speed
Mixing 17 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 75 DEG C to be preheated to temperature of charge, and low speed mixing 10 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 70 DEG C, it is mixed at a high speed
Refining 25 minutes, is subsequently placed in open mill and carries out mill, be finally placed in extruder, extruding pelletization, and cooling obtains the high rigidity
Fire-resistant cable material.
Wherein, the rotating speed of the low speed mixing is 50r/min, and the rotating speed being kneaded at a high speed is 130r/min.
Embodiment 5
The present embodiment is related to a kind of high rigidity fire-resistant cable material, includes the raw material of following parts by weight：It is 25 parts of Corvic, low
23 parts of density polyethylene, 15 parts of makrolon, 10 parts of ethylene propylene diene rubber, 9 parts of ethylene-vinyl acetate copolymer, maleic anhydride
6 parts of graft, 5 parts of aluminium hydroxide, 3.4 parts of zinc borate, 3.2 parts of antimony oxide, 7 parts of modified kaolin, hydroxymethyl starch 5
Part, 3.1 parts of plasticizer, 2.2 parts of lubricant, 2.9 parts of ultra-violet absorber, 2.6 parts of crosslinking agent, Ca-Zn composite heat stabilizer 2.8
Part.
Wherein, the modified kaolin is made using following methods：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 74 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 9 minutes, drum's speed of rotation 1700r/min, condensation discharging.
Wherein, the lubricant is barium stearate.
Wherein, the plasticizer is selected from plasticizer DOS.
A kind of method for preparing the high rigidity fire-resistant cable material, includes the following steps：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 98 DEG C, low speed
Mixing 19 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 78 DEG C to be preheated to temperature of charge, and low speed mixing 12 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 72 DEG C, it is mixed at a high speed
Refining 28 minutes, is subsequently placed in open mill and carries out mill, be finally placed in extruder, extruding pelletization, and cooling obtains the high rigidity
Fire-resistant cable material.
Wherein, the rotating speed of the low speed mixing is 50r/min, and the rotating speed being kneaded at a high speed is 130r/min.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of high rigidity fire-resistant cable material, which is characterized in that include the raw material of following parts by weight：Corvic 20~30
Part, 17~28 parts of low density polyethylene (LDPE), 10~20 parts of makrolon, 5~12 parts of ethylene propylene diene rubber, ethene-vinyl acetate are common
6~11 parts of polymers, 4~9 parts of maleic anhydride grafts, 3~7 parts of aluminium hydroxide, 2~5 parts of zinc borate, antimony oxide 2~4
Part, 5~10 parts of modified kaolin, 3~8 parts of hydroxymethyl starch, 2~4 parts of plasticizer, 1~3 part of lubricant, ultra-violet absorber 2
~4 parts, 1~4 part of crosslinking agent, 2~3 parts of Ca-Zn composite heat stabilizer.
2. high rigidity fire-resistant cable material according to claim 1, which is characterized in that include the raw material of following parts by weight：It is poly-
23~28 parts of vinyl chloride resin, 20~25 parts of low density polyethylene (LDPE), 14~17 parts of makrolon, 6~11 parts of ethylene propylene diene rubber,
8~10 parts of ethylene-vinyl acetate copolymer, 5~8 parts of maleic anhydride grafts, 4~6 parts of aluminium hydroxide, 3~4 parts of zinc borate,
2.7~3.6 parts of antimony oxide, 5.4~8.8 parts of modified kaolin, 4~7 parts of hydroxymethyl starch, 2.9~3.3 parts of plasticizer,
1.7~2.4 parts of lubricant, 2.6~3.2 parts of ultra-violet absorber, 2~3 parts of crosslinking agent, Ca-Zn composite heat stabilizer 2.1~2.9
Part.
3. high rigidity fire-resistant cable material according to claim 1, which is characterized in that include the raw material of following parts by weight：It is poly-
25 parts of vinyl chloride resin, 23 parts of low density polyethylene (LDPE), 15 parts of makrolon, 10 parts of ethylene propylene diene rubber, ethene-vinyl acetate are common
9 parts of polymers, 6 parts of maleic anhydride grafts, 5 parts of aluminium hydroxide, 3.4 parts of zinc borate, 3.2 parts of antimony oxide, modified kaolin 7
Part, 5 parts of hydroxymethyl starch, 3.1 parts of plasticizer, 2.2 parts of lubricant, 2.9 parts of ultra-violet absorber, 2.6 parts of crosslinking agent, calcium zinc are answered
Close 2.8 parts of heat stabilizer.
4. high rigidity fire-resistant cable material according to claim 1, which is characterized in that the modified kaolin is used with lower section
Method is made：
（1）Kaolin powder loading ball mill is heated to 70 DEG C under agitation and is kept for 15 minutes, keeps drum's speed of rotation
For 2000r/min；
（2）Then it adds in stearic acid in ball mill, adds in after stearic acid that kaolin is with stearic weight ratio in ball mill
97:3, keep drum's speed of rotation constant, temperature is controlled at 70~75 DEG C, and is kept for 20 minutes；
（3）Then ball mill temperature is down to 45 DEG C and is kept for 5~10 minutes, drum's speed of rotation 1700r/min, condensation discharging.
5. high rigidity fire-resistant cable material according to claim 1, which is characterized in that the lubricant is barium stearate.
6. high rigidity fire-resistant cable material according to claim 1, which is characterized in that the plasticizer is selected from：Plasticizer DOP
Or one kind in plasticizer DOS.
A kind of 7. method for preparing any one of the claim 1~6 high rigidity fire-resistant cable material, which is characterized in that including with
Lower step：
（1）Corvic, low density polyethylene (LDPE), makrolon, ethylene propylene diene rubber, ethylene-vinegar are weighed by above-mentioned formula
Sour ethylene copolymer, maleic anhydride grafts, aluminium hydroxide, zinc borate, antimony oxide, modified kaolin, hydroxymethyl starch,
Plasticizer, lubricant, ultra-violet absorber, crosslinking agent, Ca-Zn composite heat stabilizer, it is spare；
（2）Corvic, low density polyethylene (LDPE) and makrolon are placed in mixer together, are preheated to 90~100 DEG C,
Low speed mixing 15~20 minutes obtains the first mixing mixture；
（3）Ethylene propylene diene rubber, ethylene-vinyl acetate copolymer, maleic anhydride are sequentially added into the first mixing mixture to connect
Branch object and crosslinking agent, it is 70~80 DEG C to be preheated to temperature of charge, and low speed mixing 7~14 minutes obtains the second mixing mixture；
（4）Lubricant is sequentially added into the second mixing mixture, plasticizer, aluminium hydroxide, zinc borate, antimony oxide, is changed
Property kaolin, hydroxymethyl starch, ultra-violet absorber, Ca-Zn composite heat stabilizer, be preheated to temperature of charge as 65~73 DEG C, it is high
Speed is kneaded 20~30 minutes, is subsequently placed in open mill and is carried out mill, is finally placed in extruder, extruding pelletization, and cooling obtains institute
State high rigidity fire-resistant cable material.
8. preparation method according to claim 7, which is characterized in that the rotating speed of the low speed mixing is 50r/min, at a high speed
The rotating speed of mixing is 130r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810281120.1A CN108250632A (en) | 2018-04-02 | 2018-04-02 | A kind of high rigidity fire-resistant cable material and preparation method thereof |
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| CN105037994A (en) * | 2015-06-23 | 2015-11-11 | 中山市鸿程科研技术服务有限公司 | Corrosion-resistant flame-retardant cable material and preparation method thereof |
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| CN103059439A (en) * | 2011-10-20 | 2013-04-24 | 常熟市筑紫机械有限公司 | Flame retardant polyvinyl chloride wire and cable material |
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Application publication date: 20180706 |