CN107189283A - A kind of high fire-retardance electric power protection pipe and preparation method thereof - Google Patents

A kind of high fire-retardance electric power protection pipe and preparation method thereof Download PDF

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Publication number
CN107189283A
CN107189283A CN201710649441.8A CN201710649441A CN107189283A CN 107189283 A CN107189283 A CN 107189283A CN 201710649441 A CN201710649441 A CN 201710649441A CN 107189283 A CN107189283 A CN 107189283A
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parts
antioxidant
protection pipe
electric power
power protection
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殷世尧
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Hefei Anli Electric Power Engineering Co Ltd
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Hefei Anli Electric Power Engineering Co Ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/004—Additives being defined by their length
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • 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
    • C08L2203/18—Applications used for pipes
    • 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
    • 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
    • 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

Abstract

The invention discloses a kind of high fire-retardance electric power protection pipe, belong to protection pipe technical field, include the raw material of following parts by weight：80 90 parts of polyvinyl chloride, 14 18 parts of haloflex, 15 17 parts of Kynoar, 10 12 parts of basalt fibre, 48 parts of polyimide fiber, 9 13 parts of calcium carbonate, 12 14 parts of silica flour, 79 parts of sepiolite powder, 26 parts of titanium dioxide, 15 parts of silicone oil, 24 parts of stearic acid, 37 parts of ACR processing aids, 9 11 parts of plasticizer, 35 parts of heat stabilizer, 12 parts of antioxidant；The invention also discloses a kind of preparation method of high fire-retardance electric power protection pipe；The present invention prepares simple, mechanical strength height, with excellent flame-resistant high-temperature-resistant ability.

Description

A kind of high fire-retardance electric power protection pipe and preparation method thereof
Technical field
The present invention relates to protection pipe technical field, specifically, a kind of high fire-retardance electric power protection pipe and its preparation relate to Method.
Background technology
Cable protection pipe also known as cable tube, power cable pipe, cement cable tube, electricity channel, power cable protecting pipe etc.. Cable protection pipe is mostly installed at the location that communication cable intersects with power line, prevents power line from occurring broken string and causing short-circuit thing Therefore, cause communication cable and steel wire rope powered, to protect cable, interchanger, machine core board, so that complete machine is not burned, to electric power Line magnetic interference also functions to certain buffer action.
For the development in epoch, cement making or other metals or the composite of nonmetallic making are all gradually moulded Material protection pipe is replaced, most of to improve its corrosion resistant in underground using the cable protection pipe of modified high-strength degree plastic production Corrosion energy and life-span, possess smooth surface ensure cable when through duct not by friction damage, performance is all in terms of cleaning It is very prominent etc..But, electric power protection pipe is the critical elements in power domain, and electric power protection pipe prepared by modified polypropylene exists Go back Shortcomings in terms of anti-flammability, electrical insulating property, antiacid caustic corrosion, sliding, heat endurance, thus by filling-modified or Person's blending and modifying improves the combination property of polypropylene electric power protection pipe, obtains that corrosion resistance is strong, electric insulating quality is good, mechanical strength The electric power that high, coefficient of friction is small, fire-retardant, suppression cigarette, heat-resisting, cold-resistant, service life length, easy construction, the ratio of performance to price are superior is protected Pillar is the hot issue studied at present.
In Publication No. CN104086919A patent document, a kind of high temperature resistant electric power protection pipe, its raw material are disclosed Include by weight：100-150 parts of polyvinyl chloride, 50-100 parts of chliorinated polyvinyl chloride, 5-15 parts of glass microballoon, acrylate 10-25 parts of class rubber, 2-6 parts of castor oil acid lanthanum, 1-5 parts of protocatechuic acid lanthanum, 2-5 parts of Synergistic stabilizer, heat-proof modifier 20-30 Part, 0.5-1.5 parts of Tissuemat E, modified 5-30 parts of feldspar, 10-20 parts of composite toughening modifier, 20-60 parts of fire retardant.The hair High temperature resistant electric power protection pipe described in bright have excellent heat-resisting quantity, while have good corrosion resistance, resistance to ag(e)ing, Anti-flammability, high mechanical strength and toughness, extend the service life of high temperature resistant electric power protection pipe；But its intensity and fire-retardant resistance to height Warm nature can remain to further improvement.
The content of the invention
It is an object of the invention to overcoming above-mentioned the deficiencies in the prior art there is provided a kind of high fire-retardance electric power protection pipe and its Preparation method, prepares simple, mechanical strength height, with excellent flame-resistant high-temperature-resistant ability.
A kind of high fire-retardance electric power protection pipe that the present invention is provided, includes the raw material of following parts by weight：
It is 80-90 parts of polyvinyl chloride, 14-18 parts of haloflex, 15-17 parts of Kynoar, 10-12 parts of basalt fibre, poly- 4-8 parts of imide fiber, 9-13 parts of calcium carbonate, 12-14 parts of silica flour, 7-9 parts of sepiolite powder, 2-6 parts of titanium dioxide, silicone oil 1-5 Part, 2-4 parts of stearic acid, 3-7 parts of ACR processing aids, 9-11 parts of plasticizer, 3-5 parts of heat stabilizer, 1-2 parts of antioxidant.
Preferably, the length of basalt fibre and polyimide fiber is 1-2mm, a diameter of 0.2-0.5mm.
Preferably, the mesh number of silica flour, sepiolite powder volume titanium dioxide is 200 mesh；Calcium carbonate is the lightweight carbonic acid of 600 mesh Calcium.
Preferably, plasticizer is dioctyl phthalate, dinonyl phthalate, the isodecyl of phthalic acid two Ester, DOTP, diisobutyl phthalate, di-sec-octyl phthalate, trioctyl trimellitate (TOTM) are a kind of Or more than two kinds of mixture.
Preferably, heat stabilizer is lead salt compound stabilizer, the organic based stabilizers of OBS, organic tin stabilizer, liquid Compound stabilizer, calcium-zinc composite stabilizing agent, barium zinc compound stabilizer and the one or two or more kinds of of potassium zinc composite stabilizer mix Compound.
Preferably, antioxidant be antioxidant 264, antioxidant 1076, antioxidant CA, antioxidant 330, antioxidant 3114 and One or two or more kinds of mixtures of antioxidant 300.
Present invention also offers a kind of preparation method of high fire-retardance electric power protection pipe, comprise the following steps：
（1）, by above-mentioned parts by weight weigh various raw materials；
（2）, by polyvinyl chloride, haloflex, Kynoar, basalt fibre, polyimide fiber, calcium carbonate, quartz Powder, sepiolite powder, titanium dioxide, silicone oil, stearic acid, ACR processing aids, plasticizer are added to stirring 30- in high-speed mixer 40min, it is 65-70 DEG C to control temperature, obtains compound；
（3）, by step（2）In compound, heat stabilizer and antioxidant be added to double screw extruder extruding pelletization, obtain grain Material；
（4）, pellet adds fully automatic integral extruder extrusion Vacuum shaping, coding, cutting, inspection, packs, enters after drying Storehouse.
Wherein,
Step（3）In middle double screw extruder granulation process, temperature control is 140-270 DEG C, and rotating speed during screw rod shearing is 200-600r/min。
A kind of high fire-retardance electric power protection pipe of the present invention and preparation method thereof, prepares simple, mechanical strength height, with excellent Flame-resistant high-temperature-resistant ability, specifically have the beneficial effect that：
（1）, fire-retardant polyvinyl chloride, acid and alkali-resistance, high mechanical strength, electrical insulating property is good, and haloflex has excellent weather-proof Property, resistance to ozone, chemical-resistant resistance and ageing-resistant performance, Kynoar has excellent chemical resistance, excellent resistance to height Warm colour denaturation, oxidative resistance, wearability, pliability, impact resistance intensity, polyvinyl chloride, haloflex and Kynoar Between cooperation addition be effective to ensure that intensity, corrosion-resistant, wear-resisting, heat-resistant fireproof and the ageing resistance of protection pipe；
（2）, basalt fibre intensity it is high, electric insulation, corrosion-resistant, resistance to elevated temperatures are excellent；Polyimide fiber high temperature flame-proof, electricity Insulation, the addition of basalt fibre and polyimide fiber can effectively improve the heat-resistant fireproof ability of protection pipe, improve strong Degree；
（3）, calcium carbonate, silica flour, sepiolite powder, titanium dioxide be effective to ensure that the intensity of protection pipe, heat-resistant fireproof ability And ageing resistance；Silicone oil and stearic acid are lubricant, and ACR processing aids, plasticizer, heat stabilizer and antioxidant can improve protection The performance and processing stability of pipe；
（4）, various raw materials correspondence ratios of the invention mixing, be effective to ensure that the mechanical strength of protection pipe, heat-resisting ability, Abrasive resistance, corrosion resistance, electrical insulating property and fuel tolerance capability, increase the service life of protection pipe；Preparation method can be effectively It will be sufficiently mixed between each raw material.
Embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of high fire-retardance electric power protection pipe of the present embodiment, includes the raw material of following parts by weight：
80 parts of polyvinyl chloride, 14 parts of haloflex, 15 parts of Kynoar, 10 parts of basalt fibre, polyimide fiber 4 Part, 9 parts of calcium carbonate, 12 parts of silica flour, 7 parts of sepiolite powder, 2 parts of titanium dioxide, 1 part of silicone oil, 2 parts of stearic acid, ACR processing aids 3 Part, 9 parts of plasticizer, 3 parts of heat stabilizer, 1 part of antioxidant.
In the present embodiment, the length of basalt fibre and polyimide fiber is 1mm, a diameter of 0.2mm.
In the present embodiment, silica flour, the mesh number of sepiolite powder volume titanium dioxide are 200 mesh；Calcium carbonate is the lightweight carbon of 600 mesh Sour calcium.
In the present embodiment, plasticizer is dioctyl phthalate, dinonyl phthalate, the isodecyl of phthalic acid two Ester, DOTP, diisobutyl phthalate, di-sec-octyl phthalate, trioctyl trimellitate (TOTM) it is mixed Compound.
In the present embodiment, heat stabilizer is lead salt compound stabilizer, the organic based stabilizers of OBS, organic tin stabilizer, liquid Bluk recombination stabilizer, calcium-zinc composite stabilizing agent, the mixture of barium zinc compound stabilizer and potassium zinc composite stabilizer.
In the present embodiment, antioxidant is antioxidant 264, antioxidant 1076, antioxidant CA, antioxidant 330, antioxidant 3114 With the mixture of antioxidant 300.
The present embodiment additionally provides a kind of preparation method of high fire-retardance electric power protection pipe, comprises the following steps：
（1）, by above-mentioned parts by weight weigh various raw materials；
（2）, by polyvinyl chloride, haloflex, Kynoar, basalt fibre, polyimide fiber, calcium carbonate, quartz Powder, sepiolite powder, titanium dioxide, silicone oil, stearic acid, ACR processing aids, plasticizer are added to stirring 30min in high-speed mixer, It is 65 DEG C to control temperature, obtains compound；
（3）, by step（2）In compound, heat stabilizer and antioxidant be added to double screw extruder extruding pelletization, obtain grain Material；
（4）, pellet adds fully automatic integral extruder extrusion Vacuum shaping, coding, cutting, inspection, packs, enters after drying Storehouse.
Wherein,
Step（3）In middle double screw extruder granulation process, temperature control is 140 DEG C, and rotating speed during screw rod shearing is 200r/ min。
Embodiment 2
A kind of high fire-retardance electric power protection pipe of the present embodiment, includes the raw material of following parts by weight：
85 parts of polyvinyl chloride, 16 parts of haloflex, 16 parts of Kynoar, 11 parts of basalt fibre, polyimide fiber 6 Part, 11 parts of calcium carbonate, 13 parts of silica flour, 8 parts of sepiolite powder, 4 parts of titanium dioxide, 3 parts of silicone oil, 3 parts of stearic acid, ACR processing aids 5 Part, 10 parts of plasticizer, 4 parts of heat stabilizer, 1.5 parts of antioxidant.
In the present embodiment, the length of basalt fibre and polyimide fiber is 1.5mm, a diameter of 0.4mm.
In the present embodiment, silica flour, the mesh number of sepiolite powder volume titanium dioxide are 200 mesh；Calcium carbonate is the lightweight carbon of 600 mesh Sour calcium.
In the present embodiment, plasticizer is dioctyl phthalate, dinonyl phthalate, the isodecyl of phthalic acid two Ester, DOTP, diisobutyl phthalate, di-sec-octyl phthalate, trioctyl trimellitate (TOTM) it is mixed Compound.
In the present embodiment, heat stabilizer is lead salt compound stabilizer, the organic based stabilizers of OBS, organic tin stabilizer, liquid Bluk recombination stabilizer, calcium-zinc composite stabilizing agent, the mixture of barium zinc compound stabilizer and potassium zinc composite stabilizer.
In the present embodiment, antioxidant is antioxidant 264, antioxidant 1076, antioxidant CA, antioxidant 330, antioxidant 3114 With the mixture of antioxidant 300.
The present embodiment additionally provides a kind of preparation method of high fire-retardance electric power protection pipe, comprises the following steps：
（1）, by above-mentioned parts by weight weigh various raw materials；
（2）, by polyvinyl chloride, haloflex, Kynoar, basalt fibre, polyimide fiber, calcium carbonate, quartz Powder, sepiolite powder, titanium dioxide, silicone oil, stearic acid, ACR processing aids, plasticizer are added to stirring 35min in high-speed mixer, It is 68 DEG C to control temperature, obtains compound；
（3）, by step（2）In compound, heat stabilizer and antioxidant be added to double screw extruder extruding pelletization, obtain grain Material；
（4）, pellet adds fully automatic integral extruder extrusion Vacuum shaping, coding, cutting, inspection, packs, enters after drying Storehouse.
Wherein,
Step（3）In middle double screw extruder granulation process, temperature control is 200 DEG C, and rotating speed during screw rod shearing is 400r/ min。
Embodiment 3
A kind of high fire-retardance electric power protection pipe of the present embodiment, includes the raw material of following parts by weight：
90 parts of polyvinyl chloride, 18 parts of haloflex, 17 parts of Kynoar, 12 parts of basalt fibre, polyimide fiber 8 Part, 13 parts of calcium carbonate, 14 parts of silica flour, 9 parts of sepiolite powder, 6 parts of titanium dioxide, 5 parts of silicone oil, 4 parts of stearic acid, ACR processing aids 7 Part, 11 parts of plasticizer, 5 parts of heat stabilizer, 2 parts of antioxidant.
In the present embodiment, the length of basalt fibre and polyimide fiber is 2mm, a diameter of 0.5mm.
In the present embodiment, silica flour, the mesh number of sepiolite powder volume titanium dioxide are 200 mesh；Calcium carbonate is the lightweight carbon of 600 mesh Sour calcium.
In the present embodiment, plasticizer is dioctyl phthalate, dinonyl phthalate, the isodecyl of phthalic acid two Ester, DOTP, diisobutyl phthalate, di-sec-octyl phthalate, trioctyl trimellitate (TOTM) it is mixed Compound.
In the present embodiment, heat stabilizer is lead salt compound stabilizer, the organic based stabilizers of OBS, organic tin stabilizer, liquid Bluk recombination stabilizer, calcium-zinc composite stabilizing agent, the mixture of barium zinc compound stabilizer and potassium zinc composite stabilizer.
In the present embodiment, antioxidant is antioxidant 264, antioxidant 1076, antioxidant CA, antioxidant 330, antioxidant 3114 With the mixture of antioxidant 300.
The present embodiment additionally provides a kind of preparation method of high fire-retardance electric power protection pipe, comprises the following steps：
（1）, by above-mentioned parts by weight weigh various raw materials；
（2）, by polyvinyl chloride, haloflex, Kynoar, basalt fibre, polyimide fiber, calcium carbonate, quartz Powder, sepiolite powder, titanium dioxide, silicone oil, stearic acid, ACR processing aids, plasticizer are added to stirring 40min in high-speed mixer, It is 70 DEG C to control temperature, obtains compound；
（3）, by step（2）In compound, heat stabilizer and antioxidant be added to double screw extruder extruding pelletization, obtain grain Material；
（4）, pellet adds fully automatic integral extruder extrusion Vacuum shaping, coding, cutting, inspection, packs, enters after drying Storehouse.
Wherein,
Step（3）In middle double screw extruder granulation process, temperature control is 270 DEG C, and rotating speed during screw rod shearing is 600r/ min。
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (8)

1. a kind of high fire-retardance electric power protection pipe, it is characterised in that：Include the raw material of following parts by weight：
It is 80-90 parts of polyvinyl chloride, 14-18 parts of haloflex, 15-17 parts of Kynoar, 10-12 parts of basalt fibre, poly- 4-8 parts of imide fiber, 9-13 parts of calcium carbonate, 12-14 parts of silica flour, 7-9 parts of sepiolite powder, 2-6 parts of titanium dioxide, silicone oil 1-5 Part, 2-4 parts of stearic acid, 3-7 parts of ACR processing aids, 9-11 parts of plasticizer, 3-5 parts of heat stabilizer, 1-2 parts of antioxidant.
2. high fire-retardance electric power protection pipe according to claim 1, it is characterised in that：Basalt fibre and polyimide fiber Length be 1-2mm, a diameter of 0.2-0.5mm.
3. high fire-retardance electric power protection pipe according to claim 1, it is characterised in that：Silica flour, sepiolite powder volume titanium dioxide Mesh number be 200 mesh；Calcium carbonate is the precipitated calcium carbonate of 600 mesh.
4. high fire-retardance electric power protection pipe according to claim 1, it is characterised in that：Plasticizer is that phthalic acid two is pungent Ester, dinonyl phthalate, diisooctyl phthalate, DOTP, diisobutyl phthalate, neighbour The one or two or more kinds of mixture of phthalic acid di-sec-octyl, trioctyl trimellitate (TOTM).
5. high fire-retardance electric power protection pipe according to claim 1, it is characterised in that：Heat stabilizer is lead salt stable composition Agent, the organic based stabilizers of OBS, organic tin stabilizer, liquid composite stabilizing agent, calcium-zinc composite stabilizing agent, barium zinc stable composition Agent and one or two or more kinds of mixtures of potassium zinc composite stabilizer.
6. high fire-retardance electric power protection pipe according to claim 1, it is characterised in that：Antioxidant is antioxidant 264, antioxidant 1076th, one or two or more kinds of mixtures of antioxidant CA, antioxidant 330, antioxidant 3114 and antioxidant 300.
7. a kind of preparation method of high fire-retardance electric power protection pipe according to claim 1-6 any one, it is characterised in that： Comprise the following steps：
（1）, by above-mentioned parts by weight weigh various raw materials；
（2）, by polyvinyl chloride, haloflex, Kynoar, basalt fibre, polyimide fiber, calcium carbonate, quartz Powder, sepiolite powder, titanium dioxide, silicone oil, stearic acid, ACR processing aids, plasticizer are added to stirring 30- in high-speed mixer 40min, it is 65-70 DEG C to control temperature, obtains compound；
（3）, by step（2）In compound, heat stabilizer and antioxidant be added to double screw extruder extruding pelletization, obtain grain Material；
（4）, pellet adds fully automatic integral extruder extrusion Vacuum shaping, coding, cutting, inspection, packs, enters after drying Storehouse.
8. the preparation method of high fire-retardance electric power protection pipe according to claim 7, it is characterised in that：Step（3）In double spiral shells In bar extruder granulation process, temperature control is 140-270 DEG C, and rotating speed during screw rod shearing is 200-600r/min.
CN201710649441.8A 2017-08-02 2017-08-02 A kind of high fire-retardance electric power protection pipe and preparation method thereof Withdrawn CN107189283A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109535617A (en) * 2018-11-06 2019-03-29 苏州国宇碳纤维科技有限公司 A kind of production technology of PVC cable protection pipe
CN109627635A (en) * 2018-12-19 2019-04-16 郑州登电玄武石纤有限公司 A kind of electrical isolation casing
CN109942982A (en) * 2017-12-21 2019-06-28 洛阳尖端技术研究院 A kind of composite material and preparation method
CN113912940A (en) * 2021-10-26 2022-01-11 张子金 Composite material for cable protection pipe and preparation method and application thereof
CN116135923A (en) * 2023-02-28 2023-05-19 广东联塑科技实业有限公司 Polyvinyl chloride material and preparation method and application thereof

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Application publication date: 20170922