CN103881259A - Acid-alkali-salt-corrosion-resistant polyvinyl chloride cable material and preparation method thereof - Google Patents

Acid-alkali-salt-corrosion-resistant polyvinyl chloride cable material and preparation method thereof Download PDF

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Publication number
CN103881259A
CN103881259A CN201410051931.4A CN201410051931A CN103881259A CN 103881259 A CN103881259 A CN 103881259A CN 201410051931 A CN201410051931 A CN 201410051931A CN 103881259 A CN103881259 A CN 103881259A
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parts
polyvinyl chloride
acid
alkali
cable material
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周小刚
储刘生
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ANHUI WANGDA COPPER INDUSTRY DEVELOPMENT Co Ltd
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ANHUI WANGDA COPPER INDUSTRY DEVELOPMENT Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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    • B29C48/92—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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    • 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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
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    • C—CHEMISTRY; METALLURGY
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    • 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
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    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
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    • 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
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    • C08L23/30—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by oxidation
    • C—CHEMISTRY; METALLURGY
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    • 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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B9/16—Auxiliary treatment of granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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    • B29C2948/9218—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C2948/00—Indexing scheme relating to extrusion moulding
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    • B29C2948/92438—Conveying, transporting or storage of articles
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    • 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
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    • B29C2948/9259—Angular velocity
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    • B29C2948/92676—Weight
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
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    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

The invention discloses an acid-alkali-salt-corrosion-resistant polyvinyl chloride cable material and a preparation method thereof. The cable material is prepared from the following raw materials in parts by weight: 65-85 parts of SG-2 polyvinyl chloride resin, 15-20 parts of an ethylene-tetrafluoroethylene copolymer, 10-15 parts of a polypropylene random copolymer, 4-8 parts of oxidized polyethylene wax, 1-2 parts of dimethyl tin isooctyl dithioglycolate, 2-3 parts of zinc stearate, 1-2 parts of magnesium oxide, 1-2 parts of zinc oxide, 5-10 parts of epoxy soybean oil, 8-14 parts of acetyl tributyl citrate, 10-15 parts of decyl dioctyl terephthalate, 5-10 parts of diphenyl phosphate, 6-12 parts of ammonium polyphosphate, 10-15 parts of nano magnesium oxide, 5-10 parts of carbide slag, 5-10 parts of glass powder, 15-20 parts of fumed silica, 1-2 parts of an antioxidant 168, 1-2 parts of an antioxidant DLTP and 3-5 parts of a composite filler. The cable material is excellent in acid, alkali and salt corrosion resistance and good in performances such as electrical insulativity, mechanical strength, flame retardance, weather resistance, high-low-temperature resistance and wear resistance; the service life of PVC (polyvinyl chloride) cable sheaths in salt and alkali regions and coastal regions can be effectively prolonged; and cables can safely run for a relatively long time.

Description

A kind of acid and alkali-resistance brine corrosion polyvinyl chloride cable material and preparation method thereof
Technical field
The present invention relates to a kind of CABLE MATERIALS and preparation method thereof, be specifically related to a kind of acid and alkali-resistance brine corrosion polyvinyl chloride cable material and preparation method thereof.
Background technology
Polyvinyl chloride (PVC) is a kind of purposes general-purpose plastics very widely, and because it has good physical and mechanical properties, electric property, flame retardant properties, low price, and processing characteristics excellence, be therefore widely used as sheath and the insulating material of electric wire.Due to the difference of various places environment, the difference of use occasion, the cable of its use requires also just different.Easily suffer the long-term corrosion of acid, alkali, salt at the PVC cable sheath of varieties in saline-alkali areas and coastland buried-pipe laying, cause cable sheath lose electrical insulating property and plastics are firmly crisp, cracking, thereby make sheath lose function.Therefore, be badly in need of a kind of acid and alkali-resistance brine corrosion polyvinyl chloride cable material that is adapted at varieties in saline-alkali areas and coastland of exploitation.
Summary of the invention
The object of the present invention is to provide a kind of acid and alkali-resistance brine corrosion polyvinyl chloride cable material and preparation method thereof, improve the corrosion resistance of PVC jacketed cable, extend its work-ing life.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of acid and alkali-resistance brine corrosion polyvinyl chloride cable material, raw material by following weight part is made: SG-2 type polyvinyl chloride (PVC) RESINS 65-85, ethylene-tetrafluoroethylene copolymer 15-20, atactic copolymerized polypropene 10-15, oxidized polyethlene wax 4-8, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, Zinic stearas 2-3, magnesium oxide 1-2, zinc oxide 1-2, epoxy soybean oil 5-10, tributyl acetylcitrate 8-14, the last of the ten Heavenly stems dioctyl phthalate dioctyl ester 10-15, two (diphenyl phosphoester) 5-10 of Resorcinol, ammonium polyphosphate 6-12, nano-sized magnesium hydroxide 10-15, carbide slag 5-10, glass powder 5-10, gas-phase silica 15-20, irgasfos 168 1-2, anti-oxidant DLTP 1-2, compounded mix 3-5,
The preparation method of described compounded mix is as follows: a. takes peridotites, kyanite, bauxitic clay by weight 4-6:2-3:1 and mixes, at 880-940 ℃, calcine 1-2h, be cooled to room temperature, then join in the hydrochloric acid soln that concentration is 15-20%, under 70-80 ℃ of bath temperature, be incubated 0.5-1h, filter, filter residue is washed with distilled water to neutrality, dries, and pulverizes, cross 150-200 mesh sieve, stand-by, b, get that to be equivalent to peridotites weight 3-5 concentration be doubly 10-15% ethanolic soln, the powder that adds step a to make, 2000-3000rpm speed lapping 15-20min, and then add polyoxyethylene nonylphenol ether-15 of suspension weight 2-3%, 1-2% methacryloxypropyl trimethoxy silane, the solid content of 5-10% is 50% organosilicon crylic acid latex and the Lauryl Alcohol ester of 0.5-1%, after stirring, sonic oscillation to powder particle in suspension fully disperses, ultrasonic frequency is 20-30kHz, ultrasonic power is 300-400W, filter, dry, c, in the oven dry thing that step b makes, add the flue dust of 3-6%, the stone needle powder of 2-4% and the sec.-propyl three of 1-2% (dioctylphyrophosphoric acid acyloxy) titanic acid ester, 1000-1500rpm high-speed stirring 3-5min, dry, pulverize, cross 200-300 mesh sieve.
A preparation method for acid and alkali-resistance brine corrosion polyvinyl chloride cable material, comprises the following steps:
(1) polyvinyl chloride (PVC) RESINS, ethylene-tetrafluoroethylene copolymer and atactic copolymerized polypropene are dropped in mixing machine and mixed, then add oxidized polyethlene wax, epoxy soybean oil, tributyl acetylcitrate and the last of the ten Heavenly stems dioctyl phthalate dioctyl ester, stir 2-3min, be warming up to 75-85 ℃, add again Resorcinol two (diphenyl phosphoester), ammonium polyphosphates, nano-sized magnesium hydroxide, carbide slag, glass powder and gas-phase silica, stir 4-6min, be warming up to again 95-105 ℃, add remaining raw material, stir 1-2min, discharging to below 50 ℃ time cools;
(2) above-mentioned batch mixing is dropped into extruding pelletization in twin screw extruder, the processing temperature in the each district of twin screw extruder is respectively: 1 district 150-160 ℃, 2 district 155-165 ℃, 3 district 170-180 ℃, 4 district 165-175 ℃, head 170-180 ℃; Extruder screw rotating speed 15-35r/min;
(3) pellet packing after screening magnetic separation, metering is finished product.
Beneficial effect of the present invention:
Not only acid-and base-resisting of CABLE MATERIALS of the present invention, brine corrosion excellent performance, and there is the performances such as good electrical insulating property, physical strength, flame retardant resistance, weathering resistance, resistant of high or low temperature and wear resistance, can effectively extend PVC cable sheath in varieties in saline-alkali areas, work-ing life of coastland, realize the safe operation of cable long period.
Embodiment
A kind of acid and alkali-resistance brine corrosion polyvinyl chloride cable material, raw material by following weight (kg) is made: SG-2 type polyvinyl chloride (PVC) RESINS 75, ethylene-tetrafluoroethylene copolymer 15, atactic copolymerized polypropene 10, oxidized polyethlene wax 6, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1.5, Zinic stearas 2, magnesium oxide 1.5, zinc oxide 1, epoxy soybean oil 8, tributyl acetylcitrate 12, the last of the ten Heavenly stems dioctyl phthalate dioctyl ester 15, two (diphenyl phosphoesters) 8 of Resorcinol, ammonium polyphosphate 10, nano-sized magnesium hydroxide 15, carbide slag 7, glass powder 8, gas-phase silica 18, irgasfos 168 1, anti-oxidant DLTP 2, compounded mix 4,
The preparation method of described compounded mix is as follows: a. takes peridotites, kyanite, bauxitic clay by weight 4:2:1 and mixes, at 940 ℃, calcine 1h, be cooled to room temperature, then join concentration and be in 20% hydrochloric acid soln, under 80 ℃ of bath temperatures, be incubated 0.5h, filter, filter residue is washed with distilled water to neutrality, dries, and pulverizes, cross 150 mesh sieves, stand-by, b, getting the concentration that is equivalent to 3 times of peridotites weight is 15% ethanolic soln, the powder that adds step a to make, 2000rpm speed lapping 20min, and then add polyoxyethylene nonylphenol ether-15 of suspension weight 2.5%, 1.5% methacryloxypropyl trimethoxy silane, 7% solid content is 50% organosilicon crylic acid latex and 0.5% Lauryl Alcohol ester, after stirring, sonic oscillation to powder particle in suspension fully disperses, ultrasonic frequency is 25kHz, ultrasonic power is 400W, filter, dry, c, in the oven dry thing that step b makes, add 4% flue dust, 3% stone needle powder and 1% sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, 1000rpm high-speed stirring 5min, dry, pulverize, cross 200 mesh sieves.
A preparation method for acid and alkali-resistance brine corrosion polyvinyl chloride cable material, comprises the following steps:
(1) polyvinyl chloride (PVC) RESINS, ethylene-tetrafluoroethylene copolymer and atactic copolymerized polypropene are dropped in mixing machine and mixed, then add oxidized polyethlene wax, epoxy soybean oil, tributyl acetylcitrate and the last of the ten Heavenly stems dioctyl phthalate dioctyl ester, stir 3min, be warming up to 80 ℃, add again Resorcinol two (diphenyl phosphoester), ammonium polyphosphates, nano-sized magnesium hydroxide, carbide slag, glass powder and gas-phase silica, stir 5min, be warming up to again 105 ℃, add remaining raw material, stir 1min, discharging to below 50 ℃ time cools;
(2) above-mentioned batch mixing is dropped into extruding pelletization in twin screw extruder, the processing temperature in the each district of twin screw extruder is respectively: 1 155 ℃, district, 2 160 ℃, districts, 175 ℃, 3rd district, 170 ℃, 4th district, 175 ℃ of heads; Extruder screw rotating speed 25r/min;
(3) pellet packing after screening magnetic separation, metering is finished product.
The performance test results of the above-mentioned CABLE MATERIALS making is as follows:
Figure BDA0000466136750000031

Claims (2)

1. an acid and alkali-resistance brine corrosion polyvinyl chloride cable material, it is characterized in that, raw material by following weight part is made: SG-2 type polyvinyl chloride (PVC) RESINS 65-85, ethylene-tetrafluoroethylene copolymer 15-20, atactic copolymerized polypropene 10-15, oxidized polyethlene wax 4-8, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, Zinic stearas 2-3, magnesium oxide 1-2, zinc oxide 1-2, epoxy soybean oil 5-10, tributyl acetylcitrate 8-14, the last of the ten Heavenly stems dioctyl phthalate dioctyl ester 10-15, two (diphenyl phosphoester) 5-10 of Resorcinol, ammonium polyphosphate 6-12, nano-sized magnesium hydroxide 10-15, carbide slag 5-10, glass powder 5-10, gas-phase silica 15-20, irgasfos 168 1-2, anti-oxidant DLTP 1-2, compounded mix 3-5,
The preparation method of described compounded mix is as follows: a. takes peridotites, kyanite, bauxitic clay by weight 4-6:2-3:1 and mixes, at 880-940 ℃, calcine 1-2h, be cooled to room temperature, then join in the hydrochloric acid soln that concentration is 15-20%, under 70-80 ℃ of bath temperature, be incubated 0.5-1h, filter, filter residue is washed with distilled water to neutrality, dries, and pulverizes, cross 150-200 mesh sieve, stand-by, b, get that to be equivalent to peridotites weight 3-5 concentration be doubly 10-15% ethanolic soln, the powder that adds step a to make, 2000-3000rpm speed lapping 15-20min, and then add polyoxyethylene nonylphenol ether-15 of suspension weight 2-3%, 1-2% methacryloxypropyl trimethoxy silane, the solid content of 5-10% is 50% organosilicon crylic acid latex and the Lauryl Alcohol ester of 0.5-1%, after stirring, sonic oscillation to powder particle in suspension fully disperses, ultrasonic frequency is 20-30 kHz, ultrasonic power is 300-400W, filter, dry, c, in the oven dry thing that step b makes, add the flue dust of 3-6%, the stone needle powder of 2-4% and the sec.-propyl three of 1-2% (dioctylphyrophosphoric acid acyloxy) titanic acid ester, 1000-1500rpm high-speed stirring 3-5min, dry, pulverize, cross 200-300 mesh sieve.
2. the preparation method of acid and alkali-resistance brine corrosion polyvinyl chloride cable material according to claim 1, is characterized in that comprising the following steps:
(1) polyvinyl chloride (PVC) RESINS, ethylene-tetrafluoroethylene copolymer and atactic copolymerized polypropene are dropped in mixing machine and mixed, then add oxidized polyethlene wax, epoxy soybean oil, tributyl acetylcitrate and the last of the ten Heavenly stems dioctyl phthalate dioctyl ester, stir 2-3min, be warming up to 75-85 ℃, add again Resorcinol two (diphenyl phosphoester), ammonium polyphosphates, nano-sized magnesium hydroxide, carbide slag, glass powder and gas-phase silica, stir 4-6min, be warming up to again 95-105 ℃, add remaining raw material, stir 1-2min, discharging to below 50 ℃ time cools;
(2) above-mentioned batch mixing is dropped into extruding pelletization in twin screw extruder, the processing temperature in the each district of twin screw extruder is respectively: 1 district 150-160 ℃, 2 district 155-165 ℃, 3 district 170-180 ℃, 4 district 165-175 ℃, head 170-180 ℃; Extruder screw rotating speed 15-35r/min;
(3) pellet packing after screening magnetic separation, metering is finished product.
CN201410051931.4A 2014-02-14 2014-02-14 Acid-alkali-salt-corrosion-resistant polyvinyl chloride cable material and preparation method thereof Pending CN103881259A (en)

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CN116199983A (en) * 2023-02-21 2023-06-02 江西沪昌电缆有限公司 Preparation method of environment-friendly high-strength high-wear-resistance cable

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US6043312A (en) * 1989-06-27 2000-03-28 The Furon Company Low flame and smoke compositions for plenum cables
CN102964724A (en) * 2012-11-27 2013-03-13 宁波一舟塑胶有限公司 Thin-wall insulated wire material for automobile and preparation method thereof
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CN104151740A (en) * 2014-08-07 2014-11-19 安徽玉发塑业有限公司 Corrosion-proof PVC (polyvinyl chloride) pipe and preparation method thereof
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CN116199983B (en) * 2023-02-21 2024-10-01 江西沪昌电缆有限公司 Preparation method of environment-friendly high-strength high-wear-resistance cable

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Application publication date: 20140625