CN110564031A - flame-retardant cable material and preparation method thereof - Google Patents
flame-retardant cable material and preparation method thereof Download PDFInfo
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- 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
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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
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- H01B3/441—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 alkenes
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- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
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- 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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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Abstract
the invention discloses a flame-retardant cable material which comprises, by weight, 25-30 parts of polyolefin resin, 15-25 parts of a flame retardant, 3-6 parts of a lubricant, 1-5 parts of an antioxidant, 11-15 parts of di (2-ethylhexyl) phthalate and 5-10 parts of a compatilizer.
Description
Technical Field
The invention relates to a flame-retardant cable material and a preparation method thereof.
Background
at present, the electric wire and the electric cable have the functions of electric power transmission and information transmission and play an important role in life and production of people. The cable material with low smoke, low toxicity, excellent flame retardant property and insulating property is designed and prepared, and becomes a hotspot of current flame retardant research.
At present, with the rapid development of economy and science and technology, the living quality level of people is obviously improved, and the protection of personal and property safety in fire is a great concern of people, so that in the intensive areas of people such as high-rise buildings, hotels, public entertainment places, large supermarkets, hospitals, stations, airports, subways, rail transit, coal mines, public transportation facilities and the like, the normal operation of power cables and communication signals must be kept; the fire incident in the 2010 Shanghai glue State shows the importance of fire protection and safety. The cable material with low smoke, low toxicity, excellent flame retardant property and insulating property is designed and prepared, and becomes a hotspot of current flame retardant research.
However, the fire-resistant cable on the market generally adopts the conventional magnesium oxide mineral fire-resistant insulated cable or the mica tape type fire-resistant cable. The magnesium oxide mineral fireproof insulated cable needs special equipment with complex process, low efficiency, high production cost and great investment, and can only be used for low-voltage fireproof cables; the bending radius is large; the laying operation is very complicated. The mica tape type fire-resistant cable needs special wrapping equipment, needs multilayer winding, is complex in process and high in production cost, and is easy to become brittle and fall off after being combusted in a fire disaster, so that the real fire-resistant effect cannot be achieved.
therefore, the preparation of a flame-retardant and fireproof cable material is a problem to be solved by those skilled in the art.
disclosure of Invention
in view of the above, the invention provides a flame-retardant fireproof cable material with low production cost, simple process and good fireproof effect.
in order to achieve the purpose, the invention adopts the following technical scheme: the flame-retardant cable material comprises, by weight, 25-30 parts of polyolefin resin, 15-25 parts of a flame retardant, 3-6 parts of a lubricant, 1-5 parts of an antioxidant, 11-15 parts of di (2-ethylhexyl) phthalate and 5-10 parts of a compatilizer.
the invention has the beneficial effects that: the polyolefin resin is adopted in the invention, so that the impact strength, the flexibility resistance and the electrical insulation of the cable material can be improved; the di (2-ethylhexyl) phthalate is used as the plasticizer, so that the plasticizing efficiency is high, the volatility is low, the low-temperature flexibility is good, the water extraction resistance is high, the electrical performance is high, and the heat resistance and the weather resistance of the cable material are improved; therefore, the cable material has strong flame retardant and heat resistant performances.
preferably, the composite material also comprises 2-6 parts of a filler, wherein the filler is one or more of calcium carbonate, talc, diatomite, silica, mica powder, asbestos, wood powder and powdered cellulose.
Preferably, the polyolefin resin is one or more of low density polyethylene, polypropylene and poly-1-butene. The low density polyethylene is linear low density polyethylene, and the density of the low density polyethylene is between 0.915 and 0.940 g/cubic centimeter. The flame retardant is magnesium hydroxide and/or aluminum hydroxide.
preferably, the lubricant is one or more of stearic acid, white oil, organic silicone oil and paraffin.
Preferably, the antioxidant is one or more of antioxidant CA, antioxidant 164 and antioxidant 168.
Preferably, the compatibilizer is an ethylene-propylene copolymer grafted maleic anhydride copolymer and/or SEBS grafted maleic anhydride copolymer.
the invention also provides a preparation method of the flame-retardant cable material, which comprises the following steps:
step (1): weighing the raw materials, and dividing the compatilizer into a first part and a second part according to the mass ratio of 5: 2;
step (2): adding the polyolefin resin and the first part of compatilizer into a mixer, and stirring for 8-10min at the speed of 200-280 r/min;
and (3): adding a flame retardant, a lubricant, an antioxidant, dibutyl phthalate and a second part of compatilizer into the mixer in the step (2), and stirring for 8-10min at 380r/min of 360-;
And (4): and putting the mixture into an extruder, extruding, granulating and drying to obtain the flame-retardant cable material.
Preferably, in the step (4), the temperature of the feeding section of the extruder is 120-160 ℃, the temperature of the melting section is 180-190 ℃, the temperature of the melt conveying section is 190-195 ℃, the temperature of the mixing section is 198-200 ℃, the temperature of the homogenizing section is 190-192 ℃, and the temperature of the metering section of the extruder head is 190-192 ℃.
Preferably, the drying temperature in the step (4) is 55-60 ℃, and the drying time is 2-2.5 h.
Preferably, the modified activated carbon further comprises 2-6 parts of a filler, wherein the filler is one or more of calcium carbonate, talc, diatomite, silica, mica powder, asbestos, wood powder and powdered cellulose, and is added in the step (3).
According to the technical scheme, compared with the prior art, the invention discloses the flame-retardant cable material and the preparation method thereof.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
the embodiment of the invention discloses a flame-retardant fireproof cable material.
Example 1
Flame-retardant cable material: 25g of low-density polyethylene, 15g of magnesium hydroxide, 3g of stearic acid, an antioxidant CA1g, 11g of di (2-ethylhexyl) phthalate, 5g of ethylene-propylene copolymer grafted maleic anhydride copolymer and 2g of calcium carbonate.
the preparation method comprises the following steps: step (1): weighing the raw materials, and dividing the ethylene-propylene copolymer grafted maleic anhydride copolymer into two parts, wherein the first part is 3g, and the second part is 2 g;
Step (2): adding low-density polyethylene and a first part of ethylene-propylene copolymer grafted maleic anhydride copolymer into a mixer, and stirring for 10min at 250 r/min;
And (3): adding calcium carbonate, magnesium hydroxide, stearic acid, an antioxidant CA, di (2-ethylhexyl) phthalate and a second part of ethylene-propylene copolymer grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
And (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
Example 2
Flame-retardant cable material: 30g of low-density polyethylene, 25g of magnesium hydroxide, 6g of stearic acid, 5 parts of antioxidant CA, 15 parts of di (2-ethylhexyl) phthalate, 10 parts of ethylene-propylene copolymer grafted maleic anhydride copolymer and 6g of calcium carbonate.
the preparation method comprises the following steps: step (1): weighing the raw materials, and dividing the ethylene-propylene copolymer grafted maleic anhydride copolymer into two parts, wherein the first part is 3g, and the second part is 2 g;
Step (2): copolymerizing low-density polyethylene and a first part of ethylene-propylene copolymer grafted maleic anhydride, adding into a mixer, and stirring for 10min at 250 r/min;
And (3): adding calcium carbonate, magnesium hydroxide, stearic acid, an antioxidant CA, di (2-ethylhexyl) phthalate and a second part of ethylene-propylene copolymer grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
And (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
Example 3
Flame-retardant cable material: 27g of low-density polyethylene, 20g of magnesium hydroxide, 4g of stearic acid, 3 parts of antioxidant CA, 13 parts of di (2-ethylhexyl) phthalate, 7 parts of ethylene-propylene copolymer grafted maleic anhydride copolymer and 4g of calcium carbonate.
the preparation method comprises the following steps: step (1): weighing the raw materials, and dividing the ethylene-propylene copolymer grafted maleic anhydride copolymer into two parts, wherein the first part is 4.2g, and the second part is 2.8 g;
Step (2): copolymerizing low-density polyethylene and a first part of ethylene-propylene copolymer grafted maleic anhydride, adding into a mixer, and stirring for 10min at 250 r/min;
And (3): adding calcium carbonate, magnesium hydroxide, stearic acid, an antioxidant CA, di (2-ethylhexyl) phthalate and a second part of ethylene-propylene copolymer grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
And (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
Example 4
Flame-retardant cable material: 20g of low-density-grade ethylene, 5g of polypropylene, 10g of magnesium hydroxide, 5g of aluminum hydroxide, 1g of white oil, 2g of organic silicone oil, 0.5g of antioxidant CA0, 1680.5 g of antioxidant, 11g of di (2-ethylhexyl) phthalate, 3g of ethylene-propylene copolymer grafted maleic anhydride copolymer, 2g of SEBS grafted maleic anhydride copolymer, 2g of talc and 2g of diatomite.
The preparation method comprises the following steps: step (1): weighing the raw materials, and mixing and dividing an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS (styrene-ethylene-butylene-styrene) grafted maleic anhydride copolymer into two parts, wherein the first part is 3g, and the second part is 2 g;
Step (2): adding the mixture of the low-density polyethylene, the first part of the ethylene-propylene copolymer grafted maleic anhydride copolymer and the SEBS grafted maleic anhydride copolymer into a mixer, and stirring for 10min at the speed of 250 r/min;
and (3): adding talc, diatomite, magnesium hydroxide, aluminum hydroxide, white oil, organic silicon oil, an antioxidant CA, an antioxidant 168 di (2-ethylhexyl) phthalate and a second mixture of an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
and (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
example 5
Flame-retardant cable material: 20g of low-density-grade ethylene, 5g of polypropylene, 10g of magnesium hydroxide, 5g of aluminum hydroxide, 1g of white oil, 2g of organic silicone oil, 0.5g of antioxidant CA0, 1680.5 g of antioxidant, 11g of di (2-ethylhexyl) phthalate, 3g of ethylene-propylene copolymer grafted maleic anhydride copolymer, 2g of SEBS grafted maleic anhydride copolymer, 1g of calcium carbonate and 2g of talc.
The preparation method comprises the following steps: step (1): weighing the raw materials, and mixing and dividing an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS (styrene-ethylene-butylene-styrene) grafted maleic anhydride copolymer into two parts, wherein the first part is 3g, and the second part is 2 g;
Step (2): adding the mixture of the low-density polyethylene, the first part of the ethylene-propylene copolymer grafted maleic anhydride copolymer and the SEBS grafted maleic anhydride copolymer into a mixer, and stirring for 10min at the speed of 250 r/min;
and (3): adding calcium carbonate, talc, magnesium hydroxide, aluminum hydroxide, white oil, organic silicone oil, an antioxidant CA, an antioxidant 168 di (2-ethylhexyl) phthalate and a second mixture of an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
And (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
Example 6
flame-retardant cable material: 15g of low-density-grade ethylene, 15g of polypropylene, 15g of magnesium hydroxide, 10g of aluminum hydroxide, 4g of white oil, 2g of organic silicone oil, 2.5g of antioxidant CA2, 1682.5 g of antioxidant, 15g of di (2-ethylhexyl) phthalate, 5g of ethylene-propylene copolymer grafted maleic anhydride copolymer, 5g of SEBS grafted maleic anhydride copolymer, 2g of calcium carbonate and 4g of talc.
The preparation method comprises the following steps: step (1): weighing the raw materials, and mixing and dividing an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS (styrene-ethylene-butylene-styrene) grafted maleic anhydride copolymer into two parts, wherein the first part is 6g, and the second part is 4 g;
Step (2): adding the mixture of the low-density polyethylene, the first part of the ethylene-propylene copolymer grafted maleic anhydride copolymer and the SEBS grafted maleic anhydride copolymer into a mixer, and stirring for 10min at the speed of 250 r/min;
And (3): adding calcium carbonate, talc, magnesium hydroxide, aluminum hydroxide, white oil, organic silicone oil, an antioxidant CA, an antioxidant 168 di (2-ethylhexyl) phthalate and a second mixture of an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
And (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
Example 7
Flame-retardant cable material: 13g of low-density-grade ethylene, 14g of polypropylene, 10g of magnesium hydroxide, 10g of aluminum hydroxide, 2g of white oil, 2g of organic silicone oil, an antioxidant CA2g, 1681 g of antioxidant, 14g of di (2-ethylhexyl) phthalate, 4g of ethylene-propylene copolymer grafted maleic anhydride copolymer, 3g of SEBS grafted maleic anhydride copolymer, 3g of calcium carbonate, 1g of talc and 2g of diatomite.
The preparation method comprises the following steps: step (1): weighing the raw materials, and mixing and dividing an ethylene-propylene copolymer grafted maleic anhydride copolymer and an SEBS (styrene-ethylene-butylene-styrene) grafted maleic anhydride copolymer into two parts, wherein the first part is 6g, and the second part is 4 g;
Step (2): adding the mixture of the low-density polyethylene, the first part of the ethylene-propylene copolymer grafted maleic anhydride copolymer and the SEBS grafted maleic anhydride copolymer into a mixer, and stirring for 10min at the speed of 250 r/min;
And (3): adding calcium carbonate, talc, diatomite magnesium hydroxide, aluminum hydroxide, white oil, organic silicon oil, an antioxidant CA, an antioxidant 168 di (2-ethylhexyl) phthalate and a second mixture of ethylene-propylene copolymer grafted maleic anhydride copolymer and SEBS grafted maleic anhydride copolymer into the mixer in the step (2), and stirring for 10min at 370r/min to obtain a mixture;
And (4): putting the mixture into a double-screw extruder, wherein the temperature of a feeding section of the extruder is 140 ℃, the temperature of a melting section of the extruder is 185 ℃, the temperature of a melt conveying section of the extruder is 192 ℃, the temperature of a mixing section of the extruder is 200 ℃, the temperature of a homogenizing section of the extruder is 190 ℃, and the temperature of a metering section of a machine head of the extruder is 190 ℃ for extrusion granulation; and drying at 60 ℃ for 2h to obtain the flame-retardant cable material.
the following performance tests are all performed according to national standards.
The results of the various performance tests for examples 1-7 are shown in Table 1:
It is apparent from the above table 1 that the flame-retardant cable material prepared by using the raw materials and the preparation method of the present invention has good temperature resistance, tensile strength, humidity resistance and insulation properties.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The flame-retardant cable material is characterized by comprising the following components in parts by weight:
2. The flame-retardant cable material according to claim 1, further comprising 2-6 parts of a filler, wherein the filler is one or more of calcium carbonate, talc, diatomaceous earth, silica, mica powder, asbestos, wood powder and powdered cellulose.
3. The flame-retardant cable material according to claim 1 or 2, wherein the polyolefin resin is one or more of low-density polyethylene, polypropylene and poly-1-butene; the flame retardant is magnesium hydroxide and/or aluminum hydroxide.
4. The flame-retardant cable material according to claim 1 or 2, wherein the lubricant is one or more of stearic acid, white oil, silicone oil and paraffin.
5. The flame-retardant cable material as claimed in claim 1 or 2, wherein the antioxidant is one or more of antioxidant CA, antioxidant 164 and antioxidant 168.
6. The flame-retardant cable material according to claim 1 or 2, wherein the compatibilizer is an ethylene-propylene copolymer grafted maleic anhydride copolymer and/or an SEBS grafted maleic anhydride copolymer.
7. a preparation method of a flame-retardant cable material comprises the following steps:
Step (1): weighing the raw materials according to any one of claims 1 to 6, and dividing the compatilizer into a first part and a second part according to the mass ratio of 3: 2;
step (2): adding the polyolefin resin and the first part of compatilizer into a mixer, and stirring for 8-10min at the speed of 200-280 r/min;
And (3): adding a flame retardant, a lubricant, an antioxidant, dibutyl phthalate and a second part of compatilizer into the mixer in the step (2), and stirring for 8-10min at 380r/min of 360-;
and (4): and putting the mixture into an extruder, extruding, granulating and drying to obtain the flame-retardant cable material.
8. the method as claimed in claim 7, wherein the temperature of the feeding section of the extruder in the step (4) is 120-.
9. the method for preparing a flame-retardant cable material according to claim 7, wherein the drying temperature in the step (4) is 55-60 ℃ and the drying time is 2-2.5 h.
10. The preparation method of the flame-retardant cable material according to claim 7, characterized by further comprising 2-6 parts of a filler, wherein the filler is one or more of calcium carbonate, talc, diatomaceous earth, silica, mica powder, asbestos, wood powder and powdered cellulose, and the filler is added in the step (3).
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| CN201810569773.XA CN110564031A (en) | 2018-06-05 | 2018-06-05 | flame-retardant cable material and preparation method thereof |
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| CN201810569773.XA Pending CN110564031A (en) | 2018-06-05 | 2018-06-05 | flame-retardant cable material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480522A (en) * | 2020-11-17 | 2021-03-12 | 常州市沃科科技有限公司 | Fireproof mica insulation composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070149680A1 (en) * | 2003-11-12 | 2007-06-28 | Kim Oh Y | Halogen free polymer and automotive wire using thereof |
| CN107266787A (en) * | 2017-07-11 | 2017-10-20 | 合肥东恒锐电子科技有限公司 | A kind of production technology of High-temperature-resandant andant flame-retardant cable material |
| CN108084559A (en) * | 2017-12-18 | 2018-05-29 | 宁波斯凯勒智能科技有限公司 | A kind of polypropylene cable material with good flame-retardance energy and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070149680A1 (en) * | 2003-11-12 | 2007-06-28 | Kim Oh Y | Halogen free polymer and automotive wire using thereof |
| CN107266787A (en) * | 2017-07-11 | 2017-10-20 | 合肥东恒锐电子科技有限公司 | A kind of production technology of High-temperature-resandant andant flame-retardant cable material |
| CN108084559A (en) * | 2017-12-18 | 2018-05-29 | 宁波斯凯勒智能科技有限公司 | A kind of polypropylene cable material with good flame-retardance energy and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480522A (en) * | 2020-11-17 | 2021-03-12 | 常州市沃科科技有限公司 | Fireproof mica insulation composite material and preparation method thereof |
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