CN104194142A - Low-smoke and zero-halogen fire-retardant cable material - Google Patents

Low-smoke and zero-halogen fire-retardant cable material Download PDF

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Publication number
CN104194142A
CN104194142A CN201410476848.1A CN201410476848A CN104194142A CN 104194142 A CN104194142 A CN 104194142A CN 201410476848 A CN201410476848 A CN 201410476848A CN 104194142 A CN104194142 A CN 104194142A
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China
Prior art keywords
cable material
halide
hdpe
weight
ethylene
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CN201410476848.1A
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Chinese (zh)
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朱忠良
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Individual
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Priority to CN201410476848.1A priority Critical patent/CN104194142A/en
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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
    • 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
    • C08L23/04—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
    • C08L23/0853—Vinylacetate
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • 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
    • C08L2201/22—Halogen free composition
    • 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
    • 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
    • C08L2207/062—HDPE

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a low-smoke and zero-halogen fire-retardant cable material. The low-smoke and zero-halogen fire-retardant cable material comprises an ethylene-vinyl acetate copolymer, high-density polyethylene, surface modifying magnesium hydroxide and a zero-halogen phosphorous flame retardant. The low-smoke and zero-halogen fire-retardant cable material not only emits little smoke during burning, but also combines excellent physical and mechanical properties and fire-retardant performance. The requirements of actual production can be met.

Description

A kind of fireproofing cable material without halide
Technical field
The present invention relates to a kind of CABLE MATERIALS, be specifically related to a kind of fireproofing cable material without halide.
Background technology
In recent years, it is found that, the personnel's cause of death in fire failure is more than 80% relevant with dense smoke and the toxic gas of material production.Along with developing rapidly of China's modern industry, Safety countermeasure also should be more and more perfect.At many large-scale public places, for the secondary disaster of avoiding ignition of cable to cause, while being cable fire, produce a large amount of smog and sour gas, for the electric wire of specializing in electric energy transmitting and communication signals use, not only require to have when cable and surrounding environment are caught fire, have and can stop the flame retardant propertiess such as propagation of flame, and can maintain cable continuation electric energy transmitting and communication signals, and also should there is low-smoke when burning, produce gaseous corrosion low, be beneficial to the performance at staff's safe escape scene, should make cable there is Halogen, low cigarette, the performance such as fire-retardant.
Summary of the invention
The object of the invention is to propose a kind of fireproofing cable material without halide, this fireproofing cable material without halide amount of being fuming when burning is few, does not produce hydrogen halide, and physical and mechanical properties and flame retardant properties are good.
For reaching this object, the present invention by the following technical solutions:
First aspect, the invention provides a kind of fireproofing cable material without halide, comprises ethylene-vinyl acetate copolymer, high density polyethylene(HDPE), surface modification magnesium hydroxide and Halogen phosphorus flame retardant.
The amount of being fuming when ethylene-vinyl acetate copolymer (EVA) and high density polyethylene(HDPE) (HDPE) burning is low, the gaseous corrosion producing is lower, therefore, contriver chooses ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) as the main body framework material of fireproofing cable material without halide.
HDPE mechanical property is fine, and the amount of being fuming is very low, but because molecule is nonpolar, with mineral filler consistency extreme difference; EVA tensile strength is less than HDPE, and elongation at break is larger than HDPE, and molecule has polar link, better than HDPE with mineral filler consistency, therefore, the two is carried out to blend in the proper ratio, can obtain mechanical property excellent and there is the framework material of excellent compatibility with mineral filler.
As preferably, the weight ratio of described ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) is (1～3): 1, be preferably 3:1.
In above-mentioned fireproofing cable material without halide, as preferably, described surface modification magnesium hydroxide is for to be replaced into the magnesium hydroxide after hydrophobic group by the oh group on magnesium hydroxide surface.
Many oh groups are contained on magnesium hydroxide surface, and hydroxyl is a kind of hydrophilic radical, and hydroxyl also can with many other material generation condensation reactions, original hydroxyl can be replaced as to hydrophobic group, thereby can improve the wettability of filler and plastics.
The fire retardant mechanism of magnesium hydroxide absorbs a large amount of combustions heat while being decomposition, reduce the temperature of system, makes material be difficult for catching fire; The magnesium oxide generating is deposited on material surface, plays isolated air; The oxygen concn in a large amount of water vapors meetings dilute combustion district generating, water vapor can absorb smog again simultaneously, plays certain smoke elimination effect.
Along with the addition increase of magnesium hydroxide, the oxygen index of system increases, and flame retardant properties increases, but a large amount of interpolation magnesium hydroxides also can cause system tensile strength and elongation at break all to decline.Therefore, choose suitable magnesium hydroxide addition most important.
In above-mentioned fireproofing cable material without halide, as preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described surface modification magnesium hydroxide is 60-80 weight part, is preferably 70 weight parts.
In addition, in above-mentioned fireproofing cable material without halide, as preferably, described Halogen phosphorus flame retardant is any one or a few in phosphoric acid ester, polyphosphate and red phosphorus.
Phosphorus flame retardant mainly plays fire retardation when condensed phase, especially obvious to oxygen-containing polymers flame retardant effect.Phosphorus flame retardant generates phosphoric acid, metaphosphoric acid, poly-metaphosphoric acid etc. when material combustion, they can make polymkeric substance charing form carbon membrane, poly-metaphosphoric acid is thick liquid film and is covered in solid combustible surface in addition, this solid-state and liquid film can stop free radical to be overflowed, can completely cut off air again, thereby play fire retardation.
Preferably, described Halogen phosphorus flame retardant is red phosphorus;
Preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described red phosphorus is 6-10 weight part, is preferably 8 weight parts.
Most preferably, above-mentioned fireproofing cable material without halide comprises:
As preferably, above-mentioned fireproofing cable material without halide also comprises oxidation inhibitor;
Further preferably, described oxidation inhibitor is any one or a few in antioxidant 1010, antioxidant 1076 and irgasfos 168, is preferably antioxidant 1010;
Further preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described oxidation inhibitor is 1.5-3 weight part, is preferably 2.5 weight parts.
As preferably, above-mentioned fireproofing cable material without halide also comprises other processing aid;
Further preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described other processing aid is 4-8 weight part, be preferably 6 weight parts.
Second aspect, the invention provides the complete processing of the non-halogen flame-retardant cable as described in first aspect, by each raw materials melt blend of described weight part, then this blend composition is hot-forming on vulcanizing press.
Fireproofing cable material without halide of the present invention when burning the amount of being fuming very low, and have physical and mechanical properties concurrently and flame retardant properties is good, can meet the needs of actual production.
Embodiment
Below in conjunction with specific embodiment, further illustrate technical scheme of the present invention.Should be appreciated that enforcement of the present invention is not limited to following examples, those skilled in the art can carry out various improvement based on this, and these also all fall into protection scope of the present invention.
Embodiment 1
By following formula, all raw materials are carried out to melt blending:
Particularly, double roller plastic-making device is warming up to 120 ℃ of left and right, under molten state, by above formula, each raw material is mixed, discharging after certain hour is pressed into respectively 1cm and the thick sample of 3cm on vulcanizing press.
Finally, by mechanical property, the oxygen index of national standard test gained finished product, result is as shown in table 1:
The performance data of table 1, embodiment 1 made CABLE MATERIALS
Performance Testing method Test result
Tensile strength/MPa GB/T1040-1992 10.2
Elongation at break/% GB/T1040-1992 350
Oxygen index GB/T2406-1993 32
Embodiment 2
By following formula, all raw materials are carried out to melt blending:
Particularly, double roller plastic-making device is warming up to 120 ℃ of left and right, under molten state, by above formula, each raw material is mixed, discharging after certain hour is pressed into respectively 1cm and the thick sample of 3cm on vulcanizing press.
Finally, by mechanical property, the oxygen index of national standard test gained finished product, result is as shown in table 2:
The performance data of table 2, embodiment 2 made CABLE MATERIALS
Performance Testing method Test result
Tensile strength/MPa GB/T1040-1992 12.8
Elongation at break/% GB/T1040-1992 368
Oxygen index GB/T2406-1993 33
Embodiment 3
By following formula, all raw materials are carried out to melt blending:
Particularly, double roller plastic-making device is warming up to 120 ℃ of left and right, under molten state, by above formula, each raw material is mixed, discharging after certain hour is pressed into respectively 1cm and the thick sample of 3cm on vulcanizing press.
Finally, by mechanical property, the oxygen index of national standard test gained finished product, result is as shown in table 3:
The performance data of table 3, embodiment 3 made CABLE MATERIALS
Performance Testing method Test result
Tensile strength/MPa GB/T1040-1992 11.8
Elongation at break/% GB/T1040-1992 356
Oxygen index GB/T2406-1993 31
Applicant statement, the present invention illustrates the present invention by above-described embodiment, but that the present invention is not limited to is above-mentioned, does not mean that the present invention must rely on above-mentioned could enforcement.Person of ordinary skill in the field should understand, any improvement in the present invention, to the selection of the interpolation of the equivalence replacement of the selected raw material of the present invention and ancillary component, concrete mode etc., within all dropping on protection scope of the present invention and open scope.

Claims (10)

1. a fireproofing cable material without halide, is characterized in that, comprises ethylene-vinyl acetate copolymer, high density polyethylene(HDPE), surface modification magnesium hydroxide and Halogen phosphorus flame retardant.
2. fireproofing cable material without halide according to claim 1, is characterized in that, the weight ratio of described ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) is (1～3): 1, be preferably 3:1.
3. fireproofing cable material without halide according to claim 1 and 2, is characterized in that, described surface modification magnesium hydroxide is for to be replaced into the magnesium hydroxide after hydrophobic group by the oh group on magnesium hydroxide surface.
4. according to the fireproofing cable material without halide described in claim 1-3 any one, it is characterized in that, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described surface modification magnesium hydroxide is 60-80 weight part, is preferably 70 weight parts.
5. according to the fireproofing cable material without halide described in claim 1-4 any one, it is characterized in that, described Halogen phosphorus flame retardant is any one or a few in phosphoric acid ester, polyphosphate and red phosphorus.
6. fireproofing cable material without halide according to claim 5, is characterized in that, described Halogen phosphorus flame retardant is red phosphorus;
Preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described red phosphorus is 6-10 weight part, is preferably 8 weight parts.
7. according to the fireproofing cable material without halide described in claim 1-6 any one, it is characterized in that, comprising:
8. according to the fireproofing cable material without halide described in claim 1-7 any one, it is characterized in that, also comprise oxidation inhibitor;
Preferably, described oxidation inhibitor is any one or a few in antioxidant 1010, antioxidant 1076 and irgasfos 168, is preferably antioxidant 1010;
Preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described oxidation inhibitor is 1.5-3 weight part, is preferably 2.5 weight parts.
9. according to the fireproofing cable material without halide described in claim 1-8 any one, it is characterized in that, also comprise other processing aid;
Preferably, the gross weight of ethylene-vinyl acetate copolymer and high density polyethylene(HDPE) of take is 100 weight parts, and the consumption of described other processing aid is 4-8 weight part, be preferably 6 weight parts.
10. the complete processing of the non-halogen flame-retardant cable as described in claim 1-9 any one, is characterized in that, by each raw materials melt blend of described weight part, then this blend composition is hot-forming on vulcanizing press.
CN201410476848.1A 2014-09-17 2014-09-17 Low-smoke and zero-halogen fire-retardant cable material Pending CN104194142A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105330943A (en) * 2015-11-25 2016-02-17 国网河南唐河县供电公司 Flame-retardant insulation cable material and preparation method thereof
CN105778242A (en) * 2016-05-10 2016-07-20 国网四川省电力公司自贡供电公司 Composite flame-retardant cable material
CN107189195A (en) * 2017-05-08 2017-09-22 天长市通联焊业有限公司 A kind of LSOH anti-flaming insulated cable material
CN111499961A (en) * 2020-05-25 2020-08-07 上海方之德新材料有限公司 High-flame-retardant low-smoke halogen-free flame-retardant polyolefin tight wrapping material
CN111635579A (en) * 2020-05-25 2020-09-08 上海方之德新材料有限公司 High-cracking-resistance low-smoke halogen-free flame-retardant polyolefin cable material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101286377A (en) * 2008-05-29 2008-10-15 浙江大学 Irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material
CN102250406A (en) * 2011-05-05 2011-11-23 上海邦中新材料有限公司 Polyethylene material with high flame resistance
CN102391566A (en) * 2011-09-22 2012-03-28 安徽塞帕斯电缆材料有限公司 High-flame-retardance low-smoke halogen-free cable material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101286377A (en) * 2008-05-29 2008-10-15 浙江大学 Irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material
CN102250406A (en) * 2011-05-05 2011-11-23 上海邦中新材料有限公司 Polyethylene material with high flame resistance
CN102391566A (en) * 2011-09-22 2012-03-28 安徽塞帕斯电缆材料有限公司 High-flame-retardance low-smoke halogen-free cable material and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105330943A (en) * 2015-11-25 2016-02-17 国网河南唐河县供电公司 Flame-retardant insulation cable material and preparation method thereof
CN105778242A (en) * 2016-05-10 2016-07-20 国网四川省电力公司自贡供电公司 Composite flame-retardant cable material
CN107189195A (en) * 2017-05-08 2017-09-22 天长市通联焊业有限公司 A kind of LSOH anti-flaming insulated cable material
CN111499961A (en) * 2020-05-25 2020-08-07 上海方之德新材料有限公司 High-flame-retardant low-smoke halogen-free flame-retardant polyolefin tight wrapping material
CN111635579A (en) * 2020-05-25 2020-09-08 上海方之德新材料有限公司 High-cracking-resistance low-smoke halogen-free flame-retardant polyolefin cable material

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