CN109517263A - A kind of low smoke density halogen-free flame-retardant composite material and preparation method thereof - Google Patents
A kind of low smoke density halogen-free flame-retardant composite material and preparation method thereof Download PDFInfo
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- CN109517263A CN109517263A CN201811557171.9A CN201811557171A CN109517263A CN 109517263 A CN109517263 A CN 109517263A CN 201811557171 A CN201811557171 A CN 201811557171A CN 109517263 A CN109517263 A CN 109517263A
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of low smoke density halogen-free flame-retardant composite materials and preparation method thereof, the material comprises the following components in parts by weight: 100 parts of base resin, 90 ~ 160 parts of halogen-free flame retardants, 1 ~ 5 part of lubricant, 1 ~ 5 part of smoke suppressant, 0.2 ~ 0.8 part of antioxidant, the base resin comprises the following components in parts by weight: 30 ~ 70 parts of ethylene-vinyl acetate copolymer, 5 ~ 20 parts of maleic anhydride grafts, 5 ~ 20 parts of metallocene linear-low density polyethylene resin, 10 ~ 30 parts of nitrile rubber;Preparation method are as follows: first weighed each component in proportion;Then each component is put in proportion into mixer and carries out mixing;After 11 ~ 13min of mixing, the nitile-butadiene rubber composite material can be obtained using Dual inoculation extruding pelletization.The present invention can be used in manufacturing wire and cable, have good insulation performance, flame retardant property and physical property, and smoke-producing amount is considerably less, will not more generate the halogen acid gas of severe toxicity.
Description
Technical field
The present invention relates to cable material fields, more particularly to a kind of low smoke density halogen-free flame-retardant composite material and its preparation
Method.
Background technique
The development of modern society be unable to do without the application of electric power, has to when using electrical equipment using wire and cable.When
When fire occurs, contains halogen acid gas in the smog that common wiring cable generates when burning due to there is strong asphyxiating.By grinding
The cause of death for studying carefully when discovery fire occurs 80% is that the dense smoke that burning generates causes people's asphyxia, produces cigarette when so producing a kind of burning
Less and with flame retardant property material is the key that prepare low-smoke cable.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of low smoke density halogen-free flame-retardant composite material and
Preparation method, the material can be used in manufacturing wire and cable, have good insulation performance, flame retardant property and physical
Can, and smoke-producing amount is considerably less, will not more generate the halogen acid gas of severe toxicity.
The purpose of the present invention is achieved through the following technical solutions: a kind of low smoke density halogen-free flame-retardant composite material,
It comprises the following components in parts by weight: 100 parts of base resin, 90~160 parts of halogen-free flame retardants, 1~5 part of lubricant, smoke suppressant 1~
5 parts, 0.2~0.8 part of antioxidant, does not include any halogen raw material, the halogen acid gas of severe toxicity will not be generated.
The base resin comprises the following components in parts by weight: 30~70 parts of ethylene-vinyl acetate copolymer, maleic acid
5~20 parts of acid anhydride graft, 5~20 parts of metallocene linear-low density polyethylene, 10~30 parts of nitrile rubber.Wherein, fourth ethylene vinegar
The smoke density of sour ethylene copolymer and nitrile rubber is all smaller, in burning, will not produce thick smoke, then people will not be caused to suffocate.
The content of vinyl acetate is 18-28% in the ethylene-vinyl acetate copolymer.
The content of acrylonitrile is 20-28% in the nitrile rubber.
The selection of the above parts by weight raw material is for guaranteeing the mechanical property of final products.
The halogen-free flame retardants includes one of aluminium hydroxide, magnesium hydroxide, ammonium polyphosphate or a variety of combinations.
The lubricant includes one of silicone master batch, stearic acid, PE wax or a variety of combinations.
The smoke suppressant is the combination of one or both of ammonium octamolybdate, molybdenum trioxide.
The antioxidant is the mixture of antioxidant 1010 and the double lauryls of thio-2 acid.
A kind of preparation method of the low smoke density halogen-free flame-retardant composite material, comprising the following steps:
S1: each component has been weighed in proportion;
S2: each component is put in proportion into mixer and carries out mixing;
S3: after 11~13min of mixing, the nitrile rubber composite wood can be obtained using Dual inoculation extruding pelletization
Material.
The beneficial effects of the present invention are: the nitile-butadiene rubber composite material prepared in the present invention have good insulation performance,
Flame retardant property and physical property, smoke-producing amount is considerably less, the half of only common low smoke halogen-free fire retardant polyolefin cable material, more
The halogen acid gas of severe toxicity will not be generated, security performance is high.
Specific embodiment
Below in conjunction with embodiment, technical solution of the present invention is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Technical staff's every other embodiment obtained under the premise of not making the creative labor belongs to what the present invention protected
Range.
Embodiment one
S1: each component has been weighed in proportion;
Wherein, base resin: 50 parts of ethylene-vinyl acetate copolymer (EVA) resin, 15 parts of maleic anhydride grafts, cyclopentadienyl gold
Belong to 5 parts of linear low density polyethylene resin, 30 parts of nitrile rubber (NBR);
Halogen-free flame retardants: 60 parts of aluminium hydroxide, 30 parts of magnesium hydroxide, 30 parts of ammonium polyphosphate;
Lubricant: 2 parts of silicone master batch, 1 part of stearic acid, 1 part of PE wax;
Smoke suppressant: 2 parts of ammonium octamolybdate, 2 parts of molybdenum trioxide;
Antioxidant: double 0.2 part of the lauryls of 0.2 part of antioxidant 1010, thio-2 acid;
S2: each component is put in proportion into mixer and carries out mixing;
S3: after mixing 11min, the nitile-butadiene rubber composite material can be obtained using Dual inoculation extruding pelletization.
Embodiment two
S1: each component has been weighed in proportion;
Wherein, base resin: 60 parts of ethylene-vinyl acetate copolymer (EVA) resin, 10 parts of maleic anhydride grafts, cyclopentadienyl gold
Belong to 10 parts of linear low density polyethylene resin, 20 parts of nitrile rubber (NBR);
Halogen-free flame retardants: 80 parts of aluminium hydroxide, 50 parts of magnesium hydroxide, 10 parts of ammonium polyphosphate;
Lubricant: 2 parts of silicone master batch, 2 parts of stearic acid, 1 part of PE wax;
Smoke suppressant: 2 parts of ammonium octamolybdate, 1 part of molybdenum trioxide;
Antioxidant: double 0.2 part of the lauryls of 0.4 part of antioxidant 1010, thio-2 acid;
S2: each component is put in proportion into mixer and carries out mixing;
S3: after mixing 13min, the nitile-butadiene rubber composite material can be obtained using Dual inoculation extruding pelletization.
Embodiment three
S1: each component has been weighed in proportion;
Wherein, base resin: 70 parts of ethylene-vinyl acetate copolymer (EVA) resin, 5 parts of maleic anhydride grafts, cyclopentadienyl gold
Belong to 15 parts of linear low density polyethylene resin, 10 parts of nitrile rubber (NBR);
Halogen-free flame retardants: 50 parts of aluminium hydroxide, 10 parts of magnesium hydroxide, 30 parts of ammonium polyphosphate;
Lubricant: 1 part of silicone master batch, 1 part of stearic acid, 1 part of PE wax;
Smoke suppressant: 3 parts of ammonium octamolybdate, 2 parts of molybdenum trioxide;
Antioxidant: double 0.2 part of the lauryls of 0.3 part of antioxidant 1010, thio-2 acid;
S2: each component is put in proportion into mixer and carries out mixing;
S3: after mixing 12min, the nitile-butadiene rubber composite material can be obtained using Dual inoculation extruding pelletization.
Example IV
S1: each component has been weighed in proportion;
Wherein, base resin: 30 parts of ethylene-vinyl acetate copolymer (EVA) resin, 20 parts of maleic anhydride grafts, cyclopentadienyl gold
Belong to 20 parts of linear low density polyethylene resin, 30 parts of nitrile rubber (NBR);
Halogen-free flame retardants: 100 parts of aluminium hydroxide, 40 parts of magnesium hydroxide, 20 parts of ammonium polyphosphate;
Lubricant: 1 part of silicone master batch, 2 parts of stearic acid, 2 parts of PE wax;
Smoke suppressant: 1 part of ammonium octamolybdate, 2 parts of molybdenum trioxide;
Antioxidant: double 0.4 part of the lauryls of 0.4 part of antioxidant 1010, thio-2 acid;
S2: each component is put in proportion into mixer and carries out mixing;
S3: after mixing 12min, the nitile-butadiene rubber composite material can be obtained using Dual inoculation extruding pelletization.
Comparative example
Selecting the trade mark that producer is Dow DOW production is 1742 products.
The performance data of each embodiment and comparative example is as shown in the table.
By upper table it is found that the nitile-butadiene rubber composite material prepared in the present invention has good mechanical property, smoke-producing amount
The half of only common low smoke halogen-free fire retardant polyolefin cable material, security performance are high.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (8)
1. a kind of low smoke density halogen-free flame-retardant composite material, which is characterized in that comprise the following components in parts by weight: base resin
100 parts, 90 ~ 160 parts of halogen-free flame retardants, 1 ~ 5 part of lubricant, 1 ~ 5 part of smoke suppressant, 0.2 ~ 0.8 part of antioxidant;
The base resin comprises the following components in parts by weight: 30 ~ 70 parts of ethylene-vinyl acetate copolymer, maleic anhydride grafting
5 ~ 20 parts of object, 5 ~ 20 parts of metallocene linear-low density polyethylene resin, 10 ~ 30 parts of nitrile rubber.
2. a kind of low smoke density halogen-free flame-retardant composite material according to claim 1, it is characterised in that: the ethylene vinegar
The content of vinyl acetate is 18-28% in sour ethylene copolymer.
3. a kind of low smoke density halogen-free flame-retardant composite material according to claim 1, it is characterised in that: the nitrile rubber
The content of middle acrylonitrile is 20-28%.
4. a kind of low smoke density halogen-free flame-retardant composite material according to claim 1, it is characterised in that: the Halogen resistance
Firing agent includes one of aluminium hydroxide, magnesium hydroxide, ammonium polyphosphate or a variety of combinations.
5. a kind of low smoke density halogen-free flame-retardant composite material according to claim 1, it is characterised in that: the lubricant
Including one of silicone master batch, stearic acid, PE wax or a variety of combinations.
6. a kind of low smoke density halogen-free flame-retardant composite material according to claim 1, it is characterised in that: the smoke suppressant
For the combination of one or both of ammonium octamolybdate, molybdenum trioxide.
7. a kind of low smoke density halogen-free flame-retardant composite material according to claim 1, it is characterised in that: the antioxidant
For the mixture of antioxidant 1010 and the double lauryls of thio-2 acid.
8. a kind of preparation method of low smoke density halogen-free flame-retardant composite material according to claim 1-7, special
Sign is, comprising the following steps:
S1: each component has been weighed in proportion;
S2: each component is put in proportion into mixer and carries out mixing;
S3: after 11 ~ 13min of mixing, the nitile-butadiene rubber composite material can be obtained using Dual inoculation extruding pelletization.
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CN201811557171.9A CN109517263A (en) | 2018-12-19 | 2018-12-19 | A kind of low smoke density halogen-free flame-retardant composite material and preparation method thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110396229A (en) * | 2019-08-13 | 2019-11-01 | 中辰电缆股份有限公司 | A kind of new-energy automobile charging pile cable material and preparation method thereof |
CN112778616A (en) * | 2020-12-14 | 2021-05-11 | 中广核拓普(四川)新材料有限公司 | Smooth halogen-free low-smoke flame-retardant cable material and preparation method thereof |
CN113429667A (en) * | 2021-08-03 | 2021-09-24 | 安徽滁州德威新材料有限公司 | Low-smoke halogen-free high-flame-retardant B1/B2 material and preparation method thereof |
CN116102807A (en) * | 2022-12-16 | 2023-05-12 | 弘飞线缆集团股份公司 | Corrosion-resistant cable sheath material and cable |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008150557A (en) * | 2006-12-20 | 2008-07-03 | Hitachi Cable Ltd | Non-halogen flame-retardant composition, and electric wire and cable using the same |
CN103087369A (en) * | 2013-01-30 | 2013-05-08 | 北京化工大学常州先进材料研究院 | Low-smoke fire-retardant high-strength high-oil-resistance cable sheath material and preparation method thereof |
CN104004262A (en) * | 2014-06-06 | 2014-08-27 | 杭州双马高分子材料科技有限公司 | Irradiation crosslinking oil-resistance low-smoke halogen-free flame-retardant polyolefin sheath material and preparation method thereof |
CN104194136A (en) * | 2014-08-19 | 2014-12-10 | 安徽蒙特尔电缆集团有限公司 | High-performance environment-friendly cable sheath material |
CN104212051A (en) * | 2014-09-04 | 2014-12-17 | 扬州市好年华橡塑有限公司 | 90 DEG C irradiation cross-linked, low-smoke, halogen-free and flame-retardant polyolefin oil-resistant cable material and preparation method thereof |
-
2018
- 2018-12-19 CN CN201811557171.9A patent/CN109517263A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008150557A (en) * | 2006-12-20 | 2008-07-03 | Hitachi Cable Ltd | Non-halogen flame-retardant composition, and electric wire and cable using the same |
CN103087369A (en) * | 2013-01-30 | 2013-05-08 | 北京化工大学常州先进材料研究院 | Low-smoke fire-retardant high-strength high-oil-resistance cable sheath material and preparation method thereof |
CN104004262A (en) * | 2014-06-06 | 2014-08-27 | 杭州双马高分子材料科技有限公司 | Irradiation crosslinking oil-resistance low-smoke halogen-free flame-retardant polyolefin sheath material and preparation method thereof |
CN104194136A (en) * | 2014-08-19 | 2014-12-10 | 安徽蒙特尔电缆集团有限公司 | High-performance environment-friendly cable sheath material |
CN104212051A (en) * | 2014-09-04 | 2014-12-17 | 扬州市好年华橡塑有限公司 | 90 DEG C irradiation cross-linked, low-smoke, halogen-free and flame-retardant polyolefin oil-resistant cable material and preparation method thereof |
Non-Patent Citations (1)
Title |
---|
赵斌等: "无卤阻燃聚烯烃电缆料的研究进展", 《中国塑料》 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110396229A (en) * | 2019-08-13 | 2019-11-01 | 中辰电缆股份有限公司 | A kind of new-energy automobile charging pile cable material and preparation method thereof |
CN112778616A (en) * | 2020-12-14 | 2021-05-11 | 中广核拓普(四川)新材料有限公司 | Smooth halogen-free low-smoke flame-retardant cable material and preparation method thereof |
CN113429667A (en) * | 2021-08-03 | 2021-09-24 | 安徽滁州德威新材料有限公司 | Low-smoke halogen-free high-flame-retardant B1/B2 material and preparation method thereof |
CN116102807A (en) * | 2022-12-16 | 2023-05-12 | 弘飞线缆集团股份公司 | Corrosion-resistant cable sheath material and cable |
CN116102807B (en) * | 2022-12-16 | 2024-07-05 | 弘飞线缆集团股份公司 | Corrosion-resistant cable sheath material and cable |
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Application publication date: 20190326 |