CN109721793A - Halogen-free type highly effective flame-retardant cable material of polyolefin - Google Patents
Halogen-free type highly effective flame-retardant cable material of polyolefin Download PDFInfo
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- CN109721793A CN109721793A CN201711035664.1A CN201711035664A CN109721793A CN 109721793 A CN109721793 A CN 109721793A CN 201711035664 A CN201711035664 A CN 201711035664A CN 109721793 A CN109721793 A CN 109721793A
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Abstract
The present invention discloses a kind of halogen-free type highly effective flame-retardant cable material of polyolefin, and the CABLE MATERIALS is grouped as by the group of following parts by weight: 20 ~ 30 parts of low density polyethylene (LDPE), 10 ~ 20 parts of high density polyethylene (HDPE), 4 ~ 8 parts of propylene-based thermoplastic's elastomer, 15 ~ 30 parts of powdered magnesium hydroxide, 5 ~ 10 parts of stratiform aluminium hydroxide, 20 ~ 35 parts of ethylene-vinyl acetate copolymer, 6 ~ 10 parts of polyolefin elastomer, 0.2 ~ 2 part of magnesium stearate, 0.5 ~ 1 part of silicone oil, 0.2 ~ 0.9 part of oleamide, 0.4 ~ 1.5 part of antioxidant, 2 ~ 4 parts of melamine cyanurate, 1 ~ 5 part of polyphenylene oxide, 2 ~ 5 parts of fluoro phosphorous acid；The density of the polyolefin elastomer should be less than or equal to about 0.88g/cm3.Halogen-free type highly effective flame-retardant cable material of polyolefin of the present invention can reduce magnesium hydroxide and aluminium hydroxide additive amount, the flame retarding efficiency of hydroxide can be greatlyd improve, so that CABLE MATERIALS has higher elongation at break and tensile strength, meet application of the CABLE MATERIALS under harsh environment.
Description
Technical field
The present invention relates to a kind of flame-proof polyolefine cable material more particularly to a kind of halogen-free type highly effective flame-retardant polyolefin cables
Material.
Background technique
Cable is mainly made of cable core, insulating layer and sheath, and wherein insulating layer and sheath are referred to as CABLE MATERIALS, CABLE MATERIALS
It is the important component of cable, there are also the CABLE MATERIALSs of halogen flame can give off poisonous gas and a large amount of cigarette in burning
Mist, during fire, a large amount of sucking toxic gases and smog will lead to people's death, and European Union has limited making for halogen containing flame-retardant
With.Thus, the CABLE MATERIALS for developing low smoke and zero halogen has important application value.But excessive halogen-free flameproof is added in polyolefin
Agent will lead to the severe exacerbation of its mechanical property.Thus, elastomer is added, in system with the blending of polyolefin and elastomer
Object can assign CABLE MATERIALS excellent mechanical property as matrix resin, there is higher elongation at break and tensile strength, meet
The application of CABLE MATERIALS；Meanwhile compared with traditional processing method, the blending effect of reciprocating single-bolt extruder is more preferable, favorably
In the flame retarding efficiency for improving fire retardant, improve the mechanical property of CABLE MATERIALS.
Summary of the invention
The present invention provides a kind of halogen-free type highly effective flame-retardant cable material of polyolefin, this halogen-free type highly effective flame-retardant cable material of polyolefin
The flame retarding efficiency for greatling improve hydroxide reduces influence of the addition to mechanical property of fire retardant.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of halogen-free type highly effective flame-retardant cable material of polyolefin,
The CABLE MATERIALS is grouped as by the group of following parts by weight:
20 ~ 30 parts of low density polyethylene (LDPE),
10 ~ 20 parts of high density polyethylene (HDPE),
4 ~ 8 parts of propylene-based thermoplastic's elastomer,
15 ~ 30 parts of powdered magnesium hydroxide,
5 ~ 10 parts of stratiform aluminium hydroxide,
20 ~ 35 parts of ethylene-vinyl acetate copolymer,
6 ~ 10 parts of polyolefin elastomer,
0.2 ~ 2 part of magnesium stearate,
0.5 ~ 1 part of silicone oil,
0.2 ~ 0.9 part of oleamide,
0.4 ~ 1.5 part of antioxidant,
2 ~ 4 parts of melamine cyanurate,
1 ~ 5 part of polyphenylene oxide,
2 ~ 5 parts of fluoro phosphorous acid.
Related content in above-mentioned technical proposal is explained as follows:
1, in above scheme, the antioxidant is antioxidant 1010, antioxidant 1098, irgasfos 168, antioxidant 245, antioxidant
1076 or the hard alcohol ester of thio-2 acid two in one or more of mixture.
2, in above scheme, vinyl acetate content is 16 ~ 40% in the ethylene-vinyl acetate copolymer.
3, in above scheme, the density of the polyolefin elastomer should be less than or equal to about 0.88g/cm3。
Due to the above technical solutions, the present invention has the following advantages over the prior art:
1, halogen-free type highly effective flame-retardant cable material of polyolefin of the present invention is based on 20 ~ 30 parts of low density polyethylene (LDPE), high density polyethylene (HDPE)
10 ~ 20 parts, 15 ~ 30 parts of powdered magnesium hydroxide, stratiform aluminium hydroxide are added in 4 ~ 8 parts of systems of propylene-based thermoplastic's elastomer
(LDH) 5 ~ 10 parts, 1 ~ 5 part of polyphenylene oxide, 2 ~ 4 parts of melamine cyanurate, using powdered and 2 kinds of forms of stratiform magnesium hydroxide
It is applied in combination with aluminium hydroxide (LDH), magnesium hydroxide and aluminium hydroxide additive amount, and 1 ~ 5 part of polyphenylene oxide, cyanuric acid three can be reduced
2 ~ 4 parts of poly cyanamid of addition can greatly improve the flame retarding efficiency of hydroxide, reduce the addition of fire retardant to mechanical property
Influence.
2, halogen-free type highly effective flame-retardant cable material of polyolefin of the present invention is based on 20 ~ 30 parts of low density polyethylene (LDPE), high-density polyethylene
20 ~ 35 parts of ethylene-vinyl acetate copolymer (EVA) is added in 4 ~ 8 parts of 10 ~ 20 parts of alkene, propylene-based thermoplastic's elastomer systems, is gathered
6 ~ 10 parts of olefin elastomer, hence it is evident that the mechanical property for improving CABLE MATERIALS greatlys improve the toughness of CABLE MATERIALS, and it is crisp to solve CABLE MATERIALS
Property excessive problem, assign material excellent mechanical property；Secondly, further adding 2 ~ 5 parts of fluoro phosphorous acid in its formula, make
Obtaining CABLE MATERIALS has higher elongation at break and tensile strength, meets application of the CABLE MATERIALS under harsh environment, further improves
The mechanical property of CABLE MATERIALS.
Specific embodiment
The present invention will be further described below with reference to examples:
Embodiment 1 ~ 4: a kind of halogen-free type highly effective flame-retardant cable material of polyolefin, the CABLE MATERIALS are grouped by the group of following parts by weight
At as shown in table 1:
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| 20 ~ 30 parts of low density polyethylene (LDPE) | 25 parts | 22 parts | 28 parts | 30 parts |
| 10 ~ 20 parts of high density polyethylene (HDPE) | 12 parts | 20 parts | 18 parts | 15 parts |
| 4 ~ 8 parts of propylene-based thermoplastic's elastomer | 5 parts | 8 parts | 6 parts | 6 parts |
| 15 ~ 30 parts of powdered magnesium hydroxide | 16 parts | 25 parts | 28 parts | 22 parts |
| 5 ~ 10 parts of stratiform aluminium hydroxide | 8 parts | 6 parts | 10 parts | 8 parts |
| 20 ~ 35 parts of ethylene-vinyl acetate copolymer | 22 parts | 30 parts | 25 parts | 32 parts |
| 6 ~ 10 parts of polyolefin elastomer | 8 parts | 6 parts | 9 parts | 10 parts |
| 0.2 ~ 2 part of magnesium stearate | 0.5 part | 1.8 part | 0.6 part | 0.9 part |
| 0.5 ~ 1 part of silicone oil | 0.9 part | 1 part | 0.6 part | 0.7 part |
| 0.2 ~ 0.9 part of oleamide | 0.5 part | 0.8 part | 0.3 part | 0.5 part |
| 0.4 ~ 1.5 part of antioxidant | 0.8 part | 1 part | 1.3 part | 0.7 part |
| 2 ~ 4 parts of melamine cyanurate | 3 parts | 2.5 part | 3.2 part | 3 parts |
| 1 ~ 5 part of polyphenylene oxide | 2 parts | 1.2 part | 3 parts | 4 parts |
| 2 ~ 5 parts of fluoro phosphorous acid | 4.5 part | 3.8 part | 2.2 part | 2 parts |
The antioxidant of embodiment 1 is antioxidant 1010, and the antioxidant of embodiment 2 is the antioxygen of irgasfos 168, embodiment 3
Agent is the mixture of antioxidant 245, antioxidant 1076, and the antioxidant of embodiment 4 is the hard alcohol ester of thio-2 acid two.
Vinyl acetate content is 16 ~ 40% in above-mentioned ethylene-vinyl acetate copolymer.
The density of said polyolefins elastomer should be less than or equal to about 0.88g/cm3。
A kind of preparation method with above-mentioned halogen-free type highly effective flame-retardant cable material of polyolefin, comprising the following steps:
Step 1: by 20 ~ 30 parts of low density polyethylene (LDPE), 10 ~ 20 parts of high density polyethylene (HDPE), 4 ~ 8 parts of propylene-based thermoplastic's elastomer,
In 5 ~ 10 parts of 15 ~ 30 parts of powdered magnesium hydroxide, stratiform aluminium hydroxide addition high-speed mixers, with 500- at 95-105 DEG C
The speed of 800rpm is stirred, then by 20 ~ 35 parts of ethylene-vinyl acetate copolymer, 6 ~ 10 parts of polyolefin elastomer investments
In the double extruders of screw rod, 0.2 ~ 2 part of magnesium stearate, the control of extruder melt zone temperature are added at 140-180 DEG C, in 400-
Melt blending 10-20min under the revolving speed of 600r/min, then extruding pelletization is to get particle；
Step 2: 0.5 ~ 1 part of silicone oil, 2 ~ 5 parts of fluoro phosphorous acid, 0.2 ~ 0.9 part of oleamide are added with particle obtained above
Enter to 10 ~ 30min of mixing on kneading machine, temperature is 100 ~ 120 DEG C, obtains rubber compound；
Step 3: by rubber compound obtained above and 0.4 ~ 1.5 part of antioxidant, 2 ~ 4 parts of melamine cyanurate, polyphenylene oxide 1 ~ 5
In part investment mixer, after being kneaded 2 ~ 3min, mixer screw speed is 50-300r/min, and temperature is controlled at 140 ~ 190 DEG C；
Step 4: will be conveyed into screw extruder after the blended stock obtained after mixing shearing squeezes out processing, fuselage temperature when extrusion
Degree is 140 ± 10 DEG C, and head temperature is 110 ± 10 DEG C, is vulcanized after extrusion, the hot pressing 8-10min at 160-180 DEG C, often
Temperature cold pressing 4-6min, 6 ~ 10MPa of sulfide stress, linear velocity is 12 ~ 15m/min out, to obtain CABLE MATERIALS
1 ~ 4 halogen-free type highly effective flame-retardant cable material of polyolefin of embodiment, performance are shown in Table 2:
2 halogen-free type highly effective flame-retardant cable material of polyolefin index of table
When using above-mentioned halogen-free type highly effective flame-retardant cable material of polyolefin, 20 ~ 30 parts of low density polyethylene (LDPE) are based on, high-density polyethylene
10 ~ 20 parts of alkene, 15 ~ 30 parts of powdered magnesium hydroxide, stratiform aluminium hydroxide are added in 4 ~ 8 parts of systems of propylene-based thermoplastic's elastomer
(LDH) 5 ~ 10 parts, 1 ~ 5 part of polyphenylene oxide, 2 ~ 4 parts of melamine cyanurate, using powdered and 2 kinds of forms of stratiform magnesium hydroxide
It is applied in combination with aluminium hydroxide (LDH), magnesium hydroxide and aluminium hydroxide additive amount, and 1 ~ 5 part of polyphenylene oxide, cyanuric acid three can be reduced
2 ~ 4 parts of poly cyanamid of addition can greatly improve the flame retarding efficiency of hydroxide, reduce the addition of fire retardant to mechanical property
Influence；Again, 20 ~ 30 parts of low density polyethylene (LDPE), 10 ~ 20 parts of high density polyethylene (HDPE), propylene-based thermoplastic's elastomer 4 are based on
20 ~ 35 parts of ethylene-vinyl acetate copolymer (EVA), 6 ~ 10 parts of polyolefin elastomer are added in ~ 8 parts of systems, hence it is evident that improve cable
The mechanical property of material greatlys improve the toughness of CABLE MATERIALS, solves the problems, such as that CABLE MATERIALS brittleness is excessive, assigns material excellent power
Learn performance；Secondly, its formula in further add 2 ~ 5 parts of fluoro phosphorous acid so that CABLE MATERIALS have higher elongation at break and
Tensile strength meets application of the CABLE MATERIALS under harsh environment, further improves the mechanical property of CABLE MATERIALS.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of halogen-free type highly effective flame-retardant cable material of polyolefin, it is characterised in that: the CABLE MATERIALS by following parts by weight group
It is grouped as:
20 ~ 30 parts of low density polyethylene (LDPE),
10 ~ 20 parts of high density polyethylene (HDPE),
4 ~ 8 parts of propylene-based thermoplastic's elastomer,
15 ~ 30 parts of powdered magnesium hydroxide,
5 ~ 10 parts of stratiform aluminium hydroxide,
20 ~ 35 parts of ethylene-vinyl acetate copolymer,
6 ~ 10 parts of polyolefin elastomer,
0.2 ~ 2 part of magnesium stearate,
0.5 ~ 1 part of silicone oil,
0.2 ~ 0.9 part of oleamide,
0.4 ~ 1.5 part of antioxidant,
2 ~ 4 parts of melamine cyanurate,
1 ~ 5 part of polyphenylene oxide,
2 ~ 5 parts of fluoro phosphorous acid.
2. halogen-free type highly effective flame-retardant cable material of polyolefin according to claim 1, it is characterised in that: the antioxidant is anti-
It is a kind of in oxygen agent 1010, antioxidant 1098, irgasfos 168, antioxidant 245, antioxidant 1076 or the hard alcohol ester of thio-2 acid two
Or several mixture.
3. halogen-free type highly effective flame-retardant cable material of polyolefin according to claim 1, it is characterised in that: the ethyl vinyl acetate
Vinyl acetate content is 16 ~ 40% in ethylene copolymer.
4. halogen-free type highly effective flame-retardant cable material of polyolefin according to claim 1, it is characterised in that: the polyolefin bullet
The density of property body should be less than or equal to about 0.88g/cm3。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711035664.1A CN109721793A (en) | 2017-10-30 | 2017-10-30 | Halogen-free type highly effective flame-retardant cable material of polyolefin |
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|---|---|---|---|
| CN201711035664.1A CN109721793A (en) | 2017-10-30 | 2017-10-30 | Halogen-free type highly effective flame-retardant cable material of polyolefin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194843A (en) * | 2020-10-28 | 2021-01-08 | 济南逆火新材料有限公司 | Halogen-free environment-friendly high-flame-retardant polyolefin material, preparation method thereof and cable sheath |
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| CN101560314A (en) * | 2009-06-09 | 2009-10-21 | 中科英华湖州工程技术研究中心有限公司 | Halogen-free phosphorus-free inflaming retarding polyolefine material prepared by radiation grafting technology, preparation method and the application thereof |
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| JP2011080020A (en) * | 2009-10-09 | 2011-04-21 | Hitachi Cable Ltd | Non-halogen flame-retardant resin composition, manufacturing method therefor, and electric cable using the same |
| CN104364309A (en) * | 2012-07-09 | 2015-02-18 | 古河电气工业株式会社 | Non-halogen flame-retardant resin composition and insulated wire/cable having non-halogen flame-retardant resin composition |
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| CN101148526A (en) * | 2007-09-04 | 2008-03-26 | 华南理工大学 | Metal hydroxide halogen-free anti-flaming polyolefin composition and preparation method thereof |
| CN101402758A (en) * | 2008-11-17 | 2009-04-08 | 北京理工大学 | Non-halogen flame-proof polyvinyl composite and method of producing the same |
| CN101560314A (en) * | 2009-06-09 | 2009-10-21 | 中科英华湖州工程技术研究中心有限公司 | Halogen-free phosphorus-free inflaming retarding polyolefine material prepared by radiation grafting technology, preparation method and the application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112194843A (en) * | 2020-10-28 | 2021-01-08 | 济南逆火新材料有限公司 | Halogen-free environment-friendly high-flame-retardant polyolefin material, preparation method thereof and cable sheath |
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Application publication date: 20190507 |
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