CN103087394B - A kind of low-smoke halogen-free flame-proof cable material - Google Patents

A kind of low-smoke halogen-free flame-proof cable material Download PDF

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Publication number
CN103087394B
CN103087394B CN201310061139.2A CN201310061139A CN103087394B CN 103087394 B CN103087394 B CN 103087394B CN 201310061139 A CN201310061139 A CN 201310061139A CN 103087394 B CN103087394 B CN 103087394B
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Prior art keywords
low
free flame
smoke halogen
proof cable
cable
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CN103087394A (en
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熊建斌
王亚新
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Hechang Electricity Industry (Zhaoqing) Co., Ltd.
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ZHAOQING ZHONGQIAO ELECTRICAL INDUSTRIAL Co Ltd
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Abstract

The present invention proposes a kind of low-smoke halogen-free flame-proof cable material, comprise each component of following mass percent: EVA resin 21%-29%, PE grafts 3%-9%, inorganic combustion inhibitor 60%-70%, metal oxide 1%-3%, vinyltrimethoxy silane 0.2%-0.5%, lubricant 1%-3%, EBS? 0.1%-0.3%, oxidation inhibitor 0.05%-0.5%, by adopting above component and proportioning thereof, the described low-smoke halogen-free flame-proof cable material obtained has good low-smoke and flame retardant effect, the requirement of vertical combustion test can be met, may be used for alternative traditional PVC cable material, use safer.

Description

A kind of low-smoke halogen-free flame-proof cable material
Technical field
The present invention relates to electric material field, refer to a kind of low-smoke halogen-free flame-proof cable material especially.
Background technology
In recent years, it is found that the personnel's cause of death more than 80% in fire failure is relevant with toxic gas with the dense smoke that material produces.Along with developing rapidly of China's modern industry, Safety countermeasure also should be more and more perfect, at many large-scale public places, the secondary disaster (producing a large amount of smog and sour gas during cable fire) caused for avoiding ignition of cable, to the electric wire specializing in electric energy transmitting and communication signals use, not only require to have when cable and surrounding environment catch fire, have and can stop the flame retardant propertiess such as propagation of flame, and cable continuation electric energy transmitting and communication signals can be maintained, and also should have low-smoke when burning, produce gaseous corrosion low, be beneficial to worker safety and withdraw on-the-spot performance, namely cable should be made to have Halogen, low cigarette, the performance such as fire-retardant.
Also there are some technology about flame retardant cable open at present, common low-smoke halogen-free cable is with EVA(ethylene-vinyl acetate copolymer) and PE(polyethylene) resin is base material, add inorganic combustion inhibitor, coupling agent, oxidation inhibitor, the auxiliary agents such as lubricant mix through high speed mixer, Banbury mixer banburying, plastified by parallel double-screw again, last shaping at single-screw machine extruding pelletization, and this kind of cable because of proportioning unreasonable, cause flame retarding efficiency low, self-extinguishing difference etc., the requirement of vertical combustion test can not be met, therefore, be badly in need of a kind of cable material with low smoke high flame retardant effect, meet the need of market.
Summary of the invention
The present invention proposes a kind of low-smoke halogen-free flame-proof cable material, solves cable-flame retardant weak effect in prior art, and the problem that combustion fumes is dense.
Technical scheme of the present invention is achieved in that a kind of low-smoke halogen-free flame-proof cable material, comprises each component of following mass percent:
Preferably, the mass percent of each component is:
Preferably, described inorganic combustion inhibitor is magnesium hydroxide, the decomposition temperature of magnesium hydroxide more than 340 DEG C, to the flame retardant properties improving wire rod comparatively other inorganic combustion inhibitors such as aluminium hydroxide etc. be eager to excel a lot, better flame retardant effect can be reached.
Preferably, described metal oxide is the mixture of a kind of in zinc oxide, titanium oxide or two kinds, adds the self-extinguishing that described metal oxide can improve halogen-free material, coordinates other flame retardance elements, play good synergistic effect in component.
Preferably, described oxidation inhibitor is antioxidant 1010, i.e. four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and described oxidation inhibitor can inhibited oxidation effect, extends the work-ing life of described low-smoke halogen-free flame-proof cable material.
Further, described lubricant is silicone powder.
Carry out the preparation mixing of component according to above-mentioned each component and proportioning, by melting mixing, through the plasticizing of combined parallel twin screw, single-screw machine extruding pelletization, can obtain the finished product of described low-smoke halogen-free flame-proof cable material through wind cold drying.
Beneficial effect of the present invention is: the present invention adopts described EVA resin, described PE connects a thing as base material, and add magnesium hydroxide as described inorganic combustion inhibitor, and metal oxide, reach fire-retardant effect, simultaneously, lubricant is also added in described low-smoke halogen-free flame-proof cable material, EBS, oxidation inhibitor, and as other components such as vinyltrimethoxy silane of coupling agent, improve the properties of described low-smoke halogen-free flame-proof cable material, long service life etc., described low-smoke halogen-free flame-proof cable material shows and is particularly splendid in low-smoke and flame retardant performance, the VW-1 vertical combustion testing standard requirement in U.S. UL1518 can be met, thus use safer, may be used for alternative traditional PVC cable material.
Embodiment
For understanding the present invention better; below by following examples, elaboration concrete is further done to the present invention; but unintelligible is limitation of the invention; for some nonessential improvement and adjustment that those skilled in the art does according to foregoing invention content, be also considered as dropping in protection scope of the present invention.
Each component disclosed according to the present invention and proportioning thereof, we obtain following examples:
Embodiment 1
Embodiment 2
Embodiment 3
Component in embodiment 1 to 3 and proportioning are obtained finished product 1,2 and 3 according to information disclosed in the present invention, then carries out vertical combustion test, can standard-required be met.
We carry out performance test to enforcement 1 again, obtain following test data:
Physical strength is 12.2MPA, and elongation is 185%, and oxygen index (OI) is 41.
Above experimental data illustrates, this low-smoke halogen-free flame-proof cable material disclosed by the invention has excellent flame retardant effect, and can meet the requirement of vertical combustion test, meanwhile, other properties do well equally, may be used for replacing traditional PVC cable material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1. a low-smoke halogen-free flame-proof cable material, is characterized in that, comprises each component of following mass percent:
EVA resin 21%-29%
PE grafts 3%-9%
Inorganic combustion inhibitor 60%-70%
Metal oxide 1%-3%
Vinyltrimethoxy silane 0.2%-0.5%
Lubricant 1%-3%
EBS0.1%-0.3%
Oxidation inhibitor 0.05%-0.5%;
Described inorganic combustion inhibitor is magnesium hydroxide;
Described metal oxide is the mixture of a kind of in zinc oxide, titanium oxide or two kinds;
Described lubricant is silicone powder.
2. low-smoke halogen-free flame-proof cable material as described in claim 1, is characterized in that, comprise each component of following mass percent:
EVA resin 25.74%
PE grafts 6.44%
Inorganic combustion inhibitor 64.4%
Metal oxide 1.6%
Vinyltrimethoxy silane 0.31%
Lubricant 1.28%
EBS0.13%
Oxidation inhibitor 0.1%.
3. low-smoke halogen-free flame-proof cable material as described in claim 1, is characterized in that: described oxidation inhibitor is antioxidant 1010.
CN201310061139.2A 2013-02-26 2013-02-26 A kind of low-smoke halogen-free flame-proof cable material Active CN103087394B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310061139.2A CN103087394B (en) 2013-02-26 2013-02-26 A kind of low-smoke halogen-free flame-proof cable material

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Application Number Priority Date Filing Date Title
CN201310061139.2A CN103087394B (en) 2013-02-26 2013-02-26 A kind of low-smoke halogen-free flame-proof cable material

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CN103087394B true CN103087394B (en) 2016-01-20

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103571008B (en) * 2013-09-30 2016-05-04 芜湖航天特种电缆厂 A kind of low smoke halogen-free fire retardant polyolefin cable material
CN103571009B (en) * 2013-09-30 2016-04-13 芜湖航天特种电缆厂 Fireproofing cable material without halide
CN106519409B (en) * 2016-10-27 2017-09-12 肇庆中乔电气实业有限公司 A kind of irradiated crosslinking low-smoke and halogen-free flame retardant cable material and preparation method thereof
CN106967245A (en) * 2017-04-26 2017-07-21 晶锋集团(天长)高分子材料有限公司 A kind of preparation method of antiseptic fire-retardation low smoke halogen-free flame-retardant polyolefin shielded cable material
CN106987046A (en) * 2017-05-26 2017-07-28 东台市荣达塑业有限公司 A kind of high flame retardant, the cable of corrosion resistance are formulated with PVC
CN109486050A (en) * 2017-09-13 2019-03-19 上海电缆厂(南京)有限公司 A kind of fire-retardant acid and alkali-resistance cable material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1465616A (en) * 2002-06-21 2004-01-07 中国科学院化学研究所 Magnetsium hydroxide halogen-free polythene flame redardant composite material
CN101712875A (en) * 2009-11-24 2010-05-26 无锡市英普立阻燃材料有限公司 Magnesium hydroxide flame retardant and flame retardant polymer for cables

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1465616A (en) * 2002-06-21 2004-01-07 中国科学院化学研究所 Magnetsium hydroxide halogen-free polythene flame redardant composite material
CN101712875A (en) * 2009-11-24 2010-05-26 无锡市英普立阻燃材料有限公司 Magnesium hydroxide flame retardant and flame retardant polymer for cables

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Address after: 526238 Shali Industrial Park, Zhaoqing High-tech Zone, Guangdong Province

Patentee after: Hechang Electricity Industry (Zhaoqing) Co., Ltd.

Address before: 526238 Shali Industrial Park, Zhaoqing High-tech Zone, Guangdong Province

Patentee before: Zhaoqing Zhongqiao Electrical Industrial Co., Ltd.

CP01 Change in the name or title of a patent holder