CN103087531A - Fire retardant foaming material for halogen-free flame retardant cable and preparation method of fire retardant foaming material - Google Patents
Fire retardant foaming material for halogen-free flame retardant cable and preparation method of fire retardant foaming material Download PDFInfo
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- CN103087531A CN103087531A CN2013100346861A CN201310034686A CN103087531A CN 103087531 A CN103087531 A CN 103087531A CN 2013100346861 A CN2013100346861 A CN 2013100346861A CN 201310034686 A CN201310034686 A CN 201310034686A CN 103087531 A CN103087531 A CN 103087531A
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Abstract
The invention relates to a fire retardant foaming material for a halogen-free flame retardant cable and a preparation method of the fire retardant foaming material. The fire retardant foaming material comprises the following components by weight ratio: 100 phr of basic material, 40-50 phr of acid source, 20-25 phr of char forming agent, 10-150 phr of foaming agent, 80-110 phr of ceramic shell forming agent and 20-30 phr of lubricating agent. An effective foaming structure layer increases the temperature gradient of the interior and the surface of the cable to enable the interior temperature to be much lower than the flame temperature, prevents flame from damaging the interior of the cable, isolates external oxygen from the cable, guarantees the cable to be capable of resisting high temperature flame impact and ablation of an HCF (hermetically coated fiber) of 1100 DEG C for a long time, takes effects of fire retardance and heat insulation, is excellent in low-smoke, halogen-free, flame-retardant and soft performance, can be wrapped on the surface of a cable jacket by pressing, and meets the requirement of cable industries and petroleum platform cables on HCF flame resistance.
Description
Technical field
The present invention relates to a kind of halogen-free flame-retardant cable back-fire relief foam material and preparation method thereof.The present invention relates to oil drilling platform cable technology field, the back-fire relief foam material of the flame of anti-HCF provided by the invention is specially adapted to the hazardous location that oil drilling platform has the burning of the inflammable oil gas of many places carbon hydrocarbon, dust explosion, also applicable to the fire safety evaluating protection to the bunch of cables shutoff of Highrise buildings, sub., large-scale power station and important important places such as industrial and mining enterprises.
Background technology
At present, cable mainly contains two classes with refractory materials: (1) fire-resistant safety cable mica tape, mica tape are a kind of high performance mica insulation goods, have good resistance to elevated temperatures and resistance to flame energy.Have good flexibility during the mica paper tape normality, be applicable to main refractory insulating layer in various flame resistant cables.Substantially there is not the volatilization of harmful smog when meeting the naked light burning, so this product is not only effective for cable, and also very safe.(2) adding inorganic metal oxygen oxide compound or organic fire-retardant as the fire retardant material of main system, as take aluminium hydroxide, magnesium hydroxide as main, composite a small amount of synergy fire retardant is as zinc borate, red phosphorus, organophosphate, organosilicon etc.; Or the interpolation brominated flame-retardant, take antimonous oxide as the cooperative flame retardant component, add simultaneously high amount of inorganic filler to realize fire-retardant packing material.Twentieth century beginning of the nineties, expansion type flame retardant has appearred again, this expanding fire retardant is under flame interaction, expand rapidly at material surface by chemical reaction and physical action, form the very low porous dense char layer of thermal conductivity, can effectively intercept the conduction of flame heat regulating, play fire-resistant and the back-fire relief effect; In addition, have the advantages such as flame retarding efficiency is high, the amount of being fuming is few, nothing drippage due to expansion type flame retardant, it is also one of important fire retardant of present bittern-free flame-proof material, be mainly used in the power construction industry to the shutoff of the flame proof passageways such as cable, rarely found production and application for cable industry, the report of more rare ability high temperature more than 1100 ℃.
fire-resistant isinglass belt, though have fire performance preferably, the fluorophlogopite belt of synthetic particularly, do not contain crystal water, 1375 ℃ of fusing points, can anti-higher temperature, safety margin is large, resistance to elevated temperatures is best, yet, because mica tape is to be bonded on woven fiber glass through extruding with mica paper, oven dry forms, cause mica tape in flame, inefficacy by tackiness agent, layering and being scattered, and then most fire prevention and defencive function have still been lost, for supplying a gap, can only adopt the Multi-stacking compaction formula wrapped, namely waste man-hour, greatly improved again cost, deficiency in economic performance.
To add inorganic metal oxygen oxide compound or organic fire-retardant as the fire retardant material of main system, although can pass through preferred fire retardant, accomplish LSOH anti-flaming and be foamed into shell, but still can not satisfy cable industry and petroleum platform cable to the requirement of the flame of anti-HCF.
Summary of the invention
The purpose of this invention is to provide a kind of halogen-free flame-retardant cable back-fire relief foam material and preparation method thereof, this material namely has good heat-resisting, low-smoke non-halogen flame-retardant, softness, the back-fire relief and the protection function that have again anti-1100 ℃ of HCF flames, the surface of cable sheath be can be extruded in, cable industry and petroleum platform cable satisfied to the requirement of the flame of anti-HCF.
The technical scheme that adopts is:
A kind of halogen-free flame-retardant cable of the present invention is with the back-fire relief foam material of the flame of anti-HCF, it is characterized in that by following raw materials according and by weight (phr) content form:
Above-mentioned base material is polydimethyl ethylene methacrylic radical siloxane, be commonly called as methyl vinyl silicone rubber, molecular weight (ten thousand) 50～70, fugitive constituent (150 ℃ * 3h) %≤3.0, contents of ethylene (mo1%) 0.07～03, the high-and low-temperature resistance that tool is good, can be-50～250 ℃ of lower long term operations, its protection against the tide, electrical insulating property, anti-electric arc, corona and ageing-resistant, ozone resistance is very good.Silastic surface also has good not viscosity and hydrophobic nature.Organo-silicone rubber not only has the material softness, easily fill and loading level large, special and the inorganic consistency is good, extrude with technological forming goodly, and main component is silicon-dioxide, stable chemical nature, do not burn, especially in flame, can with the effective ceramic of other inorganic.
Above-mentioned acid source is high polymerization degree APP (APP), the polymerization degree＞700,1% thermal weight loss decomposition temperature 〉=270 ℃, solubleness in water≤0.5g/100ml H2O (25 ℃).The Tripyrophosphoric acid that ammonium polyphosphate (APP) produces by thermolysis is strong acid, makes very soon the char-forming agent dehydration, becomes charcoal.High polymerization degree APP (APP) is that the phosphorus that development in recent years is got up is inorganic combustion inhibitor, high due to its phosphorus content, nitrogen content is many, Heat stability is good, water-soluble little, be bordering on neutrality, good flame retardation effect, be the indispensable main raw material of expansion type flame retardant, have low cigarette, the advantage such as nontoxic.
Above-mentioned char-forming agent is tetramethylolmethane (PER), is a kind of white or flaxen crystalline powder, coordinates with ammonium polyphosphate (APP) to get expansion type flame retardant.
It can be one or more in the fillers such as potter's clay, china clay, kaolin, ammonium pentaborate, metaboric acid borax, anhydrous zinc borate, hydration zinc borate, aluminium hydroxide that above-mentioned pottery changes into the shell agent.Pottery in the present invention changes into the shell agent can clinkering become ceramic structure in flame, can play expansion texture to solidify and enhancement, prevents that the expansion texture that foams from subsiding and being out of shape, and destroys back-fire relief and heat-blocking action.
Above-mentioned whipping agent is one or more in trimeric cyanamide, Dyhard RU 100.
Above-mentioned lubricant is dimethyl siloxane, is commonly called as silicone oil, extrudes rheological and the oilness of processing in order to improvement.
A kind of halogen-free flame-retardant cable back-fire relief foam material and preparation method thereof of the present invention, it is characterized in that: by formulation weight part batching, first silica gel is dropped in Banbury mixer, respectively other auxiliary agent is added again carry out mixing 5～10min after, being placed in two roller mills turns refining and descends sheet or slitting to get final product, or directly by after the two roller mill mixing 5～10min of normal temperature, lower or slitting.
A kind of halogen-free flame-retardant cable back-fire relief foam material of the present invention, to adopt intumescent flame retardant mechanism, change into the shell agent and lubricant forms by base material, acid source, char-forming agent, whipping agent, pottery, namely acid source decomposes the generation dewatering agent when being heated, it can form ester with char-forming agent, and ester then dehydrated crosslinking forms charcoal, and whipping agent discharges a large amount of gas help foamed chars simultaneously, the ceramic that again can the quickening system expands namely effectively solidifies and strengthens the foaming structure that expands.Effectively the foaming structure layer has not only improved the thermograde inner and surface, and make internal temperature much lower than flame temperature, stoped the destruction of flame to cable inside, and completely cut off again entering of extraneous oxygen, guarantee that cable can tolerate impact and the ablation of 1100 ℃ of thermal-flames for a long time, plays back-fire relief and heat insulation effect.
Embodiment
The present invention selects methylethyl silicon rubber 110-2 as base material, can highly fill, and processing performance is good, satisfies the performance requriementss such as flexible cable fully.
A kind of halogen-free flame-retardant cable of the present invention is as follows with back-fire relief foam material and preparation method thereof: by formulation weight part batching, first silica gel is dropped in Banbury mixer, drop into again ammonium polyphosphate, whipping agent and char-forming agent, add pottery to become the shell agent after banburying 2～3min, add again lubricant and coupling agent, discharging after banburying 2min.Sizing material after banburying after thin-pass in mill in 18 o'clock three times, then is played five triangle bags, then thin-pass is rolled over the lower sheet of page or a tie rod for 2 times afterwards; Or directly by after the two roller mill mixing 5～10min of normal temperature, lower or slitting.
Specific embodiment 1～3 halogen-free flame-retardant cable is as follows with back-fire relief foam material component:
Technique effect of the present invention:
Adopting Halogen or rubber-type screw rod normal temperature to extrude with a kind of halogen-free flame-retardant cable of the present invention with the back-fire relief foam material gets final product.7 * 1.5mm of trial-production
2The cable inner sheath, its test-results is as follows:
The flame of the anti-HCF performance of this cable satisfies the performance requriements of 1100 ℃ of NEK 606 regulations fully, is applicable to the use under the easy burst such as oil drilling platform, boats and ships, petrochemical complex, refinery, service station, oil depot high temperature fire envrionment conditions fully.
The invention is not restricted to above-described embodiment, content of the present invention is described all can be implemented, and has described good result.
Claims (8)
1. halogen-free flame-retardant cable back-fire relief foam material is characterized in that its component and weight proportion are:
2. a kind of halogen-free flame-retardant cable back-fire relief foam material according to claim 1, it is characterized in that: described base material is polydimethyl ethylene methacrylic radical siloxane.
3. a kind of halogen-free flame-retardant cable back-fire relief foam material according to claim 1, it is characterized in that: described acid source is high polymerization degree APP.
4. a kind of halogen-free flame-retardant cable back-fire relief foam material according to claim 1, it is characterized in that: described char-forming agent is tetramethylolmethane.
5. a kind of halogen-free flame-retardant cable back-fire relief foam material according to claim 1 is characterized in that: it is one or more in the fillers such as potter's clay, china clay, kaolin, ammonium pentaborate, metaboric acid borax, anhydrous zinc borate, hydration zinc borate, aluminium hydroxide that described pottery changes into the shell agent.
6. a kind of halogen-free flame-retardant cable back-fire relief foam material according to claim 1, it is characterized in that: described whipping agent is one or more in trimeric cyanamide, Dyhard RU 100.
7. a kind of halogen-free flame-retardant cable back-fire relief foam material according to claim 1, it is characterized in that: described lubricant is dimethyl siloxane.
8. a kind of halogen-free flame-retardant cable according to claim 1 is with the preparation method of the back-fire relief foam material of the flame of anti-HCF, it is characterized in that: by formulation weight part batching, first silica gel is dropped in Banbury mixer, respectively other auxiliary agent is added again carry out mixing 5～10min after, being placed in two roller mills turns refining and descends sheet or slitting to get final product, or directly by after the two roller mill mixing 5～10min of normal temperature, lower or slitting.
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Cited By (7)
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| CN104479213A (en) * | 2014-12-22 | 2015-04-01 | 陶铠高分子材料（上海）科技中心 | Vertically self-extinguishing, low-smoke and flame-retardant ceramic polymer composition and application thereof |
| CN105632592A (en) * | 2016-03-30 | 2016-06-01 | 陶铠高分子材料（上海）科技中心 | Inorganic mineral substance ceramic fireproof, fire-resistant and oxygen-isolating filling mud composition |
| CN109749454A (en) * | 2019-02-22 | 2019-05-14 | 四川大学 | A kind of flexible preparation method of an ablation-resisting composite material of gas source fretting map carbon-coating |
| CN109796772A (en) * | 2019-02-22 | 2019-05-24 | 四川大学 | A kind of resistance to ablative composite material of flexibility of gas source fretting map carbon-coating |
| CN112210161A (en) * | 2020-10-28 | 2021-01-12 | 上海凯波电缆特材股份有限公司 | Halogen-free oxygen-barrier layer cable material and preparation method and application thereof |
| CN112280136A (en) * | 2020-10-26 | 2021-01-29 | 蔡晨灿 | Novel explosion-proof flame-retardant wrapping tape material for cables |
| WO2022073521A1 (en) * | 2020-10-10 | 2022-04-14 | 天津首瑞智能电气有限公司 | Cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104479213A (en) * | 2014-12-22 | 2015-04-01 | 陶铠高分子材料（上海）科技中心 | Vertically self-extinguishing, low-smoke and flame-retardant ceramic polymer composition and application thereof |
| CN105632592A (en) * | 2016-03-30 | 2016-06-01 | 陶铠高分子材料（上海）科技中心 | Inorganic mineral substance ceramic fireproof, fire-resistant and oxygen-isolating filling mud composition |
| CN109749454A (en) * | 2019-02-22 | 2019-05-14 | 四川大学 | A kind of flexible preparation method of an ablation-resisting composite material of gas source fretting map carbon-coating |
| CN109796772A (en) * | 2019-02-22 | 2019-05-24 | 四川大学 | A kind of resistance to ablative composite material of flexibility of gas source fretting map carbon-coating |
| CN109749454B (en) * | 2019-02-22 | 2022-07-05 | 四川大学 | Preparation method of flexible ablation-resistant composite material of air source micro-foaming carbon layer |
| CN109796772B (en) * | 2019-02-22 | 2022-07-05 | 四川大学 | Flexible ablation-resistant composite material of air source micro-foaming carbon layer |
| WO2022073521A1 (en) * | 2020-10-10 | 2022-04-14 | 天津首瑞智能电气有限公司 | Cable |
| CN112280136A (en) * | 2020-10-26 | 2021-01-29 | 蔡晨灿 | Novel explosion-proof flame-retardant wrapping tape material for cables |
| CN112210161A (en) * | 2020-10-28 | 2021-01-12 | 上海凯波电缆特材股份有限公司 | Halogen-free oxygen-barrier layer cable material and preparation method and application thereof |
| CN112210161B (en) * | 2020-10-28 | 2022-12-27 | 上海凯波电缆特材股份有限公司 | Halogen-free oxygen-barrier layer cable material and preparation method and application thereof |
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Application publication date: 20130508 |