CN102977605A - Silicon rubber cross-linked flame-retardant cable material and its preparation method - Google Patents
Silicon rubber cross-linked flame-retardant cable material and its preparation method Download PDFInfo
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Abstract
The invention provides a silicon rubber cross-linked flame-retardant cable material. The cable material is prepared from the following raw materials, by weight, 100 parts of silicon rubber, 20-30 parts of ethylene propylene diene monomer, 8-10 parts of chlorinated polyethylene, 15-20 parts of acetylene black, 0.5-1.0 part of dimethyl silicone oil, 0.2-0.5 parts of dicumyl peroxide (DCP), 20-30 parts of high-density polyethylene, 15-25 parts of calcium silicate, 0.5-1.0 part of modified argil, 30-40 parts of precipitated silica, 1-3 parts of a silane coupling agent, 0.2-0.5 parts of an antioxidant 4040, 0.5-1.5 parts of a promoter TMTD, 0.2-0.5 parts of a vulcanizing agent BP, 2-4 parts of tribasic lead sulfate, 12-15 parts of antimony (III) oxide, and 6-8 parts of zinc borate. The cable material has the advantages of excellent flame retardation, very less smoke in combustion, no generation of toxic gases or corrosive gases, good high and low temperature resistances, good corrosion resistance, good water resistance, good ozone resistance, and good ageing resistance.
Description
Technical field
The present invention relates to the CABLE MATERIALS field, be specifically related to a kind of silicone rubber crosslinking fire-resistant cable material and preparation method thereof.
Background technology
Fast development along with global economy, and the enhancing of human environmental consciousness, each field is more and more higher to the requirement of the quality and performance of electric wire, mouse, termite are one of three large main harm of harm plastic jacketed cable, optical cable, cause every year many accidents to occur, cause economically huge loss.
Electric wire grandmotherization and the fire that causes is also more and more, how to reduce the incidence of fire and presence of fire the time mortality ratio, low cigarette, Halogen, fire-retardant, developing direction that environmental protection also becomes wires and cables industry.Wherein the demand of halide-free low-smoke fireproof cable material is increasing, the at present production of halide-free low-smoke fireproof cable material is to add a large amount of Shawinigan black or Shawinigan blacks to reach flame retardant effect in polyolefin substrate mostly, yet, the adding of a large amount of inorganic materials, affected physical and mechanical properties and the process industrial art performance of CABLE MATERIALS, poor, oil-proofness of softness, weathering resistance, resistance to low temperature are not fine at normal temperatures for they.
Summary of the invention
The invention provides a kind of silicone rubber crosslinking fire-resistant cable material and preparation method thereof.It is good that the cable that is processed into by CABLE MATERIALS of the present invention has a high and low temperature resistance, corrosion resistance and good, and water tolerance, anti-ozone, ageing-resistant, flame retardant properties is good.
The technical solution used in the present invention is:
A kind of silicone rubber crosslinking fire-resistant cable material is characterized in that: the raw material by following weight part is made: 100 parts in silicon rubber, terpolymer EP rubber 20-30 part, chlorinatedpolyethylene 8-10 part, Shawinigan black 15-20 part, dimethyl silicone oil 4-6 part, dicumyl peroxide DCP 0.2-0.5 part, high density polyethylene(HDPE) 20-30 part, Calucium Silicate powder 15-25 part, modification potter's clay 0.5-1.0 part, precipitated silica 30-40 part, silane coupling agent KH560 1-3 part, anti-aging agent 4040 0.2-0.5 parts, Vulcanization accelerator TMTD 0.5-1.5 part, vulcanizing agent BP 0.2-0.5 part, tribasic lead sulfate 2-4 part, antimonous oxide 12-15 part, zinc borate 6-8 part.
Described modification potter's clay prepares by the following method:
(1), potter's clay is with 10-15% salt acid soak 3-4 hour, deionized water wash, again with 10-12% hydrogen peroxide leaching solution bubble 3-4 hour, again with deionized water wash to neutral, oven dry;
(2), will be dissolved in potter's clay is added to the water, add again sodium laurylsulfate, the zinc oxide of 1-2%, the diatomite of 2-3%, the 3-5% aluminium hydroxide that is equivalent to potter's clay weight 2-3%, high speed 1200-1500 rev/min of stirring obtains dispersion liquid, and the dispersion liquid ovendry power is broken into ultrafine powder.
Described silicone rubber crosslinking fire-resistant cable material is characterized in that: the raw material by following weight part is made: the raw material by following weight part is made: 100 parts in silicon rubber, 25 parts of terpolymer EP rubbers, 9 parts of chlorinatedpolyethylenees, 18 parts of Shawinigan blacks, 6 parts of dimethyl silicone oils, 0.4 part of dicumyl peroxide DCP, 25 parts of high density polyethylene(HDPE)s, 20 parts of Calucium Silicate powder, 0.6 part in modification potter's clay, 35 parts of precipitated silicas, 2 parts of silane coupling agent KH560, anti-aging agent 4040 0.2-0.5 parts, 0.8 part of Vulcanization accelerator TMTD, 0.3 part of vulcanizing agent BP, 3 parts of tribasic lead sulfates, 14 parts of antimonous oxides, 7 parts of zinc borates.
The preparation method of described silicone rubber crosslinking fire-resistant cable material is characterized in that:
(1) presses formula rate silicon rubber, terpolymer EP rubber, chlorinatedpolyethylene, high density polyethylene(HDPE) and anti-aging agent class are dropped into mill, descended mixing 4-5 minute at 75-85 ℃;
(2) fillers such as modification potter's clay, Calucium Silicate powder, semi-reinforcing furnace black N765 are joined in the rubber unvulcanizate of step (1), after continuing mixing 2-3 minute, remaining material except vulcanizing agent, promotor is joined in the mixing materials, after mixing 4-6 minute, add again vulcanizing agent, promotor, after thin-pass 6-7 time, the extruder plastication granulation, get final product, the extrusion temperature of extruding machine is 125-175 ℃.
Beneficial effect
CABLE MATERIALS of the present invention not only has excellent flame retardancy and flame-retarding power not; The amount of being fuming is considerably less during burning, does not produce toxic gas, does not produce corrosive gases, and it is good to have simultaneously a high and low temperature resistance, corrosion resistance and good, water tolerance, anti-ozone, ageing-resistant, flame retardant resistance, good insulation preformance.
Embodiment
The silicone rubber crosslinking fire-resistant cable material is made by the raw material of following weight part: 100 parts in silicon rubber, 25 parts of terpolymer EP rubbers, 9 parts of chlorinatedpolyethylenees, 18 parts of Shawinigan blacks, 5 parts of dimethyl silicone oils, 0.4 part of dicumyl peroxide DCP, 25 parts of high density polyethylene(HDPE)s, 20 parts of Calucium Silicate powder, 0.6 part in modification potter's clay, 35 parts of precipitated silicas, 2 parts of silane coupling agent KH560, anti-aging agent 4040 0.2-0.5 parts, 0.8 part of Vulcanization accelerator TMTD, 0.3 part of vulcanizing agent BP, 3 parts of tribasic lead sulfates, 14 parts of antimonous oxides, 7 parts of zinc borates.
Described modification potter's clay prepares by the following method:
(1), potter's clay is with 10-15% salt acid soak 3-4 hour, deionized water wash, again with 10-12% hydrogen peroxide leaching solution bubble 3-4 hour, again with deionized water wash to neutral, oven dry;
(2), will be dissolved in potter's clay is added to the water, add again sodium laurylsulfate, the zinc oxide of 1-2%, the diatomite of 2-3%, the 3-5% aluminium hydroxide that is equivalent to potter's clay weight 2-3%, high speed 1200-1500 rev/min of stirring obtains dispersion liquid, and the dispersion liquid ovendry power is broken into ultrafine powder.
The preparation method:
(1) presses formula rate silicon rubber, terpolymer EP rubber, chlorinatedpolyethylene, high density polyethylene(HDPE) and anti-aging agent class are dropped into mill, descended mixing 4-5 minute at 75-85 ℃;
(2) fillers such as modification potter's clay, Calucium Silicate powder, semi-reinforcing furnace black N765 are joined in the rubber unvulcanizate of step (1), after continuing mixing 2-3 minute, remaining material except vulcanizing agent, promotor is joined in the mixing materials, after mixing 4-6 minute, add again vulcanizing agent, promotor, after thin-pass 6-7 time, the extruder plastication granulation, get final product, the extrusion temperature of extruding machine is 125-175 ℃.
The performance test results of CABLE MATERIALS of the present invention is as follows:
Tensile strength 18.8MPa; Elongation 680%; Volume specific resistance 3.9 * 10
15Ω cm; Dielectric strength 23.8V/m; Oxygen index 45%; Maximum smoke density 290Dm..Can be under-30 ℃-150 ℃ high low temperature life-time service.
Claims (3)
1. silicone rubber crosslinking fire-resistant cable material, it is characterized in that: the raw material by following weight part is made: 100 parts in silicon rubber, terpolymer EP rubber 20-30 part, chlorinatedpolyethylene 8-10 part, Shawinigan black 15-20 part, dimethyl silicone oil 4-6 part, dicumyl peroxide DCP 0.2-0.5 part, high density polyethylene(HDPE) 20-30 part, Calucium Silicate powder 15-25 part, modification potter's clay 0.5-1.0 part, precipitated silica 30-40 part, silane coupling agent KH560 1-3 part, anti-aging agent 4040 0.2-0.5 parts, Vulcanization accelerator TMTD 0.5-1.5 part, vulcanizing agent BP 0.2-0.5 part, tribasic lead sulfate 2-4 part, antimonous oxide 12-15 part, zinc borate 6-8 part;
Described modification potter's clay prepares by the following method:
(1), potter's clay is with 10-15% salt acid soak 3-4 hour, deionized water wash, again with 10-12% hydrogen peroxide leaching solution bubble 3-4 hour, again with deionized water wash to neutral, oven dry;
(2), will be dissolved in potter's clay is added to the water, add again sodium laurylsulfate, the zinc oxide of 1-2%, the diatomite of 2-3%, the 3-5% aluminium hydroxide that is equivalent to potter's clay weight 2-3%, high speed 1200-1500 rev/min of stirring obtains dispersion liquid, and the dispersion liquid ovendry power is broken into ultrafine powder.
2. silicone rubber crosslinking fire-resistant cable material according to claim 1, it is characterized in that: the raw material by following weight part is made: the raw material by following weight part is made: 100 parts in silicon rubber, 25 parts of terpolymer EP rubbers, 9 parts of chlorinatedpolyethylenees, 18 parts of Shawinigan blacks, 5 parts of dimethyl silicone oils, 0.4 part of dicumyl peroxide DCP, 25 parts of high density polyethylene(HDPE)s, 20 parts of Calucium Silicate powder, 0.6 part in modification potter's clay, 35 parts of precipitated silicas, 2 parts of silane coupling agent KH560, anti-aging agent 4040 0.2-0.5 parts, Vulcanization accelerator TMTD 0.5-1.5 part, vulcanizing agent BP 0.2-0.5 part, tribasic lead sulfate 2-4 part, antimonous oxide 12-15 part, zinc borate 6-8 part.
3. the preparation method of a silicone rubber crosslinking fire-resistant cable material as claimed in claim 1 or 2 is characterized in that:
(1) presses formula rate silicon rubber, terpolymer EP rubber, chlorinatedpolyethylene, high density polyethylene(HDPE) and anti-aging agent class are dropped into mill, descended mixing 4-5 minute at 75-85 ℃;
(2) fillers such as modification potter's clay, Calucium Silicate powder, semi-reinforcing furnace black N765 are joined in the rubber unvulcanizate of step (1), after continuing mixing 2-3 minute, remaining material except vulcanizing agent, promotor is joined in the mixing materials, after mixing 4-6 minute, add again vulcanizing agent, promotor, after thin-pass 6-7 time, the extruder plastication granulation, get final product, the extrusion temperature of extruding machine is 125-175 ℃.
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| CN103304903A (en) * | 2013-05-14 | 2013-09-18 | 安徽旺达铜业发展有限公司 | Cable sheath material comprising modified aluminum hydroxide |
| CN103304908A (en) * | 2013-05-16 | 2013-09-18 | 安徽华源电缆集团有限公司 | Chlorinated polyethylene cable material containing modified silicon rubber |
| CN103333418A (en) * | 2013-06-04 | 2013-10-02 | 安徽荣玖光纤通信科技有限公司 | Cold resistant cable sheath material |
| CN103351510A (en) * | 2013-06-19 | 2013-10-16 | 安徽电缆股份有限公司 | Colorful antioxidant polyethylene cable and preparation method thereof |
| CN103360692A (en) * | 2013-06-04 | 2013-10-23 | 安徽荣玖光纤通信科技有限公司 | Ozone-resistant polyethylene cable sheath material |
| CN103408948A (en) * | 2013-08-09 | 2013-11-27 | 浙江合盛硅业有限公司 | Rubber composition and application thereof |
| CN103421326A (en) * | 2013-08-30 | 2013-12-04 | 安徽金科橡塑制品有限公司 | Cold-resistant rubber and preparation method thereof |
| CN103642248A (en) * | 2013-11-29 | 2014-03-19 | 山东永泰化工有限公司 | Oil-resistant silicon rubber composition |
| CN103725010A (en) * | 2013-11-29 | 2014-04-16 | 山东永泰化工有限公司 | Fire-proof conductive silicone rubber composition |
| CN103985439A (en) * | 2014-04-11 | 2014-08-13 | 安徽省赛华电缆有限公司 | Control cable suitable for being laid |
| CN103985447A (en) * | 2014-04-11 | 2014-08-13 | 安徽省赛华电缆有限公司 | Mining cable of flat structure |
| CN104194165A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德集团股份有限公司 | Low-voltage power cable rubber material |
| CN104952538A (en) * | 2015-05-20 | 2015-09-30 | 龚灿锋 | Anticorrosion and acid-base resistant cable for electric power facilities |
| CN105131599A (en) * | 2015-08-17 | 2015-12-09 | 合肥市再德高分子材料有限公司 | Building power cable rubber material, and preparation method thereof |
| CN106243733A (en) * | 2016-09-21 | 2016-12-21 | 苏州直角新材料有限公司 | A kind of high-temperature resistant nano silicone rubber and preparation method thereof |
| CN106349705A (en) * | 2016-08-30 | 2017-01-25 | 安徽蓝德集团股份有限公司 | Sheathing material of resistant high temperature high flame retardant silicone rubber cable |
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