CN103087369A - Low-smoke fire-retardant high-strength high-oil-resistance cable sheath material and preparation method thereof - Google Patents
Low-smoke fire-retardant high-strength high-oil-resistance cable sheath material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a low-smoke fire-retardant high-strength high-oil-resistance cable sheath material which comprises the following raw materials in parts by weight: 20-50 parts of an ethylene-vinyl acetate copolymer, 40-70 parts of acrylonitrile-butadiene rubber, 15-35 parts of a polyolefin grafted material, 20-50 parts of a reinforcing agent, 40-80 parts of a fire retardant, 0.5-4 parts of a smoke inhibiting agent, 1-4 parts of an age resistor, 2-6 parts of a crosslinking agent and 1-3 parts of a processing agent. Surface modified magnesium hydrate, surface processed hydrotalcite, ammonium polyphosphate, a molecular sieve, microencapsulated red phosphorus and the like are compounded for carrying out inflaming retarding, thus the consumption of a fire retardant is reduced; the fuming of the low-smoke fire-retardant high-strength and high-oil resistance cable sheath material is improved by using a molybdenum series compound as a smoke inhibiting agent; and the mechanical property and the oil resistance of the low-smoke fire-retardant high-strength and high-oil resistance cable sheath material are improved by using zinc methacrylate as an oil-resistant reinforcing agent. The low-smoke fire-retardant high-strength and high-oil resistance cable sheath material is prepared.
Description
Technical field
The present invention relates to a kind of for low-smoke and flame retardant oil resistant cable sheath material, particularly high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant and preparation method thereof.
Background technology
Ethylene-vinyl acetate copolymer (EVA) has mechanical property, ozone resistance and good processibility preferably, but its oil-proofness is relatively poor.Paracril (NBR) is as a kind of conventional rubber, has excellent oil-proofness, simultaneously there is polar group in the NBR molecule, can be well under the effect of compatilizer maleic anhydride stem grafting polyolefin and the EVA blend of polarity less, can be used as the CABLE MATERIALS sheath material.But under the abominable particular surroundingss such as operating environment of oil platform, also stricter to the requirement of CABLE MATERIALS sheath at sea, therefore to the intensity of material, oil-proofness has had further requirement.The limiting oxygen index(LOI) of EVA/NBR is very low simultaneously, and very easily burning, must carry out fire-retardant finish to it in application.Traditional halogen-free flame retardants metal hydroxide combustion inhibitor only just can play good flame retardant effect when addition is larger, but this can significantly affect the mechanical property of material.Simultaneously material in combustion processes the amount of being fuming more greatly be also a very important part, the cable sheath material of low-smoke non-halogen flame-retardant can reduce financial loss and loss of life and personal injury during presence of fire in actual applications greatly, is further therefore very important to smoke suppressing research of Flame-Retardant and Oil-Resistant material.
Chinese invention patent (CN 101508806A) has been introduced and has been prepared the cable material with halogen-free flameproof take metal hydroxides as main flame retardant, and this material has flame retardant resistance and oil-proofness preferably.But the addition of its fire retardant is very large, and the tensile strength of material and elongation at break are all not high before and after oil resistant simultaneously.The present invention selects the relatively less compositional flame-retardant system of the better addition of flame retardant effect to carry out modification to material, adding molybdenum is that smoke suppressant presses down the cigarette processing to material, by the less oil-resisting type strengthening agent reinforcement of addition, can prepare the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant.
Summary of the invention
The objective of the invention is to provide a kind of cable sheath material that has higher oil resistance and flame retarding and smoke suppressing properties concurrently and preparation method thereof.
In order to realize above purpose, technical scheme of the present invention is to provide high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant and preparation method thereof, and its component and mass parts are:
In described ethylene-vinyl acetate copolymer, the percentage composition of vinyl acetate is massfraction 20%-60%, can improve ozone resistance and the physical and mechanical properties of material.
Described paracril is that in paracril, acrylonitrile content is massfraction 41% ~ 48%.Can improve the oil-proofness of material.
Described Graft Polyolefin is maleic anhydride stem grafting polyolefin, can improve the cohesive action between body material and mineral filler.
Described strengthening agent is zinc methacrylate.The effect of strengthening agent is the intensity that improves material, improves the mechanical property of material.
Described fire retardant one or more composite the forming in the magnesium hydroxide of surface modification, surface-treated hydrotalcite, ammonium polyphosphate, molecular sieve, microcapsule red phosphorus of serving as reasons.
Described smoke suppressant is one or both composite the forming in ammonium molybdate and molybdic oxide.
Described anti-aging agent is that one or more in ketoamine class anti-aging agent, p phenylenediamine type antioxidant are composite.Anti-aging agent is mainly in order to delay or to suppress the ageing of rubber engineering, extending the work-ing life of goods.
Described linking agent be main linking agent organo-peroxide form or with the composite formation of additional crosslinker cyanacrylate.The effect of linking agent is to produce chemical bond between the molecule of line style, makes the thread-like molecule formation reticulated structure that interconnects, and improves the intensity of material with this.
Described processing aid is lubricant paraffin or calcium stearate.
Advantage of the present invention is that raw materials cost is low, has preferably flame retardant properties and a fire retardant addition used little, has the less amount of being fuming in fire-retardant, gives material fabulous oil resistance adding of oil-resisting type strengthening agent simultaneously.Make and have the high-strength high oil resistant cable sheath material of low-smoke and flame retardant.
Embodiment:
Embodiment 1:
30 parts of ethylene-vinyl acetate copolymers, 70 parts of paracril mass parts, 20 parts of maleic anhydride grafted ethene-acetate ethylene copolymers, 50 parts of the magnesium hydroxides after the fire retardant modification, 12 parts of modified hydrotalcites, 3 parts, molecular sieve, 2.0 parts of smoke suppressant ammonium molybdates, 40 parts of strengthening agent zinc methacrylates, anti-aging agent is prevented RD1.5 part, 1.5 parts of linking agent dicumyl peroxides, 1.2 parts of additional crosslinker cyanacrylates, 1.5 parts of processing aid calcium stearates.
First ethylene-vinyl acetate copolymer, calcium stearate, maleic anhydride grafted ethene-acetate ethylene copolymer are machined to the bag roller on twin-roll plastic mixing mill under 80 ℃, add successively again discharging after paracril, anti-RD, fire retardant, smoke suppressant, strengthening agent, linking agent melt blending 15min, with the material molded vulcanization 10min on the vulcanizing press of 160 ℃ that mixes, machine-shaping.
Embodiment 2:
40 parts of ethylene-vinyl acetate copolymers, 60 parts of paracril mass parts, 20 parts of maleic anhydride grafted ethene-acetate ethylene copolymers, 50 parts of the magnesium hydroxides after the fire retardant modification, 8 parts of modified hydrotalcites, 7 parts of microcapsule red phosphorus, 2.0 parts of smoke suppressant molybdic oxides, 20 parts of strengthening agent zinc methacrylates, anti-aging agent is prevented RD1.5 part, 1.5 parts of linking agent dicumyl peroxides, 1.2 parts of additional crosslinker cyanacrylates, 1.5 parts of processing aid calcium stearates.
First ethylene-vinyl acetate copolymer, calcium stearate, maleic anhydride grafted ethene-acetate ethylene copolymer are machined to the bag roller on twin-roll plastic mixing mill under 80 ℃, add successively again discharging after paracril, anti-RD, fire retardant, smoke suppressant, strengthening agent, linking agent melt blending 15min, with the material molded vulcanization 10min on the vulcanizing press of 160 ℃ that mixes, machine-shaping.
Embodiment 3:
30 parts of ethylene-vinyl acetate copolymers, 70 parts of paracril mass parts, 25 parts of maleic anhydride grafted ethene-acetate ethylene copolymers, 60 parts of the magnesium hydroxides after the fire retardant modification, 5 parts of microcapsule red phosphorus, 2.5 parts of smoke suppressant molybdic oxides, 25 parts of strengthening agent zinc methacrylates, anti-aging agent is prevented RD1.5 part, 1.5 parts of linking agent dicumyl peroxides, 1.2 parts of additional crosslinker cyanacrylates, 1.5 parts of processing aid calcium stearates.
First ethylene-vinyl acetate copolymer, calcium stearate, maleic anhydride grafted ethene-acetate ethylene copolymer are machined to the bag roller on twin-roll plastic mixing mill under 80 ℃, add successively again discharging after paracril, anti-RD, fire retardant, smoke suppressant, strengthening agent, linking agent melt blending 15min, with the material molded vulcanization 10min on the vulcanizing press of 160 ℃ that mixes, machine-shaping.
Embodiment 4:
40 parts of ethylene-vinyl acetate copolymers, 60 parts of paracril mass parts, 25 parts of maleic anhydride grafted ethene-acetate ethylene copolymers, 50 parts of the magnesium hydroxides after the fire retardant modification, 10 parts of tetramethylolmethanes, 5 parts, red phosphorus, 0.5 part of smoke suppressant ammonium molybdate, 1.5 parts of molybdic oxides, 25 parts of strengthening agent zinc methacrylates, anti-aging agent is prevented RD1.5 part, 1.5 parts of linking agent dicumyl peroxides, 1.2 parts of additional crosslinker cyanacrylates, 1.5 parts of processing aid calcium stearates.
First ethylene-vinyl acetate copolymer, calcium stearate, maleic anhydride grafted ethene-acetate ethylene copolymer are machined to the bag roller on twin-roll plastic mixing mill under 80 ℃, add successively again discharging after paracril, anti-RD, fire retardant, smoke suppressant, strengthening agent, linking agent melt blending 15min, with the material molded vulcanization 10min on the vulcanizing press of 160 ℃ that mixes, machine-shaping.
Embodiment 5:
40 parts of ethylene-vinyl acetate copolymers, 60 parts of paracril mass parts, 30 parts of maleic anhydride grafted ethene-acetate ethylene copolymers, 58 parts of the magnesium hydroxides after the fire retardant modification, 7 parts, red phosphorus, 0.4 part of smoke suppressant ammonium molybdate, 1.2 parts of molybdic oxides, 35 parts of strengthening agent zinc methacrylates, anti-aging agent is prevented RD1.5 part, 1.5 parts of linking agent dicumyl peroxides, 1.2 parts of additional crosslinker cyanacrylates, 1.5 parts of processing aid calcium stearates.
First ethylene-vinyl acetate copolymer, calcium stearate, maleic anhydride grafted ethene-acetate ethylene copolymer are machined to the bag roller on twin-roll plastic mixing mill under 80 ℃, add successively again discharging after paracril, anti-RD, fire retardant, smoke suppressant, strengthening agent, linking agent melt blending 15min, with the material molded vulcanization 10min on the vulcanizing press of 160 ℃ that mixes, machine-shaping.
The salient features of product sees the following form 1.
Table 1 material salient features:
As can be seen from Table 1, cable sheath material of the present invention has extremely low smoke density and good oil-proofness, after the mineral oil dipping of 75 ℃ * 48h, more than tensile strength still can reach 10MPa, and elongation at break can reach more than 300%, it has higher limiting oxygen index(LOI) simultaneously, can well needing be used for the occasion of Flame-Retardant and Oil-Resistant.
Claims (10)
1. the high-strength high oil resistant cable sheath material of low-smoke and flame retardant, is characterized in that, the component of this CABLE MATERIALS and mass parts thereof are:
2. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1, the percentage composition that it is characterized in that vinyl acetate in described ethylene-vinyl acetate copolymer is massfraction 20%-60%.
3. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1 is characterized in that described paracril is that the percentage composition of vinyl cyanide in paracril is massfraction 41% ~ 48%.
4. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1, is characterized in that described Graft Polyolefin is maleic anhydride stem grafting polyolefin.
5. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1, is characterized in that described strengthening agent is zinc methacrylate.
6. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1 is characterized in that described fire retardant is by one or more composite the forming in the magnesium hydroxide of surface modification, surface-treated hydrotalcite, ammonium polyphosphate, molecular sieve, microcapsule red phosphorus.
7. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1, is characterized in that described smoke suppressant is one or both composite the forming in ammonium molybdate, molybdic oxide.
8. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1 is characterized in that described anti-aging agent is that one or more in ketoamine class anti-aging agent, p phenylenediamine type antioxidant are composite.
9. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1, is characterized in that described linking agent is main linking agent organo-peroxide and the composite formation of additional crosslinker cyanacrylate.
10. the high-strength high oil resistant cable sheath material of a kind of low-smoke and flame retardant according to claim 1, is characterized in that described processing aid is lubricant paraffin or calcium stearate.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694549A (en) * | 2013-12-09 | 2014-04-02 | 无锡市明珠电缆有限公司 | Low-temperature-resistant oil-resistant halogen-free flame-retardant crosslinking cable sheath material and preparation method thereof |
| CN104017250A (en) * | 2014-05-07 | 2014-09-03 | 宁国市顺达密封件制造有限公司 | Anti-impact shock-reducing rubber |
| CN104098808A (en) * | 2014-07-03 | 2014-10-15 | 宁国市瑞普密封件有限公司 | Anti-fatigue rubber seal |
| CN104974412A (en) * | 2015-07-27 | 2015-10-14 | 上海至正道化高分子材料股份有限公司 | Vulcanized oil-resistant flame-retardant locomotive cable sheath material and preparation method thereof |
| CN105062227A (en) * | 2015-09-01 | 2015-11-18 | 绿园宝业（北京）贸易有限公司 | Organic anion intercalated hydrotalcite/regenerated polyethylene material special for pipeline corrosion prevention and preparation method thereof |
| CN105374450A (en) * | 2015-10-24 | 2016-03-02 | 长园集团股份有限公司 | Halogen-free flame-retardant 1E-class double-layer thermal shrinkable pipe for nuclear power station |
| CN105566885A (en) * | 2014-10-27 | 2016-05-11 | 深圳市欧龙优新材料科技有限公司 | Oil-resistant and high temperature-resistant irradiation crosslinking-free halogen-free flame-retardant wire and cable material |
| CN105602038A (en) * | 2015-12-31 | 2016-05-25 | 宁国市顺达密封件制造有限公司 | Anti-impact and shockproof rubber piece |
| CN108084520A (en) * | 2017-12-30 | 2018-05-29 | 漯河利通液压科技股份有限公司 | A kind of nitrile rubber without zinc and preparation method thereof |
| CN109517263A (en) * | 2018-12-19 | 2019-03-26 | 中广核拓普（四川）新材料有限公司 | A kind of low smoke density halogen-free flame-retardant composite material and preparation method thereof |
| CN110845797A (en) * | 2019-12-04 | 2020-02-28 | 佛山市顺德区远熠模塑电器有限公司 | Production process of high-temperature-resistant shell of intelligent dish-washing machine |
| CN114822947A (en) * | 2022-05-25 | 2022-07-29 | 广东远光电缆实业有限公司 | Thermoplastic elastomer energy new energy cable |
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| CN101508806A (en) * | 2009-03-13 | 2009-08-19 | 上海电缆研究所 | Grease-proof low-smoke halogen-free flame-proof cable material |
| CN102070821A (en) * | 2010-12-14 | 2011-05-25 | 江苏德威新材料股份有限公司 | Irradiation cross-linking oil resistance type soft low smoke zero halogen flame-retardant cable material |
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- 2013-01-30 CN CN2013100373661A patent/CN103087369A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101508806A (en) * | 2009-03-13 | 2009-08-19 | 上海电缆研究所 | Grease-proof low-smoke halogen-free flame-proof cable material |
| CN102070821A (en) * | 2010-12-14 | 2011-05-25 | 江苏德威新材料股份有限公司 | Irradiation cross-linking oil resistance type soft low smoke zero halogen flame-retardant cable material |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694549A (en) * | 2013-12-09 | 2014-04-02 | 无锡市明珠电缆有限公司 | Low-temperature-resistant oil-resistant halogen-free flame-retardant crosslinking cable sheath material and preparation method thereof |
| CN104017250A (en) * | 2014-05-07 | 2014-09-03 | 宁国市顺达密封件制造有限公司 | Anti-impact shock-reducing rubber |
| CN104098808A (en) * | 2014-07-03 | 2014-10-15 | 宁国市瑞普密封件有限公司 | Anti-fatigue rubber seal |
| CN105566885A (en) * | 2014-10-27 | 2016-05-11 | 深圳市欧龙优新材料科技有限公司 | Oil-resistant and high temperature-resistant irradiation crosslinking-free halogen-free flame-retardant wire and cable material |
| CN104974412A (en) * | 2015-07-27 | 2015-10-14 | 上海至正道化高分子材料股份有限公司 | Vulcanized oil-resistant flame-retardant locomotive cable sheath material and preparation method thereof |
| CN105062227A (en) * | 2015-09-01 | 2015-11-18 | 绿园宝业（北京）贸易有限公司 | Organic anion intercalated hydrotalcite/regenerated polyethylene material special for pipeline corrosion prevention and preparation method thereof |
| CN105374450A (en) * | 2015-10-24 | 2016-03-02 | 长园集团股份有限公司 | Halogen-free flame-retardant 1E-class double-layer thermal shrinkable pipe for nuclear power station |
| CN105602038A (en) * | 2015-12-31 | 2016-05-25 | 宁国市顺达密封件制造有限公司 | Anti-impact and shockproof rubber piece |
| CN108084520A (en) * | 2017-12-30 | 2018-05-29 | 漯河利通液压科技股份有限公司 | A kind of nitrile rubber without zinc and preparation method thereof |
| CN108084520B (en) * | 2017-12-30 | 2020-09-22 | 漯河利通液压科技股份有限公司 | Zinc-free nitrile rubber and preparation method thereof |
| CN109517263A (en) * | 2018-12-19 | 2019-03-26 | 中广核拓普（四川）新材料有限公司 | A kind of low smoke density halogen-free flame-retardant composite material and preparation method thereof |
| CN110845797A (en) * | 2019-12-04 | 2020-02-28 | 佛山市顺德区远熠模塑电器有限公司 | Production process of high-temperature-resistant shell of intelligent dish-washing machine |
| CN114822947A (en) * | 2022-05-25 | 2022-07-29 | 广东远光电缆实业有限公司 | Thermoplastic elastomer energy new energy cable |
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Application publication date: 20130508 |