CN104327337B - Cable sheath rubber and preparation method thereof - Google Patents
Cable sheath rubber and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of cable sheath rubber, belong to cable production art。By neoprene, vulcanizing agent, vulcanizing agent auxiliary agent, lead sulfate tribasic, plasticizer one, plasticizer two, white carbon black, white carbon, reinforcing agent, antimony oxide, Firebrake ZB, stearic acid, 2,2-dithio-bis-benzothiazole, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer, N, N-nickel dibutyl dithiocarbamate and antifungus agent are made by certain mass proportioning。Wherein neoprene preferably middle Mooney type, the preferred extra light calcined magnesia of vulcanizing agent, vulcanizing agent auxiliary agent preferred tetra-sulfurized pair pentamethylene thiuram, the preferred microwax of plasticizer one, the preferred di-n-octyl sebacate of plasticizer two, the preferred kieselguhr of reinforcing agent, the preferred o-phenyl phenol of antifungus agent。It can meet some flexible shroud cable requirements to high flexibility, high abrasion, also has the performance of high anti-tear, low temperature resistant, mildew-resistant。The preparation method that the invention also discloses above-mentioned cable sheath rubber。
Description
Technical field
The present invention relates to a kind of cable sheath rubber and preparation method thereof, belong to cable production art。
Background technology
Under wet heat condition, rubber product easily grows various mycete, due to the growth of mycete with spread, makes the inner molecular structure product of rubber destroy, and physical property receives impact, and serious even forfeiture uses function。The safe operation of cable there is serious threat。
On November 18th, 2009, Chinese invention patent application CN101580606A discloses a kind of cable jacket rubber and preparation method, and this cable rubber base material is mixed with 50-70WT% cis-butadiene cement by 30-50WT% natural gum and forms;In rubber chemicals, vulcanizing system is: low sulfur height accelerator vulcanizing system, sulfur addition is the 0.3-0.6WT% of rubber base material, accelerant disulfide tetra methylthiuram 1.0～1.3WT%, accelerant N-cyclohexyl-2-[4-morpholinodithio sulfenamide 1.8～2.2WT%, accelerant disulfide Dibenzo thiazole 0.6～0.9WT%。This rubber meets the general performance of cable jacket, but does not effectively solve the mycete impact on rubber product under wet heat condition。
Summary of the invention
The technical problem to be solved is in that to overcome prior art defect, it is provided that a kind of high flexibility, high abrasion, high anti-tear, low temperature resistant, fungus-resistant cable jacket rubber and preparation method。
In order to solve above-mentioned technical problem, cable sheath rubber provided by the invention is by the composition of following mass parts: neoprene 35 ~ 100 parts, vulcanizing agent 10 ~ 15 parts, vulcanizing agent auxiliary agent 0.5 ~ 1 part, lead sulfate tribasic 3 ~ 5 parts, plasticizer one 4 ~ 6 parts, plasticizer 2 10 ~ 20 parts, white carbon black 25 ~ 35 parts, white carbon 10 ~ 20 parts, reinforcing agent 10 ~ 20 parts, antimony oxide 5 ~ 10 parts, Firebrake ZB 10 ~ 20 parts, stearic acid 2 ~ 4 parts, 2, 2'-dithio-bis-benzothiazole 0.5 ~ 1 part, 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer 1 ~ 2 part, N, N-nickel dibutyl dithiocarbamate 1 ~ 2 part and antifungus agent 3 ~ 5 parts。
The formula of preferably selecting of cable sheath rubber of the present invention is:
Neoprene 35 ~ 45 parts, vulcanizing agent 4 ~ 6 parts, vulcanization aid 0.2 ~ 0.4 part, lead sulfate tribasic 1.2 ~ 2.0 parts, plasticizer one 1.6 ~ 2.4 parts, plasticizer 24 ~ 8 parts, white carbon black 10 ~ 14 parts, white carbon 4 ~ 8 parts, reinforcing agent 4 ~ 8 parts, antimony oxide 2 ~ 4 parts, Firebrake ZB 4 ~ 8 parts, stearic acid 0.8 ~ 1.6 part, 2,2'-dithio-bis-benzothiazole 0.2 ~ 0.4 part, 2,2,4 trimethyls-1,2-dihyaroquinoline polymer 0.4 ~ 0.8 part, N, N-nickel dibutyl dithiocarbamate 0.4 ~ 0.8 part and antifungus agent 1.2 ~ 2.0 parts。
The preferred chlorinty 40% of neoprene in above-mentioned formula, optimum selection is the middle Mooney type of chlorine dose 40%；The preferred tetra-sulfurized pair pentamethylene thiuram of the preferred extra light calcined magnesia of vulcanizing agent, vulcanizing agent auxiliary agent；The preferred microwax of plasticizer one, the preferred di-n-octyl sebacate of plasticizer two；The preferred kieselguhr of reinforcing agent；The preferred o-phenyl phenol of antifungus agent。
Components description
Neoprene has good mechanical performance, acid-proof alkaline, oil resistance, and processing characteristics is excellent, is apply wide material in rubber jacketed flexible cable shield at present。GB/T5013-2008 and JB/T8735-2011 specifies, oversheath rubber should meet SE4 type requirement in GB/T5013.1-2008 and JB/T8735.1-2011, therefore when formula designs, each system material is selected as follows by we under the premise considering mechanical performance, resistance to low temperature and fungicidal properties:
1, the selection of rubber: in the neoprene for electric wire and cable jacket material, is most commonly used that the type that chlorinity is 40%, and the neoprene of this type has good mechanical performance, processing characteristics and resistance to low temperature。And the neoprene that chlorinity is 40% is divided into low Mooney, medium Mooney and high Mooney three class of waiting, for making sizing material have very good flexibility and processing characteristics, still select in the neoprene Hypalon40 of Mooney type。
2, the selection of vulcanizing system: the most frequently used vulcanizing system of neoprene is Metal-oxide vulcanization system, in metal oxide vulcanization agent, adopt the most frequently used zinc oxide, magnesium oxide, lead oxides, zinc oxide causes that quickening is aging owing to can accelerate to produce hydrogen chloride in neoprene, therefore should not adopt in Chloroprene rubber formula, lead oxides contaminative is relatively big, has certain toxicity, also should not adopt from environmental angle, therefore selection magnesium oxide。Owing to neoprene is higher to magnesian Active pharmaceutical, therefore selecting extra light calcined magnesia as vulcanizing agent, colleague selects tetra-sulfurized pair pentamethylene thiuram as vulcanization aid。
3, the selection of antifungus agent: in numerous antifungus agents, o-phenyl phenol effect is obvious, and polymer performance impact is less, and toxic is relatively low, is very suitable for in rubber mildew-resistant system。
4, the selection of plasticizer: in plasticizer, olefin material uses very general, and the present invention selects microcrystalline wax, and microcrystalline wax easily disperses, and processability is good, moreover it is possible to make sheath sizing material have certain ozone resistance。When selecting operation oil, the performance that there are resistance to-35 DEG C of low temperature because considering acid and alkali-resistance sheath to need, therefore adopt low temperature resistant plasticizer di-n-octyl sebacate。
The preparation method that present invention also offers above-mentioned cable sheath rubber, comprises the following steps:
1) dispensing: weigh neoprene, vulcanizing agent, vulcanizing agent auxiliary agent, lead sulfate tribasic, plasticizer one, plasticizer two, white carbon black, white carbon, reinforcing agent, antimony oxide, Firebrake ZB, stearic acid, 2,2'-dithio-bis-benzothiazole, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer, N, N-nickel dibutyl dithiocarbamate and antifungus agent, standby。
2) once mixing: neoprene, white carbon black, white carbon, reinforcing agent, antimony oxide, Firebrake ZB, stearic acid, antifungus agent and plasticizer two are put in banbury, putting down floating weight, banburying temperature controls at 110 ~ 130 DEG C, banburying 2 ~ 4 minutes, then floating weight is mentioned, again put down floating weight, banburying 1 ~ 3 minute after 10 ~ 20 seconds, mention floating weight, open Turnover bunker, compound is routed up, proceeds to the thin logical clot of mill, at room temperature park cooling 6 ~ 10 hours。
3) secondary is mixing: by step 2) gained once mixing thing, lead sulfate tribasic, plasticizer one, 2,2'-dithio-bis-benzothiazole, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer, N, N-nickel dibutyl dithiocarbamate put in banbury, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 40 ~ 50 seconds, mentions floating weight, places into vulcanizing agent, vulcanization aid, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 30 ~ 40 seconds, opens Turnover bunker, compound is routed up, proceeds to the thin logical clot of mill。
4) page slice is rolled over: the film broken into by Bao Tonghou puts into three rollers and rolles over page machine rolling page, cutting, and six chilling rolls are opened cold foot but water, by the film after cutting once through six chilling rolls, it is then passed through insulating powder groove, making width is 20 ~ 30mm, and thickness is the film of 0.4 ~ 0.6mm。
Detailed description of the invention
Below in conjunction with embodiment, the preparation method of the present invention is described further。
[embodiment one]
1) weigh each dispensing: neoprene 35 kilograms, extra light calcined magnesia 10 kilograms, lead sulfate tribasic 3 kilograms, microwax 4 kilograms, white carbon black 25 kilograms, white carbon 10 kilograms, reinforcing agent 10 kilograms, antimony oxide 5 kilograms, Firebrake ZB 10 kilograms, stearic acid 2 kilograms, 2,2'-dithio-bis-benzothiazole 0.5 kilogram, tetra-sulfurized pair pentamethylene thiuram 0.5 kilogram, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer 1 kilogram, N, N-nickel dibutyl dithiocarbamate 1 kilogram, di-n-octyl sebacate 10 kilograms and antifungus agent 3 kilograms, standby。
2) once mixing: by neoprene 35 kilograms, white carbon black 25 kilograms, white carbon 10 kilograms, reinforcing agent 10 kilograms, antimony oxide 5 kilograms, Firebrake ZB 10 kilograms, stearic acid 2 kilograms, antifungus agent 3 kilograms and 10 kilograms of input banburies of di-n-octyl sebacate, put down floating weight, banburying temperature controls at 110 ~ 130 DEG C, banburying 2 ~ 4 minutes, then floating weight is mentioned, floating weight is again put down after 10 ~ 20 seconds, banburying 1 ~ 3 minute, mention floating weight, open Turnover bunker, compound is routed up, proceeds to the thin logical clot of mill, at room temperature park cooling 6 ~ 10 hours。
3) secondary is mixing: by step 2) gained once mixing thing, lead sulfate tribasic 3 kilograms, microwax 4 kilograms, 2, 2'-dithio-bis-benzothiazole 0.5 kilogram, 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer 1 kilogram, N, in 1 kilogram of input banbury of N-nickel dibutyl dithiocarbamate, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 40 ~ 50 seconds, mention floating weight, place into extra light calcined magnesia, tetra-sulfurized pair pentamethylene thiuram, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 30 ~ 40 seconds, open Turnover bunker, compound is routed up, proceed to the thin logical clot of mill。
4) page slice is rolled over: the film broken into by Bao Tonghou puts into three rollers and rolles over page machine, and six chilling rolls are opened cold foot but water, by the film after cutting once through six chilling rolls, it is then passed through insulating powder groove, making width is 20 ~ 30mm, and thickness is the film of 0.4 ~ 0.6mm。
[embodiment two]
1) weigh each dispensing: neoprene double centner, extra light calcined magnesia 15 kilograms, lead sulfate tribasic 5 kilograms, microwax 6 kilograms, white carbon black 35 kilograms, white carbon 20 kilograms, reinforcing agent 20 kilograms, antimony oxide 10 kilograms, Firebrake ZB 20 kilograms, stearic acid 4 kilograms, 2,2'-dithio-bis-benzothiazole 1 kilogram, tetra-sulfurized pair pentamethylene thiuram 1 kilogram, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer 2 kilograms, N, N-nickel dibutyl dithiocarbamate 2 kilograms, di-n-octyl sebacate 20 kilograms and antifungus agent 5 kilograms, standby。
2) once mixing: by neoprene double centner, white carbon black 35 kilograms, white carbon 20 kilograms, reinforcing agent 20 kilograms, antimony oxide 10 kilograms, Firebrake ZB 20 kilograms, stearic acid 4 kilograms, in antifungus agent 5 kilograms and 20 kilograms of input banburies of di-n-octyl sebacate, put down floating weight, banburying temperature controls at 110 ~ 130 DEG C, banburying 2 ~ 4 minutes, then floating weight is mentioned, floating weight is again put down after 10 ~ 20 seconds, banburying 1 ~ 3 minute, mention floating weight, open Turnover bunker, compound is routed up, proceed to the thin logical clot of mill, at room temperature park cooling 6 ~ 10 hours。
3) secondary is mixing: by step 2) gained once mixing thing, lead sulfate tribasic 5 kilograms, microwax 6 kilograms, 2, 2'-dithio-bis-benzothiazole 1 kilogram, 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer 2 kilograms, N, in 2 kilograms of input banburies of N-nickel dibutyl dithiocarbamate, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 40 ~ 50 seconds, mention floating weight, place into extra light calcined magnesia, tetra-sulfurized pair pentamethylene thiuram, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 30 ~ 40 seconds, open Turnover bunker, compound is routed up, proceed to the thin logical clot of mill。
4) page slice is rolled over: the film broken into by Bao Tonghou puts into three rollers and rolles over page machine, and six chilling rolls are opened cold foot but water, by the film after cutting once through six chilling rolls, it is then passed through insulating powder groove, making width is 20 ~ 30mm, and thickness is the film of 0.4 ~ 0.6mm。
[embodiment three]
1) weigh each dispensing: neoprene 35 kilograms, extra light calcined magnesia 4 kilograms, lead sulfate tribasic 1.2 kilograms, microwax 1.6 kilograms, white carbon black 10 kilograms, white carbon 4 kilograms, reinforcing agent 4 kilograms, antimony oxide 2 kilograms, Firebrake ZB 4 kilograms, stearic acid 0.8 kilogram, 2,2'-dithio-bis-benzothiazole 0.2 kilogram, tetra-sulfurized pair pentamethylene thiuram 0.2 kilogram, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer 0.4 kilogram, N, N-nickel dibutyl dithiocarbamate 0.4 kilogram, di-n-octyl sebacate 4 kilograms and antifungus agent 1.2 kilograms。
2) once mixing: by neoprene 35 kilograms, white carbon black 10 kilograms, white carbon 4 kilograms, reinforcing agent 4 kilograms, antimony oxide 2 kilograms, Firebrake ZB 4 kilograms, stearic acid 0.8 kilogram, antifungus agent 1.2 kilograms and 4 kilograms of input banburies of di-n-octyl sebacate, put down floating weight, banburying temperature controls at 110 ~ 130 DEG C, banburying 2 ~ 4 minutes, then floating weight is mentioned, floating weight is again put down after 10 ~ 20 seconds, banburying 1 ~ 3 minute, mention floating weight, open Turnover bunker, compound is routed up, proceeds to the thin logical clot of mill, at room temperature park cooling 6 ~ 10 hours。
3) secondary is mixing: by step 2) gained once mixing thing, lead sulfate tribasic 1.2 kilograms, microwax 1.6 kilograms, 2, 2'-dithio-bis-benzothiazole 0.2 kilogram, 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer 0.4 kilogram, N, in 0.4 kilogram of input banbury of N-nickel dibutyl dithiocarbamate, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 40 ~ 50 seconds, mention floating weight, place into extra light calcined magnesia, tetra-sulfurized pair pentamethylene thiuram, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 30 ~ 40 seconds, open Turnover bunker, compound is routed up, proceed to the thin logical clot of mill。
4) film that Bao Tonghou breaks into putting into three rollers and rolles over page machine, and six chilling rolls are opened cold foot but water, by the film after cutting once through six chilling rolls, be then passed through insulating powder groove, making width is 20 ~ 30mm, and thickness is the film of 0.4 ~ 0.6mm。
[embodiment four]
1) weigh each dispensing: neoprene 45 kilograms, extra light calcined magnesia 6 kilograms, lead sulfate tribasic 2 kilograms, microwax 2.4 kilograms, white carbon black 14 kilograms, white carbon 8 kilograms, reinforcing agent 8 kilograms, antimony oxide 4 kilograms, Firebrake ZB 8 kilograms, stearic acid 1.6 kilograms, 2,2'-dithio-bis-benzothiazole 0.4 kilogram, tetra-sulfurized pair pentamethylene thiuram 0.4 kilogram, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer 0.8 kilogram, N, N-nickel dibutyl dithiocarbamate 0.8 kilogram, di-n-octyl sebacate 8 kilograms and antifungus agent 2 kilograms, standby。
2) once mixing: by neoprene 45 kilograms, white carbon black 14 kilograms, white carbon 8 kilograms, reinforcing agent 8 kilograms, antimony oxide 4 kilograms, Firebrake ZB 8 kilograms, stearic acid 1.6 kilograms, antifungus agent 2 kilograms and 8 kilograms of input banburies of di-n-octyl sebacate, put down floating weight, banburying temperature controls at 110 ~ 130 DEG C, banburying 2 ~ 4 minutes, then floating weight is mentioned, floating weight is again put down after 10 ~ 20 seconds, banburying 1 ~ 3 minute, mention floating weight, open Turnover bunker, compound is routed up, proceeds to the thin logical clot of mill, at room temperature park cooling 6 ~ 10 hours。
3) secondary is mixing: by step 2) gained once mixing thing, lead sulfate tribasic 2 kilograms, microwax 2.4 kilograms, 2, 2'-dithio-bis-benzothiazole 0.4 kilogram, 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer 0.8 kilogram, N, in 0.8 kilogram of input banbury of N-nickel dibutyl dithiocarbamate, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 40 ~ 50 seconds, mention floating weight, place into extra light calcined magnesia, tetra-sulfurized pair pentamethylene thiuram, put down floating weight, banburying temperature controls at 90 ~ 110 DEG C, banburying 30 ~ 40 seconds, open Turnover bunker, compound is routed up, proceed to the thin logical clot of mill。
4) page slice is rolled over: the film broken into by Bao Tonghou puts into three rollers and rolles over page machine, and six chilling rolls are opened cold foot but water, by the film after cutting once through six chilling rolls, it is then passed through insulating powder groove, making width is 20 ~ 30mm, and thickness is the film of 0.4 ~ 0.6mm。
The present invention is further illustrated below by test。Cable sheath rubber of the present invention is made by embodiment three, and matched group selects model specification to be CEFR0.6/1kV1 × 6mm2Finished cable rubber。Result of the test is in Table 1
Table 1, cable cover(ing) of the present invention and the comparison of finished product cable result of the test
Show from above-mentioned test data, cable sheath rubber of the present invention, can fully meet the needs of fungus-resistant cable, also there is high flexibility, high abrasion, low temperature resistant feature。Extremely meet the development trend of special cable。
Claims (4)
1. the preparation method of a cable sheath rubber, this cable sheath rubber is made up of the material of following quality proportioning: neoprene 35 ~ 100 parts, extra light calcined magnesia 10 ~ 15 parts, tetra-sulfurized pair pentamethylene thiuram 0.5 ~ 1 part, lead sulfate tribasic 3 ~ 5 parts, plasticizer one 4 ~ 6 parts, plasticizer 2 10 ~ 20 parts, white carbon black 25 ~ 35 parts, white carbon 10 ~ 20 parts, 10 ~ 20 parts of kieselguhr, antimony oxide 5 ~ 10 parts, Firebrake ZB 10 ~ 20 parts, stearic acid 2 ~ 4 parts, 2, 2'-dithio-bis-benzothiazole 0.5 ~ 1 part, 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer 1 ~ 2 part, N, N-nickel dibutyl dithiocarbamate 1 ~ 2 part and antifungus agent 3 ~ 5 parts；Described plasticizer one is microwax, plasticizer two is di-n-octyl sebacate；
Its preparation process is:
1) weigh neoprene, extra light calcined magnesia, tetra-sulfurized pair pentamethylene thiuram, lead sulfate tribasic, plasticizer one, plasticizer two, white carbon black, white carbon, kieselguhr, antimony oxide, Firebrake ZB, stearic acid, 2,2'-dithio-bis-benzothiazole, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer, N, N-nickel dibutyl dithiocarbamate and antifungus agent, standby；
2) once mixing: to put in banbury by neoprene, white carbon black, white carbon, kieselguhr, antimony oxide, Firebrake ZB, stearic acid, antifungus agent and plasticizer two, banburying temperature controls at 110 ~ 130 DEG C, banburying 2 ~ 4 minutes；Banburying 1 ~ 3 minute again after 10 ~ 20 seconds；Compound is proceeded to the thin logical clot of mill, at room temperature cools down 6 ~ 10 hours；
3) secondary is mixing: by step 2) gained once mixing thing, lead sulfate tribasic, plasticizer one, 2,2'-dithio-bis-benzothiazole, 2,2,4-trimethyl-1,2-dihyaroquinoline polymer, N, N-nickel dibutyl dithiocarbamate puts in banbury, and banburying temperature controls at 90 ~ 110 DEG C, banburying 40 ~ 50 seconds；Putting into extra light calcined magnesia, tetra-sulfurized pair pentamethylene thiuram, banburying temperature controls at 90 ~ 110 DEG C, banburying 30 ~ 40 seconds；Compound is proceeded to the thin logical clot of mill；
4) page slice is rolled over: step 3) gained film is put into three rollers and rolles over page machine rolling page, cutting, the film after cutting is sequentially passed through chilling roll, insulating powder groove, makes film。
2. the preparation method of cable sheath rubber according to claim 1, it is characterised in that: neoprene is middle Mooney type。
3. the preparation method of cable sheath rubber according to claim 1 and 2, it is characterised in that: antifungus agent is o-phenyl phenol。
4. the preparation method of cable sheath rubber according to claim 1 or claim 2, it is characterised in that: the width of gained film is 20 ~ 30mm, and thickness is 0.4 ~ 0.6mm。
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| CN105295136B (en) * | 2015-11-03 | 2017-05-24 | 无锡宝通科技股份有限公司 | Super-cutting-resistant rubber material for sieve plate of vibrating screen and preparation method thereof |
| CN105623028A (en) * | 2016-03-29 | 2016-06-01 | 无锡智谷锐拓技术服务有限公司 | Mildew-proof rubber |
| CN106188713A (en) * | 2016-08-03 | 2016-12-07 | 苏州市相城区正旭电线电缆有限公司 | A kind of modified model neoprene cable protective cover material and preparation method thereof |
| CN107778592A (en) * | 2016-08-26 | 2018-03-09 | 特变电工股份有限公司 | Cryogenic vulcanization neoprene cable protective cover material and preparation method thereof, cable cover(ing) |
| CN109473231B (en) * | 2018-08-23 | 2020-06-09 | 张勇 | Production process method of explosion-proof special cable product |
| CN109135296A (en) * | 2018-08-31 | 2019-01-04 | 安庆市泽烨新材料技术推广服务有限公司 | Cable cracking resistance silicone rubber jacket material and preparation method thereof |
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| CN102637474A (en) * | 2012-05-04 | 2012-08-15 | 无锡市恒汇电缆有限公司 | Rat-proof ant-proof high-strength rubber compound cable and manufacturing method thereof |
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