CN102827426A - Low-cost insulating rubber for rubber insulated flexible wires and flexible cables - Google Patents
Low-cost insulating rubber for rubber insulated flexible wires and flexible cables Download PDFInfo
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- CN102827426A CN102827426A CN2011101614859A CN201110161485A CN102827426A CN 102827426 A CN102827426 A CN 102827426A CN 2011101614859 A CN2011101614859 A CN 2011101614859A CN 201110161485 A CN201110161485 A CN 201110161485A CN 102827426 A CN102827426 A CN 102827426A
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Abstract
The invention relates to a low-cost insulating rubber for rubber insulated flexible wires and flexible cables. The low-cost insulating rubber provided by the invention comprises the following ingredients of: by weight, 60-40 parts of terpolymer EP rubber, 40-60 parts of chlorinated polyethylene, 10-15 parts of an activator, 2-4 parts of a stabilizing agent, 2-4 parts of an antioxidant, 8-15 parts of a plasticizer, 10-20 parts of a strengthening agent, 115-135 parts of a filler, 1-3 parts of a lubrication aid, 1-3 parts of a release agent, and 10-15 parts of a composite vulcanizing agent, the rubber content of the insulating rubber is 33-37% and the rubber content is (the weight of terpolymer EP rubber + the weight of chlorinated polyethylene)/ gross weight * 100%. By the combined application of terpolymer EP rubber and chlorinated polyethylene, the rubber cost is reduced, and cost performance of IE4 insulating rubber is raised. The low-cost IE4 insulating rubber can satisfy performance requirements of standards of GB/T5013-2008 ''Rubber insulated cables with rated voltage of 450/750 V and below'' and JB8735-1998 ''Rubber insulated flexible wires and flexible cables with rated voltage of 450/750 V and below''.
Description
Technical field
The present invention relates to a kind of insulation rubber, particularly cabtire cord and flexible cable are used low-cost insulation rubber.
Background technology
New edition " voltage rating 450/750V and following India-rubber cable " GB/T5013-2008 has replaced old version GB/T5013-1997; In new edition GB/T5013-2008, cancelled " common rubber mixture insulating cable-IE1 type "; Increased " cable of ethylene-propylene rubber mixture or its suitable insulated with material-IE4 type "; Increased the ozone resistance test of IE4 type insulation rubber; Improved the thermal ageing temperature of IE4 type insulation rubber, brought up to 100 ℃ of 7 days thermal ageings of IE4 type from 80 ℃ of 7 days thermal ageings of IE1 type.
IE1 type insulation rubber mainly uses the tree elastomer of common rubber to be sizing material, tree elastomer have at normal temperatures higher elasticity, slightly be with plasticity, have good mechanical intensity, hysteresis loss little, give birth to when repeatedly being out of shape that heat is low, flexible resistance good; Because of being non-polar rubber, so electrical insulation capability is good; Again because of unsaturated double-bond is arranged; So tree elastomer is the stronger material of a kind of chemical reaction ability; Light, heat, ozone, radiation, subdue distortion and metals such as copper, manganese and can both promote the aging of rubber, not ageing-resistant is the deadly defect of tree elastomer, and its oil-proofness and solvent resistance are very poor.
IE4 type insulation rubber mainly uses terpolymer EP rubber or its suitable material to be sizing material, and the main chain of terpolymer EP rubber is fully saturated, and it has excellent anti-weather, anti-ozone, heat-resisting, acid and alkali-resistance, water-fast steam, colour stability.But the ethylene-propylene rubber(EPR) goods are life-time service under 120 ℃, under 150-200 ℃, can of short duration or intermittently use; Terpolymer EP rubber is non-polar in essence, and polar solvent and chemicals are had resistance, and water-intake rate is low, has excellent electrical insulation capability and corona resistance, and electrical property is superior to or approaches styrene-butadiene rubber(SBR), Vilaterm and crosslinked polyethylene.
Chlorinatedpolyethylene (CPE) is the macromolecular material that is made through the chlorination substitution reaction by high density polyethylene(HDPE) (HDPE); Be saturated macromolecular material; Have good weather resisteant, anti-ozone, chemical-resistant resistance and ageing-resistant performance; Have good oil-proofness, flame retardant resistance, tinctorial property and toughness, have good consistency with other macromolecular material, decomposition temperature is higher; In rubber industry, CPE can be used as high-performance, high-quality specialty elastomer, also can wait other blend rubber to use with ethylene-propylene rubber(EPR) (EPR), butyl rubber (IIR), paracril (NBR), chlorosuphonated-polyethylene (CSM); Rubber-type CPE is a kind of high comprehensive performance, heat-resisting oxygen ozone ageing, the good special synthetic rubber of flame retardant resistance.
Chinese patent ZL200610161495.1 discloses a kind of " ethylene-propylene rubber for electric wire and cable ", and formula of rubber wherein adopts pure ethylene-propylene rubber(EPR) as main sizing material, causes the material cost of ethylene-propylene rubber of this prescription very high.
Chinese patent 200910117115.8 discloses a kind of " oilproof cabtyre insulation material ", and terpolymer EP rubber, chlorinatedpolyethylene etc. are adopted in its composition of raw materials the inside.Insulation rubber does not generally have the oil resistance requirement, and EPDM is because of the molecular structure characteristics, does not have an oil resistance; CPE is because of the molecular structure characteristics, the tool oil resistance; When EPDM and CPE binary are shared, want to reach general oil resistance requirement, very responsive to the shared ratio of EPDM and CPE, EPDM can not surpass 25 parts, and CPE can not be less than 75 parts; And this invention prescription does not reach general oil resistance requirement.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art; Provide a kind of cabtire cord and flexible cable to use low-cost insulation rubber; This rubber can satisfy the performance requriements of GB/T5013-2008 " voltage rating 450/750V and following India-rubber cable ", JB8735-1998 " voltage rating 450/750V and following cabtire cord and flexible cable " standard fully, but the formula materials cost is lower.
The technical scheme that realizes the object of the invention is that a kind of cabtire cord and flexible cable are used low-cost insulation rubber, and the composition of said low-cost insulation rubber and proportioning are (in mass parts):
60～40 parts of terpolymer EP rubbers;
40～60 parts of chlorinatedpolyethylenees;
10～15 parts of promoting agents;
2～4 parts of stablizers;
2～4 parts in oxidation inhibitor;
8～15 parts in softening agent;
Strengthening agent 10-20 part;
115～135 parts of weighting agents;
1～3 part of lubricating auxiliary agent;
1～3 part of release agent;
10～15 parts of composite vulcanizing agents;
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, in the said terpolymer EP rubber ethylene content be 56%, ENB content be 11.5%, 100 ℃ down the mooney viscosity of test be 54; The cl content of chlorinatedpolyethylene is that 35 ± 1%, 125 ℃ of mooney viscosities of testing down are 45～65;
The gel content of above-mentioned insulation rubber, promptly (weight of the weight+chlorinatedpolyethylene of terpolymer EP rubber)/gross weight * 100% is 33～37%.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said promoting agent is a Natural manganese dioxide.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said stablizer is the calcium zinc stabilizer ST-18C that Linan matrix material ltd of glad section produces.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said oxidation inhibitor is four [methyl-β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber; Said softening agent is the mixture of 52 degree clorafins and o-phthalic acid dibutyl ester; In total component, 52 degree clorafins are that 4～7 mass parts, o-phthalic acid dibutyl ester are 4～8 mass parts.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said strengthening agent is a precipitated silica.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, the mixture of said weighting agent talcum powder and lime carbonate, and in total component, talcum powder is that 50～60 mass parts, lime carbonate are 65～75 mass parts.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said lubricating auxiliary agent is a microcrystalline wax.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said release agent is the release agent DC313 that Dongchang, Yixing chemical industry ltd produces.
Above-mentioned cabtire cord and flexible cable are used low-cost insulation rubber, and said composite vulcanizing agent is the vulcanizing agent NFCP-P that south, Yixing magnesium salts ltd produces.
After having adopted technique scheme, the present invention has following beneficial effect: when the insulation formula of rubber was done with terpolymer EP rubber monobasic sizing material in (1), its over-all properties was good, but higher because of its price, caused the formula materials cost high; When doing the insulation formula of rubber with chlorinatedpolyethylene monobasic sizing material, because of chloride atom, its insulation resistance is relatively poor, but its price is lower, makes the formula materials cost decline to a great extent; The present invention passes through terpolymer EP rubber and chlorinatedpolyethylene is shared and terpolymer EP rubber and chlorinatedpolyethylene performance and parameters of choice to adopting; Fully guaranteeing on the basis of insulation rubber each item performance, effectively reducing the material cost of insulation rubber prescription; (2) insulation rubber of the present invention can satisfy the performance requriements of GB/T5013-2008 " voltage rating 450/750V and following India-rubber cable ", JB8735-1998 " voltage rating 450/750V and following cabtire cord and flexible cable " standard.
Embodiment
(embodiment 1)
The cabtire cord of present embodiment and flexible cable are seen table one with composition, proportioning umber and the model of low-cost insulation rubber:
Table one
In the present embodiment:
The performance of mixed sheet:
Mooney viscosity M (1+4) is for 100 ℃: 62.0Mv
Maximum torque MH that sulphur becomes 170 ℃ of * 15min on the appearance is 3.60N.m
Technology time of scorch t10 that sulphur becomes 170 ℃ of * 15min on the appearance is 0.95min
Technology sulfurizing time t90 that sulphur becomes 170 ℃ of * 15min on the appearance is 8.60min
Volume specific resistance is in the time of 20 ℃: 5.1*1013 Ω .cm
Tensile strength is: 7.2N/mm
2
Elongation is: 430%
Proportion is: 1.58g/cm
3
Plasticate after weighing according to table one, after mixing, the slice, extrusion moulding, steam vulcanization finished product, its performance is seen table two:
Table two
(embodiment 2)
The cabtire cord of present embodiment and flexible cable are seen table three with composition, proportioning umber and the model of low-cost insulation rubber:
Table three
In the present embodiment:
The performance of mixed sheet:
Mooney viscosity M (1+4) is for 100 ℃: 60.0Mv
Maximum torque MH that sulphur becomes 170 ℃ of * 15min on the appearance is 3.2N.m
Technology time of scorch t10 that sulphur becomes 170 ℃ of * 15min on the appearance is 0.88min
Technology sulfurizing time t90 that sulphur becomes 170 ℃ of * 15min on the appearance is 8.25min
Volume specific resistance is in the time of 20 ℃: 1.5*10
14Ω .cm
Tensile strength is: 6.8N/mm
2
Elongation is: 450%
Proportion is: 1.56g/cm
3
Plasticate after weighing according to table three, after mixing, the slice, extrusion moulding, steam vulcanization finished product, its performance is seen table four:
Table four
(embodiment 3)
The cabtire cord of present embodiment and flexible cable are seen table five with composition, proportioning umber and the model of low-cost insulation rubber:
Table five
In the present embodiment:
The performance of mixed sheet:
Mooney viscosity M (1+4) is for 100 ℃: 64Mv
Maximum torque MH that sulphur becomes 170 ℃ of * 15min on the appearance is 3.7N.m
Technology time of scorch t10 that sulphur becomes 170 ℃ of * 15min on the appearance is 0.9min
Technology sulfurizing time t90 that sulphur becomes 170 ℃ of * 15min on the appearance is 9.0min
Volume specific resistance is in the time of 20 ℃: 1.2*10
13Ω .cm
Tensile strength is: 7.5N/mm
2
Elongation is: 410%
Proportion is: 1.60g/cm
3
Plasticate after weighing according to table five, after mixing, the slice, extrusion moulding, steam vulcanization finished product, its performance is seen table six:
Table six
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. cabtire cord and flexible cable are used low-cost insulation rubber, it is characterized in that: the composition of said low-cost insulation rubber and proportioning are (in mass parts):
60～40 parts of terpolymer EP rubbers;
40～60 parts of chlorinatedpolyethylenees;
10～15 parts of promoting agents;
2～4 parts of stablizers;
2～4 parts in oxidation inhibitor;
8～15 parts in softening agent;
Strengthening agent 10-20 part;
115～135 parts of weighting agents;
1～3 part of lubricating auxiliary agent;
1～3 part of release agent;
10～15 parts of composite vulcanizing agents;
Said terpolymer EP rubber ethylene content is 56%, ENB content be 11.5%, 100 ℃ down the mooney viscosity of test be 54; The cl content of chlorinatedpolyethylene is that 35 ± 1%, 125 ℃ of mooney viscosities of testing down are 45～65;
The gel content of above-mentioned insulation rubber, promptly (weight of the weight+chlorinatedpolyethylene of terpolymer EP rubber)/gross weight * 100% is 33～37%.
2. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said promoting agent is a Natural manganese dioxide.
3. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said stablizer is the calcium zinc stabilizer ST-18C that Linan matrix material ltd of glad section produces.
4. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said oxidation inhibitor is four [methyl-β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
5. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber; It is characterized in that: said softening agent is the mixture of 52 degree clorafins and o-phthalic acid dibutyl ester; In total component, 52 degree clorafins are that 4～7 mass parts, o-phthalic acid dibutyl ester are 4～8 mass parts.
6. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said strengthening agent is a precipitated silica.
7. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: the mixture of said weighting agent talcum powder and lime carbonate, in total component, talcum powder is that 50～60 mass parts, lime carbonate are 65～75 mass parts.
8. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said lubricating auxiliary agent is a microcrystalline wax.
9. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said release agent is the release agent DC313 that Dongchang, Yixing chemical industry ltd produces.
10. cabtire cord according to claim 1 and flexible cable are used low-cost insulation rubber, it is characterized in that: said composite vulcanizing agent is the vulcanizing agent NFCP-P that south, Yixing magnesium salts ltd produces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101614859A CN102827426A (en) | 2011-06-15 | 2011-06-15 | Low-cost insulating rubber for rubber insulated flexible wires and flexible cables |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101614859A CN102827426A (en) | 2011-06-15 | 2011-06-15 | Low-cost insulating rubber for rubber insulated flexible wires and flexible cables |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153554A (en) * | 2015-09-24 | 2015-12-16 | 扬州华声电子实业有限公司 | Electro-insulating rubber for oil resistant electric wire with high insulation resistance |
| CN106221109A (en) * | 2016-08-12 | 2016-12-14 | 广州市新稀冶金化工有限公司 | A kind of high fluidity elastomer and preparation method thereof |
| CN106867067A (en) * | 2017-02-14 | 2017-06-20 | 远东电缆有限公司 | A kind of submersible electric pump cable resistance to No. 20 machine oil insulation rubbers and preparation method |
| CN109134982A (en) * | 2018-10-29 | 2019-01-04 | 江苏宏鹏电气科技有限公司 | A kind of insulated hull preparation formula for cable |
| CN109824986A (en) * | 2019-01-07 | 2019-05-31 | 珠海格力电器股份有限公司 | Power line insulating layer with high water resistance and preparation method thereof |
| CN111269494A (en) * | 2020-03-25 | 2020-06-12 | 东莞长联电线电缆有限公司 | Deep-sea anticorrosive rubber cable and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290818A (en) * | 2008-06-24 | 2008-10-22 | 四川川东电缆有限责任公司 | Combination of chlorinated polythylene insulating material |
-
2011
- 2011-06-15 CN CN2011101614859A patent/CN102827426A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290818A (en) * | 2008-06-24 | 2008-10-22 | 四川川东电缆有限责任公司 | Combination of chlorinated polythylene insulating material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153554A (en) * | 2015-09-24 | 2015-12-16 | 扬州华声电子实业有限公司 | Electro-insulating rubber for oil resistant electric wire with high insulation resistance |
| CN106221109A (en) * | 2016-08-12 | 2016-12-14 | 广州市新稀冶金化工有限公司 | A kind of high fluidity elastomer and preparation method thereof |
| CN106867067A (en) * | 2017-02-14 | 2017-06-20 | 远东电缆有限公司 | A kind of submersible electric pump cable resistance to No. 20 machine oil insulation rubbers and preparation method |
| CN106867067B (en) * | 2017-02-14 | 2019-05-31 | 远东电缆有限公司 | A kind of submersible electric pump cable resistance to No. 20 machine oil insulation rubbers and preparation method |
| CN109134982A (en) * | 2018-10-29 | 2019-01-04 | 江苏宏鹏电气科技有限公司 | A kind of insulated hull preparation formula for cable |
| CN109824986A (en) * | 2019-01-07 | 2019-05-31 | 珠海格力电器股份有限公司 | Power line insulating layer with high water resistance and preparation method thereof |
| CN111269494A (en) * | 2020-03-25 | 2020-06-12 | 东莞长联电线电缆有限公司 | Deep-sea anticorrosive rubber cable and preparation method thereof |
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Inventor after: Tian Weisheng Inventor before: Tian Weisheng Inventor before: Xu Jing Inventor before: Liu Huajun |
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Application publication date: 20121219 |