CN105504540A - Ethylene propylene diene monomer outer sheath for self-limiting electric tracing band - Google Patents
Ethylene propylene diene monomer outer sheath for self-limiting electric tracing band Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses an ethylene propylene diene monomer outer sheath for a self-limiting electric tracing band. The ethylene propylene diene monomer outer sheath is made of the following raw materials in parts by weight: 40-70 parts of ethylene propylene diene monomer, 16-28 parts of methyl phenyl vinyl silicone rubber, 15-32 parts of chloroprene rubber, 1-2.5 parts of sulfur, 4-4.5 parts of 2,5-dimethyl-2,5-di(butylperoxy)hexyne-3-hexine, 0.5-1.8 parts of isocyanuric acid triallyl ester, 0.5-1.5 parts of sodium bichromate, 60-85 parts of modified glass fiber, 10-20 parts of graphite powder, 5-15 parts of high abrasion furnace black, 10-20 parts of talc powder, 5-15 parts of kaolin, 10-20 parts of nanometer aluminum oxide, 1-2.5 parts of antioxidant AT-215, 1-3 parts of sodium lignin sulfonate, 1.2-1.8 parts of di-iso-decylphthalate, 1.2-1.8 parts of polyvinyl butyral, 1.2-1.8 parts of disproportionated rosin and 1.2-1.8 parts of zinc stearate. The ethylene propylene diene monomer outer sheath has high thermal conductivity, high hardness and superior abrasion resistance.
Description
Technical field
The present invention relates to field of rubber technology, particularly relate to a kind of self-limited type electric-heating belt terpolymer EP rubber oversheath.
Background technology
Electric-heating belt, since last century, the seventies entered Application Areas, has become electric-heating belt type the most general in the world today, and it is widely used in heating highway, ramp, crossing, eaves and floor etc.Self-limited type electric-heating belt is inner, and be dispersed with the PTC macromolecular material of heat effect between two conductive core, its outside is made up of polymer sheath, metallic shield net and polymer oversheath.In domestic at present for the outer polymer oversheath of temperature selflimiting electric tracing band owing to still can not meet demand by environment for use restriction, especially cold environment in the winter time, the thermal conduction of current temperature selflimiting electric tracing band oversheath, hardness and wear resistance also can not meet demand.
Summary of the invention
The present invention proposes a kind of self-limited type electric-heating belt terpolymer EP rubber oversheath, good thermal conduction, hardness is high, and wear resisting property is excellent.
A kind of self-limited type electric-heating belt terpolymer EP rubber oversheath that the present invention proposes, its raw material comprises by weight: terpolymer EP rubber 40 ~ 70 parts, methyl phenyl vinyl silicone rubber 16 ~ 28 parts, chloroprene rubber 15 ~ 32 parts, 1 ~ 2.5 part, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4 ~ 4.5 parts, triallyl isocyanurate 0.5 ~ 1.8 part, sodium dichromate 99 0.5 ~ 1.5 part, modified glass-fiber 60 ~ 85 parts, Graphite Powder 99 10 ~ 20 parts, high wear-resistant carbon black 5 ~ 15 parts, talcum powder 10 ~ 20 parts, kaolin 5 ~ 15 parts, nano aluminium oxide 10 ~ 20 parts, oxidation inhibitor AT-2151 ~ 2.5 part, sodium lignosulfonate 1 ~ 3 part, Di Iso Decyl Phthalate 1.2 ~ 1.8 parts, polyvinyl butyral acetal 1.2 ~ 1.8 parts, nilox resin 1.2 ~ 1.8 parts, Zinic stearas 1.2 ~ 1.8 parts.
Preferably, modified glass-fiber adopts following technique to prepare: under nitrogen protection, after Silane coupling agent KH550, deionized water, glass fibre mixing, stirs, filters, washing, dry and obtain the first prefabricated material, by sodium borohydride solution, Silver Nitrate, trisodium citrate, deionized water and stirring evenly, leave standstill and obtain the second prefabricated material, nylon 6 is added in the first prefabricated material, PVP, cetyl trimethylammonium bromide, xitix, deionized water mixes, add the second prefabricated material to mix, then adding salpeter solution regulation system pH value is 5.8 ~ 6.4, Silver Nitrate is added under whipped state, add completely and continue to stir, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 240 ~ 250 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 220 ~ 230 DEG C, pelletizing, oven dry obtains modified glass-fiber.
Preferably, in the preparation technology of modified glass-fiber, the weight ratio of Silane coupling agent KH550, glass fibre, nylon 6, PVP, cetyl trimethylammonium bromide is 2 ~ 10:15 ~ 24:30 ~ 50:0.5 ~ 2.5:2 ~ 3.5.
Preferably, in the preparation technology of modified glass-fiber, the weight ratio of Silane coupling agent KH550, xitix, trisodium citrate is 2 ~ 10:5 ~ 15:10 ~ 20.
Preferably, modified glass-fiber adopts following technique to prepare: under nitrogen protection, by weight by 2 ~ 10 parts of Silane coupling agent KH550s, 40 ~ 80 parts of deionized waters, 15 ~ 24 parts of glass fibre mixing, 15 ~ 35min is stirred with the speed of 250 ~ 280r/min, whipping temp is 75 ~ 84 DEG C, filter, washing, dry and obtain the first prefabricated material, be the sodium borohydride solution of 1 ~ 3.5mmol/L by 5 ~ 15 parts of concentration, 15 ~ 24 parts of Silver Nitrates, 10 ~ 20 parts of trisodium citrates, 80 ~ 140 parts of deionized waters carry out stirring 8 ~ 16min, stirring velocity 260 ~ 280r/min, leaves standstill 7 ~ 10h and obtains the second prefabricated material, 30 ~ 50 parts of nylon 6 are added in the first prefabricated material, 0.5 ~ 2.5 part of PVP, 2 ~ 3.5 parts of cetyl trimethylammonium bromides, 5 ~ 15 parts of xitix, 60 ~ 150 parts of deionized waters mix, add the second prefabricated material to mix, then to add massfraction be the salpeter solution regulation system pH value of 2.5 ~ 4.5wt% is 5.8 ~ 6.4, 10 ~ 20 parts of Silver Nitrates are added under whipped state, add completely and continue stirring 15 ~ 32min, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 210 ~ 230 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 225 ~ 240 DEG C, pelletizing, oven dry obtains modified glass-fiber.
Preferably, the weight ratio of terpolymer EP rubber, methyl phenyl vinyl silicone rubber, chloroprene rubber is 50 ~ 58:22 ~ 25:20 ~ 26.
Preferably, the weight ratio of modified glass-fiber, Graphite Powder 99, high wear-resistant carbon black, talcum powder, kaolin, nano aluminium oxide is 70 ~ 76:14 ~ 16:8 ~ 12:14 ~ 16:10 ~ 13:14 ~ 16.
Preferably, the weight ratio of Di Iso Decyl Phthalate, polyvinyl butyral acetal, nilox resin, Zinic stearas is 1.4 ~ 1.6:1.5 ~ 1.6:1.4 ~ 1.6:1.5 ~ 1.7.
Preferably, described self-limited type electric-heating belt terpolymer EP rubber oversheath, its raw material comprises by weight: terpolymer EP rubber 50 ~ 58 parts, methyl phenyl vinyl silicone rubber 22 ~ 25 parts, chloroprene rubber 20 ~ 26 parts, 2 ~ 2.4 parts, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4.1 ~ 4.3 parts, triallyl isocyanurate 1.2 ~ 1.4 parts, sodium dichromate 99 1 ~ 1.3 part, modified glass-fiber 70 ~ 76 parts, Graphite Powder 99 14 ~ 16 parts, high wear-resistant carbon black 8 ~ 12 parts, talcum powder 14 ~ 16 parts, kaolin 10 ~ 13 parts, nano aluminium oxide 14 ~ 16 parts, oxidation inhibitor AT-2151.6 ~ 2 part, sodium lignosulfonate 2 ~ 2.6 parts, Di Iso Decyl Phthalate 1.4 ~ 1.6 parts, polyvinyl butyral acetal 1.5 ~ 1.6 parts, nilox resin 1.4 ~ 1.6 parts, Zinic stearas 1.5 ~ 1.7 parts.
The present invention acts synergistically with terpolymer EP rubber, methyl phenyl vinyl silicone rubber, chloroprene rubber, adopt sulphur, 2,5-dimethyl-2,5-bis-(t-butylperoxy)-3-hexin, triallyl isocyanurate, sodium dichromate 99 carry out collaborative sulfuration, make hardness of the present invention high, wear resistance is fabulous, and the modified glass-fiber added, high wear-resistant carbon black, talcum powder, kaolin, nano aluminium oxide synergy, can effectively strengthen mechanics of the present invention and heat conductivility.In the preparation technology of modified glass-fiber, Silane coupling agent KH550 one end is oxyethyl group, silanol is formed after hydrolysis, organically combine with the hydroxyl of fiberglass surfacing, and the amino of the other end can react with the carboxyl on nylon 6, thus glass fibre and nylon 6 are combined closely, make the hardness of gained modified glass-fiber high, wear resistance is fabulous, fiberglass surfacing is surface irregularity after treatment, surface leaves cavity, and utilize the macromolecular chain steric hindrance of PVP and the electrostatic repulsion of cetyl trimethylammonium bromide, the minimum particle diameter material obtained with the second prefabricated material effect, can be embedded in cavity, density of the present invention is increased, extreme hardness, wear resistance strengthens further, the simultaneously amino of Silane coupling agent KH550 and xitix, Silver Nitrate reacts, bonding force is extremely strong, make gained modified glass-fiber smooth surface, and between unclassified stores, compatibility is fabulous in raw material, wherein sodium lignosulfonate and unreacted Silane coupling agent KH550 can by terpolymer EP rubbers, methyl phenyl vinyl silicone rubber, chloroprene rubber and Graphite Powder 99, high wear-resistant carbon black, talcum powder, kaolin, nano aluminium oxide organically combines, make thermostability of the present invention, thermal conductivity is very excellent, and hardness and wear resistance is fabulous, further with Di Iso Decyl Phthalate, polyvinyl butyral acetal, nilox resin, Zinic stearas, oxidation inhibitor AT-215 acts synergistically, can ensure under the prerequisite that hardness is high, make the present invention's not frangibility, long service life.
Embodiment
Embodiment 1
A kind of self-limited type electric-heating belt terpolymer EP rubber oversheath, its raw material comprises by weight: terpolymer EP rubber 40 parts, methyl phenyl vinyl silicone rubber 28 parts, chloroprene rubber 15 parts, 2.5 parts, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4 parts, triallyl isocyanurate 1.8 parts, sodium dichromate 99 0.5 part, modified glass-fiber 85 parts, Graphite Powder 99 10 parts, high wear-resistant carbon black 15 parts, talcum powder 10 parts, kaolin 15 parts, nano aluminium oxide 10 parts, oxidation inhibitor AT-2152.5 part, sodium lignosulfonate 1 part, Di Iso Decyl Phthalate 1.8 parts, polyvinyl butyral acetal 1.2 parts, nilox resin 1.8 parts, Zinic stearas 1.2 parts.
Embodiment 2
A kind of self-limited type electric-heating belt terpolymer EP rubber oversheath, its raw material comprises by weight: terpolymer EP rubber 70 parts, methyl phenyl vinyl silicone rubber 16 parts, chloroprene rubber 32 parts, 1 part, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4.5 parts, triallyl isocyanurate 0.5 part, sodium dichromate 99 1.5 parts, modified glass-fiber 60 parts, Graphite Powder 99 20 parts, high wear-resistant carbon black 5 parts, talcum powder 20 parts, kaolin 5 parts, nano aluminium oxide 20 parts, oxidation inhibitor AT-2151 part, sodium lignosulfonate 3 parts, Di Iso Decyl Phthalate 1.2 parts, polyvinyl butyral acetal 1.8 parts, nilox resin 1.2 parts, Zinic stearas 1.8 parts.
Embodiment 3
A kind of self-limited type electric-heating belt terpolymer EP rubber oversheath, its raw material comprises by weight: terpolymer EP rubber 58 parts, methyl phenyl vinyl silicone rubber 22 parts, chloroprene rubber 26 parts, 2 parts, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4.3 parts, triallyl isocyanurate 1.2 parts, sodium dichromate 99 1.3 parts, modified glass-fiber 70 parts, Graphite Powder 99 16 parts, high wear-resistant carbon black 8 parts, talcum powder 16 parts, kaolin 10 parts, nano aluminium oxide 16 parts, oxidation inhibitor AT-2151.6 part, sodium lignosulfonate 2.6 parts, Di Iso Decyl Phthalate 1.4 parts, polyvinyl butyral acetal 1.6 parts, nilox resin 1.4 parts, Zinic stearas 1.7 parts.
Modified glass-fiber adopts following technique to prepare: under nitrogen protection, by weight by 2 parts of Silane coupling agent KH550s, 80 parts of deionized waters, 15 parts of glass fibre mixing, stirs 15min with the speed of 280r/min, whipping temp is 84 DEG C, filter, washing, dry and obtain the first prefabricated material, be the sodium borohydride solution of 3.5mmol/L by 5 parts of concentration, 15 parts of Silver Nitrates, 20 parts of trisodium citrates, 80 parts of deionized waters carry out stirring 16min, stirring velocity 260r/min, standing 10h obtains the second prefabricated material, 30 parts of nylon 6 are added in the first prefabricated material, 2.5 parts of PVPs, 2 parts of cetyl trimethylammonium bromides, 15 parts of xitix, 60 parts of deionized waters mix, add the second prefabricated material to mix, then to add massfraction be the salpeter solution regulation system pH value of 4.5wt% is 5.8, 20 parts of Silver Nitrates are added under whipped state, add completely and continue to stir 15min, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 230 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 225 DEG C, pelletizing, oven dry obtains modified glass-fiber.
Embodiment 4
A kind of self-limited type electric-heating belt terpolymer EP rubber oversheath, its raw material comprises by weight: terpolymer EP rubber 50 parts, methyl phenyl vinyl silicone rubber 25 parts, chloroprene rubber 20 parts, 2.4 parts, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4.1 parts, triallyl isocyanurate 1.4 parts, sodium dichromate 99 1 part, modified glass-fiber 76 parts, Graphite Powder 99 14 parts, high wear-resistant carbon black 12 parts, talcum powder 14 parts, kaolin 13 parts, nano aluminium oxide 14 parts, oxidation inhibitor AT-2152 part, sodium lignosulfonate 2 parts, Di Iso Decyl Phthalate 1.6 parts, polyvinyl butyral acetal 1.5 parts, nilox resin 1.6 parts, Zinic stearas 1.5 parts.
Modified glass-fiber adopts following technique to prepare: under nitrogen protection, by weight by 10 parts of Silane coupling agent KH550s, 40 parts of deionized waters, 24 parts of glass fibre mixing, stirs 35min with the speed of 250r/min, whipping temp is 75 DEG C, filter, washing, dry and obtain the first prefabricated material, be the sodium borohydride solution of 1mmol/L by 15 parts of concentration, 24 parts of Silver Nitrates, 10 parts of trisodium citrates, 140 parts of deionized waters carry out stirring 8min, stirring velocity 280r/min, standing 7h obtains the second prefabricated material, 50 parts of nylon 6 are added in the first prefabricated material, 0.5 part of PVP, 3.5 parts of cetyl trimethylammonium bromides, 5 parts of xitix, 150 parts of deionized waters mix, add the second prefabricated material to mix, then to add massfraction be the salpeter solution regulation system pH value of 2.5wt% is 6.4, 10 parts of Silver Nitrates are added under whipped state, add completely and continue to stir 32min, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 210 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 240 DEG C, pelletizing, oven dry obtains modified glass-fiber.
Embodiment 5
A kind of self-limited type electric-heating belt terpolymer EP rubber oversheath, its raw material comprises by weight: terpolymer EP rubber 54 parts, methyl phenyl vinyl silicone rubber 24 parts, chloroprene rubber 23 parts, 2.2 parts, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4.2 parts, triallyl isocyanurate 1.3 parts, sodium dichromate 99 1.2 parts, modified glass-fiber 73 parts, Graphite Powder 99 15 parts, high wear-resistant carbon black 10 parts, talcum powder 15 parts, kaolin 11.5 parts, nano aluminium oxide 15 parts, oxidation inhibitor AT-2151.8 part, sodium lignosulfonate 2.3 parts, Di Iso Decyl Phthalate 1.52 parts, polyvinyl butyral acetal 1.55 parts, nilox resin 1.5 parts, Zinic stearas 1.6 parts.
Modified glass-fiber adopts following technique to prepare: under nitrogen protection, by weight by 8 parts of Silane coupling agent KH550s, 75 parts of deionized waters, 21 parts of glass fibre mixing, stirs 26min with the speed of 260r/min, whipping temp is 78 DEG C, filter, washing, dry and obtain the first prefabricated material, be the sodium borohydride solution of 2.5mmol/L by 12 parts of concentration, 21 parts of Silver Nitrates, 16 parts of trisodium citrates, 120 parts of deionized waters carry out stirring 12min, stirring velocity 275r/min, standing 8h obtains the second prefabricated material, 42 parts of nylon 6 are added in the first prefabricated material, 1.6 parts of PVPs, 2.8 parts of cetyl trimethylammonium bromides, 12 parts of xitix, 120 parts of deionized waters mix, add the second prefabricated material to mix, then to add massfraction be the salpeter solution regulation system pH value of 4.1wt% is 6.2, 15 parts of Silver Nitrates are added under whipped state, add completely and continue to stir 30min, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 215 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 230 DEG C, pelletizing, oven dry obtains modified glass-fiber.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. a self-limited type electric-heating belt terpolymer EP rubber oversheath, it is characterized in that, its raw material comprises by weight: terpolymer EP rubber 40 ~ 70 parts, methyl phenyl vinyl silicone rubber 16 ~ 28 parts, chloroprene rubber 15 ~ 32 parts, 1 ~ 2.5 part, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4 ~ 4.5 parts, triallyl isocyanurate 0.5 ~ 1.8 part, sodium dichromate 99 0.5 ~ 1.5 part, modified glass-fiber 60 ~ 85 parts, Graphite Powder 99 10 ~ 20 parts, high wear-resistant carbon black 5 ~ 15 parts, talcum powder 10 ~ 20 parts, kaolin 5 ~ 15 parts, nano aluminium oxide 10 ~ 20 parts, oxidation inhibitor AT-2151 ~ 2.5 part, sodium lignosulfonate 1 ~ 3 part, Di Iso Decyl Phthalate 1.2 ~ 1.8 parts, polyvinyl butyral acetal 1.2 ~ 1.8 parts, nilox resin 1.2 ~ 1.8 parts, Zinic stearas 1.2 ~ 1.8 parts.
2. self-limited type electric-heating belt terpolymer EP rubber oversheath according to claim 1, it is characterized in that, modified glass-fiber adopts following technique to prepare: under nitrogen protection, after Silane coupling agent KH550, deionized water, glass fibre mixing, stir, filter, washing, dry and obtain the first prefabricated material, by sodium borohydride solution, Silver Nitrate, trisodium citrate, deionized water and stirring evenly, leave standstill and obtain the second prefabricated material, nylon 6 is added in the first prefabricated material, PVP, cetyl trimethylammonium bromide, xitix, deionized water mixes, add the second prefabricated material to mix, then adding salpeter solution regulation system pH value is 5.8 ~ 6.4, Silver Nitrate is added under whipped state, add completely and continue to stir, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 240 ~ 250 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 220 ~ 230 DEG C, pelletizing, oven dry obtains modified glass-fiber.
3. self-limited type electric-heating belt terpolymer EP rubber oversheath according to claim 2, it is characterized in that, in the preparation technology of modified glass-fiber, the weight ratio of Silane coupling agent KH550, glass fibre, nylon 6, PVP, cetyl trimethylammonium bromide is 2 ~ 10:15 ~ 24:30 ~ 50:0.5 ~ 2.5:2 ~ 3.5.
4. self-limited type electric-heating belt terpolymer EP rubber oversheath according to claim 2, it is characterized in that, in the preparation technology of modified glass-fiber, the weight ratio of Silane coupling agent KH550, xitix, trisodium citrate is 2 ~ 10:5 ~ 15:10 ~ 20.
5. the self-limited type electric-heating belt terpolymer EP rubber oversheath according to any one of claim 1-4, it is characterized in that, modified glass-fiber adopts following technique to prepare: under nitrogen protection, by weight by 2 ~ 10 parts of Silane coupling agent KH550s, 40 ~ 80 parts of deionized waters, 15 ~ 24 parts of glass fibre mixing, stir 15 ~ 35min with the speed of 250 ~ 280r/min, whipping temp is 75 ~ 84 DEG C, filters, washing, dries and obtains the first prefabricated material, be the sodium borohydride solution of 1 ~ 3.5mmol/L by 5 ~ 15 parts of concentration, 15 ~ 24 parts of Silver Nitrates, 10 ~ 20 parts of trisodium citrates, 80 ~ 140 parts of deionized waters carry out stirring 8 ~ 16min, stirring velocity 260 ~ 280r/min, leaves standstill 7 ~ 10h and obtains the second prefabricated material, 30 ~ 50 parts of nylon 6 are added in the first prefabricated material, 0.5 ~ 2.5 part of PVP, 2 ~ 3.5 parts of cetyl trimethylammonium bromides, 5 ~ 15 parts of xitix, 60 ~ 150 parts of deionized waters mix, add the second prefabricated material to mix, then to add massfraction be the salpeter solution regulation system pH value of 2.5 ~ 4.5wt% is 5.8 ~ 6.4, 10 ~ 20 parts of Silver Nitrates are added under whipped state, add completely and continue stirring 15 ~ 32min, centrifugation, washing, dry, send in forcing machine and once extrude, extrusion temperature is 210 ~ 230 DEG C, pelletizing, dry, then send into secondary in forcing machine to extrude, extrusion temperature is 225 ~ 240 DEG C, pelletizing, oven dry obtains modified glass-fiber.
6. the self-limited type electric-heating belt terpolymer EP rubber oversheath according to any one of claim 1-5, is characterized in that, the weight ratio of terpolymer EP rubber, methyl phenyl vinyl silicone rubber, chloroprene rubber is 50 ~ 58:22 ~ 25:20 ~ 26.
7. the self-limited type electric-heating belt terpolymer EP rubber oversheath according to any one of claim 1-6, it is characterized in that, the weight ratio of modified glass-fiber, Graphite Powder 99, high wear-resistant carbon black, talcum powder, kaolin, nano aluminium oxide is 70 ~ 76:14 ~ 16:8 ~ 12:14 ~ 16:10 ~ 13:14 ~ 16.
8. the self-limited type electric-heating belt terpolymer EP rubber oversheath according to any one of claim 1-7, it is characterized in that, the weight ratio of Di Iso Decyl Phthalate, polyvinyl butyral acetal, nilox resin, Zinic stearas is 1.4 ~ 1.6:1.5 ~ 1.6:1.4 ~ 1.6:1.5 ~ 1.7.
9. the self-limited type electric-heating belt terpolymer EP rubber oversheath according to any one of claim 1-8, it is characterized in that, its raw material comprises by weight: terpolymer EP rubber 50 ~ 58 parts, methyl phenyl vinyl silicone rubber 22 ~ 25 parts, chloroprene rubber 20 ~ 26 parts, 2 ~ 2.4 parts, sulphur, 2, 5-dimethyl-2, 5-bis-(t-butylperoxy)-3-hexin 4.1 ~ 4.3 parts, triallyl isocyanurate 1.2 ~ 1.4 parts, sodium dichromate 99 1 ~ 1.3 part, modified glass-fiber 70 ~ 76 parts, Graphite Powder 99 14 ~ 16 parts, high wear-resistant carbon black 8 ~ 12 parts, talcum powder 14 ~ 16 parts, kaolin 10 ~ 13 parts, nano aluminium oxide 14 ~ 16 parts, oxidation inhibitor AT-2151.6 ~ 2 part, sodium lignosulfonate 2 ~ 2.6 parts, Di Iso Decyl Phthalate 1.4 ~ 1.6 parts, polyvinyl butyral acetal 1.5 ~ 1.6 parts, nilox resin 1.4 ~ 1.6 parts, Zinic stearas 1.5 ~ 1.7 parts.
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| CN201511015264.5A CN105504540A (en) | 2015-12-31 | 2015-12-31 | Ethylene propylene diene monomer outer sheath for self-limiting electric tracing band |
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| CN201511015264.5A CN105504540A (en) | 2015-12-31 | 2015-12-31 | Ethylene propylene diene monomer outer sheath for self-limiting electric tracing band |
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| CN106519356A (en) * | 2016-11-23 | 2017-03-22 | 安徽微威环保科技有限公司 | Abrasion-resistant rubber material and preparation method thereof |
| CN106751872A (en) * | 2017-02-04 | 2017-05-31 | 安徽猎塔电缆集团有限公司 | One kind extrusion industrial flexible pipe of vulcanization type fire resisting |
| CN107629467A (en) * | 2017-10-31 | 2018-01-26 | 定远县保尔工贸有限公司 | A kind of charger baby Silicone Case of good heat dissipation effect |
| CN112863784A (en) * | 2021-01-19 | 2021-05-28 | 湖南兴诚电瓷电器有限公司 | High-strength composite porcelain knob insulator for high-voltage line and preparation method thereof |
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| CN106279856A (en) * | 2016-08-15 | 2017-01-04 | 吴显峰 | A kind of nontoxic high oil resistant ultrathin type locomotive cable of low smoke and zero halogen |
| CN106519356A (en) * | 2016-11-23 | 2017-03-22 | 安徽微威环保科技有限公司 | Abrasion-resistant rubber material and preparation method thereof |
| CN106751872A (en) * | 2017-02-04 | 2017-05-31 | 安徽猎塔电缆集团有限公司 | One kind extrusion industrial flexible pipe of vulcanization type fire resisting |
| CN107629467A (en) * | 2017-10-31 | 2018-01-26 | 定远县保尔工贸有限公司 | A kind of charger baby Silicone Case of good heat dissipation effect |
| CN112863784A (en) * | 2021-01-19 | 2021-05-28 | 湖南兴诚电瓷电器有限公司 | High-strength composite porcelain knob insulator for high-voltage line and preparation method thereof |
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Application publication date: 20160420 |