CN104087001A - Intermediate pressure level low-smoke zero-halogen flame-retardant silicon rubber insulating material and manufacturing process thereof - Google Patents
Intermediate pressure level low-smoke zero-halogen flame-retardant silicon rubber insulating material and manufacturing process thereof Download PDFInfo
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- CN104087001A CN104087001A CN201410325992.5A CN201410325992A CN104087001A CN 104087001 A CN104087001 A CN 104087001A CN 201410325992 A CN201410325992 A CN 201410325992A CN 104087001 A CN104087001 A CN 104087001A
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 36
- 239000003063 flame retardant Substances 0.000 title claims abstract description 35
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 27
- 239000000779 smoke Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000011810 insulating material Substances 0.000 title abstract description 8
- 239000007822 coupling agent Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 14
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- -1 methyl vinyl Chemical group 0.000 claims abstract description 4
- 239000012774 insulation material Substances 0.000 claims description 29
- 150000002367 halogens Chemical class 0.000 claims description 25
- 229920001971 elastomer Polymers 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 20
- 239000005060 rubber Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 14
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 14
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 235000019241 carbon black Nutrition 0.000 claims description 9
- 238000010074 rubber mixing Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 229940126062 Compound A Drugs 0.000 claims description 6
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 235000012254 magnesium hydroxide Nutrition 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 claims description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- XTUPREMODWQUSJ-UHFFFAOYSA-N 2-tert-butylperoxy-2-methylpropane;hexane Chemical compound CCCCCC.CC(C)(C)OOC(C)(C)C XTUPREMODWQUSJ-UHFFFAOYSA-N 0.000 claims description 3
- OKISUZLXOYGIFP-UHFFFAOYSA-N 4,4'-dichlorobenzophenone Chemical compound C1=CC(Cl)=CC=C1C(=O)C1=CC=C(Cl)C=C1 OKISUZLXOYGIFP-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 150000004645 aluminates Chemical group 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- OLLFKUHHDPMQFR-UHFFFAOYSA-N dihydroxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](O)(O)C1=CC=CC=C1 OLLFKUHHDPMQFR-UHFFFAOYSA-N 0.000 claims description 3
- XQSFXFQDJCDXDT-UHFFFAOYSA-N hydroxysilicon Chemical compound [Si]O XQSFXFQDJCDXDT-UHFFFAOYSA-N 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000003085 diluting agent Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 235000013980 iron oxide Nutrition 0.000 claims description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 34
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 2
- 229910052901 montmorillonite Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000032683 aging Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 229920000260 silastic Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
Abstract
The invention discloses an intermediate pressure level low-smoke zero-halogen flame-retardant silicon rubber insulating material and a manufacturing process thereof. The material is characterized by being prepared from the following raw materials in parts by weight: 35-45 parts of methyl vinyl organic silicon rubber, 15-25 parts of white carbon black, 1.5-3 parts of nano-montmorillonite, 10-25 parts of aluminum hydroxide, 10-18 parts of magnesium hydroxide, 0.4-0.8 part of an across-linking agent, 2-5.8 parts of a structure control agent, 2-4 parts of iron oxide red and 0.80-1.5 parts of a coupling agent. The insulating material disclosed by the invention not only can satisfy the requirements on heat resistance, high electrical insulating performance and the like of an intermediate pressure level cable insulating material, a cable accessory and the like, but also has high mechanical strength, so that the novel application field of the silicon rubber material is opened up.
Description
Technical field
The invention belongs to silicon rubber insulation material technology field, be specifically related to a kind of silicon rubber insulation material and manufacturing process thereof of applying in high-voltage, high low temperature, fire-retardant, environmental protection, soft isoelectric line cable.
Background technology
Silicon rubber has excellent electrical insulation properties and good physical and mechanical properties, resistance to atmospheric aging, resistance to smelly endowment, light aging resisting, fire-retardant, radiation hardness, oil resistant, it is one of elastomer material that use temperature is the highest, as insulating material, can be widely used in insulation and the sheath of the multiple cables such as shipboard cable, aviation wire, motor leading and connecting are existing, heating cables.
Due to the excellent specific property that silastic material has, the demand of silicon rubber insulation electric wire is increasing, but the current low tension wire field of cables that is mainly used in.Along with the development of all kinds of mechanized equipments and the raising of market demands, need the silicon rubber insulation material of resistance to more voltage levels, improve power delivery ability.As rail locomotive vehicle traction flexible cable.The raising of insulating material proof voltage grade, needs material to have and causes that the factor of shelf depreciation exists, and Material texture is even, without granule foreign, bubble, free son etc.And the running environment of cable also needs material to have the harsh requirements such as resistance to high/low temperature, higher mechanical property, fire-retardant and environmental protection.But the mechanical property of general category silicon rubber is other quality of rubber materials relatively, poor, do not meet the requirement under special conditions, improve silastic material and under 6-35kV grade, move electric property and mechanical property, become one of focus of numerous silastic material application.
, there is contradiction in the requirement of above-mentioned performance index, become the difficult point place of the research and development of such material in the formulating of recipe of material.
Summary of the invention
The present invention overcomes deficiency of the prior art, and a kind of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material and manufacturing process thereof with features such as high voltage withstanding, resistance to high/low temperature, fire-retardant, environmental protection, softness and manufacturing process are simple is provided.
For achieving the above object, technical scheme of the present invention is as follows;
The feature of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention is to consist of by the raw material of mass parts:
35～45 parts of methyl ethylene organosilicon rubbers, 15～25 parts of white carbon blacks, 1.5～3 parts of nano imvites, 10～25 parts, aluminium hydroxide, 10～18 parts of magnesium hydroxides, 0.4～0.8 part of linking agent, 2～5.8 parts of constitution controllers, 2～4 parts of red iron oxides, 0.80～1.5 part of coupling agent.
The feature of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention is also:
The molfraction that contents of ethylene in described methyl ethylene organosilicon rubber accounts for methyl ethylene monomer is 0.10～0.15%, and monomer molecule weight average relative molecular weight is 46～600,000.
Described white carbon black is that gas-phase process is manufactured gained.
Described linking agent is 2,5-dimethyl-2,5 di-tert-butyl peroxide hexane DBPMH; Or be 2,4-dichlorobenzoperoxide DCBP; Or be dicumyl peroxide DCP.
Described constitution controller is any one in Diphenylsilanediol and hydroxy silicon oil, or is both composition of arbitrary proportion.
Described coupling agent is silane coupling agent, alkoxyl group titanate coupling agent, tetra-sodium type titanium ester acid coupling agent, or is aluminate coupling agent.
The feature of the manufacturing process of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention is to carry out according to the following steps, and in step, the amount of taking of each raw material is all by mass parts:
Step 1: get 10～18 parts of 10～25 parts, aluminium hydroxide and magnesium hydroxides and be jointly placed in mixing machine and be uniformly mixed; Utilize when friction is preheated to 95～150 ℃; By the dehydrated alcohol mixing diluents of 0.80～1.5 part of coupling agent and equal in quality part, and be divided into and be spilled into or be vaporific spraying in mixing machine for 2-4 time, continue to stir 10-15 minute, make surface treated aluminium hydroxide and magnesium hydrate powder;
Step 2: the aluminium hydroxide that step 1 is made and magnesium hydrate powder are divided into and join for 2-3 time in Banbury mixer, in temperature, be that 110-140 ℃, rotating speed are 25-35rpm, under the condition of be not more than-0.09MPa of pressure, jointly mix with 17.5～22.5 parts of methyl ethylene organosilicon rubbers, make compound A;
Step 3: 2～4 parts of 15～25 parts of white carbon blacks, 1.5～3 parts of nano imvites, 2～5.8 parts of constitution controllers, red iron oxide are joined in Banbury mixer jointly, in temperature, be 110-140 ℃, rotating speed is 25-35rpm, under the condition of be not more than-0.09MPa of pressure, jointly mix with 17.5～22.5 parts of methyl ethylene organosilicon rubbers, make compound B;
Step 4: described compound A and compound B are placed in to Banbury mixer jointly, are 140-160 ℃ in temperature, fully mixes under the condition that rotating speed is 25-35rpm, makes compound C;
Step 5: compound C is placed at normal temperatures and is not less than 24 hours, more at normal temperatures through thin-pass back mixing and filter out the blend glue stuff D that impurity that particle diameter is greater than 250 μ m makes;
Step 6: blend glue stuff D and 0.4～0.8 part of linking agent are evenly mixed at the temperature of 30-70 ℃ through rubber mixing machine and obtain medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material.
The feature of the manufacturing process of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention is also:
In described step 5, thin-pass back mixing is to adopt twin-roll machine, and the thin-pass roll spacing of described twin-roll machine is 0.5-5mm, thin-pass number of times 3-5 time.
Rubber mixing machine in described step 6 is opening rubber mixing machine, and it is 1-12mm that two roller roll spacings in described opening rubber mixing machine are set.
The application of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention is: described medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material is passed through to rubber extruding machine extrusion moulding, described rubber extruding machine is evenly segmented into a district, two He San districts, district from opening for feed to head, linear velocity is 15-35m/min, makes cable insulation.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the base material in the present invention has been selected methyl ethylene organosilicon rubber, and it has good elasticity, ageing-resistant performance, has excellent electrical insulation properties, has increased red iron oxide in component, has improved the resistance toheat of organic materials; The 110-2 type trade mark, contents of ethylene is higher, easily crosslinked; Material thermal ageing and tension set performance also have obvious improvement, and processing performance is good, favourable lower, extrude.
2, in material of the present invention, adopt thermal silica, with respect to precipitated silica, the mechanical property of insulating material significantly improves, and has greatly improved tensile strength and the tearing strength of material, and dielectric properties are also good, and water tolerance is superior.
The advantages such as 3, in the present invention, linking agent adopts peroxide cross-linking agent, is applicable to supersaturated vapor crosslinking reaction, and rate of crosslinking is fast, not easy to foaming.
4, the constitution controller that the present invention adds, strong with the organic and inorganic thing avidity such as silicon rubber, white carbon black, aluminium hydroxide, can greatly reduce " structurizing " effect of material, improved mechanical property and the processing characteristics of material.
5, the present invention adopts coupling agent to carry out surface treatment to powder body materials such as inorganic combustion inhibitors, improved " bonding force " between powder body material, inorganic materials, not only can improve the mechanical property of material, but also greatly carry, fall the difficulty of processing that material mixing is manufactured.In the course of processing, adopted with alcohol dilution agent and mixed, improved homogeneity and effect that powder body material surface is processed, also improve hybrid process production efficiency.
6, in formula constituent of the present invention, add nano imvite, reduced the consumption of fire retardant aluminium hydroxide, magnesium hydrate powder material, improved its flame retardant effect, thereby when improving the flame retardant effect of material, the mechanical property and the electric property level that improve material are the important innovative points of the present invention.
7, in manufacturing process of the present invention, adopt substep hybrid process, improve the mixing uniformity between organic and inorganic material, prevent or reduce the generation of " gathering " phenomenon of inorganic powder material, improve the homogeneity of the mixing of material.
8, materials processing of the present invention adopts supersaturated vapor sulfuration, the one, production efficiency than the fast 3-5 of post vulcanization doubly, the 2nd, owing to there being the pressure of 0.3-0.9MPa, post vulcanization under relative normal pressure, reduce the generation of insulation layer bubble, greatly improve the electric property of insulation layer, also improved the mechanical property of material.
Embodiment
In concrete enforcement, medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention, forms as table 1 row by mass parts raw material:
Table 1 medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material component proportioning
In concrete enforcement, methyl ethylene organosilicon rubber is 110-2 type, and vinyl molfraction is 0.10～0.15%, weight average relative molecular weight 46～600,000; White carbon black is gas-phase process manufacture; Linking agent is 2,5-dimethyl-2,5 di-tert-butyl peroxide hexane DBPMH or 2,4-dichlorobenzoperoxide DCBP or dicumyl peroxide DCP; Constitution controller is Diphenylsilanediol, hydroxy silicon oil or its composition; Coupling agent is silane coupling agent, alkoxyl group titanate coupling agent, tetra-sodium type titanium ester acid coupling agent or aluminate coupling agent.
The manufacturing process of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material, is characterized in that carrying out according to the following steps:
Step 1: in proportion, pour aluminium hydroxide, magnesium hydrate powder into SHR type high-speed mixer high-speed stirring, utilize it from friction, to be preheated to after 95～150 ℃ of temperature, divide slow being spilled into or the vaporific coupling agent that sprays into 2-4 time, continue high-speed mixing and stir 10-15min, in comparatively high temps, complete aluminium hydroxide, magnesium hydroxide and coupling agent reaction process;
In concrete enforcement, coupling agent will be pressed 1:1 mixed solvent with dehydrated alcohol thinner.
Step 2: by aluminium hydroxide, the magnesium hydrate powder after the prepared surface treatment of step 1, dividing 2-3 to criticize joins in high speed Banbury mixer, at temperature 110-140 ℃, fast slurry rotating speed 25-35Rpm, under be less than-0.09Mpa of vacuum tightness pressure, mix with the amount of half methyl ethylene organosilicon rubber in proportioning, make compound A.
Step 3: white carbon black, nano imvite, constitution controller, red iron oxide in mass ratio example join in high speed Banbury mixer, at temperature 110-140 ℃, fast slurry rotating speed 25-35Rpm, under be less than-0.09Mpa of vacuum tightness pressure, mix with proportioning residual content methyl ethylene organosilicon rubber, make compound B.
Step 4: the compound A that the 2nd step is made pours in high speed Banbury mixer together with making compound B with the 3rd step, at temperature 140-160 ℃, starches under rotating speed 25-35Rpm through fully mixing mixing material C soon.
Step 5: placement back mixing after at least 24 hours, filtration under mixing material C normal temperature, obtain insulation paste D; The thin-pass roll spacing of using during back mixing is 0.5-5mm, 3-5 slice of thin-pass number of times; Filtration is to complete by filter, and the filter screen of filter is three layers, and order number is respectively 60,80,120.
Step 6: blend glue stuff D mixes through mill with linking agent, makes insulating material of the present invention; Mill is opening rubber mixing machine, 30～70 ℃ of the temperature of twin-roll mixing, and roll spacing is 4-12mm.
In concrete enforcement, when Insulation Material is extruded, body temperature 1st district of rubber extruding machine is 50 ± 5 ℃, 2nd district are 60 ± 5 ℃, 3rd district are 65 ± 5 ℃, head temperature is 70 ± 5 ℃, rubber extruding machine screw rod adopts water cooling, extrudes the pressure that rear employing supersaturated vapor pressure is 0.3-0.9MPa and vulcanizes online, and going out linear velocity is 20-35m/min.
In table 1, embodiment 1 is because inorganic fill is more, and material cost price is lower, and material flame retardant effect is also best; Embodiment 4 inorganic materials content are minimum, and the electric property of material is best, and mechanical index is also higher, but hinder right weak effect.
Medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material of the present invention, can reach technical indicator shown in table 2:
Claims (10)
1. a medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material, is characterized in that consisting of by the raw material of mass parts:
35～45 parts of methyl ethylene organosilicon rubbers, 15～25 parts of white carbon blacks, 1.5～3 parts of nano imvites, 10～25 parts, aluminium hydroxide, 10～18 parts of magnesium hydroxides, 0.4～0.8 part of linking agent, 2～5.8 parts of constitution controllers, 2～4 parts of red iron oxides, 0.80～1.5 part of coupling agent.
2. medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 1, it is characterized in that: the molfraction that the contents of ethylene in described methyl ethylene organosilicon rubber accounts for methyl ethylene monomer is 0.10～0.15%, and monomer molecule weight average relative molecular weight is 46～600,000.
3. medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 1, is characterized in that: described white carbon black is that gas-phase process is manufactured gained.
4. medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 1, is characterized in that: described linking agent is 2,5-dimethyl-2,5 di-tert-butyl peroxide hexane DBPMH; Or be 2,4-dichlorobenzoperoxide DCBP; Or be dicumyl peroxide DCP.
5. medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 1, is characterized in that: described constitution controller is any one in Diphenylsilanediol and hydroxy silicon oil, or is both composition of arbitrary proportion.
6. medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 1, is characterized in that: described coupling agent is silane coupling agent, alkoxyl group titanate coupling agent, tetra-sodium type titanium ester acid coupling agent, or is aluminate coupling agent.
7. a manufacturing process for medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material, is characterized in that carrying out according to the following steps, and in step, the amount of taking of each raw material is all by mass parts:
Step 1: get 10～18 parts of 10～25 parts, aluminium hydroxide and magnesium hydroxides and be jointly placed in mixing machine and be uniformly mixed; Utilize when friction is preheated to 95～150 ℃; By the dehydrated alcohol mixing diluents of 0.80～1.5 part of coupling agent and equal in quality part, and be divided into and be spilled into or be vaporific spraying in mixing machine for 2-4 time, continue to stir 10-15 minute, make surface treated aluminium hydroxide and magnesium hydrate powder;
Step 2: the aluminium hydroxide that step 1 is made and magnesium hydrate powder are divided into and join for 2-3 time in Banbury mixer, in temperature, be that 110-140 ℃, rotating speed are 25-35rpm, under the condition of be not more than-0.09MPa of pressure, jointly mix with 17.5～22.5 parts of methyl ethylene organosilicon rubbers, make compound A;
Step 3: 2～4 parts of 15～25 parts of white carbon blacks, 1.5～3 parts of nano imvites, 2～5.8 parts of constitution controllers, red iron oxide are joined in Banbury mixer jointly, in temperature, be 110-140 ℃, rotating speed is 25-35rpm, under the condition of be not more than-0.09MPa of pressure, jointly mix with 17.5～22.5 parts of methyl ethylene organosilicon rubbers, make compound B;
Step 4: described compound A and compound B are placed in to Banbury mixer jointly, are 140-160 ℃ in temperature, fully mixes under the condition that rotating speed is 25-35rpm, makes compound C;
Step 5: compound C is placed at normal temperatures and is not less than 24 hours, more at normal temperatures through thin-pass back mixing and filter out the blend glue stuff D that impurity that particle diameter is greater than 250 μ m makes;
Step 6: blend glue stuff D and 0.4～0.8 part of linking agent are evenly mixed at the temperature of 30-70 ℃ through rubber mixing machine and obtain medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material.
8. the manufacturing process of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 7, is characterized in that: in described step 5, thin-pass back mixing is to adopt twin-roll machine, and the thin-pass roll spacing of described twin-roll machine is 0.5-5mm, thin-pass number of times 3-5 time.
9. the manufacturing process of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 7, is characterized in that: the rubber mixing machine in described step 6 is opening rubber mixing machine, and it is 1-12mm that two roller roll spacings in described opening rubber mixing machine are set.
10. the application of medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material according to claim 1, it is characterized in that: described medium pressure grade low-smoke non-halogen flame-retardant silicon rubber insulation material is passed through to rubber extruding machine extrusion moulding, described rubber extruding machine is evenly segmented into a district, two He San districts, district from opening for feed to head, it is 50 ± 5 ℃ that one district's temperature is set, two district's temperature are 60 ± 5 ℃, three district's temperature are 65 ± 5 ℃, and head temperature is 70 ± 5 ℃; For rubber extruding machine screw rod, adopt water cooling, extrude the supersaturated vapor that rear employing pressure is 0.3-0.9MPa and vulcanize online, going out linear velocity is 15-35m/min, makes cable insulation.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104497581A (en) * | 2014-12-17 | 2015-04-08 | 苏州锦腾电子科技有限公司 | Heat-resistant single-component room-temperature vulcanized liquid silicone rubber and preparation method thereof |
| CN105034192A (en) * | 2015-06-18 | 2015-11-11 | 天津市安正电力高分子材料有限公司 | 110-500kV insulation material production process |
| CN105348800A (en) * | 2015-11-24 | 2016-02-24 | 江苏华富储能新技术股份有限公司 | Flame-retardant insulating material |
| CN105778151A (en) * | 2016-05-11 | 2016-07-20 | 闽江学院 | Halogen-free flame retardant for silica gel, application of halogen-free flame retardant and flame-retardant silica gel product |
| CN105949784A (en) * | 2016-05-12 | 2016-09-21 | 东莞市联洲知识产权运营管理有限公司 | Efficient insulating heat-resisting silicone rubber cable material and preparation method thereof |
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| CN113025045A (en) * | 2021-02-23 | 2021-06-25 | 安徽中鼎密封件股份有限公司 | High-strength low-density halogen-free flame-retardant silica gel material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747631A (en) * | 2008-12-01 | 2010-06-23 | 中国科学院过程工程研究所 | Flame-retardant room temperature vulcanized silicone rubber composition |
| CN102093718A (en) * | 2010-11-19 | 2011-06-15 | 四川大学 | Method for preparing silicone rubber foam material with low density and high opening rate |
-
2014
- 2014-07-09 CN CN201410325992.5A patent/CN104087001B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747631A (en) * | 2008-12-01 | 2010-06-23 | 中国科学院过程工程研究所 | Flame-retardant room temperature vulcanized silicone rubber composition |
| CN102093718A (en) * | 2010-11-19 | 2011-06-15 | 四川大学 | Method for preparing silicone rubber foam material with low density and high opening rate |
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|---|---|---|---|---|
| CN104497581A (en) * | 2014-12-17 | 2015-04-08 | 苏州锦腾电子科技有限公司 | Heat-resistant single-component room-temperature vulcanized liquid silicone rubber and preparation method thereof |
| CN105034192A (en) * | 2015-06-18 | 2015-11-11 | 天津市安正电力高分子材料有限公司 | 110-500kV insulation material production process |
| CN105034192B (en) * | 2015-06-18 | 2017-10-31 | 安正（天津）新材料股份有限公司 | 110 500kV of one kind insulation material manufacturing techniques |
| CN105348800A (en) * | 2015-11-24 | 2016-02-24 | 江苏华富储能新技术股份有限公司 | Flame-retardant insulating material |
| CN105778151A (en) * | 2016-05-11 | 2016-07-20 | 闽江学院 | Halogen-free flame retardant for silica gel, application of halogen-free flame retardant and flame-retardant silica gel product |
| CN105949784A (en) * | 2016-05-12 | 2016-09-21 | 东莞市联洲知识产权运营管理有限公司 | Efficient insulating heat-resisting silicone rubber cable material and preparation method thereof |
| CN106084359A (en) * | 2016-07-12 | 2016-11-09 | 陕西理工学院 | A kind of halogen-free environment-friendly type flame-proof rubber and preparation method thereof |
| CN106977926A (en) * | 2017-04-24 | 2017-07-25 | 新昌县恩喜电器有限公司 | A kind of three phase combined over-voltage protector sulphurated siliastic |
| CN112898688A (en) * | 2021-01-20 | 2021-06-04 | 武汉科锐电气股份有限公司 | Medium-low voltage grade halogen-free flame-retardant ethylene propylene rubber insulating material and preparation method thereof |
| CN113025045A (en) * | 2021-02-23 | 2021-06-25 | 安徽中鼎密封件股份有限公司 | High-strength low-density halogen-free flame-retardant silica gel material and preparation method thereof |
| CN116102887A (en) * | 2022-10-28 | 2023-05-12 | 南方电网科学研究院有限责任公司 | Umbrella skirt material of silicon rubber insulator, preparation method and application of silicon rubber insulator |
| WO2024087333A1 (en) * | 2022-10-28 | 2024-05-02 | 南方电网科学研究院有限责任公司 | Silicone rubber insulator shed material, and silicone rubber insulator and preparation method therefor and application thereof |
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