CN106566250A - High-temperature-resistant and damp-proof silicone rubber cable material - Google Patents
High-temperature-resistant and damp-proof silicone rubber cable material Download PDFInfo
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- CN106566250A CN106566250A CN201610905978.1A CN201610905978A CN106566250A CN 106566250 A CN106566250 A CN 106566250A CN 201610905978 A CN201610905978 A CN 201610905978A CN 106566250 A CN106566250 A CN 106566250A
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
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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
- C08K2201/01—Magnetic additives
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
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Abstract
The invention discloses a high-temperature-resistant and damp-proof silicone rubber cable material. The high-temperature-resistant and damp-proof silicone rubber cable material is prepared from the following raw materials in parts by weight: 60-70 of methyl vinyl silicone rubber (MVQ), 28-36 of medium-density polyethylene, 4.5-6 of maleic anhydride grafted polyethylene, 0.1-0.2 of a benzophenone photoinitiator, 0.1-0.2 of dicumyl peroxide, 3.6-4 of ferrous chloride, 6-6.8 of ferric trichloride, 20-25 of mica, 10-14 of low-melting-point glass powder, 1.6-2 of polyethylene glycol, 1.8-2.2 of ferrous sulfate, 2.5-3 of ammonium bicarbonate, 3-4 of tributyl phosphate, 3-4 of silicon carbide, 3-4 of ammonium polyphosphate, 6-8 of vermiculite, 0.1-0.2 of dodecyl trimethyl ammonium chloride, 5-7 of dicarboxylic anhydride and a proper quantity of deionized water. The high-temperature-resistant and damp-proof silicone rubber cable material has excellent high temperature resistance, low temperature resistance, water proofness and damp proofness, and at the same time, also has great insulativity, can adapt to specific use environmental conditions and is wide in market application prospects.
Description
Technical field
The present invention relates to field of cable technology, more particularly to a kind of high temperature resistant protection against the tide silicone rubber for cable material.
Background technology
Silicone rubber is a class with the Si-O keys that repeat as main chain, and side chain is the height of the organic groups such as methyl, vinyl, phenyl
Molecular compound.Due to the particularity of structure, determine that silicone rubber has excellent performance, such as ageing-resistant, high and low temperature resistance,
Weather-proof, solvent resistance, electrical insulation capability, the inertia to outside hot-fluid and relatively low HRR etc..Pure silicone rubber
The gas produced during burning will not produce the phenomenon of drippage without poison, and the residue after burning is silicon dioxide, and it is covered in poly-
The surface of compound, plays a part of to intercept heat transfer and mass transfer.These excellent performances due to silicone rubber so as to be widely applied to
The fields such as cable, electric wire, space flight and aviation, automobile and chemical industry.But silicone rubber has in itself oxygen index (OI) much smaller than 30, and according to
Industry standard, the material for manufacturing cable will have higher anti-flammability, in addition, silicone rubber is inflammable, once catch fire to continue
, there is potential burning risk, so as to limit its application in wires and cables industry to a certain extent in burning.Ceramic
Silicone rubber is a kind of refractory material for just receiving publicity in recent years, and it is in normal state general flexible silicone rubber material
Material, after naked light calcination is run into, silicone rubber can form one layer of continuation for being similar to ceramic material to keep out flame and invade, this
Material is wrapped in copper core the insulating barrier as cable, excellent insulating property, and protection circuit is not short-circuited and situations such as open circuit.
But the molecular flexibility of silicone rubber is big, and the interaction force between strand is weaker, causes mechanical strength poor, it is necessary to by having
The cross-linking method of effect improves its mechanical property, widens range of application.
《The preparation and its performance study of fire protection flame retarding silicone rubber and photo-crosslinking silicone rubber/polyolefin composite cable material》One
Author is to add Muscovitum, glass powder with low melting point and fire retardant in silicone rubber system first in text, is prepared for the silicon of fire-retardant fireproof
Rubber, cross-linking effect is optimal when as a result showing that vulcanizing agent DCP is 1wt%, and the addition of Muscovitum is most widely suited when being 40wt%, addition
Glass powder with low melting point to after silicone rubber system, mechanical property deteriorate, but into porcelain temperature drop, the size of porcelain compound after sintering
Tendencies toward shrinkage increases, and the intensity of porcelain compound increases after sintering at a higher temperature, and heat shock resistance effect strengthens, but compactness
Difference, but low-melting glass powder content it is certain when, temperature is raised has certain to the intensity of porcelain compound after heat shock resistance and sintering
Castering action, so the content of glass dust is best when being 30wt%.Secondly under conditions of light trigger and cross-linking agent are present, profit
With ultraviolet light to MVQ（Silicone rubber）/LLDPE（Linear low density polyethylene）Thermoplastic elastomer is crosslinked, and as a result shows addition
The white carbon of 45wt% is in system, and reinforcing effect is good；The mass ratio of double-component is 60 in MVQ/LLDPE composites：40 timeliness
Preferably, as effect during both compatilizers preferably, addition is most widely suited when being 4wt% for LDPE-MA, antioxidant 1010 addition for fruit
Measure for 0.5wt% when system combination property preferably, the tensile strength of sample is significantly improved after ultraviolet light irradiation, but extension at break
Rate declines, and ageing properties test shows, with the prolongation of ultraviolet light irradiation time, the ageing resistance of material is improved.Make herein
Person separately elaborates to add Muscovitum, glass powder with low melting point and fire retardant to the performance of silicone rubber in silicone rubber system, and addition is mended
Strong resin material is to the impact of overall mechanical properties in silicone rubber, and the application diversification and extensiveization with cable material be residing
Requirement of the abominable of geographical environment to cable material is very high, and fire-retardant is one of necessary problem that silicone rubber for cable considers, for
Other performances are also intended to the index as reference, institute such as cold-resistant, freeze proof, high temperature resistant, anticorrosive and intensity in practice
With the Important Problems for how improving the overall performance of silicone rubber and remaining current research with its demand for meeting diversification cable.
The content of the invention
The object of the invention is exactly to make up the defect of prior art, there is provided a kind of high temperature resistant protection against the tide silicone rubber for cable material
Material.
The present invention is achieved by the following technical solutions：
A kind of high temperature resistant protection against the tide silicone rubber for cable material, is made up of the raw material of following weight portion：MVQ silicone rubber 60-70, in
Density polyethylene 28-36, maleic anhydride grafted polyethylene 4.5-6, light trigger benzophenone 0.1-0.2, peroxidating diisopropyl
Benzene 0.1-0.2, ferrous chloride 3.6-4, ferric chloride 6-6.8, Muscovitum 20-25, glass powder with low melting point 10-14, Polyethylene Glycol
1.6-2, ferrous sulfate 1.8-2.2, ammonium hydrogen carbonate 2.5-3, tributyl phosphate 3-4, carborundum 3-4, APP 3-4, Vermiculitum
6-8, Dodecyl trimethyl ammonium chloride 0.1-0.2, dicarboxylic anhydride 5-7, appropriate deionized water.
A kind of high temperature resistant protection against the tide silicone rubber for cable material, is made up of step in detail below：
（1）Ferrous chloride and ferric chloride are dissolved in deionized water, in being placed in 50 DEG C of waters bath with thermostatic control, stirring is until solution mixing
Uniformly, add Muscovitum to stir with the rotating speed of 1600-1800r/min, be slowly added dropwise with the speed of 1d/s afterwards mole dense
The sodium hydroxide solution for 1.34mol/L is spent, until system pH is to 12, is stood, crystallization 2-4h, filtered, precipitation is carried out into magnetic
Separate, repeatedly washing, up to into neutrality, is vacuum dried and obtains modified magnetic Muscovitum deionized water；
（2）Glass powder with low melting point is added in the 11-13 times of dehydrated alcohol measured, Polyethylene Glycol ultrasonic disperse is stirring evenly and then adding into
Uniformly, it is standby；By ferrous sulfate and ammonium hydrogen carbonate, respectively deionized water dissolving makes concentration for 0.2mol/L and 0.4mol/L
Solution, during the above-mentioned standby mixed solution being stirred vigorously is continuously fed into constant flow pump, control ph is 6.5 after completion of dropping,
Continue to react 50-70min under room temperature, filter after ageing 30min, precipitate with deionized water is cleaned to neutral post-drying；
（3）Vermiculitum is added to into stirring pulping in the 8-10 times of deionized water measured, Dodecyl trimethyl ammonium chloride is added in 70-
75 DEG C of stirred in water bath 2-2.5h, cooled and filtered is dried at 110 DEG C in an oven after being washed with deionized, then will be modified
Vermiculitum and carborundum are added in dicarboxylic anhydride, are filtered Jing after high-speed stirred 2-3h, are subsequently placed in vacuum drying oven at 50 DEG C and are dried
After dry, grinding flour is standby；
（4）By step（1）The product and step of preparation（2）The product of preparation is according to mass ratio 40-65wt%：35-60wt% grinds
Mix homogeneously, MVQ silicone rubber, medium density polyethylene and maleic anhydride grafted polyethylene are added to into banbury according to mass ratio is carried out
Mixing, mixing time is 10-20min, and melting temperature is 180 DEG C, and rotating speed is 100r/min, in double roller mill after fused mass taking-up
Slice on machine, is added to banburying in banbury uniform, in two orthogonal direction jointly by itself and above-mentioned preliminary mixture again afterwards
Alternately addition magnetic field, finally adds light trigger, cross-linking agent TAIC, step（3）The product of preparation and other leftover materials enter
Row melt blending, melting temperature is 130 DEG C, kneads 5-8min, discharging, you can obtain.
It is an advantage of the invention that：The present invention generates silicon dioxide using silicone rubber after thermal degradation under oxygen and hot conditionss
Residue layer, Muscovitum can occur " eutectic " reaction with residue silicon dioxide at high temperature, and continuous structure is formed at high temperature,
When this structure is in 5-10 μ m-thicks just can effective strengthen burning residual ceramic layer intensity, thus anti-flammability can be improved, but
Residue intensity after sintering at a lower temperature is not high, needs to add the sintering temperature that filler reduces reacting, and ferrum oxide changes
Property Muscovitum and glass powder with low melting point so as to area load ferrum oxide simultaneously has magnetic, can be dispersed under the influence of a magnetic field
In matrix material, and the glass powder with low melting point of ferrum oxide load can under cryogenic promote silicone rubber residue to be formed
Mobile phase, quickening forms continuous residue, and forms the ceramic layer with some strength on surface and mica-bond, so
Modified glass dust can not only reduce generating the temperature of ceramics, it is also possible to quickly promote silicone rubber fast decoupled production dioxy
SiClx residue, while also improving the intensity of ceramic layer, it also avoid addition excessively causes the problem of processing difficulties, utilizes
Cationic surfactant is modified to Vermiculitum to improve activity so as to abundant heat-resisting, pressure and resistant to elevated temperatures performance, and
And again with carborundum with anhydride modified, caking property and dispersive property in matrix resin are improve, and improve rubber
The high temperature resistant of cable, high-strength, corrosion-resistant and moistureproof and waterproof performance；The present invention improves the performance of traditional silicone rubber cable material,
Make it possess high temperature resistant low temperature, the waterproof and dampproof ability of brilliance, while also having good insulating properties, can adapt to specifically make
With environmental condition, market application foreground is wide.
Specific embodiment
A kind of high temperature resistant protection against the tide silicone rubber for cable material, by following weight portion（Kilogram）Raw material make：MVQ silicon rubbers
Glue 60, medium density polyethylene 28, maleic anhydride grafted polyethylene 4.5, light trigger benzophenone 0.1, cumyl peroxide
0.1st, ferrous chloride 3.6, ferric chloride 6, Muscovitum 20, glass powder with low melting point 10, Polyethylene Glycol 1.6, ferrous sulfate 1.8, carbonic acid
Hydrogen ammonium 2.5, tributyl phosphate 3, carborundum 3, APP 3, Vermiculitum 6, Dodecyl trimethyl ammonium chloride 0.1, dicarboxylic anhydride
5th, appropriate deionized water.
A kind of high temperature resistant protection against the tide silicone rubber for cable material, is made up of step in detail below：
（1）Ferrous chloride and ferric chloride are dissolved in deionized water, in being placed in 50 DEG C of waters bath with thermostatic control, stirring is until solution mixing
Uniformly, add Muscovitum to stir with the rotating speed of 1600r/min, being slowly added dropwise molar concentration with the speed of 1d/s afterwards is
The sodium hydroxide solution of 1.34mol/L, until system pH is to 12, stands, crystallization 2h, filters, and precipitation is carried out into Magneto separate, uses
Repeatedly washing, up to into neutrality, is vacuum dried and obtains modified magnetic Muscovitum deionized water；
（2）Glass powder with low melting point is added in the dehydrated alcohol of 11 times of amounts, Polyethylene Glycol ultrasonic disperse is stirring evenly and then adding into equal
It is even, it is standby；It is that 0.2mol/L and 0.4mol/L is molten that by ferrous sulfate and ammonium hydrogen carbonate, respectively concentration is made in deionized water dissolving
Liquid, during the above-mentioned standby mixed solution being stirred vigorously is continuously fed into constant flow pump, control ph is 6.5 after completion of dropping, in room
Temperature is lower to be continued to react 50min, is filtered after ageing 30min, and precipitate with deionized water is cleaned to neutral post-drying；
（3）Vermiculitum is added to into stirring pulping in the deionized water of 8 times of amounts, Dodecyl trimethyl ammonium chloride is added in 70 DEG C of water
Stir 2h in bath, cooled and filtered is dried at 110 DEG C in an oven after being washed with deionized, then by PERFORMANCE OF MODIFIED VERMICULITE and carbonization
Silicon is added in dicarboxylic anhydride, is filtered Jing after high-speed stirred 2h, is subsequently placed in vacuum drying oven at 50 DEG C after drying, grinds flour
It is standby；
（4）By step（1）The product and step of preparation（2）The product of preparation is according to mass ratio 40wt%：35wt% ground and mixeds are equal
It is even, MVQ silicone rubber, medium density polyethylene and maleic anhydride grafted polyethylene are added to into banbury according to mass ratio and are kneaded,
Mixing time is 10min, and melting temperature is 180 DEG C, and rotating speed is 100r/min, and fused mass goes out after taking out in two-roll mill
Piece, is added to banburying in banbury and uniformly, alternately adds in two orthogonal direction jointly by itself and above-mentioned preliminary mixture again afterwards
Plus magnetic field, finally add light trigger, cross-linking agent TAIC, step（3）The product of preparation and other leftover materials are melted
Blending, melting temperature is 130 DEG C, kneads 5min, discharging, you can obtain.
Preparation method according to embodiment prepares silicone rubber for cable material, and performance test is carried out to it, as a result as follows：
Tensile strength（MPa）：15；Elongation at break（%）：628；Heat ageing coefficient：0.92；Anti-flammability（UL94V）：V0；The limit
Oxygen index (OI)：32.5；Solvent resistance（Mass loss rate %）：3.4.
Claims (2)
1. a kind of high temperature resistant protection against the tide silicone rubber for cable material, it is characterised in that be made up of the raw material of following weight portion：MVQ
Silicone rubber 60-70, medium density polyethylene 28-36, maleic anhydride grafted polyethylene 4.5-6, light trigger benzophenone 0.1-
0.2nd, cumyl peroxide 0.1-0.2, ferrous chloride 3.6-4, ferric chloride 6-6.8, Muscovitum 20-25, glass powder with low melting point
It is 10-14, Polyethylene Glycol 1.6-2, ferrous sulfate 1.8-2.2, ammonium hydrogen carbonate 2.5-3, tributyl phosphate 3-4, carborundum 3-4, poly-
Ammonium phosphate 3-4, Vermiculitum 6-8, Dodecyl trimethyl ammonium chloride 0.1-0.2, dicarboxylic anhydride 5-7, appropriate deionized water.
2. a kind of high temperature resistant protection against the tide silicone rubber for cable material according to claim 1, it is characterised in that by step in detail below
Preparation is made：
（1）Ferrous chloride and ferric chloride are dissolved in deionized water, in being placed in 50 DEG C of waters bath with thermostatic control, stirring is until solution mixing
Uniformly, add Muscovitum to stir with the rotating speed of 1600-1800r/min, be slowly added dropwise with the speed of 1d/s afterwards mole dense
The sodium hydroxide solution for 1.34mol/L is spent, until system pH is to 12, is stood, crystallization 2-4h, filtered, precipitation is carried out into magnetic
Separate, repeatedly washing, up to into neutrality, is vacuum dried and obtains modified magnetic Muscovitum deionized water；
（2）Glass powder with low melting point is added in the 11-13 times of dehydrated alcohol measured, Polyethylene Glycol ultrasonic disperse is stirring evenly and then adding into
Uniformly, it is standby；By ferrous sulfate and ammonium hydrogen carbonate, respectively deionized water dissolving makes concentration for 0.2mol/L and 0.4mol/L
Solution, during the above-mentioned standby mixed solution being stirred vigorously is continuously fed into constant flow pump, control ph is 6.5 after completion of dropping,
Continue to react 50-70min under room temperature, filter after ageing 30min, precipitate with deionized water is cleaned to neutral post-drying；
（3）Vermiculitum is added to into stirring pulping in the 8-10 times of deionized water measured, Dodecyl trimethyl ammonium chloride is added in 70-
75 DEG C of stirred in water bath 2-2.5h, cooled and filtered is dried at 110 DEG C in an oven after being washed with deionized, then will be modified
Vermiculitum and carborundum are added in dicarboxylic anhydride, are filtered Jing after high-speed stirred 2-3h, are subsequently placed in vacuum drying oven at 50 DEG C and are dried
After dry, grinding flour is standby；
（4）By step（1）The product and step of preparation（2）The product of preparation is according to mass ratio 40-65wt%：35-60wt% grinds
Mix homogeneously, MVQ silicone rubber, medium density polyethylene and maleic anhydride grafted polyethylene are added to into banbury according to mass ratio is carried out
Mixing, mixing time is 10-20min, and melting temperature is 180 DEG C, and rotating speed is 100r/min, in double roller mill after fused mass taking-up
Slice on machine, is added to banburying in banbury uniform, in two orthogonal direction jointly by itself and above-mentioned preliminary mixture again afterwards
Alternately addition magnetic field, finally adds light trigger, cross-linking agent TAIC, step（3）The product of preparation and other leftover materials enter
Row melt blending, melting temperature is 130 DEG C, kneads 5-8min, discharging, you can obtain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610905978.1A CN106566250A (en) | 2016-10-17 | 2016-10-17 | High-temperature-resistant and damp-proof silicone rubber cable material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610905978.1A CN106566250A (en) | 2016-10-17 | 2016-10-17 | High-temperature-resistant and damp-proof silicone rubber cable material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057431A (en) * | 2021-11-19 | 2022-02-18 | 浙江元通线缆制造有限公司 | Fireproof material for low-temperature ceramic inorganic mineral cable and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554922A (en) * | 2013-10-25 | 2014-02-05 | 安徽文峰电子科技集团有限公司 | Temperature-resistant damp-proof and insulating methyl vinyl silicone rubber cable material |
| CN104177838A (en) * | 2014-08-11 | 2014-12-03 | 无锡市华美电缆有限公司 | Fluorosilicone rubber cable material for coal mine cable and preparation method of cable material |
-
2016
- 2016-10-17 CN CN201610905978.1A patent/CN106566250A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554922A (en) * | 2013-10-25 | 2014-02-05 | 安徽文峰电子科技集团有限公司 | Temperature-resistant damp-proof and insulating methyl vinyl silicone rubber cable material |
| CN104177838A (en) * | 2014-08-11 | 2014-12-03 | 无锡市华美电缆有限公司 | Fluorosilicone rubber cable material for coal mine cable and preparation method of cable material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057431A (en) * | 2021-11-19 | 2022-02-18 | 浙江元通线缆制造有限公司 | Fireproof material for low-temperature ceramic inorganic mineral cable and preparation method thereof |
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Application publication date: 20170419 |