CN108587053A - A kind of weather-proof conductive rubber of high stability - Google Patents
A kind of weather-proof conductive rubber of high stability Download PDFInfo
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- CN108587053A CN108587053A CN201810471252.0A CN201810471252A CN108587053A CN 108587053 A CN108587053 A CN 108587053A CN 201810471252 A CN201810471252 A CN 201810471252A CN 108587053 A CN108587053 A CN 108587053A
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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
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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
- C08K2201/001—Conductive 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
- C08L2201/04—Antistatic
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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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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Conductive Materials (AREA)
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Abstract
The present invention relates to technical field of electromagnetic shielding, and in particular to a kind of weather-proof conductive rubber of high stability.Conductive rubber includes following components：Silicon rubber, conductive metal powder, electric conductivity phenol-formaldehyde resin powder, composite coupler, vulcanizing agent, stabilizer and tackifier.Wherein, electric conductivity phenol-formaldehyde resin powder is the product obtained after compound by porous graphene and phenolic resin, the one kind of silicon rubber in methyl silicone rubber, methyl vinyl silicone rubber and methyl ethylene trifluoro propyl silicon rubber；Conductive metal powder is one kind in silver-colored alclad conducting powder, wicker copper conducting powder, silver-colored nickel coat conducting powder and Yin Bao glass conducting powders；Vulcanizing agent is DCP, TDDS or DCBP；Stabilizer is magnesia；Tackifier are coumarone indene resin or polybutadiene.Compatibility between the type conductive rubber component is more preferable, and the property of material is more stablized, and has better high temperature resistant, anti-aging property.
Description
Technical field
The present invention relates to technical field of electromagnetic shielding, and in particular to a kind of weather-proof conductive rubber of high stability.
Background technology
Conductive rubber is that electroconductive stuffing is evenly distributed in silicon rubber, so that conductive particle is contacted by pressure, reaches
A kind of rubber material of good electric conductivity.The main function of conductive rubber is sealing and electromagnetic shielding.Product can be molded
Or extrusion molding, obtain the structure of diversified forms.The electroconductive stuffing used in conductive rubber in the market is mainly：Graphite plates
The conductive particles such as nickel, aluminium are silver-plated, nickel is silver-plated, copper is silver-plated, graphite, fine silver, these particles are metal material or inorganic non-metallic
Material.Although the type conductive rubber has good conductivity, due between inorganic material and organic silastic material
Natural nature difference, the material compatibility both caused is insufficient, final the result is that the thermostable type of conductive rubber and anti-ageing
It is generally poor to change performance.Conductive rubber is in the condition of high temperature and other Strong oxdiative environment, the deformation extent of silastic material
Faster, under the conditions of this, the combination effect of silicon rubber base-material and conductive filler is deteriorated, and eventually leads to conduction for bigger, aging speed
Ageing of rubber deforms, and loses use value.
Invention content
For problems of the prior art, the present invention provides a kind of weather-proof conductive rubber of high stability, the types
Compatibility between conductive rubber component is more preferable, and the property of material is more stablized, and has better high temperature resistant, anti-aging property.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of weather-proof conductive rubber of high stability, according to mass fraction, conductive rubber includes following components：Silicon rubber
30-40 parts, 20-25 parts of conductive metal powder, 60-70 parts of electric conductivity phenol-formaldehyde resin powder, 2-5 parts of composite coupler, vulcanizing agent 1-1.8
Part, 3-4 parts of stabilizer, 3-4 parts of tackifier.
Preferably, according to mass fraction, conductive rubber includes following components：35-37 parts of silicon rubber, conductive metal powder 22-
23 parts, 65-68 parts of electric conductivity phenol-formaldehyde resin powder, 3-4 parts of composite coupler, 1.5-1.7 parts of vulcanizing agent, 3.6-3.8 parts of stabilizer,
3.5-3.7 parts of tackifier.
In the present invention, the preparation method of electric conductivity phenol-formaldehyde resin powder is as follows：By lignocellulosic through peracid treatment and organic
After flux processing, porous cellulose is obtained, porous cellulose is in helium protection and the catalytic action of cobalt class compound catalyst
Under, obtain porous graphene through high-temperature process；Then according to 30:7:1 ratio lives phenolic resin, porous graphene and surface
Property agent, which is added in reaction kettle, to be mixed, disperses, required electric conductivity phenolic resin, the wherein reaction temperature in reaction kettle is obtained by the reaction
It is 80-95 DEG C；Electric conductivity phenolic resin is crushed to 450-500 mesh, obtains required electric conductivity phenol-formaldehyde resin powder.
Preferably, surfactant is fatty glyceride or fatty acid sorbitan.
Preferably, silicon rubber is selected from methyl silicone rubber, methyl vinyl silicone rubber and methyl ethylene trifluoro propyl silicon rubber
One kind in glue；Conductive metal powder is silver-colored alclad conducting powder, wicker copper conducting powder, silver-colored nickel coat conducting powder and Yin Bao glass conducting powders
In one kind.
Preferably, composite coupler is amino silicane coupling agent, epoxy silane coupling and azido silanes coupling agent
Mixture, the mass ratio of three is 2:1:1.
Preferably, vulcanizing agent DCP, TDDS or DCBP；Stabilizer is magnesia；Tackifier are coumarone indene resin or poly- fourth
Diene resin.
The preparation method of conductive rubber provided by the invention includes the following steps：
(1) composite coupler is dispersed in the absolute ethyl alcohol of 3-4 times of volume, obtains composite coupler solution；
(2) mass fraction is pressed, conductive metal powder and electric conductivity phenol-formaldehyde resin powder are added in batch mixer, with 300-
The rotating speed of 400r/min is sufficiently mixed uniformly, then into batch mixer be added composite coupler solution, with 80-90 DEG C of temperature after
Continuous mixing 4-7min, obtains composite conductive powder；
(3) composite conductive powder and silicon rubber that upper step obtains are added in mixer together, are kneaded 15-20min, so
Tackifier are put into afterwards and stabilizer continues mixing 20-30min, then vulcanizing agent are added in mixer, thin logical 6- after mixing
10 times；
(4) it by after the sizing material bottom sheet of upper step, is sent on vulcanizing press, with 150-170 DEG C of temperature vulcanizing treatment 2-
3h obtains required conductive rubber.
The present invention has following advantageous effect：
In the type electric silica gel, traditional metal or inorganic non-metallic type conductive filler are used to the phenolic resin of electric conductivity
It is substituted, since the compatibility of phenolic resin and silicon rubber is more outstanding, so the combination of conductive filler and silicon rubber base rubber
Even closer, the performance of conductive rubber is also more stablized, wherein in order to insulation phenolic resin it is conductive, in phenolic aldehyde
This material of porous graphene is compounded in resin, and not only electric conductivity is outstanding, can also be with the phenolic aldehyde Jing Guo surface modification treatment
Stable resin is compound, forms the electric conductivity phenolic resin with excellent electrical conductivity.In addition, other ingredients make in through the invention
With remaining every weather resistance of the type conductive rubber is also very outstanding.
Specific implementation mode
The specific implementation mode of the present invention is further described with reference to embodiment, following embodiment is only used for more
Technical scheme of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of weather-proof conductive rubber of high stability, according to mass fraction, conductive rubber includes following components：Silicon rubber 30
Part, 20 parts of conductive metal powder, 60 parts of electric conductivity phenol-formaldehyde resin powder, 2 parts of composite coupler, 1 part of vulcanizing agent, 3 parts of stabilizer, thickening
3 parts of agent.
In the present embodiment, the preparation method of electric conductivity phenol-formaldehyde resin powder is as follows：Lignocellulosic through peracid treatment and is had
After the processing of machine flux, porous cellulose is obtained, porous cellulose is protected in helium and the catalysis of cobalt class compound catalyst is made
Under, porous graphene is obtained through high-temperature process；Then according to 30:7:1 ratio is by phenolic resin, porous graphene and surface
Activating agent, which is added in reaction kettle, to be mixed, disperses, required electric conductivity phenolic resin, the reaction temperature wherein in reaction kettle is obtained by the reaction
Degree is 80 DEG C；Electric conductivity phenolic resin is crushed to 450 mesh, obtains required electric conductivity phenol-formaldehyde resin powder.Wherein, surfactant
For fatty glyceride.
In the present embodiment, silicon rubber is methyl silicone rubber；Conductive metal powder is silver-colored alclad conducting powder.
Composite coupler is the mixing of amino silicane coupling agent, epoxy silane coupling and azido silanes coupling agent
The mass ratio of object, three is 2:1:1.
Vulcanizing agent is DCP；Stabilizer is magnesia；Tackifier are coumarone indene resin.
The preparation method of conductive rubber provided in this embodiment includes the following steps：
(1) composite coupler is dispersed in the absolute ethyl alcohol of 3 times of volumes, obtains composite coupler solution；
(2) mass fraction is pressed, conductive metal powder and electric conductivity phenol-formaldehyde resin powder are added in batch mixer, with 300r/min
Rotating speed be sufficiently mixed uniformly, then into batch mixer be added composite coupler solution, with 80 DEG C of temperature continue mix 4min,
Obtain composite conductive powder；
(3) composite conductive powder and silicon rubber that upper step obtains are added in mixer together, are kneaded 15min, then
It puts into tackifier and stabilizer continues mixing 20min, then vulcanizing agent is added in mixer, it is thin 6 times logical after mixing；
(4) it by after the sizing material bottom sheet of upper step, is sent on vulcanizing press, with 150 DEG C of temperature vulcanizing treatment 2h, obtains
Required conductive rubber.
Embodiment 2
A kind of weather-proof conductive rubber of high stability, according to mass fraction, conductive rubber includes following components：Silicon rubber 40
Part, 25 parts of conductive metal powder, 70 parts of electric conductivity phenol-formaldehyde resin powder, 5 parts of composite coupler, 1.8 parts of vulcanizing agent, 4 parts of stabilizer, increasing
4 parts of stick.
In the present embodiment, the preparation method of electric conductivity phenol-formaldehyde resin powder is as follows：Lignocellulosic through peracid treatment and is had
After the processing of machine flux, porous cellulose is obtained, porous cellulose is protected in helium and the catalysis of cobalt class compound catalyst is made
Under, porous graphene is obtained through high-temperature process；Then according to 30:7:1 ratio is by phenolic resin, porous graphene and surface
Activating agent, which is added in reaction kettle, to be mixed, disperses, required electric conductivity phenolic resin, the reaction temperature wherein in reaction kettle is obtained by the reaction
Degree is 95 DEG C；Electric conductivity phenolic resin is crushed to 500 mesh, obtains required electric conductivity phenol-formaldehyde resin powder.Wherein, surfactant
For fatty acid sorbitan.
In the present embodiment, silicon rubber is methyl vinyl silicone rubber；Conductive metal powder is wicker copper conducting powder.
Composite coupler is the mixing of amino silicane coupling agent, epoxy silane coupling and azido silanes coupling agent
The mass ratio of object, three is 2:1:1.
Vulcanizing agent is TDDS；Stabilizer is magnesia；Tackifier are polybutadiene.
The preparation method of conductive rubber provided in this embodiment includes the following steps：
(1) composite coupler is dispersed in the absolute ethyl alcohol of 4 times of volumes, obtains composite coupler solution；
(2) mass fraction is pressed, conductive metal powder and electric conductivity phenol-formaldehyde resin powder are added in batch mixer, with 400r/min
Rotating speed be sufficiently mixed uniformly, then into batch mixer be added composite coupler solution, with 90 DEG C of temperature continue mix 7min,
Obtain composite conductive powder；
(3) composite conductive powder and silicon rubber that upper step obtains are added in mixer together, are kneaded 20min, then
It puts into tackifier and stabilizer continues mixing 30min, then vulcanizing agent is added in mixer, it is thin 10 times logical after mixing；
(4) it by after the sizing material bottom sheet of upper step, is sent on vulcanizing press, with 170 DEG C of temperature vulcanizing treatment 3h, obtains
Required conductive rubber.
Embodiment 3
A kind of weather-proof conductive rubber of high stability, according to mass fraction, conductive rubber includes following components：Silicon rubber 35
Part, 23 parts of conductive metal powder, 65 parts of electric conductivity phenol-formaldehyde resin powder, 4 parts of composite coupler, 1.5 parts of vulcanizing agent, 3.5 parts of stabilizer,
3.5 parts of tackifier.
In the present embodiment, the preparation method of electric conductivity phenol-formaldehyde resin powder is as follows：Lignocellulosic through peracid treatment and is had
After the processing of machine flux, porous cellulose is obtained, porous cellulose is protected in helium and the catalysis of cobalt class compound catalyst is made
Under, porous graphene is obtained through high-temperature process；Then according to 30:7:1 ratio is by phenolic resin, porous graphene and surface
Activating agent, which is added in reaction kettle, to be mixed, disperses, required electric conductivity phenolic resin, the reaction temperature wherein in reaction kettle is obtained by the reaction
Degree is 90 DEG C；Electric conductivity phenolic resin is crushed to 500 mesh, obtains required electric conductivity phenol-formaldehyde resin powder.Wherein, surfactant
For fatty glyceride.
In the present embodiment, silicon rubber is methyl ethylene trifluoro propyl silicon rubber；Conductive metal powder is silver-colored nickel coat conducting powder.
Composite coupler is the mixing of amino silicane coupling agent, epoxy silane coupling and azido silanes coupling agent
The mass ratio of object, three is 2:1:1.
Vulcanizing agent is DCBP；Stabilizer is magnesia；Tackifier are polybutadiene.
The preparation method of conductive rubber provided in this embodiment includes the following steps：
(1) composite coupler is dispersed in the absolute ethyl alcohol of 3 times of volumes, obtains composite coupler solution；
(2) mass fraction is pressed, conductive metal powder and electric conductivity phenol-formaldehyde resin powder are added in batch mixer, with 350r/min
Rotating speed be sufficiently mixed uniformly, then into batch mixer be added composite coupler solution, with 85 DEG C of temperature continue mix 6min,
Obtain composite conductive powder；
(3) composite conductive powder and silicon rubber that upper step obtains are added in mixer together, are kneaded 18min, then
It puts into tackifier and stabilizer continues mixing 25min, then vulcanizing agent is added in mixer, it is thin 8 times logical after mixing；
(4) it by after the sizing material bottom sheet of upper step, is sent on vulcanizing press, with 160 DEG C of temperature vulcanizing treatment 2.5h, obtains
To required conductive rubber.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of weather-proof conductive rubber of high stability, it is characterised in that：According to mass fraction, the conductive rubber includes following
Component：30-40 parts of silicon rubber, 20-25 parts of conductive metal powder, 60-70 parts of electric conductivity phenol-formaldehyde resin powder, 2-5 parts of composite coupler,
1-1.8 parts of vulcanizing agent, 3-4 parts of stabilizer, 3-4 parts of tackifier.
2. a kind of weather-proof conductive rubber of high stability according to claim 1, it is characterised in that：According to mass fraction,
The conductive rubber includes following components：35-37 parts of silicon rubber, 22-23 parts of conductive metal powder, electric conductivity phenol-formaldehyde resin powder 65-
68 parts, 3-4 parts of composite coupler, 1.5-1.7 parts of vulcanizing agent, 3.6-3.8 parts of stabilizer, 3.5-3.7 parts of tackifier.
3. a kind of weather-proof conductive rubber of high stability according to claim 1, it is characterised in that：The electric conductivity phenolic aldehyde
The preparation method of resin-oatmeal is as follows：By lignocellulosic after peracid treatment and organic flux processing, porous cellulose is obtained, it is more
Hole cellulose obtains porous graphene under helium protection and the catalytic action of cobalt class compound catalyst through high-temperature process；
Then according to 30:7:1 ratio by phenolic resin, porous graphene and surfactant be added in reaction kettle mix, disperse,
Required electric conductivity phenolic resin is obtained by the reaction, the wherein reaction temperature in reaction kettle is 80-95 DEG C；By electric conductivity phenol-formaldehyde resin powder
It is broken to 450-500 mesh, obtains required electric conductivity phenol-formaldehyde resin powder.
4. a kind of weather-proof conductive rubber of high stability according to claim 3, it is characterised in that：The surfactant
For fatty glyceride or fatty acid sorbitan.
5. a kind of weather-proof conductive rubber of high stability according to claim 1, it is characterised in that：The silicon rubber is selected from
One kind in methyl silicone rubber, methyl vinyl silicone rubber and methyl ethylene trifluoro propyl silicon rubber；Conductive metal powder is silver
One kind in alclad conducting powder, wicker copper conducting powder, silver-colored nickel coat conducting powder and Yin Bao glass conducting powders.
6. a kind of weather-proof conductive rubber of high stability according to claim 1, it is characterised in that：The composite coupler
Mass ratio for amino silicane coupling agent, the mixture of epoxy silane coupling and azido silanes coupling agent, three is 2:
1:1。
7. a kind of weather-proof conductive rubber of high stability according to claim 1, it is characterised in that：The vulcanizing agent is
DCP, TDDS or DCBP；Stabilizer is magnesia；Tackifier are coumarone indene resin or polybutadiene.
8. a kind of weather-proof conductive rubber of high stability according to claim 1, it is characterised in that：The conductive rubber
Preparation method includes the following steps：
（1）Composite coupler is dispersed in the absolute ethyl alcohol of 3-4 times of volume, obtains composite coupler solution；
（2）By mass fraction, conductive metal powder and electric conductivity phenol-formaldehyde resin powder are added in batch mixer, with 300-400r/min
Rotating speed be sufficiently mixed uniformly, then into batch mixer be added composite coupler solution, with 80-90 DEG C of temperature continue mix 4-
7min obtains composite conductive powder；
（3）Composite conductive powder and silicon rubber that upper step obtains are added in mixer together, 15-20min is kneaded, then throws
Enter tackifier and stabilizer continues mixing 20-30min, then vulcanizing agent is added in mixer, it is thin 6-10 times logical after mixing；
（4）It after the sizing material bottom sheet of upper step, is sent on vulcanizing press, with 150-170 DEG C of temperature vulcanizing treatment 2-3h, obtains
To required conductive rubber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810471252.0A CN108587053A (en) | 2018-05-17 | 2018-05-17 | A kind of weather-proof conductive rubber of high stability |
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| CN201810471252.0A CN108587053A (en) | 2018-05-17 | 2018-05-17 | A kind of weather-proof conductive rubber of high stability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370226A (en) * | 2018-10-24 | 2019-02-22 | 嘉兴市海德姆智能电气有限公司 | A kind of preparation method of electromagnetic shielding material |
| CN110358305A (en) * | 2019-07-10 | 2019-10-22 | 平湖阿莱德实业有限公司 | A kind of powder filled elastomer of nickel plating and preparation method thereof having excellent weather resistance |
| CN113402783A (en) * | 2021-06-25 | 2021-09-17 | 徐州工业职业技术学院 | Preparation method of sheet rubber anti-slip belt for tire |
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|---|---|---|---|---|
| CN102250472A (en) * | 2011-05-18 | 2011-11-23 | 杨福河 | High-performance silicon-based conductive rubber and preparation method thereof |
| CN102604392A (en) * | 2012-02-20 | 2012-07-25 | 深圳德邦界面材料有限公司 | High-performance flame-retardant electroconductive rubber and preparation method thereof |
| CN106916451A (en) * | 2015-12-25 | 2017-07-04 | 北京中石伟业科技无锡有限公司 | A kind of conductive rubber composition and preparation method thereof |
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2018
- 2018-05-17 CN CN201810471252.0A patent/CN108587053A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102250472A (en) * | 2011-05-18 | 2011-11-23 | 杨福河 | High-performance silicon-based conductive rubber and preparation method thereof |
| CN102604392A (en) * | 2012-02-20 | 2012-07-25 | 深圳德邦界面材料有限公司 | High-performance flame-retardant electroconductive rubber and preparation method thereof |
| CN106916451A (en) * | 2015-12-25 | 2017-07-04 | 北京中石伟业科技无锡有限公司 | A kind of conductive rubber composition and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370226A (en) * | 2018-10-24 | 2019-02-22 | 嘉兴市海德姆智能电气有限公司 | A kind of preparation method of electromagnetic shielding material |
| CN110358305A (en) * | 2019-07-10 | 2019-10-22 | 平湖阿莱德实业有限公司 | A kind of powder filled elastomer of nickel plating and preparation method thereof having excellent weather resistance |
| CN110358305B (en) * | 2019-07-10 | 2021-08-24 | 平湖阿莱德实业有限公司 | Nickel-plated powder filled elastomer with excellent weather resistance and preparation method thereof |
| CN113402783A (en) * | 2021-06-25 | 2021-09-17 | 徐州工业职业技术学院 | Preparation method of sheet rubber anti-slip belt for tire |
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Application publication date: 20180928 |