CN103254518A - Electric insulating rubber and fabrication method thereof - Google Patents
Electric insulating rubber and fabrication method thereof Download PDFInfo
- Publication number
- CN103254518A CN103254518A CN2013102292902A CN201310229290A CN103254518A CN 103254518 A CN103254518 A CN 103254518A CN 2013102292902 A CN2013102292902 A CN 2013102292902A CN 201310229290 A CN201310229290 A CN 201310229290A CN 103254518 A CN103254518 A CN 103254518A
- Authority
- CN
- China
- Prior art keywords
- parts
- rubber
- electric insulation
- accelerator
- electric insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Organic Insulating Materials (AREA)
Abstract
The invention belongs to the technical field of rubber, discloses electric insulating rubber and a fabrication method thereof, and aims at providing electric insulating rubber which is good in insulativity and simple in fabrication method. The electric insulating rubber adopts the technical scheme that the electric insulating rubber comprises the following components in parts by weight: 100 parts of EPDM (Ethylene-Propylene-Diene Monomer), 20-30 parts of calcined kaolin, 0.1-0.3 parts of thiofide PZ, 1-2 parts of stearic acid, 30-40 parts of paraffin oil, 5-8 parts of indirect-method zinc oxide, 0.3-0.5 parts of rubber accelerator CZ, 5 parts of liquid EPDM, 15-25 parts of fumed silica, 0.5-1.5 parts of silane coupling agent, 1-2 parts of sulfur and 1-2 parts of rubber accelerator DM. The fabrication method of the electric insulating rubber comprises the following steps of 1) weighing the components, 2) conducting internal mixing by sections, 3) adding sulfur to an open mill for mixing, and outputting sheet rubber, and 4) placing for 4-8h to allow rubber materials to be more uniform.
Description
Technical field
The object of the present invention is to provide a kind of rubber, specifically, is a kind of electric insulation rubber, and the present invention also discloses the making method of this electric insulation rubber, belongs to the rubber technology field.
Background technology
Electro-insulating rubber in the market mainly is ethylene-propylene rubber(EPR), and the terpolymer EP rubber main chain is made up of the stable hydrocarbon of chemical stabilization, only contains unsaturated double-bond in side chain, so belong to kind of a saturation type rubber basically.Because nonpolarity substituting group in the molecular structure, intermolecular internal cohesive energy is low, so molecular chain can keep kindliness in wide temperature range.Can be used as the component of tire sidewall, adhesive tape and the inner tube of a tyre and automobile, can also make electric wire, cable sheathing and high pressure, ultra-high voltage insulating material.Also can make light goods such as rubber overshoes, sanitary product,
It is good inadequately that but electro-insulating rubber in the market exists insulativity, and problem such as be corroded easily, and complicate fabrication process have certain harm to human body and environment.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of good insulating, simple electric insulation rubber of making method and preparation method thereof.
Last technical scheme of the present invention is such: this electric insulation rubber is made of following components by part by weight: 100 parts of Ethylene Propylene Terpolymer, 20～30 parts of calcined kaolins, 0.1～0.3 part of thiofide PZ, 1～2 part of stearic acid, 30～40 parts of paraffin oils, 5～8 parts of indirect process zinc oxides, 0.3～0.5 part of rubber accelerator CZ, 15～25 parts of thermal silicas, liquid EPDM5 part～15 parts, 0.5～1.5 part of silane coupling agent, 1～2 part in sulphur, 1～2 part of rubber accelerator DM.
Above-mentioned electric insulation rubber is made of following components by part by weight: 100 parts of Ethylene Propylene Terpolymer, 22～28 parts of calcined kaolins, 0.2 part of thiofide PZ, 1.5 parts of stearic acid, 324～36 parts of paraffin oils, 6～7 parts of indirect process zinc oxides, 0.4 part of rubber accelerator CZ, 18～22 parts of thermal silicas, liquid EPDM5 part～15 parts, 1 part of silane coupling agent, 1.5 parts in sulphur, 1.5 parts of rubber accelerator DM.
Above-mentioned electric insulation rubber, the kinematic viscosity of described paraffin oil are 10 ~ 15mm2/s; Described Ethylene Propylene Terpolymer is selected Tao Shi EPDM4520 for use; Described liquid EPDM selects lion chemistry T67 for use.
In order to prepare electric insulation rubber provided by the present invention, the present invention also provides the preparation method of this electric insulation rubber: this electric insulation rubber and preparation method thereof comprises the steps: successively
1) takes by weighing each component;
2) segmentation banburying
At first add Ethylene Propylene Terpolymer successively to Banbury mixer, thermal silica, calcined kaolin, the paraffin oil of 50% quality, silane coupling agent, at 55 ~ 65 ℃, air pressure 0.5～0.8Mpa behind the banburying 3min, adds zinc oxide again, stearic acid and paraffin oil be at air pressure 0.5～0.8Mpa, 75-85 ℃ of binder removal behind the banburying 10min again.
3) mill adds the mixing operation slice of sulphur
With step 2) the glue input mill of discharging from Banbury mixer, along roller from a left side and right sulphur, the thiofide PZ of evenly slowly adding, rubber accelerator CZ, rubber accelerator DM, spin 5～8 times, mixing even, adjust roll spacing 0.8mm～three times following sheets of 1mm spacing thin-pass again.
4) park and made sizing material further even in 4 ~ 8 hours.
Compared with prior art, the present invention has following advantage:
Save unnecessary part in the EPDM cooperation in this prescription, simplified formulation composition, met the production demand, reduced production cost.Selecting materials meets ROHS, PAHS standard, does not use the raw material that contains the compound of violating a ban, compliance with environmental protection requirements.
One, rubber is selected
1.1 Tao Shi EPDM4520, liquid EPDM selects lion chemistry T67 for use, with respect to traditional solid-state EP (D) M, liquid EP (D) M has manifested its advantage than low viscosity at process zone, and traditional softening agent can not, the EP of liquid (D) M simultaneously and solid-state EP (D) M main body take place crosslinked, like this can the obviously generation of minimizing organic volatile compound before crosslinked.And the influence that other performance also is subjected to seldom is even not influenced, and it effectively reduces the sizing material mooney viscosity in actual applications, makes sizing material have more flowability, is fit to baroque various product.Increase the insulativity of material, and physicals, can and can not reduce the material gum content as the tenderizer use yet, but liquid EP (D) M processed complex, and price is more expensive, if use separately, can increase certain production cost, the application mixes use by repetition test with solid-state EP (D) M and liquid EP (D) M, save cost, and the product performance of gained are good.
1.2 vulcanization system: this prescription is selected the semi effcient vulcanization system for use, and the gained cross-linked rubber had both had an amount of polysulfidic bond, and an amount of single, double sulfur-crosslinked key is also arranged, and makes it both have the better dynamic performance, and medium heatproof oxidation performance energy is arranged again.Arrange in pairs or groups sulfenamide type accelerators CZ and acidic-type accelerator TMTM and usefulness form the sulphenamide vulcanization system of activation again, and sulfuration increases inductive phase, and anti-scorch effect is obvious, has avoided the scorching phenomenon in the sizing material course of processing, also is conducive to the preservation of sizing material.
1.3 reinforcement, infill system: do not add reinforcing and filling system because the EPDM that selects for use belongs to amorphism rubber, vulcanizating glue physical performance is low, does not have practical value.This prescription has selected for use aerosil to make strengthening agent, because the aerosil internal structure almost completely is to arrange silicic acid tridimensional network closely, this structure makes the particle water absorbability little, and surface adsorption is strong, and reinforcement is good.And the structure of precipitated silica is interior except the silicic acid that generates three-dimensional structure, and also the remaining silicic acid that more two-dirnentional structure is arranged is dredged the structure pine, and easily moisture absorption meeting reduction reinforcing effect reduces insulativity.Calcined kaolin is made weighting agent: kaolin divides calcined kaolin and water-washed kaoline.Calcined kaolin is compared with calcined kaolin not, low temperature calcination is kaolinic to be reduced in conjunction with water-content, and silicon-dioxide and alchlor content all increase, and active site increases, structure changes, particle diameter is less and even, and high-temperature calcination kaolin has very great help to the raising of small product size resistivity, is equipped with silane coupling agent again and carries out surface modification, improve dispersiveness and the surperficial affinity of filler, improve processing fluidity, improve the shock elasticity of rubber, fall low-heat-generation etc.
1.4 preventing aging system: this prescription saves this system according to rerum natura and the service requirements event of EPDM.
1.5 system is softened in plasticising: select for use volatility little in this prescription, the flash-point height, the paraffin oil that viscosity is high is made tenderizer.
2, electric insulation rubber production technology provided by the invention is stable, and the efficient height is as low Mooney, time of scorch is moderate, vulcanization rate is fast.
3, technical scheme provided by the invention even the long-term contact of human body is harmless, does not produce obnoxious flavour and reaches European Union's requirement standard in the sulfidation, by multinomial European Union environmental protection authentication ROHS, PAHS, normal hexane discharging etc.
4, electric insulation rubber electric property provided by the invention and physicals excellence, volume specific resistance 1016, disruptive strength＞25KV/mm, tensile yield＞600%, tensile strength at yield＞10Mpa, tear strength＞20KN/m.
Embodiment
Below in conjunction with embodiment; claim of the present invention is described in further detail; but do not constitute any limitation of the invention, the modification of the limited number of time that anyone makes in claim scope of the present invention is still in claim protection domain of the present invention.
Embodiment 1
A kind of electric insulation rubber is made of following component: Tao Shi EPDM4520 100Kg, calcined kaolin 30Kg, thiofide PZ 0.1Kg, stearic acid 2Kg, kinematic viscosity is the paraffin oil 30Kg of 10mm2/s, indirect process zinc oxide 8Kg, rubber accelerator CZ 0.3Kg, liquid EPDM 5Kg, thermal silica 25Kg, silane coupling agent 0.5Kg, sulphur 2Kg, rubber accelerator DM 1Kg.
Its making method
1) takes by weighing each component;
2) segmentation banburying
At first add successively to Banbury mixer: Tao Shi EPDM4520, liquid EPDM, thermal silica, calcined kaolin, the paraffin oil of 50% quality, silane coupling agent, at 55 ~ 65 ℃, air pressure 0.5～0.8Mpa, behind the banburying 3min, add zinc oxide again, stearic acid and paraffin oil be at air pressure 0.5～0.8Mpa, 75-85 ℃ of binder removal behind the banburying 10min again.
3) mill adds the mixing operation slice of sulphur
With step 2) the glue input mill of discharging from Banbury mixer, along roller from a left side and right sulphur, the thiofide PZ of evenly slowly adding, rubber accelerator CZ, rubber accelerator DM, spin 5～8 times, mixing even, adjust roll spacing 0.8mm～three times following sheets of 1mm spacing thin-pass again.
5) park and made sizing material further even in 4 ~ 8 hours.
Embodiment 2
A kind of electric insulation rubber is made of following component: Tao Shi EPDM4520 100Kg, calcined kaolin 20Kg, thiofide PZ 0.3Kg, stearic acid 1Kg, kinematic viscosity is the paraffin oil 40Kg of 15mm2/s, indirect process zinc oxide 5Kg, rubber accelerator CZ 0.5Kg, thermal silica 15Kg, lion chemistry T67 5Kg, silane coupling agent 0.5Kg, sulphur 2Kg, rubber accelerator DM 1Kg.
The preparation method is with embodiment 1
Embodiment 3
A kind of electric insulation rubber is made of following component: Tao Shi EPDM4520 100Kg, calcined kaolin 24Kg, thiofide PZ 0.3Kg, stearic acid 1.5Kg, kinematic viscosity is the paraffin oil 35Kg of 7mm2/s, indirect process zinc oxide 7Kg, rubber accelerator CZ 0.3g, thermal silica 15Kg, liquid EPDM 10Kg, silane coupling agent 1.5Kg, sulphur 1.5Kg, rubber accelerator DM 0.5Kg.
The preparation method is with embodiment 2
Embodiment 4
A kind of electric insulation rubber is made of following component: Tao Shi EPDM4520 100Kg, calcined kaolin 25Kg, thiofide PZ 0.2Kg, stearic acid 1.5Kg, kinematic viscosity is the paraffin oil 35Kg of 9mm2/s, indirect process zinc oxide 6Kg, rubber accelerator CZ 0.4Kg, thermal silica 20Kg, lion chemistry T67 7Kg, silane coupling agent 1Kg, sulphur 1.5Kg, rubber accelerator DM 1.5Kg.
The preparation method is with embodiment 1.
Claims (6)
1. an electric insulation rubber is characterized in that, this electric insulation rubber is made of following components by part by weight: 100 parts of Ethylene Propylene Terpolymer, 20～30 parts of calcined kaolins, 0.1～0.3 part of thiofide PZ, 1～2 part of stearic acid, 30～40 parts of paraffin oils, 5～8 parts of indirect process zinc oxides, 0.3～0.5 part of rubber accelerator CZ, 15～25 parts of thermal silicas, 5 parts～15 parts of liquid EPDM, 0.5～1.5 part of silane coupling agent, 1～2 part in sulphur, 1～2 part of rubber accelerator DM.
2. electric insulation rubber according to claim 1 is characterized in that, this electric insulation rubber is made of following components by part by weight: 100 parts of Ethylene Propylene Terpolymer, 22～28 parts of calcined kaolins, 0.2 part of thiofide PZ, 1.5 parts of stearic acid, 32～36 parts of paraffin oils, 6～7 parts of indirect process zinc oxides, 0.4 part of rubber accelerator CZ, 18～22 parts of thermal silicas, 5 parts～15 parts of liquid EPDM, 1 part of silane coupling agent, 1.5 parts in sulphur, 1.5 parts of rubber accelerator DM.
3. electric insulation rubber according to claim 1 is characterized in that, the kinematic viscosity of described paraffin oil is 10 ~ 15mm2/s.
4. want 1 described electric insulation rubber according to right, it is characterized in that described Ethylene Propylene Terpolymer is selected Tao Shi EPDM4520 for use.
5. want 1 described electric insulation rubber according to right, it is characterized in that, described liquid EPDM selects lion chemistry T67 for use.
6. claim 1 or 2 described preparation methods is characterized in that, comprise the steps: successively
1) takes by weighing each component by claim 1 or 2 described weight parts;
2) segmentation banburying
At first add Ethylene Propylene Terpolymer successively to Banbury mixer, liquid EPDM, thermal silica, calcined kaolin, the paraffin oil of 50% quality, silane coupling agent, at 55 ~ 65 ℃, air pressure 0.5～0.8Mpa, behind the banburying 3min, add zinc oxide again, stearic acid and paraffin oil be at air pressure 0.5～0.8Mpa, 75-85 ℃ of binder removal behind the banburying 10min again.
3) mill adds the mixing operation slice of sulphur
With step 2) the glue input mill of discharging from Banbury mixer, along roller from a left side and right sulphur, the thiofide PZ of evenly slowly adding, rubber accelerator CZ, rubber accelerator DM, spin 5～8 times, mixing even, adjust roll spacing 0.8mm～three times following sheets of 1mm spacing thin-pass again.
4) park and made sizing material further even in 4 ~ 8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229290.2A CN103254518B (en) | 2013-06-08 | 2013-06-08 | A kind of electric insulation rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229290.2A CN103254518B (en) | 2013-06-08 | 2013-06-08 | A kind of electric insulation rubber and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103254518A true CN103254518A (en) | 2013-08-21 |
| CN103254518B CN103254518B (en) | 2016-04-13 |
Family
ID=48958754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310229290.2A Active CN103254518B (en) | 2013-06-08 | 2013-06-08 | A kind of electric insulation rubber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103254518B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105175902A (en) * | 2015-07-15 | 2015-12-23 | 繁昌县菲德通讯材料设计有限公司 | High-strength wear-resistant tear-resistant cable |
| CN105315562A (en) * | 2015-10-21 | 2016-02-10 | 山东太平洋橡缆股份有限公司 | Composite insulating material for coal mine cable |
| CN106700278A (en) * | 2016-11-29 | 2017-05-24 | 芜湖集拓橡胶技术有限公司 | Formula of ethylene-propylene-diene-terpolymer rubber for high-volume resistivity automobile |
| CN106751025A (en) * | 2016-12-13 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of salt bath vulcanization ethylene propylene diene rubber cable sheath material |
| CN106751014A (en) * | 2016-11-29 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of electro-insulating rubber formula |
| CN107043493A (en) * | 2017-04-07 | 2017-08-15 | 安徽省无为县经纬电缆附件有限公司 | A kind of heating cable protective cover material of good heat preservation performance |
| CN107383635A (en) * | 2017-08-11 | 2017-11-24 | 安徽润康橡塑科技股份有限公司 | A kind of rubber catheter lock ring |
| CN108102232A (en) * | 2018-03-02 | 2018-06-01 | 合肥欧仕嘉机电设备有限公司 | A kind of anti-aging electric insulation rubber |
| CN109354780A (en) * | 2018-09-29 | 2019-02-19 | 芜湖集拓橡胶技术有限公司 | Rubber is worn in a kind of resistance |
| CN110819011A (en) * | 2019-11-08 | 2020-02-21 | 株洲凯创技术有限公司 | Ethylene-propylene-diene monomer insulating rubber material and preparation method thereof |
| CN110964230A (en) * | 2019-12-19 | 2020-04-07 | 漳州市龙华矿产有限公司 | Fine kaolin processing method |
| CN112375276A (en) * | 2020-10-28 | 2021-02-19 | 诺博橡胶制品有限公司 | High-resistance matte sealing strip and preparation method thereof |
| CN114806028A (en) * | 2022-05-06 | 2022-07-29 | 国网智能电网研究院有限公司 | Ethylene propylene diene monomer composite material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101014659A (en) * | 2004-08-11 | 2007-08-08 | 陶氏康宁东丽株式会社 | Rubber composition for vibration-proof or quake-isolation, method for preparing the composition, rubber product for vibration-proof or quake-isolation |
| CN102050999A (en) * | 2009-10-27 | 2011-05-11 | 北京科力恒久电力技术股份有限公司 | Insulation rubber for preparing cable joint and preparation method thereof |
| CN102532726A (en) * | 2011-12-14 | 2012-07-04 | 上海特缆电工科技有限公司 | Non-toxic and odorless ethylene propylene rubber cable material for submersible motor and preparation method thereof |
| CN102563237A (en) * | 2011-12-26 | 2012-07-11 | 青岛三祥科技股份有限公司 | Hydraulic-controlled clutch pipe and production process thereof |
-
2013
- 2013-06-08 CN CN201310229290.2A patent/CN103254518B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101014659A (en) * | 2004-08-11 | 2007-08-08 | 陶氏康宁东丽株式会社 | Rubber composition for vibration-proof or quake-isolation, method for preparing the composition, rubber product for vibration-proof or quake-isolation |
| CN102050999A (en) * | 2009-10-27 | 2011-05-11 | 北京科力恒久电力技术股份有限公司 | Insulation rubber for preparing cable joint and preparation method thereof |
| CN102532726A (en) * | 2011-12-14 | 2012-07-04 | 上海特缆电工科技有限公司 | Non-toxic and odorless ethylene propylene rubber cable material for submersible motor and preparation method thereof |
| CN102563237A (en) * | 2011-12-26 | 2012-07-11 | 青岛三祥科技股份有限公司 | Hydraulic-controlled clutch pipe and production process thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105175902A (en) * | 2015-07-15 | 2015-12-23 | 繁昌县菲德通讯材料设计有限公司 | High-strength wear-resistant tear-resistant cable |
| CN105315562A (en) * | 2015-10-21 | 2016-02-10 | 山东太平洋橡缆股份有限公司 | Composite insulating material for coal mine cable |
| CN106700278A (en) * | 2016-11-29 | 2017-05-24 | 芜湖集拓橡胶技术有限公司 | Formula of ethylene-propylene-diene-terpolymer rubber for high-volume resistivity automobile |
| CN106751014A (en) * | 2016-11-29 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of electro-insulating rubber formula |
| CN106751025A (en) * | 2016-12-13 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of salt bath vulcanization ethylene propylene diene rubber cable sheath material |
| CN107043493A (en) * | 2017-04-07 | 2017-08-15 | 安徽省无为县经纬电缆附件有限公司 | A kind of heating cable protective cover material of good heat preservation performance |
| CN107383635A (en) * | 2017-08-11 | 2017-11-24 | 安徽润康橡塑科技股份有限公司 | A kind of rubber catheter lock ring |
| CN108102232A (en) * | 2018-03-02 | 2018-06-01 | 合肥欧仕嘉机电设备有限公司 | A kind of anti-aging electric insulation rubber |
| CN109354780A (en) * | 2018-09-29 | 2019-02-19 | 芜湖集拓橡胶技术有限公司 | Rubber is worn in a kind of resistance |
| CN110819011A (en) * | 2019-11-08 | 2020-02-21 | 株洲凯创技术有限公司 | Ethylene-propylene-diene monomer insulating rubber material and preparation method thereof |
| CN110964230A (en) * | 2019-12-19 | 2020-04-07 | 漳州市龙华矿产有限公司 | Fine kaolin processing method |
| CN112375276A (en) * | 2020-10-28 | 2021-02-19 | 诺博橡胶制品有限公司 | High-resistance matte sealing strip and preparation method thereof |
| CN114806028A (en) * | 2022-05-06 | 2022-07-29 | 国网智能电网研究院有限公司 | Ethylene propylene diene monomer composite material and preparation method and application thereof |
| CN114806028B (en) * | 2022-05-06 | 2024-02-13 | 国网智能电网研究院有限公司 | Ethylene propylene diene monomer composite material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103254518B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103254518B (en) | A kind of electric insulation rubber and preparation method thereof | |
| KR101668776B1 (en) | Rubber formulations including graphenic carbon particles | |
| KR101462426B1 (en) | Formulation and Process of Highly Thermal Conducting Rubber Composite using Carbon Nanotubes for Bladder | |
| CN102702624A (en) | Ternary ethylenepropylene insulating sizing material for 35KV high-voltage cable accessory and preparation method for ternary ethylenepropylene insulating sizing material | |
| CN102382377A (en) | Medium-voltage ethylene propylene rubber insulating material and preparation method thereof | |
| CN103435917B (en) | Colored terpolymer EP rubber of high rigidity adapting to microwave vulcanization and preparation method thereof | |
| CN109456542A (en) | A kind of rubber insulation material | |
| WO2022073489A1 (en) | Semi-steel base rubber material using carbon nano tube composite masterbatch and preparation method therefor | |
| CN105924705A (en) | Highly filled white carbon black tread rubber having good electric and thermal conductivity and used for pneumatic tire | |
| CN108059772A (en) | A kind of low smell, it is low distribute, high heat-resisting polypropylene composite material and preparation method thereof | |
| CN110157104A (en) | A kind of high temperature resistant ethylene propylene diene rubber | |
| CN105199245A (en) | Anti-aging insulating rubber material and preparation method thereof | |
| CN103172931A (en) | Formula of modified polypropylene composite material with low shrinking percentage and production method thereof | |
| CN103436037B (en) | A kind of preparation method of fluorosilicone rubber/silicon rubber blend rubber for automotive high-voltage ignition wire | |
| CN105255017A (en) | Ethylene-propylene rubber insulating material for medium voltage power cable and preparation method thereof | |
| KR20120097592A (en) | Rubber compositions for tire tread comprising metal oxide | |
| CN107337859A (en) | Oil-immersed pump electric power cable oil resistant EP rubbers sheath material and preparation method thereof | |
| CN107033519A (en) | It is a kind of for insulating materials of cable and preparation method thereof | |
| CN108084522A (en) | A kind of high intensity butadiene-styrene rubber and preparation method thereof | |
| CN103483705A (en) | Inner liner compound for truck tire | |
| KR100760823B1 (en) | Rubber composition for tire tread | |
| JP2005053944A (en) | Rubber composition for sidewall and tire using the same | |
| KR101196308B1 (en) | Tire inner liner rubber composition comprising liquid phase polybutene for improving anti-air permeability | |
| CN107383643A (en) | Oil-immersed pump electric power cable oil resistant ethylene propylene rubber insulation material and preparation method thereof | |
| KR101398712B1 (en) | Rubber composition for tire-tread |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |