CN104893056A - Production process of conductive rubber - Google Patents
Production process of conductive rubber Download PDFInfo
- Publication number
- CN104893056A CN104893056A CN201510280054.2A CN201510280054A CN104893056A CN 104893056 A CN104893056 A CN 104893056A CN 201510280054 A CN201510280054 A CN 201510280054A CN 104893056 A CN104893056 A CN 104893056A
- Authority
- CN
- China
- Prior art keywords
- mixing
- rubber
- solvent
- hexane
- conductive
- 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.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a production process of conductive rubber. The production process comprises the following steps of adding vulcanized rubber, an accelerant and an anti-aging agent into a rubber mixing machine to mix according to the mass percentage, and adding a conductive material after uniformly mixing to obtain uniformly-mixed rubber; and respectively adding zinc oxide and carbon fibers into the rubber, and mixing to obtain conductive rubber. The production process is simple in operation, high in work efficiency and capable of reducing the cost and also improving the tensile property and elasticity of the rubber; and the carbon fibers are added, so that the conductivity of the conductive rubber is further improved.
Description
Technical field
The present invention relates to rubber materials, particularly a kind of conductive rubber production technique.
Background technology
Conductive rubber, as the one in conductive polymer composites, is be that matrix adds that conductive filler material is made with rubber elastomer, has both remained the elasticity of base rubber, had again the electroconductibility of conductive filler material.Because material in very large range can regulate electricity and the mechanical property of material according to requirements, the advantages such as quality is light, easily machine-shaping, cost are low, technology maturation, thus obtained in the last few years and developed rapidly, become a kind of new function material, be widely used for space flight, aircraft manufacturing and machinery manufacturing industry, medical science, electric and electronic industry.In recent years, along with the development of electronic industry, conductive rubber starts again to be widely used in making elastomeric switch, contact rubber, pressure transmitter, burning material electric wire core and electromagnetic wave shielding sealing material etc., becomes the critical function material supporting high-tech product basis.But the material cost making conductive rubber is high, and conductivity is unsatisfactory.
Silicon rubber has excellent thermotolerance, winter hardiness, dielectricity, the performances such as resistance to ozone and resistance to atmospheric aging, the performance that silicon rubber is given prominence to is that use temperature is broad, can use at-60 DEG C (or lower temperature) to+250 DEG C (or higher temperature), but the mechanical propertys such as the tensile strength of silicon rubber and tearing toughness are poor, its physical and mechanical properties is not as good as most of synthetic rubber at normal temperatures, and except nitrile silicon, outside trifluoropropyl siloxane, general silicon rubber oil resistant, solvent resistance is not good enough, therefore silicon rubber should not be used for the occasion of usual terms, but be highly suitable for many specific occasions.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of conductive rubber production technique, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the invention provides following technical scheme: a kind of conductive rubber production technique, is characterized in that, comprises following processing step:
1) according to mass percent, vulcanized rubber, promotor and anti-aging agent being put into rubber mixing machine carries out mixing, and the mixing action time is 25-45 minute, mixing evenly after add electro-conductive material, again carry out obtaining mixing uniform sizing material in mixing 20 minutes;
2) in sizing material obtained above, put into zinc oxide respectively and carbon fiber carries out mixing, the mixing action time is 30 minutes;
3) ethene is with gas-phase feed, propylene with liquid phase feeding, hexane as solvent and catalyst mix completely after, continue mixing, the mixing action time is obtain electroconductive glue materials in 50 minutes;
4) reaction takes five reactors and carries out serial operation, and only first step reactor adds solvent, and second and third order reaction still adds charging and catalyzer, and selective reaction temperature range is 40 ~ 50 DEG C, and reaction pressure is 7bar, and the reaction times is 10-15min.
5) pressure utilizing polyreaction workshop section to provide carries out twice flash distillation, is respectively high pressure flash and low pressure flash, unreacted monomer and part hexane solvent is spun off.
6) in step 5) in remove monomer, be dissolved with in the solvent of ethylene-propylene rubber(EPR) product, add propyl carbinol (or gamma-butyrolactone), propyl carbinol and hexane mass ratio are 2.57: 1 (gamma-butyrolactone and hexane mass ratio are 1.5: 1), change the polarity of solvent, ethylene-propylene rubber(EPR) is separated out from solvent, then uses Screw Extrusion device to be extruded by ethylene-propylene rubber(EPR), obtain product.
Preferably, the mixed solvent removing product in step 6) enters in rectifying tower and is separated after preheating, highly purified hexane after separation is returned reactor to continue to use as solvent cycle, propyl carbinol (or gamma-butyrolactone) at the bottom of tower is after lowering the temperature through the charging of the charging of preheating flash tank and rectifying tower, loop back product and obtain workshop section, continue to use.
Preferably, step 2) in mixing temperature be 80-120 degree, temperature mixing in step 3) is 100-130 degree.
The beneficial effect of above technical scheme is adopted to be: the preparation technology of conductive rubber strip of the present invention, simple to operate, working efficiency is high, vulcanized rubber is adopted to replace original silicon rubber, reduce cost, add tensile property and the elasticity of rubber simultaneously, and add the conductivity that carbon fiber further increases conductive rubber.
Embodiment
The following detailed description of the preferred embodiment of the present invention.
Embodiment: a kind of conductive rubber production technique, comprises following processing step:
1) according to mass percent, vulcanized rubber, promotor and anti-aging agent being put into rubber mixing machine carries out mixing, and the mixing action time is 30 minutes, mixing evenly after add electro-conductive material, again carry out obtaining mixing uniform sizing material in mixing 20 minutes;
2) in sizing material obtained above, put into zinc oxide respectively and carbon fiber carries out mixing, the mixing action time is 30 minutes;
3) ethene is with gas-phase feed, propylene with liquid phase feeding, hexane as solvent and catalyst mix completely after, continue mixing, the mixing action time is obtain electroconductive glue materials in 50 minutes;
4) reaction takes five reactors and carries out serial operation, and only first step reactor adds solvent, and second and third order reaction still adds charging and catalyzer, and selective reaction temperature range is 30 DEG C, and reaction pressure is 7bar, and the reaction times is 12min.
5) pressure utilizing polyreaction workshop section to provide carries out twice flash distillation, is respectively high pressure flash and low pressure flash, unreacted monomer and part hexane solvent is spun off.
6) in step 5) in remove monomer, be dissolved with in the solvent of ethylene-propylene rubber(EPR) product, add propyl carbinol (or gamma-butyrolactone), propyl carbinol and hexane mass ratio are 2.57: 1 (gamma-butyrolactone and hexane mass ratio are 1.5: 1), change the polarity of solvent, ethylene-propylene rubber(EPR) is separated out from solvent, then uses Screw Extrusion device to be extruded by ethylene-propylene rubber(EPR), obtain product.
The mixed solvent removing product in step 6) enters in rectifying tower and is separated after preheating, highly purified hexane after separation is returned reactor to continue to use as solvent cycle, propyl carbinol (or gamma-butyrolactone) at the bottom of tower is after lowering the temperature through the charging of the charging of preheating flash tank and rectifying tower, loop back product and obtain workshop section, continue to use.
Step 2) in mixing temperature be 100 degree, temperature mixing in step 3) is 120 degree.
The beneficial effect of above technical scheme is adopted to be: the preparation technology of conductive rubber strip of the present invention, simple to operate, working efficiency is high, vulcanized rubber is adopted to replace original silicon rubber, reduce cost, add tensile property and the elasticity of rubber simultaneously, and add the conductivity that carbon fiber further increases conductive rubber.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (3)
1. a conductive rubber production technique, is characterized in that, comprises following processing step:
1) according to mass percent, vulcanized rubber, promotor and anti-aging agent being put into rubber mixing machine carries out mixing, and the mixing action time is 25-45 minute, mixing evenly after add electro-conductive material, again carry out obtaining mixing uniform sizing material in mixing 20 minutes;
2) in sizing material obtained above, put into zinc oxide respectively and carbon fiber carries out mixing, the mixing action time is 30 minutes;
3) ethene is with gas-phase feed, propylene with liquid phase feeding, hexane as solvent and catalyst mix completely after, continue mixing, the mixing action time is obtain electroconductive glue materials in 50 minutes;
4) reaction takes five reactors and carries out serial operation, and only first step reactor adds solvent, and second and third order reaction still adds charging and catalyzer, and selective reaction temperature range is 40 ~ 50 DEG C, and reaction pressure is 7bar, and the reaction times is 10-15min;
5) pressure utilizing polyreaction workshop section to provide carries out twice flash distillation, is respectively high pressure flash and low pressure flash, unreacted monomer and part hexane solvent is spun off;
6) in step 5) in remove monomer, be dissolved with in the solvent of ethylene-propylene rubber(EPR) product, add propyl carbinol (or gamma-butyrolactone), propyl carbinol and hexane mass ratio are 2.57: 1 (gamma-butyrolactone and hexane mass ratio are 1.5: 1), change the polarity of solvent, ethylene-propylene rubber(EPR) is separated out from solvent, then uses Screw Extrusion device to be extruded by ethylene-propylene rubber(EPR), obtain product.
2. conductive rubber production technique according to claim 1, it is characterized in that, the mixed solvent removing product in step 6) enters in rectifying tower and is separated after preheating, highly purified hexane after separation is returned reactor to continue to use as solvent cycle, propyl carbinol (or gamma-butyrolactone) at the bottom of tower is after lowering the temperature through the charging of the charging of preheating flash tank and rectifying tower, loop back product and obtain workshop section, continue to use.
3. conductive rubber production technique according to claim 1, is characterized in that, step 2) in mixing temperature be 80-120 degree, temperature mixing in step 3) is 100-130 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280054.2A CN104893056A (en) | 2015-05-28 | 2015-05-28 | Production process of conductive rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280054.2A CN104893056A (en) | 2015-05-28 | 2015-05-28 | Production process of conductive rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104893056A true CN104893056A (en) | 2015-09-09 |
Family
ID=54026047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510280054.2A Pending CN104893056A (en) | 2015-05-28 | 2015-05-28 | Production process of conductive rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104893056A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07126439A (en) * | 1993-11-05 | 1995-05-16 | Nok Corp | Electrically conductive rubber composition |
| CN1470559A (en) * | 2003-06-20 | 2004-01-28 | 山东大学 | Silicon rubber/conductive ethylene propylene terpolymer and its preparing method |
| CN101451005A (en) * | 2007-11-30 | 2009-06-10 | 王极超 | Antishock insulation rubber member for high-tension cable |
| CN103289212A (en) * | 2013-05-22 | 2013-09-11 | 吴江市德佐日用化学品有限公司 | Conductive rubber with flame retardation |
| CN103951862A (en) * | 2014-04-11 | 2014-07-30 | 苏州市依星橡塑有限公司 | Preparation technology for conductive rubber strips |
| CN104031196A (en) * | 2014-04-17 | 2014-09-10 | 王渊朴 | Production process for ethylene propylene rubber |
-
2015
- 2015-05-28 CN CN201510280054.2A patent/CN104893056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07126439A (en) * | 1993-11-05 | 1995-05-16 | Nok Corp | Electrically conductive rubber composition |
| CN1470559A (en) * | 2003-06-20 | 2004-01-28 | 山东大学 | Silicon rubber/conductive ethylene propylene terpolymer and its preparing method |
| CN101451005A (en) * | 2007-11-30 | 2009-06-10 | 王极超 | Antishock insulation rubber member for high-tension cable |
| CN103289212A (en) * | 2013-05-22 | 2013-09-11 | 吴江市德佐日用化学品有限公司 | Conductive rubber with flame retardation |
| CN103951862A (en) * | 2014-04-11 | 2014-07-30 | 苏州市依星橡塑有限公司 | Preparation technology for conductive rubber strips |
| CN104031196A (en) * | 2014-04-17 | 2014-09-10 | 王渊朴 | Production process for ethylene propylene rubber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102243913B (en) | Anti-static silicon rubber sleeve and preparation method thereof | |
| CN102417617B (en) | Core rubber for flame-retardant steel wire rope core conveying belt and preparation method thereof | |
| CN103408948B (en) | A kind of rubber combination and application thereof | |
| CN104788876A (en) | Fiber reinforced thermoplastic elastomer and preparation method thereof | |
| CN103360622B (en) | Rubber heat-resistant activator and preparation method thereof | |
| CN104072998A (en) | Base rubber material of high dielectric constant liquid silicone rubber and application thereof in composition | |
| CN102391565A (en) | Mining rubber sleeve cable insulating material and preparation method thereof | |
| CN108314898A (en) | Conductive rubber composition, conductive rubber and preparation method thereof | |
| CN107799204B (en) | A kind of touch screen graphene conductive film and preparation method thereof | |
| CN104844980A (en) | Nitrile rubber modified polyvinyl chloride jacket material for ageing-resistant communication cable and preparation method of nitrile rubber modified polyvinyl chloride jacket material | |
| CN102206371A (en) | Reclaimed rubber composite material with electromagnetic shielding performance and preparation method thereof | |
| CN104650766A (en) | Reactive adhesive sizing material and preparation process thereof | |
| CN102964648A (en) | Insulation shielding material for mining rubber jacketed cable and preparation method of insulation shielding material | |
| CN103160027A (en) | V-0 fire retardation antistatic polypropylene material and preparation method thereof | |
| CN104893056A (en) | Production process of conductive rubber | |
| CN102617894B (en) | High performance elastomer composition | |
| CN111849172B (en) | Solvent-resistant fluorosilicone rubber sealing strip and preparation method thereof | |
| CN107177193A (en) | A kind of transparent antistatic TPU film and its preparation method and application | |
| CN102746552B (en) | Method for preparing silane self-crosslinking polyolefin insulation material from expired/defective chemical crosslinking polyethylene insulation material | |
| CN105754510A (en) | Electrical insulating tape with high flame retardancy and production method thereof | |
| CN110318107A (en) | A kind of organic conducting fiber and preparation method thereof | |
| CN106832490B (en) | A kind of rubber production technology | |
| CN102120835B (en) | Method for processing high-molecular-weight rare earth butadiene rubber | |
| CN103937114A (en) | Low-cost high-performance insulating rubber material | |
| CN109957179B (en) | 35kV ultra-clean ethylene propylene rubber cable insulating material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |