CN102153756B - Production process and equipment of methyl vinyl silicone rubber - Google Patents
Production process and equipment of methyl vinyl silicone rubber Download PDFInfo
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- CN102153756B CN102153756B CN201110006418.XA CN201110006418A CN102153756B CN 102153756 B CN102153756 B CN 102153756B CN 201110006418 A CN201110006418 A CN 201110006418A CN 102153756 B CN102153756 B CN 102153756B
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- Prior art keywords
- low molecule
- dehydrating kettle
- polymerization
- kettle
- temperature
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 14
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 229920001971 elastomer Polymers 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 23
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- -1 dimethyl siloxane Chemical class 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical group [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 230000005587 bubbling Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 abstract 2
- 239000004568 cement Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- LPUQAYUQRXPFSQ-DFWYDOINSA-M monosodium L-glutamate Chemical compound [Na+].[O-]C(=O)[C@@H](N)CCC(O)=O LPUQAYUQRXPFSQ-DFWYDOINSA-M 0.000 description 1
- 235000013923 monosodium glutamate Nutrition 0.000 description 1
- 239000004223 monosodium glutamate Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Silicon Polymers (AREA)
Abstract
The invention discloses a production process and production equipment of methyl vinyl silicone rubber, which relate to a raw rubber polymerization process. The invention is characterized in that the production equipment of the methyl vinyl silicone rubber consists of a filter, a metering tank, a dehydrating kettle, a metering pump, a preheater, a polymerization cylinder, a low molecule removing device, a nitrogen generator, a vacuum pump, a discharging machine and the like. The filter is connected with the dehydrating kettle through the metering tank, the dehydrating kettle is connected with the preheater through the metering pump; the preheater is connected with the polymerization cylinder by a pipe; the polymerization cylinder is connected with the low molecule removing device, and the low molecule removing device is connected with the discharging machine by a pipe. The production process of the methyl vinyl silicone rubber comprises: metering dimethyl carbonate (DMC) by the filter; and filling the DMC into the dehydrating kettle, adding alkaline cement, end-capping agent and the like in mixing amount, delivering the mixture to the polymerization kettle through a preheater and a feeding pump, performing polymerization at a certain temperature, filling the reaction solution in the low molecule removing device to remove low molecules under vacuum and filling into the discharging machine to generate raw robber.
Description
Technical field
The present invention relates to the polymerization technique of rubber raw rubber, be specifically related to a kind of production technology and equipments of methyl vinyl silicone rubber.
Background technology
Methyl vinyl silicone rubber is a kind of functional high molecule material, due to the chemical structure of its linear polysiloxanes, be that chain is made up of Si-O-Si key, there is excellent thermo-oxidative stability, weathering resistance, highly air-permeable, electrical insulating property, nontoxic, the incomparable performances of other materials such as physiology inertia, therefore, be widely used in aerospace, electric apparatus, electronics, petrochemical industry, weaving, automobile, medicine, food-processing and daily goods manufacture field, be described as " industrial monosodium glutamate ", high-tech and the upgrading and optimization of industrial structure are brought into play to the effect becoming more and more important, 21 century to develop one of indispensable type material.Rubber both can be used as base mateiral, can be added into other material and improve its performance by functional material again, and no matter be bulk product or marketable special product, all belong to the fine chemical product of height capital intensive, high added value.But in existing production technique, general device output investment ratio is larger, technique falls behind, and also has certain pollutent and discharges.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of prepare molecular weight evenly, the production technology and equipments of the methyl vinyl silicone rubber of superior performance.
Technical problem to be solved by this invention realizes by the following technical solutions,
The production technology and equipments of methyl vinyl silicone rubber, it is characterized in that: the production unit of described methyl vinyl silicone rubber, formed by strainer, scale tank, dehydrating kettle, volume pump, preheater, polymerization cylinder, de-low molecule device, Nitrogen plant, vacuum pump and discharging machine etc., described strainer is connected with dehydrating kettle by scale tank, dehydrating kettle is connected with preheater by volume pump, described preheater connects polymerization cylinder by pipeline, polymerization cylinder is connected with de-low molecule device, and described de-low molecule device connects discharging machine by pipeline.
Described vacuum pump is connected with dehydrating kettle and de-low molecule device.
Described dehydrating kettle connects Nitrogen plant.
The production technique of methyl vinyl silicone rubber, its step is,
1, filter entering strainer after the metering of DMC (dimethyl siloxane) suction scale tank;
2, to dehydrating kettle vacuumize, by DMC suction dehydrating kettle, add a certain amount of VMC (vinyl ring body), add-on number determine according to the contents of ethylene of rubber, also pour in strainer suction dehydrating kettle together into;
3, dehydration for the first time, heats up to the material in dehydrating kettle, continues dehydrating kettle to vacuumize, to dehydrating kettle nitrogen blowing bubbling, nitrogen flow is controlled at about 0.2m3/h simultaneously, in the time that temperature in the kettle is raised to 70 DEG C, stop heating, maintain 70 DEG C of the interior temperature of charge of still, dewater 7 hours.
4, dehydration for the second time, dehydration for the first time finishes, cooling to the DMC in dehydrating kettle, treats that temperature is down to 45 DEG C, stop cooling, the alkali glue and the closure agent that add proportional quantity, the major ingredient of closure agent is Tetramethylammonium hydroxide, continues to keep vacuumizing, nitrogen bubble 30 minutes, stop vacuum, eliminate vacuum with nitrogen, make to keep the above malleation of 0.01Mpa for subsequent use in dehydrating kettle.
5, polymerization, opens volume pump dehydration material is entered to the polymerization of polymerization cylinder through dehydrating kettle, volume pump, preheater.
6, de-low molecule, de-low molecule device is heated, temperature remains on 155～190 DEG C, when on de-low molecule device, part is full of material, cooling de-low molecule device, open vacuum pump de-low molecule device is vacuumized, regulate DEG C left and right, temperature to 155～190, make the temperature of sizing material be controlled at 155 DEG C～175 DEG C, sizing material is under silk noil shape extension, removes rapidly low molecule under vacuum.
7, plastic emitting, in the time that glue is arranged at de-low molecule device bottom, opens discharging machine and regulates the rotating speed of continuous discharge machine to make to have remained a small amount of sizing material in funnel, in order to avoid air bleeds.
The invention has the beneficial effects as follows: the present invention is energy-conservation, environmental protection, output increases, and sewage discharge is low etc., and the product stability of output is good, weathering resistance, highly air-permeable, electrical insulating property, nontoxic.
brief description of the drawings
Fig. 1 is the block diagram of present device;
Fig. 2 is the flow chart of steps of technique of the present invention.
embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, the production unit of methyl vinyl silicone rubber, by strainer 1, scale tank 2, dehydrating kettle 3, volume pump 4, preheater 5, polymerization cylinder 6, de-low molecule device 7, Nitrogen plant 10, vacuum pump 9, the formations such as 9` and discharging machine 8, strainer 1 is connected with dehydrating kettle 3 by scale tank 2, dehydrating kettle 3 is connected with preheater 5 by volume pump 4, preheater 5 connects polymerization cylinder 6 by pipeline, polymerization cylinder 6 is connected with de-low molecule device 7, de-low molecule device 7 connects discharging machine 8 by pipeline, vacuum pump 9, 9` is connected with dehydrating kettle 3 and de-low molecule device 7, dehydrating kettle 3 connects Nitrogen plant 10.
As shown in Figure 1 and Figure 2, the production technique of methyl vinyl silicone rubber, its step is,
1, DMC (dimethyl siloxane) suction strainer 1 is filtered;
2, to dehydrating kettle vacuumize, by DMC suction dehydrating kettle 3 after scale tank 2 measures, add a certain amount of VMC (vinyl ring body), add-on number determine according to the contents of ethylene of rubber, also can pour in strainer suction dehydrating kettle 3 together into;
3, dehydration for the first time, material in dehydrating kettle 3 is heated up, continue dehydrating kettle 3 to vacuumize by vacuum pump 9, use Nitrogen plant 10 to dehydrating kettle 3 nitrogen blowing bubblings simultaneously, nitrogen flow is controlled at about 0.2m3/h, in the time that temperature in the kettle is raised to 70 DEG C, stops heating, maintain 70 DEG C of the interior temperature of charge of still, dewater 7 hours.
4, dehydration for the second time, dehydration for the first time finishes, cooling to the DMC in dehydrating kettle 3, treats that temperature is down to 45 DEG C, stop cooling, the alkali glue and the closure agent that add proportional quantity, the major ingredient of closure agent is Tetramethylammonium hydroxide, continues to keep vacuumizing, nitrogen bubble 30 minutes, stop vacuum, eliminate vacuum with nitrogen, make to keep the above malleation of 0.01Mpa for subsequent use in dehydrating kettle.
5, polymerization, opens volume pump 4 dehydration material is entered to 6 polymerizations of polymerization cylinder through dehydrating kettle 3, preheater 5.
6, de-low molecule, de-low molecule device 7 is heated, temperature remains on 155～190 DEG C, when on de-low molecule device, part is full of material, cooling de-low molecule device, open vacuum pump 9` de-low molecule device 7 is vacuumized, regulate DEG C left and right, temperature to 155～190, make the temperature of sizing material be controlled at 155 DEG C～175 DEG C, sizing material is under silk noil shape extension, removes rapidly low molecule under vacuum.
7, plastic emitting, in the time that glue is arranged at de-low molecule device 7 bottoms, opens discharging machine 8 and regulates the rotating speed of continuous discharge machine to make to have remained a small amount of sizing material in funnel, in order to avoid air bleeds.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. a production technique for methyl vinyl silicone rubber, is characterized in that: step is as follows,
A, will dimethyl siloxane suction scale tank enter strainer after metering and filter;
B, to dehydrating kettle vacuumize, by dimethyl siloxane suction dehydrating kettle, add a certain amount of vinyl ring body, add-on number determine according to the contents of ethylene of rubber, also pour in strainer suction dehydrating kettle together into;
C, dehydration for the first time, heat up to the material in dehydrating kettle, continues dehydrating kettle to vacuumize, and to dehydrating kettle nitrogen blowing bubbling, nitrogen flow is controlled at 0.2m simultaneously
3/ h, in the time that temperature in the kettle is raised to 70 DEG C, stops heating, maintains 70 DEG C of the interior temperature of charge of still, dewaters 7 hours;
D, dehydration for the second time, dehydration for the first time finishes, cooling to the dimethyl siloxane in dehydrating kettle, treats that temperature is down to 45 DEG C, stop cooling, the alkali glue and the closure agent that add proportional quantity, the major ingredient of closure agent is Tetramethylammonium hydroxide, continues to keep vacuumizing, nitrogen bubble 30 minutes, stop vacuum, eliminate vacuum with nitrogen, make to keep the above malleation of 0.01MPa for subsequent use in dehydrating kettle;
E, polymerization, open volume pump dehydration material entered to the polymerization of polymerization cylinder through dehydrating kettle, volume pump, preheater;
F, de-low molecule, de-low molecule device is heated, temperature remains on 155～190 DEG C, when on de-low molecule device, part is full of material, cooling de-low molecule device, open vacuum pump de-low molecule device is vacuumized, regulate temperature to 155～190 DEG C, make the temperature of sizing material be controlled at 155 DEG C～175 DEG C, sizing material is under silk noil shape extension, removes rapidly low molecule under vacuum;
G, plastic emitting, in the time that glue is arranged at de-low molecule device bottom, open discharging machine and regulate the rotating speed of continuous discharge machine to make to have remained a small amount of sizing material in funnel, in order to avoid air bleeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110006418.XA CN102153756B (en) | 2011-01-13 | 2011-01-13 | Production process and equipment of methyl vinyl silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110006418.XA CN102153756B (en) | 2011-01-13 | 2011-01-13 | Production process and equipment of methyl vinyl silicone rubber |
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| Publication Number | Publication Date |
|---|---|
| CN102153756A CN102153756A (en) | 2011-08-17 |
| CN102153756B true CN102153756B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110006418.XA Expired - Fee Related CN102153756B (en) | 2011-01-13 | 2011-01-13 | Production process and equipment of methyl vinyl silicone rubber |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816329B (en) * | 2012-09-11 | 2014-05-28 | 佛山市金银河智能装备股份有限公司 | Methyl vinyl silicone rubber continuous production line |
| CN102924721B (en) * | 2012-11-22 | 2013-12-25 | 深圳市森日有机硅材料有限公司 | Method for continuously preparing vinyl silicone oil |
| CN104610547A (en) * | 2015-02-05 | 2015-05-13 | 东莞新东方科技有限公司 | Crud silicone rubber and preparation method thereof |
| CN105273191A (en) * | 2015-10-15 | 2016-01-27 | 吴长江 | Continuous production structure of low-volatility raw rubber |
| CN105273194A (en) * | 2015-10-15 | 2016-01-27 | 吴长江 | Equipment for producing methyl vinyl silicone rubber |
| CN105254895A (en) * | 2015-10-15 | 2016-01-20 | 吴长江 | Methyl vinyl silicone rubber production system |
| CN105273193A (en) * | 2015-10-15 | 2016-01-27 | 吴长江 | Silicone rubber production equipment |
| CN105273195A (en) * | 2015-10-15 | 2016-01-27 | 吴长江 | Raw rubber production device |
-
2011
- 2011-01-13 CN CN201110006418.XA patent/CN102153756B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| "甲基乙烯基硅橡胶聚合新工艺的研究";靳龙泰;《有机硅材料及应用》;19990322(第2期);第1-3,11页 * |
| 靳龙泰."甲基乙烯基硅橡胶聚合新工艺的研究".《有机硅材料及应用》.1999,(第2期),第1-3,11页. * |
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| CN102153756A (en) | 2011-08-17 |
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| C14 | Grant of patent or utility model | ||
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Inventor after: Liu Hongling Inventor before: Zhang Qing |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170831 Address after: 477150 No. 72 Xinhua West Road, Chengguan Town, Dancheng County, Henan Patentee after: Liu Hongling Address before: 239500 Anhui County of Quanjiao Province Jing Zi Lu No. 148 Patentee before: Chuzhou Silicone Polymer Materials Tiancheng Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |