CN113717482A - Super-medium-resistant post-processor rubber tube, preparation process thereof and rubber tube assembly - Google Patents
Super-medium-resistant post-processor rubber tube, preparation process thereof and rubber tube assembly Download PDFInfo
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- CN113717482A CN113717482A CN202110935033.5A CN202110935033A CN113717482A CN 113717482 A CN113717482 A CN 113717482A CN 202110935033 A CN202110935033 A CN 202110935033A CN 113717482 A CN113717482 A CN 113717482A
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- vulcanizing agent
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 77
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000006229 carbon black Substances 0.000 claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 19
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 18
- -1 propylene-tetrafluoroethylene Chemical group 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000004073 vulcanization Methods 0.000 claims description 29
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 26
- 238000001125 extrusion Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 abstract description 16
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052731 fluorine Inorganic materials 0.000 abstract description 7
- 239000011737 fluorine Substances 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 11
- 239000004744 fabric Substances 0.000 description 5
- 239000010705 motor oil Substances 0.000 description 4
- 239000004636 vulcanized rubber Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Abstract
The application relates to the field of automobile pipelines, in particular to a super-medium-resistant postprocessor rubber tube, a preparation process thereof and a rubber tube assembly. A super-medium-resistant rubber tube of a post-processor is prepared from the following raw materials in parts by weight: 60-100 parts of fluororubber, 5-40 parts of propylene-tetrafluoroethylene, 10-30 parts of carbon black, 1-10 parts of acid-resistant filler and 1-6 parts of vulcanizing agent; the preparation method comprises the following steps: the method comprises the following steps: s1, mixing; s2 extruding; and S3 vulcanizing. The rubber tube assembly can be used in exhaust aftertreatment devices meeting the requirements of the national sixth B, and has the advantages of improving acid resistance and amine resistance of fluorine rubber.
Description
Technical Field
The application relates to the field of automobile pipelines, in particular to a super-medium-resistant postprocessor rubber tube, a preparation process thereof and a rubber tube assembly.
Background
With the gradual advance of the national Standard of six, the national Standard of six B has been gradually popularized in China, and if the emission standard of the automobile of the national Standard of six B is to be met, the exhaust aftertreatment must be added. The relevant pipelines of the exhaust aftertreatment device in the prior art are in contact with oil gas and various complex media due to the fact that working conditions are high temperature, and therefore fluorine gel is often used as a main material of the relevant pipelines.
The biggest problem of the fluorine rubber is that amine-resistant substances are poor, engine oil and tail gas meeting the national requirements at present are rich in amines, and a rubber tube made of the fluorine rubber is poor in amine resistance and easy to crack after being contacted with the substances for a long time, so that a pipeline is failed.
Disclosure of Invention
In order to improve the amine resistance of fluorine rubber, the application provides a super-medium-resistant postprocessor rubber tube, a preparation process thereof and a rubber tube assembly.
In a first aspect, the application provides a super-resistant medium postprocessor rubber tube, which adopts the following technical scheme:
a super-medium-resistant rubber tube of a post-processor is prepared from the following raw materials in parts by weight: 60-100 parts of fluororubber, 5-40 parts of propylene-tetrafluoroethylene, 10-30 parts of carbon black, 1-6 parts of vulcanizing agent and 1-10 parts of barium sulfate.
By adopting the technical scheme, the addition of the propylene-tetrafluoroethylene can improve the amine resistance and the acid resistance of the rubber pipe, is suitable for engines meeting the requirements of the nation and the Liu, ensures that the pipeline is not easy to lose efficacy when contacting engine oil and tail gas which are rich in amine, and prolongs the service life of the pipeline; on the other hand, the rubber can be used as raw rubber to replace part of fluororubber raw materials, and the original excellent performance of the fluororubber pipe is kept.
The carbon black can be used as a reinforcing agent to improve the performance of the rubber pipe and improve the manufacturability; the vulcanizing agent can vulcanize the rubber and increase the rubber use performance.
The addition of barium sulfate can improve the acid resistance of the rubber tube, so that the performance of the rubber tube is more suitable for engines meeting the requirements of the national six; on the other hand, the rubber tube can be used as a filler to replace part of carbon black, and the manufacturability of the rubber tube is synergistically improved.
Preferably, the curative comprises one or a combination of both curative TAIC and curative bis 25.
Preferably, the weight ratio of curative TAIC to curative bis 25 is 1.5: 1.
By adopting the technical scheme, the vulcanizing agent TAIC can improve the vulcanizing speed of the rubber tube, and the vulcanizing agent pair 25 can improve the vulcanizing degree of the rubber tube, so that the production efficiency is improved.
Preferably, the carbon black is N990 carbon black.
By adopting the technical scheme, the N990 carbon black and the fluororubber pipe have better matching effect.
In a second aspect, the application provides a preparation process of the rubber tube of the super-medium-resistant postprocessor, which adopts the following technical scheme:
a preparation process of a super-medium-resistant post-processor rubber tube comprises the following steps:
s1 mixing
Putting fluororubber, propylene-tetrafluoroethylene, carbon black, acid-resistant filler and vulcanizing agent into an internal mixer for mixing, and discharging rubber at 90-100 ℃ to obtain a rubber material;
s2 extrusion
Putting rubber materials into an extruder to extrude and coat on the circumferential surface of a core rod and wind the core rod into a wire coil, wherein the temperature of a feeding section is 50-60 ℃, the temperature of a first plasticizing section is 60-70 ℃, the temperature of a second plasticizing section is 65-75 ℃, and the temperature of a machine head is 70-85 ℃;
s3 vulcanization
And (3) vulcanizing the wire coil, wherein the vulcanization condition is as follows: the vulcanization pressure is 0.7-0.85MPa, the vulcanization temperature is 160-180 ℃, and the vulcanization time is 20-35 minutes.
It is to be noted that the person skilled in the art can carry out routine adjustments of temperature, pressure and time within this range depending on the equipment, the actual process.
Preferably, in the kneading in step S1, the fluororubber, the propylene-tetrafluoroethylene, the carbon black and the acid-resistant filler are put into an internal mixer for premixing, and the vulcanizing agent is put into the internal mixer for mixing at 75 to 85 ℃.
Preferably, in the S2 extrusion, the extrusion speed is 4-8 m/min.
By adopting the technical scheme, the new formula of the rubber tube can ensure that the extrusion speed reaches 4-8 m/min and the original formula is 3 m/min, so that the extrusion speed can be greatly increased and the production efficiency can be improved.
Preferably, in S3 vulcanization, the wire coil is directly put into a steam vulcanizing tank for vulcanization.
Through adopting above-mentioned technical scheme, original prescription needs use the infantees to vulcanize, consequently through the prescription of this application, can directly vulcanize in steam vulcanizing boiler on production technology, further promotes production efficiency.
In a third aspect, the present application provides a hose assembly comprising the above-described ultra-media resistant post-processor hose.
By adopting the technical scheme, the rubber pipe assembly can meet the automobile emission standard of the national sixth B.
In summary, the present application has the following beneficial effects:
1. by adopting the propylene-tetrafluoroethylene to replace part of the fluororubber, the overall acid resistance and amine resistance of the rubber pipe are improved.
2. By adopting barium sulfate as the acid-resistant filler, the overall acid resistance of the rubber pipe is further improved, and meanwhile, the overall amine resistance of the rubber pipe is synergistically improved.
3. By adopting the vulcanizing agent TAIC and the vulcanizing agent double 25 to be compounded as the vulcanizing agent, the vulcanizing speed of the rubber tube is increased and the vulcanizing degree of the rubber tube is increased, so that the production efficiency of the rubber tube is improved.
4. By adopting the formula, the extrusion speed can reach 4-8 m/min during extrusion, and the production efficiency is greatly improved.
5. By adopting the formula, the vulcanizing agent can be directly vulcanized in a steam vulcanizing tank during vulcanization, so that the production efficiency is greatly improved.
Detailed Description
The raw materials referred to in the present application are all commercially available, and the type and source of each component are shown in table 1.
TABLE 1 type and Source of raw materials
| Raw materials | Specification/model | Manufacturer of the product |
| Fluororubber | G902 | Chemical engineering of Japan gold |
| Propylene-tetrafluoroethylene | 150E | AGC chemistry |
| Carbon black | N990 | Canadian Kencacabo |
| Vulcanizing agent | Vulcanizing agent TAIC | Fanglida chemical industry |
| Vulcanizing agent | Vulcanizing agent bis 25 | Ningbo ruichen Gao Ke |
| Barium sulfate | BaSO4 | Chemical engineering of Jiangsu Shenglun |
Examples
Examples 1 to 6
The preparation methods in examples 1 to 6 were the same, except for the differences in the raw materials and process parameters, as shown in Table 2. The following description will be given by taking example 1 as an example.
The utility model provides a rubber tube assembly, includes super resistant medium aftertreatment ware rubber tube, the super resistant medium aftertreatment ware rubber tube that this application embodiment 1 disclosed obtains through following step preparation:
s1 mixing
Firstly putting fluororubber, propylene-tetrafluoroethylene, carbon black and barium sulfate into an internal mixer for premixing according to a formula, wherein the temperature of the internal mixer is 70 ℃, the rotating speed is 25rmp, the internal mixing is carried out for 2min, then a vulcanizing agent TAIC and a vulcanizing agent bis 25 are put into the internal mixer for mixing for 2min at 75 ℃, the temperature is increased to 90 ℃ for rubber discharge, the mixture is thinly passed on an open mill for 3-5 times, triangular bags are formed for 2-4 times, and then sheets are taken out to obtain a rubber material;
s2 extrusion
Cleaning the surface of a core rod, spraying a separant, putting rubber materials into an extruder, extruding and coating the rubber materials on the circumferential surface of the core rod, and winding the rubber materials into a wire coil, wherein the temperature of a feeding section of the extruder is 50 ℃, the temperature of a first plasticizing section is 60 ℃, the temperature of a second plasticizing section is 65 ℃, and the temperature of a machine head is 70 ℃;
s3 vulcanization
Directly putting the wire coil wound with the rubber tube into a steam vulcanizing tank for vulcanization, wherein the vulcanization conditions are as follows: the vulcanization pressure is 0.7MPa, the vulcanization temperature is 160 ℃, and the vulcanization time is 20 minutes.
S4 stripping and depoling:
and clamping one end of the pipe by using a chuck of the core stripper for water pressure core stripping to obtain a finished rubber pipe.
The extruder is free of adjusting the die, the core die and the die are mounted on the extruder head and do not need to be adjusted, the core die and the die can be directly extruded, the production efficiency is improved, the uniformity of extruded pipe blanks is guaranteed, and wall thickness deviation is avoided. The extrusion line is managed by adopting an INET system, the extrusion process parameters are well set in advance, and if the process parameters do not accord with the set standards in actual operation, the equipment automatically alarms, so that the one-time off-line qualification rate is improved, the size control is good, and the product quality is stable.
The vulcanizing tank adopts an automatic control system, and the temperature and pressure overproof alarm can prevent over-sulfur or under-sulfur from occurring, so that the compression deformation and other properties are not qualified. The tail gas discharged by vulcanization is collected and treated in a centralized manner, and the heat in the tail gas is recycled for the second time, so that the energy is saved and the environment is protected.
Table 2 table of raw material weights and process parameters for examples 1-6
Example 7
The difference from example 2 is that the carbon black is N550 carbon black.
Example 8
The difference from the example 2 is that the fluororubber, the propylene-tetrafluoroethylene, the carbon black, the acid-resistant filler and the vulcanizing agent are directly put into an internal mixer for mixing, and the internal mixing is carried out for 4min at 75 ℃.
Example 9
The difference from the example 2 is that in the S3 vulcanization, wrapping cloth vulcanization is adopted, namely, the wet wrapping cloth is wound on the extrusion hose, and then the extrusion hose is put into a steam vulcanizing tank for vulcanization.
Example 10
The difference from example 2 is that in the S2 extrusion, the extrusion speed was 3 m/min.
Comparative example 1
This comparative example is different from example 2 in that 100g of fluororubber was added to the starting materials and that no propylene-tetrafluoroethylene was added.
Comparative example 2
This comparative example differs from example 2 in that barium sulfate was not added to the starting material.
Comparative example 3
The comparative example is different from example 2 in that 100g of fluororubber was added as a raw material, and barium sulfate and propylene-tetrafluoroethylene were not added.
Performance test
First, conventional physical Properties
The conventional physical properties of the hose prepared in the above examples and comparative examples are tested with reference to GB/T528-92 (determination of tensile properties of vulcanized rubber and thermoplastic rubber), and the specific results are shown in Table 3.
Second, hot air resistance
The hose prepared in the above embodiment and comparative example is tested for the hot air resistance of the hose with reference to GB/T3512-: 230 ℃ multiplied by 168h, and the specific results are shown in Table 3.
Third, engine resistant
The rubber tube prepared in the above examples and comparative examples is tested for engine oil resistance according to ISO 1817 & lt method for measuring vulcanized rubber or thermoplastic rubber-liquid resistance & gt, and the test conditions are as follows: 175 ℃ multiplied by 168h, and the specific results are shown in Table 3.
Tetra, organic amine resistant
The organic amine resistance of the rubber hose prepared in the above examples and comparative examples is tested under the test conditions of 100 ℃ for 504h by referring to ISO 1817 method for measuring vulcanized rubber or thermoplastic rubber-liquid resistance, and the specific results are shown in Table 3.
Organic weak acid resistance
The rubber tube prepared in the above examples and comparative examples is tested for its weak acid and organic resistance under test conditions of 100 ℃ for 504h according to ISO 1817 & lt & gt method for measuring vulcanized rubber or thermoplastic rubber-liquid resistance, and the specific results are shown in Table 3.
Detection results and analysis
TABLE 3 Performance test data sheet
Examples 1-6 are preferred examples of the present application, and example 2 is the most preferred example, and the rubber hose obtained has better acid resistance and amine corrosion resistance, and also has better conventional physical properties, hot air resistance and engine oil resistance. Therefore, the method is applied to the ultra-medium-tolerant post-processor meeting the requirement of the national sixth B.
In example 7, N550 carbon black is used instead of N990 carbon black, and the performance of the finally obtained hose is reduced, so that when the N990 carbon black is applied to the fluorine rubber of the present application, the performance improvement effect on the fluorine rubber is good.
Example 8 compared with example 2, the better mixture ratio of the application is adopted, but all the raw materials are put into an internal mixer for direct internal mixing in preparation, and the acid resistance and amine resistance of the finally obtained rubber hose are reduced.
Compared with the example 2, the traditional cloth coating is adopted for vulcanization in the vulcanization process, but the performance of the obtained rubber hose is reduced to some extent, which shows that the direct vulcanization can better improve the comprehensive performance of the rubber hose compared with the traditional cloth coating vulcanization by adopting the formula of the application. Meanwhile, the process of wrapping cloth is omitted, so that the production steps can be omitted, and the production efficiency is greatly improved.
Compared with the example 2, the extrusion speed in the extrusion process is 3 m/min, but the performance of the obtained rubber hose is almost the same, which shows that the formula of the application can not only have higher extrusion speed in the extrusion process, but also maintain the performance of the rubber hose, thereby greatly improving the production efficiency.
Compared with the example 2, the propylene-tetrafluoroethylene is not added into the raw materials, and the addition amount of the fluororubber is complemented, and the result shows that the propylene-tetrafluoroethylene replaces part of the fluororubber, so that the amine resistance of the rubber pipe can be greatly improved, the acid resistance of the rubber pipe can be synergistically improved, and the excellent performances of other aspects of the rubber pipe can be maintained.
Compared with the example 2, the raw materials are not added with barium sulfate, and the result shows that the barium sulfate can greatly improve the acid resistance of the rubber hose, and simultaneously synergistically improve the amine resistance of the rubber hose, and maintain the excellent performances of other aspects of the rubber hose.
Compared with the example 2, the raw materials are not added with barium sulfate and propylene-tetrafluoroethylene, and the result shows that the barium sulfate and the propylene-tetrafluoroethylene can synergistically improve the acid resistance and the amine resistance of the rubber hose and simultaneously improve other performances of the rubber hose.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The rubber tube of the super-medium-resistant postprocessor is characterized by being prepared from the following raw materials in parts by weight: 60-100 parts of fluororubber, 5-40 parts of propylene-tetrafluoroethylene, 10-30 parts of carbon black, 1-6 parts of vulcanizing agent and 1-10 parts of barium sulfate.
2. The hypermedia post-processor hose according to claim 1, wherein the vulcanizing agent comprises one or a combination of vulcanizing agent TAIC and vulcanizing agent bis 25.
3. The hypermedia post-processor hose according to claim 3, wherein the vulcanizing agent TAIC and vulcanizing agent bis 25 are present in a weight ratio of 1.5: 1.
4. The hypermedia resistant aftertreater hose according to claim 1, wherein the carbon black is N990 carbon black.
5. A process for preparing a hypermedia resistant post-processor hose according to any one of claims 1 to 4, comprising the steps of:
s1 mixing
Putting fluororubber, propylene-tetrafluoroethylene, carbon black, acid-resistant filler and vulcanizing agent into an internal mixer for mixing, and discharging rubber at 90-100 ℃ to obtain a rubber material;
s2 extrusion
Putting rubber materials into an extruder to extrude and coat on the circumferential surface of a core rod and wind the core rod into a wire coil, wherein the temperature of a feeding section is 50-60 ℃, the temperature of a first plasticizing section is 60-70 ℃, the temperature of a second plasticizing section is 65-75 ℃, and the temperature of a machine head is 70-85 ℃;
s3 vulcanization
And (3) vulcanizing the wire coil, wherein the vulcanization condition is as follows: the vulcanization pressure is 0.7-0.85MPa, the vulcanization temperature is 160-180 ℃, and the vulcanization time is 20-35 minutes.
6. The process according to claim 5, wherein in the kneading in step S1, the fluororubber, the propylene-tetrafluoroethylene, the carbon black and the acid-resistant filler are preliminarily mixed in an internal mixer, and the mixture is further mixed with a vulcanizing agent at 75 to 85 ℃.
7. The process of claim 5, wherein in the S2 extrusion, the extrusion speed is 4-8 m/min.
8. The preparation process of claim 5, wherein in S3 vulcanization, the wire coil is directly put into a steam vulcanizing tank for vulcanization.
9. A hose assembly comprising the ultramedia resistant post-processor hose of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935033.5A CN113717482A (en) | 2021-08-16 | 2021-08-16 | Super-medium-resistant post-processor rubber tube, preparation process thereof and rubber tube assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935033.5A CN113717482A (en) | 2021-08-16 | 2021-08-16 | Super-medium-resistant post-processor rubber tube, preparation process thereof and rubber tube assembly |
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| CN113717482A true CN113717482A (en) | 2021-11-30 |
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| CN202110935033.5A Pending CN113717482A (en) | 2021-08-16 | 2021-08-16 | Super-medium-resistant post-processor rubber tube, preparation process thereof and rubber tube assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115716998A (en) * | 2022-11-21 | 2023-02-28 | 天津鹏翎集团股份有限公司 | Modified fluororubber and preparation method and application thereof, EGR pipeline and preparation method thereof, and EGR system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699463A (en) * | 2005-06-20 | 2005-11-23 | 蒋惠成 | Concentrated sulfuric acid resistant fluoro-rubber sealing spacer |
| CN101205342A (en) * | 2007-11-16 | 2008-06-25 | 广州机械科学研究院 | Fluororubber sealing members applied for CIP cleaning system |
| CN111363279A (en) * | 2020-03-17 | 2020-07-03 | 戚佳轩 | Fluororubber composition capable of being co-vulcanized and bonded with silicone rubber, rubber product and preparation method |
-
2021
- 2021-08-16 CN CN202110935033.5A patent/CN113717482A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699463A (en) * | 2005-06-20 | 2005-11-23 | 蒋惠成 | Concentrated sulfuric acid resistant fluoro-rubber sealing spacer |
| CN101205342A (en) * | 2007-11-16 | 2008-06-25 | 广州机械科学研究院 | Fluororubber sealing members applied for CIP cleaning system |
| CN111363279A (en) * | 2020-03-17 | 2020-07-03 | 戚佳轩 | Fluororubber composition capable of being co-vulcanized and bonded with silicone rubber, rubber product and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115716998A (en) * | 2022-11-21 | 2023-02-28 | 天津鹏翎集团股份有限公司 | Modified fluororubber and preparation method and application thereof, EGR pipeline and preparation method thereof, and EGR system |
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