CN114181480A - Fluororubber composition and preparation method and application thereof - Google Patents
Fluororubber composition and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
Abstract
The invention belongs to the technical field of polymer rubber composite materials, and discloses a fluororubber composition and a preparation method and application thereof. The fluororubber composition is prepared from 100 parts by weight of fluororubber, 1-30 parts by weight of polyimide, 1-3 parts by weight of crosslinking agent, 1-6 parts by weight of accelerator and 0-3 parts by weight of processing aid. The fluororubber composition prepared by the invention can improve the elastic modulus and the compression set, and the rubber product formed by the composition is very suitable for industries of semiconductors, photovoltaics, foods, medicines and the like with high cleanliness, low particulate matter precipitation and low metal ion content requirements.
Description
Technical Field
The invention belongs to the technical field of high polymer rubber composite materials, and particularly relates to a fluororubber composition and a preparation method and application thereof.
Background
The fluororubber has excellent chemical medium resistance and high temperature resistance, and is widely applied to the industries of petrifaction, aerospace, food and medicine, semiconductors, photovoltaics and the like. The fluororubber raw rubber generally cannot be used alone, other components such as a vulcanizing agent, a reinforcing filler, a processing aid and the like are often required to be matched for use, and particularly, a large amount of carbon black or inorganic mineral filler is generally filled for reinforcing in order to improve the mechanical property of the fluororubber material. However, in industries such as semiconductors, photovoltaics, food and medicine, when fluororubber is used as a sealing member or other products, there are requirements on cleanliness, particulate matter precipitation and metal ion content limitation, so that carbon black and inorganic mineral fillers cannot be used in fluororubber materials.
In order to overcome the above problems, a great deal of research has been conducted by technologists. Non-patent document 1 discloses a performance study of an FKM/PTFE/carbon black composite material (rubber industry, 2009, No. 1, pages 20 to 24, li en force), and studies that adding Polytetrafluoroethylene (PTFE) fine powder to fluororubber and partially replacing carbon black with PTFE fine powder significantly increases the tensile strength, tensile elongation and tear strength of vulcanized rubber, improves wear resistance, reduces compression set, greatly reduces brittleness temperature, but deteriorates low-temperature resilience. Patent document 1CN105849180A discloses a fluororubber composition containing a hydrogen atom-containing fluororubber and a hydrogen atom-containing fluororesin, preferably at least 1 of the group consisting of polyvinylidene fluoride (PVDF), vinylidene fluoride (VDF) -Hexafluoropropylene (HFP) copolymer, tetrafluoroethylene-ethylene copolymer (ETFE), and vinylidene fluoride (VDF) -Hexafluoropropylene (HFP) -tetrafluoroethylene (ETFE) copolymer, and a crosslinked rubber molded article and a method for producing the same. The polytetrafluoroethylene micro powder or the fluororesin is added into the fluororubber, so that the fluororubber material can be filled, the cleanliness is improved, the precipitation of particles and the content of metal ions are reduced, and the fluororubber material has low elastic modulus and poor resilience.
In view of the above, the invention provides a fluororubber composition with high elastic modulus and good resilience, and is also suitable for industries such as semiconductors, photovoltaics, food and medicine and the like with high cleanliness, low particulate matter precipitation and low metal ion content requirements.
Disclosure of Invention
The invention provides a fluororubber composition, and a preparation method and application thereof, and the fluororubber composition with high elastic modulus and good rebound resilience can be obtained, and is suitable for industries such as semiconductors, photovoltaics, food and medicine and the like with high cleanliness, low particulate matter precipitation and low metal ion content requirements.
In order to achieve the purpose, the invention adopts the following technical scheme:
the fluororubber composition is prepared from the following raw and auxiliary materials in parts by weight:
in order to solve the technical problems mentioned in the background art, when polyimide which is polymer resin and does not contain fluorine elements is selected for testing, the inventor accidentally adds polyimide resin micro powder with a certain proportion into fluororubber, so that the elastic modulus and the resilience of the fluororubber material can be obviously improved; most importantly, when the conditions are met, the low-pressure oxygen plasma etching test shows that the particle precipitation is close to that of polytetrafluoroethylene and fluorine-containing resin, and the fluororubber composition can be completely suitable for the requirements of industries such as semiconductors, photovoltaics, food and medicine and the like with high cleanliness, low particle precipitation and low metal ion content.
Further, the fluororubber composition is prepared from the following raw and auxiliary materials in parts by weight:
further, the fluorine rubber is at least one of the group consisting of vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene copolymer, vinylidene fluoride/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer and ethylene/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer.
Furthermore, the fluororubber is vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene copolymer Viton GF or Viton GBL; the vinylidene fluoride/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer is Viton GLT, Viton GBLT or Viton GFLT; the ethylene/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer is Viton ETP fluororubber.
Further, the polyimide is one or more of thermosetting Polyimide (PI), Thermoplastic Polyimide (TPI), polyamide imide (PAI) and Polyetherimide (PEI). Further, the polyimide is a fine powder polyimide, and the particle size of the fine powder polyimide is preferably 500 to 2000 meshes.
Further, the crosslinking agent is 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane (e.g., DBPH 101XL-45, 45% active ingredient).
Further, the accelerator is triallyl isocyanurate (such as TAIC-S70, 70% of effective component).
Further, the processing aid is HT 290.
Another object of the present invention is to provide a method for producing the above fluororubber composition, comprising the steps of:
(1) plasticating 100 parts by weight of fluororubber on a double-roller open mill uniformly and wrapping the fluororubber by rollers, then premixing 1-30 parts by weight of polyimide micropowder, 1-3 parts by weight of cross-linking agent, 1-6 parts by weight of accelerator and 0-3 parts by weight of processing aid auxiliary material uniformly, gradually adding the mixture into the open mill, and mixing the fluororubber and the auxiliary material;
(2) mixing fluororubber and auxiliary materials, respectively opening left and right cutters of the rubber composition of a wrapping roller for 5-10 times, adjusting the roller distance of an open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be 15-20 minutes, and the roller temperature of the open mill is controlled to be within 60 ℃, so that the rubber composite material is uniformly mixed and then is discharged to obtain rubber compound of the fluororubber composition;
(3) and (3) aging the prepared fluororubber composition rubber compound for 16 hours, and then remilling the rubber compound into sheets for later use.
Finally, the fluororubber composition provided by the invention or the fluororubber composition obtained by the fluororubber composition preparation method provided by the invention can be molded or transfer molded or injection molded to obtain a fluororubber molded product.
The fluororubber molding product provided by the invention can be applied to the industries of semiconductors, photovoltaics, lithium batteries or food and medicine.
According to the fluororubber composition and the preparation method thereof provided by the invention, polyimide resin micro powder is added into a fluororubber polymer, and a vulcanization system is reasonably optimized, and test results show that the elastic modulus and the resilience of the fluororubber material are greatly improved, the particle precipitation performance is similar to that of a material added with polytetrafluoroethylene and the fluororesin micro powder, and the fluororubber composition and the preparation method thereof are very suitable for industries such as semiconductors, photovoltaics, food and medicine and the like with high cleanliness, low particle precipitation and low metal ion content requirements.
Detailed Description
The invention discloses a fluororubber composition, a preparation method and application thereof, and can be realized by appropriately improving process parameters by referring to the contents in the field. It is expressly intended that all such similar substitutes and modifications which would be obvious to those skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
Example 1 selection of formulation of fluororubber composition
Table 1 shows the compositions of fluororubbers Nos. 1to 6, and the detailed proportions of the components are shown in the table.
Fluororubber compositions Nos. 11 to 8 in tables
| Number 1 | Number 2 | No. 3 | Number 4 | Number 5 | Number 6 | |
| Viton GF of fluororubber | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
| Cross-linking agent DBPH 101XL-45 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| Accelerator TAIC-S70 | 3.50 | 3.50 | 3.50 | 3.50 | 3.50 | 3.50 |
| Polytetrafluoroethylene micropowder | 20.00 | 30.00 | ||||
| Fine powder of perfluoroalkoxy resin | 20.00 | 30.00 | ||||
| Polyetherimide (PEI) micropowder | 20.00 | 30.00 | ||||
| Processing aid HT290 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
Weighing the components according to the proportion of formulas No. 1to No. 6 (parts by weight) in the table 1, wrapping fluororubber on a double-roller open mill, adding auxiliary materials such as resin micro powder, a cross-linking agent, an accelerant, a processing aid and the like into the open mill, uniformly mixing the fluororubber with the rubber composition wrapped on the rolls by opening left and right cutters for 5 to 10 times respectively, adjusting the roll distance of the open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be between 15 and 20 minutes, uniformly mixing at the roll temperature of lower than 60 ℃, and discharging to obtain fluororubber mixed rubber. And (3) carrying out mould pressing vulcanization on the mixed rubber at the temperature of 180 ℃ for 10 minutes under the condition of first-stage vulcanization to obtain a standard rubber test piece, carrying out second-stage vulcanization at the temperature of 200 ℃ for 12 hours, preparing and testing the rubber test piece according to a standard test sample strip, wherein the performance parameters of the No. 1-6 fluororubber composition are shown in Table 2.
The test method and the standard are as follows:
1. GB/T531.1-2008 vulcanized rubber or thermoplastic rubber press-in hardness test method part one: shore durometer method;
2. determining the tensile stress strain performance of GB/T528-2009 vulcanized rubber or thermoplastic rubber;
3. GB/T7759.1-2015 determination of compression set of vulcanized rubber or thermoplastic rubber part 1 under normal temperature and high temperature conditions;
4. plasma etch testing: oxygen O at a pressure of 1torr and a power of 500W2Etching gas by using plasma, observing the surface appearance of the sealing ring after etching for 6 hours, and calculating the weight change of particle precipitation and the etching rate, wherein the weight change is according to the following formula: change in weight (%) of particulate matter precipitation (pre-etching weight-post-etching weight)/pre-etching weight 100; etch rate (mg/h) is etch weight change per unit hour.
TABLE 21-6 fluororubber composition Property test parameters
The data in Table 2 show that for Viton GF, the other components were kept constant, and 20 parts of PTFE micropowder, perfluoroalkoxy resin micropowder, or polyimide micropowder, respectively, were added sequentially, resulting in the performance results for the fluororubber compositions Nos. 1to 3: the hardness of the added polyimide micro powder is slightly improved, the tensile strength and the elongation at break are reduced, the 50 percent modulus and the 100 percent modulus are greatly improved by about 54 percent and 129 percent, and the compression set is obviously improved; respectively and sequentially adding 30 parts of polytetrafluoroethylene micro powder, perfluoroalkoxy resin micro powder and polyimide micro powder, and obtaining the following performance results: the hardness of the polyimide micropowder added with 30 parts is slightly improved, the tensile strength and the elongation at break are reduced, the 50 percent modulus and the 100 percent modulus are greatly improved by about 100 percent and 205 percent, and the compression set is also improved. Therefore, the composition obtained by filling the fluorine rubber with the specific polyimide can obviously improve the elastic modulus of the material, obviously improve the compression set, and ensure that a rubber product adopting the composition has smaller deformation, better rebound resilience and better sealing application effect.
From O2The plasma etching data show that the surface appearance change of the Viton GF sealing element is consistent after etching, and the particle precipitation weight change and the etching rate are similar. The data in tables 1 and 2 show that when polyimide resin micropowder with a certain proportion is added into specific fluororubber, the elastic modulus of the material is improved, the compression set rate is improved, the rebound resilience is good, and the plasma etching performance is not affected.
EXAMPLE 2 selection of formulation for fluororubber composition
The formula of the fluororubber materials No. 7 to No. 11 is shown in the table 3, and the detailed proportion of each component is shown in the table.
Formulations of fluororubbers Nos. 37 to 11 in Table
| Serial number | No. 7 | Number 8 | Number 9 | Number 10 | Number 11 |
| Viton GLT | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
| Cross-linking agent 101XL-45 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| Accelerator TAIC-S70 | 3.50 | 3.50 | 3.50 | 3.50 | 3.50 |
| Polytetrafluoroethylene micropowder | 20.00 | ||||
| Fine powder of perfluoroalkoxy resin | 20.00 | ||||
| Thermoplastic Polyimide (TPI) micropowder | 10.00 | 20.00 | 30.00 | ||
| Processing aid HT290 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
Weighing the components according to the formula (weight parts) of No. 7 to No. 11 in the table 3, wrapping fluororubber on a roller mill, adding auxiliary materials such as resin micro powder, a cross-linking agent, an accelerant and a processing aid into the mill, uniformly mixing the auxiliary materials with the fluororubber, respectively opening left and right knives of the rubber composition for wrapping the roller 5 to 10 times, adjusting the roller distance of the mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled between 15 and 20 minutes, and uniformly mixing and discharging at the roller temperature of lower than 60 ℃ to obtain fluororubber mixed rubber. And (3) carrying out mould pressing vulcanization on the mixed rubber at the temperature of 180 ℃ for 10 minutes under the condition of first-stage vulcanization to obtain a standard rubber test piece, carrying out second-stage vulcanization at the temperature of 200 ℃ for 12 hours, preparing and testing the rubber test piece according to a standard test sample strip, wherein the performance parameters of the 7-11 fluororubber composition are shown in Table 4. The test methods and criteria used are the same as in example 1.
TABLE 47-11 fluororubber Performance test parameters
The data in Table 4 show that when a certain amount of fine polytetrafluoroethylene powder, fine perfluoroalkoxy resin powder, and fine polyimide powder were added to Viton GLT fluororubber, the formulations containing polyimide had a slightly higher hardness than the formulations containing the fine polytetrafluoroethylene powder and the fine perfluoroalkyl resin powder. In the formula No. 9-11, with the increase of the addition of the polyimide micropowder, the hardness is obviously improved, the tensile strength is slightly improved, the elongation at break is slightly reduced, the 50 percent modulus and the 100 percent modulus are greatly improved, and the compression set rate is similar. Therefore, the elastic modulus of the material is greatly improved and the rebound resilience is better due to the composition of the polyimide filled fluororubber.
From O2According to the plasma etching data, the surface appearance change of the Viton GLT material sealing element is consistent after etching, the minimum of 20 parts of polytetrafluoroethylene micro powder and 30 parts of polyimide micro powder added to the change of the weight of the precipitated particles is minimized, and the etching rate is also minimized. In addition, as can be seen from the etching data in tables 2 and 4, the sealing ring made of Viton GF material has better oxygen etching resistance than Viton GLT.
EXAMPLE 3 preparation of fluororubber composition
(1) 100 parts by weight of Viton GFLT fluororubber is plasticated uniformly and roll-coated on a two-roll mill, then 1 part by weight of 500-mesh Polyamideimide (PAI) micropowder, 1 part by weight of a crosslinking agent 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane DBPH and 1 part by weight of an accelerator triallyl isocyanurate (TAIC) are uniformly mixed in advance, and are gradually added into the mill, and the fluororubber and auxiliary materials are mixed;
(2) mixing fluororubber and auxiliary materials, respectively opening left and right cutters of the rubber composition of a wrapping roller for 5-10 times, adjusting the roller distance of an open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be 15-20 minutes, and the roller temperature of the open mill is controlled to be within 60 ℃, so that the rubber composite material is uniformly mixed and then is discharged to obtain rubber compound of the fluororubber composition;
(3) and (3) aging the prepared fluororubber composition rubber compound for 16 hours, and then remilling the rubber compound into sheets for later use.
EXAMPLE 4 preparation of fluororubber composition
(1) Plasticating 100 weight parts of Viton GBLT fluororubber on a two-roll open mill uniformly and wrapping the Viton GBLT fluororubber on rolls, then premixing 30 weight parts of 2000-mesh Polyetherimide (PEI) micropowder, 3 weight parts of cross-linking agent 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane, 6 weight parts of accelerator triallyl isocyanurate (TAIC) and 3 weight parts of processing aid HT290 uniformly, gradually adding the mixture into the open mill, and mixing the fluororubber and auxiliary materials;
(2) mixing fluororubber and auxiliary materials, respectively opening left and right cutters of the rubber composition of a wrapping roller for 5-10 times, adjusting the roller distance of an open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be 15-20 minutes, and the roller temperature of the open mill is controlled to be within 60 ℃, so that the rubber composite material is uniformly mixed and then is discharged to obtain rubber compound of the fluororubber composition;
(3) and (3) aging the prepared fluororubber composition rubber compound for 16 hours, and then remilling the rubber compound into sheets for later use.
EXAMPLE 5 preparation of fluororubber composition
(1) Uniformly plasticating 100 parts by weight of Viton ETP fluororubber on a two-roll open mill and coating the Viton ETP fluororubber on rolls, then uniformly mixing 5 parts by weight of 1000-mesh Thermoplastic Polyimide (TPI) micropowder, 1.5 parts by weight of cross-linking agent 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane, 3 parts by weight of accelerator triallyl isocyanurate (TAIC), 0.5 part by weight of processing aid HT290 and other auxiliary materials in advance, gradually adding the mixture into the open mill, and mixing the fluororubber and the auxiliary materials;
(2) mixing fluororubber and auxiliary materials, respectively opening left and right cutters of the rubber composition of a wrapping roller for 5-10 times, adjusting the roller distance of an open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be 15-20 minutes, and the roller temperature of the open mill is controlled to be within 60 ℃, so that the rubber composite material is uniformly mixed and then is discharged to obtain rubber compound of the fluororubber composition;
(3) and (3) aging the prepared fluororubber composition rubber compound for 16 hours, and then remilling the rubber compound into sheets for later use.
EXAMPLE 6 preparation of fluororubber composition
(1) Uniformly plasticating 100 parts by weight of Viton GBL fluororubber on a two-roll open mill and coating the Viton GBL fluororubber on rolls, then uniformly mixing 20 parts by weight of 1200-mesh thermosetting Polyimide (PI) micropowder, 2 parts by weight of a cross-linking agent 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane, 4 parts by weight of an accelerator triallyl isocyanurate (TAIC), 1 part by weight of a processing aid HT290 and other auxiliary materials in advance, gradually adding the mixture into the open mill, and mixing the fluororubber and the auxiliary materials;
(2) mixing fluororubber and auxiliary materials, respectively opening left and right cutters of the rubber composition of a wrapping roller for 5-10 times, adjusting the roller distance of an open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be 15-20 minutes, and the roller temperature of the open mill is controlled to be within 60 ℃, so that the rubber composite material is uniformly mixed and then is discharged to obtain rubber compound of the fluororubber composition;
(3) and (3) aging the prepared fluororubber composition rubber compound for 16 hours, and then remilling the rubber compound into sheets for later use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The fluororubber composition is characterized by being prepared from the following raw and auxiliary materials in parts by weight:
2. the fluororubber composition according to claim 1, wherein the fluororubber is at least one member selected from the group consisting of a vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene copolymer, a vinylidene fluoride/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer, and an ethylene/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer.
3. The fluororubber composition according to claim 2, wherein said fluororubber is a vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene copolymer Viton GF or Viton GBL; the vinylidene fluoride/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer is Viton GLT, Viton GBLT or Viton GFLT; the ethylene/tetrafluoroethylene/perfluoromethyl vinyl ether copolymer is Viton ETP fluororubber.
4. The fluororubber composition according to claim 1, wherein the polyimide is a fine polyimide having a particle size of 500 to 2000 mesh; the polyimide is one or more of thermosetting polyimide, thermoplastic polyimide, polyamide-imide or polyetherimide.
5. The fluororubber composition according to claim 1, wherein said crosslinking agent is 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane.
6. The fluororubber composition according to claim 1, wherein said accelerator is triallylisocyanurate.
7. The fluororubber composition according to claim 1, wherein the processing aid is HT 290.
8. The process for producing a fluororubber composition according to claims 1to 7, comprising the steps of:
(1) plasticating 100 parts by weight of fluororubber on a double-roller open mill uniformly and wrapping the fluororubber by rollers, then premixing 1-30 parts by weight of polyimide micropowder, 1-3 parts by weight of cross-linking agent, 1-6 parts by weight of accelerator and 0-3 parts by weight of processing aid auxiliary material uniformly, gradually adding the mixture into the open mill, and mixing the fluororubber and the auxiliary material;
(2) mixing fluororubber and auxiliary materials, respectively opening left and right cutters of the rubber composition of a wrapping roller for 5-10 times, adjusting the roller distance of an open mill to be minimum, and performing rolling or triangular wrapping for 10 times, wherein the whole mixing time is controlled to be 15-20 minutes, and the roller temperature of the open mill is controlled to be within 60 ℃, so that the rubber composite material is uniformly mixed and then is discharged to obtain rubber compound of the fluororubber composition;
(3) and (3) aging the prepared fluororubber composition rubber compound for 16 hours, and then remilling the rubber compound into sheets for later use.
9. A fluororubber molded article obtained by a production method by compression molding or transfer molding or injection molding using the fluororubber composition according to claims 1to 7.
10. The fluororubber molded article according to claim 9, wherein the fluororubber molded article is used in semiconductor, photovoltaic, lithium battery, or food and pharmaceutical industries.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181379A (en) * | 2022-07-20 | 2022-10-14 | 四达氟塑股份有限公司 | Processing technology of fluororubber sealing ring |
| CN115895290A (en) * | 2022-11-30 | 2023-04-04 | 上海熹贾精密技术有限公司 | Fluororubber composition and preparation method and application thereof |
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| US20050054753A1 (en) * | 2001-11-30 | 2005-03-10 | 1) Koyo Seiko Co., Ltd. 2) Koyo Sealing Techno Co., Ltd | Sealing composition and seals made by using the same |
| CN1777644A (en) * | 2003-04-22 | 2006-05-24 | 大金工业株式会社 | Fluorine-containing elastomer composition with excellent plasma-aging prevention effect and shaped article made thereof |
| CN111465649A (en) * | 2017-12-15 | 2020-07-28 | 科德宝两合公司 | Curable fluoroelastomers with low tendency to swell |
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2021
- 2021-12-15 CN CN202111536745.6A patent/CN114181480A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050054753A1 (en) * | 2001-11-30 | 2005-03-10 | 1) Koyo Seiko Co., Ltd. 2) Koyo Sealing Techno Co., Ltd | Sealing composition and seals made by using the same |
| CN1777644A (en) * | 2003-04-22 | 2006-05-24 | 大金工业株式会社 | Fluorine-containing elastomer composition with excellent plasma-aging prevention effect and shaped article made thereof |
| CN111465649A (en) * | 2017-12-15 | 2020-07-28 | 科德宝两合公司 | Curable fluoroelastomers with low tendency to swell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181379A (en) * | 2022-07-20 | 2022-10-14 | 四达氟塑股份有限公司 | Processing technology of fluororubber sealing ring |
| CN115895290A (en) * | 2022-11-30 | 2023-04-04 | 上海熹贾精密技术有限公司 | Fluororubber composition and preparation method and application thereof |
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