CN117209927A - High-wear-resistance anti-aging rubber sealing ring and preparation method thereof - Google Patents
High-wear-resistance anti-aging rubber sealing ring and preparation method thereof Download PDFInfo
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- CN117209927A CN117209927A CN202311065423.7A CN202311065423A CN117209927A CN 117209927 A CN117209927 A CN 117209927A CN 202311065423 A CN202311065423 A CN 202311065423A CN 117209927 A CN117209927 A CN 117209927A
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- sealing ring
- aging
- raw materials
- lubricant
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 229920001971 elastomer Polymers 0.000 title claims abstract description 38
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims abstract description 12
- 239000012765 fibrous filler Substances 0.000 claims abstract description 12
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 12
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 12
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 12
- 239000008117 stearic acid Substances 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 230000002950 deficient Effects 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims abstract description 6
- 238000011179 visual inspection Methods 0.000 claims abstract description 6
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 claims description 2
- 229910000271 hectorite Inorganic materials 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention relates to the technical field of rubber ring preparation, in particular to an anti-aging rubber sealing ring with high wear resistance, which consists of 70-90 parts of fluororubber, 15-25 parts of modified polybutyl acrylate, 1-5 parts of polytetrafluoroethylene, 5-10 parts of fibrous filler, 1-3 parts of vulcanizing agent, 15-30 parts of high styrene, 2-3 parts of stearic acid, 0.5-1 part of anti-aging agent, 3-5 parts of carbon black and 0.5-1.5 parts of lubricant, wherein the preparation method of the rubber sealing ring comprises the following steps: s1, proportioning: weighing the raw materials of the sealing ring for standby; s2, mixing: mixing the raw materials weighed in the step S1; s3, preheating a die: heating the mold for 6-8min to 170-200 ℃; s4, feeding: putting the mixed raw materials in the step S2 into a die; s5, demolding: blowing out the sealing ring by using an air gun, and removing clinker in the die cavity; s6, detecting: removing defective sealing rings by visual inspection or mechanical inspection; s7, packaging: the rubber sealing ring has excellent heat resistance, oil resistance, wear resistance, ageing resistance and other performances.
Description
Technical Field
The invention relates to the technical field of rubber ring preparation, in particular to an anti-aging rubber sealing ring with high wear resistance and a preparation method thereof.
Background
The rubber sealing ring is widely applied to fluid mechanical equipment in the fields of petrochemical industry, automobiles and buildings, is a part for preventing fluid or solid particles from leaking from adjacent joint surfaces and impurities such as external dust or moisture from invading parts inside the equipment, and generally works under certain pressure and temperature conditions.
At present, due to poor ageing resistance of the rubber sealing ring, the service life of the rubber sealing ring is shortened, meanwhile, the ageing rubber sealing ring can be adhered to metal, the mechanical property is poor, and the thermal stability is rapidly reduced, meanwhile, the reciprocating friction on the surfaces of the rubber sealing piece and the matching shaft can generate a large amount of heat, and the accumulation of friction heat can cause local heating of a friction surface to influence the service life.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides an anti-aging rubber sealing ring with high wear resistance and a preparation method thereof, so as to solve the problems that the service life of the rubber sealing ring is shortened, the aged rubber sealing ring is sticky to metal, the mechanical property is poor, the thermal stability is rapidly reduced, a great amount of heat is generated by the reciprocating friction on the surfaces of a rubber sealing member and a matching shaft, the friction surface is locally heated due to accumulation of friction heat, and the service life is influenced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the anti-aging rubber sealing ring with high wear resistance consists of the following components in parts by weight: 70-90 parts of fluororubber, 15-25 parts of modified polybutyl acrylate, 1-5 parts of polytetrafluoroethylene, 5-10 parts of fibrous filler, 1-3 parts of vulcanizing agent, 15-30 parts of high styrene, 2-3 parts of stearic acid, 0.5-1 part of anti-aging agent, 3-5 parts of carbon black and 0.5-1.5 parts of lubricant.
In the embodiment of the invention, the composition comprises the following components in parts by weight: 85 parts of fluororubber, 22 parts of modified polybutyl acrylate, 3.5 parts of polytetrafluoroethylene, 7 parts of fibrous filler, 2.2 parts of vulcanizing agent, 19 parts of high styrene, 2.7 parts of stearic acid, 0.7 part of anti-aging agent, 4 parts of carbon black and 0.9 part of lubricant.
In the embodiment of the invention, the composition comprises the following components in parts by weight: 70 parts of fluororubber, 15 parts of modified polybutyl acrylate, 1 part of polytetrafluoroethylene, 5 parts of fibrous filler, 1 part of vulcanizing agent, 15 parts of high styrene, 2 parts of stearic acid, 0.5 part of anti-aging agent, 3 parts of carbon black and 0.5 part of lubricant.
In the embodiment of the invention, the composition comprises the following components in parts by weight: 90 parts of fluororubber, 25 parts of modified polybutyl acrylate, 5 parts of polytetrafluoroethylene, 10 parts of fibrous filler, 3 parts of vulcanizing agent, 30 parts of high styrene, 3 parts of stearic acid, 1 part of anti-aging agent, 5 parts of carbon black and 1.5 parts of lubricant.
In the embodiment of the invention, the modified polybutyl acrylate is prepared by modifying polybutyl acrylate with modified nano hectorite.
In an embodiment of the present invention, the lubricant is one or more of silicone oil, oleic acid, polyester or synthetic ester.
The invention also provides a preparation method of the high-wear-resistance anti-aging rubber sealing ring, which comprises the following steps:
s1, proportioning: weighing the raw materials of the sealing ring for standby;
s2, mixing: mixing the raw materials weighed in the step S1;
s3, preheating a die: heating the mold for 6-8min to 170-200 ℃;
s4, feeding: putting the mixed raw materials in the step S2 into a die;
s5, demolding: blowing out the sealing ring by using an air gun, and removing clinker in the die cavity;
s6, detecting: removing defective sealing rings by visual inspection or mechanical inspection;
s7, packaging: and (5) placing the product into a packaging bag, and then placing the product into a box for preservation.
Compared with the prior art, the invention has the beneficial effects that:
the rubber sealing ring produced by the invention has excellent performances such as heat resistance, oil resistance, wear resistance, ageing resistance and the like, has very good enhancement on elongation at break, compression set performance and the like, greatly improves the comprehensive quality of the rubber sealing ring, and has great market competitiveness and popularization value.
Detailed Description
The following detailed description of the preferred embodiments of the invention will provide those skilled in the art with a better understanding of the invention with its advantages and features, and thus define the scope of the invention more clearly and clearly.
Example 1
The embodiment of the invention provides an anti-aging rubber sealing ring with high wear resistance, which comprises the following components in parts by weight: 85 parts of fluororubber, 22 parts of modified polybutyl acrylate, 3.5 parts of polytetrafluoroethylene, 7 parts of fibrous filler, 2.2 parts of vulcanizing agent, 19 parts of high styrene, 2.7 parts of stearic acid, 0.7 part of anti-aging agent, 4 parts of carbon black and 0.9 part of lubricant.
The preparation method of the anti-aging rubber sealing ring with high wear resistance is also provided, and comprises the following steps:
s1, proportioning: weighing the raw materials of the sealing ring for standby;
s2, mixing: mixing the raw materials weighed in the step S1;
s3, preheating a die: heating the die for 6min to 170 ℃;
s4, feeding: putting the mixed raw materials in the step S2 into a die;
s5, demolding: blowing out the sealing ring by using an air gun, and removing clinker in the die cavity;
s6, detecting: removing defective sealing rings by visual inspection or mechanical inspection;
s7, packaging: and (5) placing the product into a packaging bag, and then placing the product into a box for preservation.
Performance detection of the rubber sealing ring: the Shore A hardness is 62 degrees, the tensile strength is 23.7MPa, the 300% stretching stress is 7.9MPa, and the mass change rate is 1.35% and the volume change rate is 3.67% in an aging resistance experiment for 72 hours.
Example two
The embodiment of the invention provides an anti-aging rubber sealing ring with high wear resistance, which comprises the following components in parts by weight: 70 parts of fluororubber, 15 parts of modified polybutyl acrylate, 1 part of polytetrafluoroethylene, 5 parts of fibrous filler, 1 part of vulcanizing agent, 15 parts of high styrene, 2 parts of stearic acid, 0.5 part of anti-aging agent, 3 parts of carbon black and 0.5 part of lubricant.
The preparation method of the anti-aging rubber sealing ring with high wear resistance is also provided, and comprises the following steps:
s1, proportioning: weighing the raw materials of the sealing ring for standby;
s2, mixing: mixing the raw materials weighed in the step S1;
s3, preheating a die: heating the die for 7min to 180 ℃;
s4, feeding: putting the mixed raw materials in the step S2 into a die;
s5, demolding: blowing out the sealing ring by using an air gun, and removing clinker in the die cavity;
s6, detecting: removing defective sealing rings by visual inspection or mechanical inspection;
s7, packaging: and (5) placing the product into a packaging bag, and then placing the product into a box for preservation.
Performance detection of the rubber sealing ring: the Shore A hardness is 68 degrees, the tensile strength is 25.4MPa, the 300% stretching stress is 8.8MPa, and the mass change rate is 1.25% and the volume change rate is 3.67% in an aging resistance experiment for 72 hours.
Example III
The embodiment of the invention provides an anti-aging rubber sealing ring with high wear resistance, which comprises the following components in parts by weight: 90 parts of fluororubber, 25 parts of modified polybutyl acrylate, 5 parts of polytetrafluoroethylene, 10 parts of fibrous filler, 3 parts of vulcanizing agent, 30 parts of high styrene, 3 parts of stearic acid, 1 part of anti-aging agent, 5 parts of carbon black and 1.5 parts of lubricant.
The preparation method of the anti-aging rubber sealing ring with high wear resistance is also provided, and comprises the following steps:
s1, proportioning: weighing the raw materials of the sealing ring for standby;
s2, mixing: mixing the raw materials weighed in the step S1;
s3, preheating a die: heating the die for 8min to 190 ℃;
s4, feeding: putting the mixed raw materials in the step S2 into a die;
s5, demolding: blowing out the sealing ring by using an air gun, and removing clinker in the die cavity;
s6, detecting: removing defective sealing rings by visual inspection or mechanical inspection;
s7, packaging: and (5) placing the product into a packaging bag, and then placing the product into a box for preservation.
Performance detection of the rubber sealing ring: the Shore A hardness is 65 degrees, the tensile strength is 23.5MPa, the 300% stretching stress is 7.5MPa, and the mass change rate is 1.45% and the volume change rate is 3.68% in an anti-aging experiment for 72 hours.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (7)
1. An anti-aging rubber seal ring with high wear resistance is characterized in that: the rubber sealing ring consists of the following components in parts by weight: 70-90 parts of fluororubber, 15-25 parts of modified polybutyl acrylate, 1-5 parts of polytetrafluoroethylene, 5-10 parts of fibrous filler, 1-3 parts of vulcanizing agent, 15-30 parts of high styrene, 2-3 parts of stearic acid, 0.5-1 part of anti-aging agent, 3-5 parts of carbon black and 0.5-1.5 parts of lubricant.
2. The high wear resistant anti-aging rubber seal ring of claim 1, wherein: comprises the following components in parts by weight: 85 parts of fluororubber, 22 parts of modified polybutyl acrylate, 3.5 parts of polytetrafluoroethylene, 7 parts of fibrous filler, 2.2 parts of vulcanizing agent, 19 parts of high styrene, 2.7 parts of stearic acid, 0.7 part of anti-aging agent, 4 parts of carbon black and 0.9 part of lubricant.
3. The high wear resistant anti-aging rubber seal ring of claim 1, wherein: comprises the following components in parts by weight: 70 parts of fluororubber, 15 parts of modified polybutyl acrylate, 1 part of polytetrafluoroethylene, 5 parts of fibrous filler, 1 part of vulcanizing agent, 15 parts of high styrene, 2 parts of stearic acid, 0.5 part of anti-aging agent, 3 parts of carbon black and 0.5 part of lubricant.
4. The high wear resistant anti-aging rubber seal ring of claim 1, wherein: comprises the following components in parts by weight: 90 parts of fluororubber, 25 parts of modified polybutyl acrylate, 5 parts of polytetrafluoroethylene, 10 parts of fibrous filler, 3 parts of vulcanizing agent, 30 parts of high styrene, 3 parts of stearic acid, 1 part of anti-aging agent, 5 parts of carbon black and 1.5 parts of lubricant.
5. The high wear resistant anti-aging rubber seal ring according to claims 1-4, wherein: the modified polybutyl acrylate is prepared by modifying polybutyl acrylate with modified nanometer hectorite.
6. The high wear resistant anti-aging rubber seal ring according to claims 1-4, wherein: the lubricant is one or more of silicone oil, oleic acid, polyester or synthetic ester.
7. The method for preparing the high-wear-resistance anti-aging rubber sealing ring according to any one of claims 1 to 6, comprising the following steps:
s1, proportioning: weighing the raw materials of the sealing ring for standby;
s2, mixing: mixing the raw materials weighed in the step S1;
s3, preheating a die: heating the mold for 6-8min to 170-200 ℃;
s4, feeding: putting the mixed raw materials in the step S2 into a die;
s5, demolding: blowing out the sealing ring by using an air gun, and removing clinker in the die cavity;
s6, detecting: removing defective sealing rings by visual inspection or mechanical inspection;
s7, packaging: and (5) placing the product into a packaging bag, and then placing the product into a box for preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311065423.7A CN117209927A (en) | 2023-08-23 | 2023-08-23 | High-wear-resistance anti-aging rubber sealing ring and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311065423.7A CN117209927A (en) | 2023-08-23 | 2023-08-23 | High-wear-resistance anti-aging rubber sealing ring and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117209927A true CN117209927A (en) | 2023-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311065423.7A Pending CN117209927A (en) | 2023-08-23 | 2023-08-23 | High-wear-resistance anti-aging rubber sealing ring and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117209927A (en) |
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2023
- 2023-08-23 CN CN202311065423.7A patent/CN117209927A/en active Pending
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