CN108239311A - A kind of Large Hydraulic Equipment extended life seal circle - Google Patents
A kind of Large Hydraulic Equipment extended life seal circle Download PDFInfo
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- CN108239311A CN108239311A CN201810095143.3A CN201810095143A CN108239311A CN 108239311 A CN108239311 A CN 108239311A CN 201810095143 A CN201810095143 A CN 201810095143A CN 108239311 A CN108239311 A CN 108239311A
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- carbon nanotube
- hydraulic equipment
- extended life
- large hydraulic
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of Large Hydraulic Equipment extended life seal circles, are made from the following raw materials in parts by weight：Nitrile rubber 80 120, high abrasion furnace black 100 120,35 parts of multi-walled carbon nanotube, insoluble sulfur 0.5 1,13 parts of tetra-benzyl thiram disulfide, 2 benzothiazolyl sulfenamide 13 of N cyclohexyls, 58 parts of indirect process zinc oxide, stearic acid 12,2,2, polymer 1.5 3, Thiourea antiozonant 1.5 3, trioctyl trimellitate (TOTM) 5 15, saturation isomerism alkane 12, the polyunsaturated fatty acid ester 1.5 3 of 4 trimethyl, 1,2 dihyaroquinoline.The present invention has the characteristics that hydraulic pressure resistant oil, high temperature resistant, low temperature resistant, high pressure resistant, wear-resisting, resistance to ozone relative to common sealing ring, and with sealed reliable, high/low temperature is in extensive range, strong applicability, long lifespan, it is environmentally friendly the advantages that.
Description
Technical field
The present invention relates to technical field of rubber material more particularly to a kind of Large Hydraulic Equipment extended life seal circles.
Background technology
China all produces a large amount of manufactured consumer goods every year as a manufacture big country, industrial power.And manufacture these works
The equipment of the industry consumer goods also gradually realizes the transformation from import to production domesticization.In these production equipments, hydraulic test or portion
Part is a critically important component part.It is especially big to these hydraulic tests with the continuous improvement of China's industrialized level
The requirement of type hydraulic test also increasingly increases.Sealing ring as hydraulic test key component to the realization of hydraulic function and from the service life
To very crucial effect.Or this type component of the country increases cost, and be limited by key technology using import at present
People or the material using some low sides, cause the hydraulic test service life low, Frequent Troubles influence quality and image.Especially in recent years
Carry out the enhancing of environmental consciousness, some materials not environmentally are also used in gradual limitation.With the proposition of the requirement of " strong basic part ",
Developing a kind of extended life seal loop material of Large Hydraulic Equipment just seems more important.
Invention content
For it is existing the problem of, it is an object of the invention to propose a kind of Large Hydraulic Equipment extended life seal circle, should
Sealing ring will have sealed reliable, strong applicability, long lifespan, it is environmentally friendly the features such as.
The present invention is achieved by the following technical solutions：
A kind of Large Hydraulic Equipment extended life seal circle, is made from the following raw materials in parts by weight：Nitrile rubber 80-120, height are resistance to
Grind furnace black 100-120,3-5 parts of multi-walled carbon nanotube, insoluble sulfur 0.5-1,1-3 parts of tetra-benzyl thiram disulfide, N- rings
Hexyl -2-[4-morpholinodithio base sulfenamide 1-3,5-8 parts of indirect process zinc oxide, stearic acid 1-2,2,2,4- trimethyl -1,2-
Polymer 1.5-3, Thiourea antiozonant 1.5-3, trioctyl trimellitate (TOTM) 5-15, the saturation isomerism alkane 1- of dihyaroquinoline
2nd, polyunsaturated fatty acid ester 1.5-3.
A kind of Large Hydraulic Equipment extended life seal circle, in above-mentioned raw materials component, the acrylonitrile content in nitrile rubber
It is 18%, Mooney viscosity 40.
A kind of Large Hydraulic Equipment extended life seal circle, in above-mentioned raw materials component, multi-walled carbon nanotube is needed by table
Face is modified, and specific surface modification step is as follows：（1）Multi-walled carbon nanotube is added in the 80-100 times of concentrated sulfuric acid measured, is placed in
It is ultrasonically treated 2-3 hours in the processor for ultrasonic wave of 40Khz, spherical condensating tube and device for absorbing tail gas is then loaded onto, in 120-
It is stirred to react at 130 DEG C 90-120 minutes, cools down, diluted with deionized water after reaction, repeatedly until washing to neutrality again
Then sample is positioned in vacuum drying chamber dry, the multi-walled carbon nanotube aoxidized by filtering；（2）By the multi wall of oxidation
Carbon nanotube is added in the 80-100 times of deionized water measured, ultrasonic disperse 60-90 minutes, and Nanotube quality 50% is then added dropwise
Silane coupling agent KH-304 is warming up to 40-45 DEG C after being added dropwise, reflux condensation mode stirs 10-12 hours, centrifuges after completion of the reaction
Separation, upper liquid is removed, obtains black precipitate, black precipitate is washed, be placed in vacuum drying chamber dry to get
Surface modified multiwalled carbon nanotube.
A kind of Large Hydraulic Equipment extended life seal circle, is prepared by step in detail below：
（1）Each raw material is sent into mixing in mixer, 70-100 DEG C of temperature control according to composition of raw materials, mixing 4-7 minutes is synthesized
Rubber；
（2）By step（1）Obtained synthetic rubber is in open mill, 60-70 DEG C of temperature control, and mill is molded for 5-7 minutes；
（3）Mill rubber after molding is put into vulcanizing equipment, in pressure 170-190Kgf/cm2,170-180 DEG C of temperature
Under the conditions of carry out vulcanizing treatment, vulcanization time is 20-30 minutes.
The preparation method of a kind of Large Hydraulic Equipment extended life seal circle, in step（1）One should also be included after the completion
Step is detected the hardness, intensity and elongation of the synthetic rubber, hardness is 90 ± 5 degree, intensity >=18MPa,
The synthetic rubber of elongation >=100% is qualified synthetic rubber, and the qualified synthetic rubber for meeting above-mentioned condition is entered step
（2）.
The concrete operations for carrying out deburring, inspection, packaging and storage after vulcanizing treatment to sealing ring have been the technology of this field
Personnel are known that details are not described herein.
It is an advantage of the invention that：Large Hydraulic Equipment is obtained by scientific and reasonable composition proportion in the present invention and uses the long-life
The material mixture ratio of sealing ring, by prepare, be molded and vulcanizing treatment after, obtained Large Hydraulic Equipment sealing ring has resistance to
The features such as hydraulic oil, high temperature resistant, low temperature resistant, high pressure resistant, wear-resisting, resistance to ozone, relative to common sealing ring, has sealed reliable,
High/low temperature is in extensive range, strong applicability, long lifespan, it is environmentally friendly the advantages that.
Specific embodiment
Several preferred embodiments of the present invention are described below, but are not limited to the present invention, it is any to include the present invention
Within the technical solution of technical thought all belongs to the scope of protection of the present invention.
Embodiment 1
The present invention proposes a kind of Large Hydraulic Equipment extended life seal circle, and raw material components and mass parts ratio are as follows：
100 parts of nitrile rubber, 100 parts of high abrasion furnace black, 5 parts of multi-walled carbon nanotube, 1 part of insoluble sulfur, curing tetrabenzyl
1 part of thiuram, N- cyclohexyls -3 parts of 2-[4-morpholinodithio base sulfenamide, 5 parts of indirect process zinc oxide, 1 part of stearic acid, 2,2,4-
The polymer of trimethyl -1,2- dihyaroquinoline, 1.5 parts, 3 parts of Thiourea antiozonant, 5 parts of trioctyl trimellitate (TOTM), saturation
2 parts of isoparaffin, 3 parts of polyunsaturated fatty acid ester.
Preferably, in said components, the acrylonitrile content in the nitrile rubber is 18%, Mooney viscosity 40.
Preferably, in said components, multi-walled carbon nanotube needs to be modified by surface, and specific surface modification step is such as
Under：（1）Multi-walled carbon nanotube is added in the concentrated sulfuric acid of 100 times of amounts, be placed in the processor for ultrasonic wave of 40Khz and be ultrasonically treated 2
Hour, spherical condensating tube and device for absorbing tail gas are then loaded onto, is stirred to react at 130 DEG C 120 minutes, it is cold after reaction
But, it being diluted with deionized water, washing repeatedly refilters until neutral, and sample then is positioned over drying in vacuum drying chamber,
The multi-walled carbon nanotube aoxidized；（2）The multi-walled carbon nanotube of oxidation is added in the deionized water of 100 times of amounts, ultrasound point
It dissipates 60 minutes, the silane coupling agent KH-304 of Nanotube quality 50% is then added dropwise, 40 DEG C are warming up to after being added dropwise, returned cold
Solidifying stirring 10 hours, centrifuges, upper liquid is removed, obtain black precipitate, black precipitate is washed after completion of the reaction,
It is placed in vacuum drying chamber and dries to get surface modified multiwalled carbon nanotube.
The preparation method of a kind of Large Hydraulic Equipment extended life seal circle, including step in detail below：
（1）Each raw material is sent into mixing in mixer according to composition of raw materials, 100 DEG C of temperature control, pressure control 100Kgf/cm2, mixing 4 divides
Clock obtains synthetic rubber, and the hardness, intensity and elongation of the synthetic rubber are detected, filtered after detection, hardness is
91 degree, intensity 21MPa, the synthetic rubber that elongation is 160% is qualified synthetic rubber, will meet the qualification of above-mentioned condition
Synthetic rubber enter step（2）；
（2）By step（1）In open mill, 60 DEG C of temperature control, mill is molded obtained synthetic rubber for 5 minutes；
（3）Mill rubber after molding is put into vulcanizing equipment, in pressure 170Kgf/cm2, the condition of 170-180 DEG C of temperature
Lower carry out vulcanizing treatment, vulcanization time are 20 minutes.To the product after vulcanization, carry out deburring and size, appearance are carried out
It examines, obtains qualified Large Hydraulic Equipment extended life seal circle finished product.
Embodiment 2
The present invention proposes a kind of Large Hydraulic Equipment extended life seal circle, and raw material components and mass parts ratio are as follows：
100 parts of nitrile rubber, 120 parts of high abrasion furnace black, 3 parts of multi-walled carbon nanotube, 0.8 part of insoluble sulfur, four benzyl of curing
2 parts of base thiuram, N- cyclohexyls -2 parts of 2-[4-morpholinodithio base sulfenamide, 5 parts of indirect process zinc oxide, 1 part of stearic acid, 2,2,
10 parts of 2 parts of 2 parts of polymer, Thiourea antiozonant, the trioctyl trimellitate (TOTM) of 4- trimethyl -1,2- dihyaroquinolines, saturation
1 part of isoparaffin, 2 parts of polyunsaturated fatty acid ester.
Preferably, in said components, the acrylonitrile content in the nitrile rubber is 18%, Mooney viscosity 40.
Preferably, in said components, multi-walled carbon nanotube needs to be modified by surface, and specific surface modification step is such as
Under：（1）Multi-walled carbon nanotube is added in the concentrated sulfuric acid of 100 times of amounts, be placed in the processor for ultrasonic wave of 40Khz and be ultrasonically treated 2
Hour, spherical condensating tube and device for absorbing tail gas are then loaded onto, is stirred to react at 130 DEG C 120 minutes, it is cold after reaction
But, it being diluted with deionized water, washing repeatedly refilters until neutral, and sample then is positioned over drying in vacuum drying chamber,
The multi-walled carbon nanotube aoxidized；（2）The multi-walled carbon nanotube of oxidation is added in the deionized water of 100 times of amounts, ultrasound point
It dissipates 60 minutes, the silane coupling agent KH-304 of Nanotube quality 50% is then added dropwise, 40 DEG C are warming up to after being added dropwise, returned cold
Solidifying stirring 10 hours, centrifuges, upper liquid is removed, obtain black precipitate, black precipitate is washed after completion of the reaction,
It is placed in vacuum drying chamber and dries to get surface modified multiwalled carbon nanotube.
The preparation method of a kind of Large Hydraulic Equipment extended life seal circle, including step in detail below：
Step（1）, all raw materials are sent into mixer according to formula, obtain synthetic rubber, hardness to the synthetic rubber,
Intensity and elongation are detected, and are filtered after detection, and hardness is 90 degree, intensity 19.5MPa, and elongation is 171% synthesis
Rubber is qualified synthetic rubber, and the qualified synthetic rubber for meeting above-mentioned condition is entered step（2）；
Step（2）, above-mentioned synthetic rubber is subjected to mill molding in open mill, temperature is 65 DEG C；
Step（3）, mill rubber after molding is put into vulcanizing equipment, pressure is 180Kgf/cm2, temperature is 180 DEG C
Under the conditions of carry out vulcanizing treatment, vulcanization time is 20 minutes.To the product after vulcanization, deburring is carried out, and size, appearance are carried out
It examines, obtains qualified Large Hydraulic Equipment extended life seal circle finished product.
Embodiment 3
The present invention proposes a kind of Large Hydraulic Equipment extended life seal circle, and raw material components and mass parts ratio are as follows：
120 parts of nitrile rubber, 120 parts of high abrasion furnace black, 4 parts of multi-walled carbon nanotube, 0.6 part of insoluble sulfur, four benzyl of curing
1 part of base thiuram, N- cyclohexyls -3 parts of 2-[4-morpholinodithio base sulfenamide, 7 parts of indirect process zinc oxide, 1.5 parts of stearic acid, 2,
1.5 parts of 1.5 parts of polymer, Thiourea antiozonant, the trioctyl trimellitate (TOTM) 15 of 2,4- trimethyl -1,2- dihyaroquinolines
Part, 2 parts of saturation isomerism alkane, 1 part of polyunsaturated fatty acid ester.
Preferably, in said components, the acrylonitrile content in the nitrile rubber is 18%, Mooney viscosity 40.
Preferably, in said components, multi-walled carbon nanotube needs to be modified by surface, and specific surface modification step is such as
Under：（1）Multi-walled carbon nanotube is added in the concentrated sulfuric acid of 100 times of amounts, be placed in the processor for ultrasonic wave of 40Khz and be ultrasonically treated 2
Hour, spherical condensating tube and device for absorbing tail gas are then loaded onto, is stirred to react at 130 DEG C 120 minutes, it is cold after reaction
But, it being diluted with deionized water, washing repeatedly refilters until neutral, and sample then is positioned over drying in vacuum drying chamber,
The multi-walled carbon nanotube aoxidized；（2）The multi-walled carbon nanotube of oxidation is added in the deionized water of 100 times of amounts, ultrasound point
It dissipates 60 minutes, the silane coupling agent KH-304 of Nanotube quality 50% is then added dropwise, 40 DEG C are warming up to after being added dropwise, returned cold
Solidifying stirring 10 hours, centrifuges, upper liquid is removed, obtain black precipitate, black precipitate is washed after completion of the reaction,
It is placed in vacuum drying chamber and dries to get surface modified multiwalled carbon nanotube.
The preparation method of a kind of Large Hydraulic Equipment extended life seal circle, including step in detail below：
Step（1）, all raw materials are sent into mixer according to formula, obtain synthetic rubber, hardness to the synthetic rubber,
Intensity and elongation are detected, and are filtered after detection, and hardness is 89 degree, intensity 21.9MPa, and elongation is 186% conjunction
It is qualified synthetic rubber into rubber, the qualified synthetic rubber for meeting above-mentioned condition is entered step（2）；
Step（2）, above-mentioned synthetic rubber is subjected to mill molding in open mill, temperature is 70 DEG C；
Step（3）, mill rubber after molding is put into vulcanizing equipment, pressure is 170Kgf/cm2, temperature is 170 DEG C
Under the conditions of carry out vulcanizing treatment, vulcanization time is 30 minutes.To the product after vulcanization, deburring is carried out, and size, appearance are carried out
It examines, obtains qualified Large Hydraulic Equipment extended life seal circle finished product.
It was verified that Large Hydraulic Equipment made of material according to the invention proportioning has sealed reliable with sealing ring,
High/low temperature is in extensive range, strong applicability, long lifespan, it is environmentally friendly the advantages that.
Claims (3)
1. a kind of Large Hydraulic Equipment extended life seal circle, which is characterized in that be made from the following raw materials in parts by weight：Butyronitrile rubber
Glue 80-120, high abrasion furnace black 100-120,3-5 parts of multi-walled carbon nanotube, insoluble sulfur 0.5-1, curing tetrabenzyl autumn are blue
1-3 parts of nurse, N- cyclohexyls -2-[4-morpholinodithio base sulfenamide 1-3,5-8 parts of indirect process zinc oxide, stearic acid 1-2,2,2,4-
The polymer 1.5-3 of trimethyl -1,2- dihyaroquinolines, Thiourea antiozonant 1.5-3, trioctyl trimellitate (TOTM) 5-15, satisfy
With isoparaffin 1-2, polyunsaturated fatty acid ester 1.5-3.
A kind of 2. Large Hydraulic Equipment extended life seal circle according to claim 1, which is characterized in that above-mentioned raw materials group
In point, the acrylonitrile content in nitrile rubber is 18%, Mooney viscosity 40.
A kind of 3. Large Hydraulic Equipment extended life seal circle according to claim 1, which is characterized in that above-mentioned raw materials group
In point, multi-walled carbon nanotube needs to be modified by surface, and specific surface modification step is as follows：（1）By multi-walled carbon nanotube plus
Enter in the 80-100 times of concentrated sulfuric acid measured, be placed in the processor for ultrasonic wave of 40Khz and be ultrasonically treated 2-3 hours, then load onto ball-type
Condenser pipe and device for absorbing tail gas are stirred to react 90-120 minutes at 120-130 DEG C, cool down after reaction, with deionization
Water dilutes, and washing repeatedly refilters until neutral, sample then is positioned over drying in vacuum drying chamber, what is aoxidized is more
Wall carbon nano tube；（2）The multi-walled carbon nanotube of oxidation is added in the 80-100 times of deionized water measured, 60-90 points of ultrasonic disperse
Then clock is added dropwise the silane coupling agent KH-304 of Nanotube quality 50%, 40-45 DEG C is warming up to after being added dropwise, reflux condensation mode stirs
It mixes 10-12 hours, centrifuges after completion of the reaction, upper liquid is removed, obtain black precipitate, black precipitate is washed,
It is placed in vacuum drying chamber and dries to get surface modified multiwalled carbon nanotube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095143.3A CN108239311A (en) | 2018-01-31 | 2018-01-31 | A kind of Large Hydraulic Equipment extended life seal circle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095143.3A CN108239311A (en) | 2018-01-31 | 2018-01-31 | A kind of Large Hydraulic Equipment extended life seal circle |
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| CN108239311A true CN108239311A (en) | 2018-07-03 |
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| CN201810095143.3A Pending CN108239311A (en) | 2018-01-31 | 2018-01-31 | A kind of Large Hydraulic Equipment extended life seal circle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942918A (en) * | 2019-04-02 | 2019-06-28 | 合肥核舟电子科技有限公司 | A kind of high-frequency electromagnetic valve nitrile rubber gasket and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396589A (en) * | 2013-08-08 | 2013-11-20 | 中国石油化工股份有限公司 | Rubber sealing ring |
-
2018
- 2018-01-31 CN CN201810095143.3A patent/CN108239311A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396589A (en) * | 2013-08-08 | 2013-11-20 | 中国石油化工股份有限公司 | Rubber sealing ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942918A (en) * | 2019-04-02 | 2019-06-28 | 合肥核舟电子科技有限公司 | A kind of high-frequency electromagnetic valve nitrile rubber gasket and preparation method thereof |
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Application publication date: 20180703 |