CN109369989A - A kind of mixing rubber sealing ring and preparation method thereof - Google Patents
A kind of mixing rubber sealing ring and preparation method thereof Download PDFInfo
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- CN109369989A CN109369989A CN201811283732.0A CN201811283732A CN109369989A CN 109369989 A CN109369989 A CN 109369989A CN 201811283732 A CN201811283732 A CN 201811283732A CN 109369989 A CN109369989 A CN 109369989A
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- rubber
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of mixing rubber sealing rings and preparation method thereof.The sealing ring includes that base rubber, filler A and filler B are kneaded, and the weight ratio of the base rubber, filler A and filler B is 50-70:25-40:8-27；The base rubber is mixed by nitrile rubber, sandwich rubber and neoprene；The filler B includes following component according to parts by weight: 20-35 parts of stalk fibre, 2-8 parts of nano-titanium dioxide, 1-3 parts of maleic acid grafting agent, 5-6 parts of diatomite；The filler is mixed by antioxidant, activated zinc oxide, Universal carbon black, nanometer calcium carbonate, peroxide diisopropylbenzene (DIPB) and silicon powder.The mixing rubber sealing ring improves the application field of different rubber by being mixed with base rubber on the basis of three kinds of rubber.In addition, use two step vulcanizing treatments in preparation process, and sulfidation processes improve the weatherability of material using carrying out at a temperature of different.
Description
Technical field
The invention belongs to sealing ring preparation technical fields, and in particular to a kind of mixing rubber sealing ring and preparation method thereof.
Background technique
The circular cowling that rubber seal is made of one or several parts is fixed on the lasso or washer of bearing
On, and with another lasso or washer contacts or form narrow labyrinth clearance, effect is to prevent lubricating oil from leaking out and outer
Object intrusion.Rubber seal can be divided by its material: silicon rubber series, fluorubber series, polytetrafluoroethylene (PTFE) series, nitrile rubber
Series, chlorobutyronitrile series and ternary ethylene propylene rubber series column.But current rubber seal good mechanical properties, but weatherability
The rubber seal application field of difference, different series is limited, cannot popularize use.
Application number 201610760819.7 discloses a kind of sealing ring, belongs to technical field of polymer materials.Described is close
Seal includes the ingredient of following parts by weight: nitrile rubber: 100 parts, carbon black: 50-100 parts, modified carbon nano-tube: 2-5 parts, have
Machine zinc: 2-8 parts, age resister: 12-35 parts, vulcanizing agent: 3-8 parts.The carbon black is the mixing of spray carbon black and carbon black N330
Object.And it is formed by blanking, one section of mixing, two-stage mixing, processing and forming.Sealing ring of the invention is multiple on nitrile matrix
Make reinforcing agent with the carbon black for being added to modified carbon nano-tube, compounding, and is further added with machine zinc, the age resister of compounding, sulphur
Agent is made up of simple some processing technologys, further increases the wear-resisting of the comprehensive performance of sealing ring, especially sealing ring
Property, crush resistance.But the material cost is high, is not suitable for popularization and application.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of mixing rubber sealing ring and its preparation sides
The mechanical property of method, the sealing ring is good, wear-resistant, high temperature resistant.
A kind of mixing rubber sealing ring, including base rubber, filler A and filler B are kneaded, and the base rubber is filled out
The weight ratio for expecting A and filler B is 50-70:25-40:8-27；The base rubber is mixed by nitrile rubber, sandwich rubber and neoprene
It closes；The filler B includes following component according to parts by weight: 20-35 parts of stalk fibre, 2-8 parts of nano-titanium dioxide,
1-3 parts of maleic acid grafting agent, 5-6 parts of diatomite；The filler is by antioxidant, activated zinc oxide, Universal carbon black, nano-calcium carbonate
Calcium, peroxide diisopropylbenzene (DIPB) and silicon powder mix.
It is that the molar ratio of the base rubber kind nitrile rubber, sandwich rubber and neoprene is 5-8:1-3 as improved:
2-4。
It is that the filler B includes following component according to parts by weight: 30 part, nanometer two of stalk fibre as improved
6 parts of titanium oxide, 3 parts of maleic acid grafting agent, 6 parts of diatomite.
It is that the antioxidant is epoxidized soybean oil as improved.
The preparation method of above-mentioned mixing rubber sealing ring, comprising the following steps: step 1, weigh each component；Step 2, by straw
Stalk fiber, nano-titanium dioxide, maleic acid grafting agent and diatomite mixing, put into calcining furnace after calcining, are transferred in ball mill
It is ground to the mixture A of 200-300 mesh；Step 3, sound of chopping wood nitrile rubber, sandwich rubber, neoprene and peroxide diisopropylbenzene (DIPB) are put into close
Mixing 3-5 minutes in mill, adds antioxidant, activated zinc oxide, nanometer calcium carbonate and mediate 3-8 minutes, discharging is cooled to
Room temperature obtains mixture B；Step 4, mixture B is put into open mill, adds mixture A, Universal carbon black, silicon powder and mixing
Object B stirs and is sufficiently kneaded, obtains rubber compound semi-finished product；Step 5, rubber compound semi-finished product vulcanizing treatment 2-4 minutes, are transferred to mold
In, pressing mold molding.
It is that vulcanizing treatment is divided into two stages in step 5 as improved, first stage cure temperature is 120-180 DEG C,
Second stage curing temperature is 80-100 DEG C.
The utility model has the advantages that
Compared with prior art, the mixing rubber sealing ring corrosion resistance, good airproof performance and heat-resisting quantity, meanwhile, the present invention
Preparation method materials it is simple, by being mixed with base rubber on the basis of three kinds of rubber, improve answering for different rubber
Use field.In addition, two step vulcanizing treatments are used in preparation process, so that material content obtains vulcanizing treatment, and vulcanizing treatment
Process improves the weatherability of material using carrying out at a temperature of different.
Specific embodiment
The present invention is further described in detail below by specific embodiment.
Embodiment 1
A kind of mixing rubber sealing ring, including base rubber, filler A and filler B are kneaded, the base rubber, filler A and
The weight ratio of filler B is 50:25:8；The base rubber is mixed by nitrile rubber, sandwich rubber and neoprene；The filler
B includes following component according to parts by weight: 20 parts of stalk fibre, 2 parts of nano-titanium dioxide, 1 part of maleic acid grafting agent, diatom
5 parts of soil；The filler is micro- by epoxidized soybean oil, activated zinc oxide, Universal carbon black, nanometer calcium carbonate, peroxide diisopropylbenzene (DIPB) and silicon
Powder mixes.The additive amount of each component is according to the normal addition of existing formula in filler.
Wherein, the molar ratio of the base rubber kind nitrile rubber, sandwich rubber and neoprene is 5:1:2.It takes according to the proportion
After component, mixing processing in mixing furnace is put into.
The preparation method of above-mentioned mixing rubber sealing ring, comprising the following steps: step 1, weigh each component；Step 2, by straw
Stalk fiber, nano-titanium dioxide, maleic acid grafting agent and diatomite mixing, put into calcining furnace after calcining, are transferred in ball mill
It is ground to the mixture A of 200 mesh；Step 3, sound of chopping wood nitrile rubber, sandwich rubber, neoprene and peroxide diisopropylbenzene (DIPB) are put into mixer
Middle mixing 3 minutes adds antioxidant, activated zinc oxide, nanometer calcium carbonate and mediates 3 minutes, and discharging is cooled to room temperature mixed
Close object B；Step 4, mixture B is put into open mill, adds mixture A, Universal carbon black, silicon powder and mixture B, stirred
And be sufficiently kneaded, obtain rubber compound semi-finished product；Step 5, rubber compound semi-finished product vulcanizing treatment 2 minutes, are transferred in mold, are compression molded into
Type.
Wherein, vulcanizing treatment is divided into two stages in step 5, and first stage cure temperature is 120 DEG C, second stage vulcanization
Temperature is 80 DEG C.
To the performance detection of sealing ring, Shao Er A type hardness tester is 62 degree, tensile strength 23.6MPa, and 300% stress at definite elongation is
7.8MPa polishes 1 hour under 20000 turns, and wear rate only has 18%, and high temperature resistant reaches 208 DEG C.
Embodiment 2
A kind of mixing rubber sealing ring, including base rubber, filler A and filler B are kneaded, the base rubber, filler A and
The weight ratio of filler B is 68:35:20；The base rubber is mixed by nitrile rubber, sandwich rubber and neoprene；It is described to fill out
Expect that B includes following component according to parts by weight: 30 parts of stalk fibre, 6 parts of nano-titanium dioxide, 3 parts of maleic acid grafting agent, silicon
6 parts of diatomaceous earth；The filler is by epoxidized soybean oil, activated zinc oxide, Universal carbon black, nanometer calcium carbonate, peroxide diisopropylbenzene (DIPB) and silicon
Micro mist mixes.
Wherein, the molar ratio of the base rubber kind nitrile rubber, sandwich rubber and neoprene is 6:1:3.
The preparation method of above-mentioned mixing rubber sealing ring, comprising the following steps: step 1, weigh each component；Step 2, by straw
Stalk fiber, nano-titanium dioxide, maleic acid grafting agent and diatomite mixing, put into calcining furnace after calcining, are transferred in ball mill
It is ground to the mixture A of 280 mesh；Step 3, sound of chopping wood nitrile rubber, sandwich rubber, neoprene and peroxide diisopropylbenzene (DIPB) are put into mixer
Middle mixing 4 minutes adds antioxidant, activated zinc oxide, nanometer calcium carbonate and mediates 6 minutes, and discharging is cooled to room temperature mixed
Close object B；Step 4, mixture B is put into open mill, adds mixture A, Universal carbon black, silicon powder and mixture B, stirred
And be sufficiently kneaded, obtain rubber compound semi-finished product；Step 5, rubber compound semi-finished product vulcanizing treatment 3 minutes, are transferred in mold, are compression molded into
Type.
Wherein, vulcanizing treatment is divided into two stages in step 5, and first stage cure temperature is 150 DEG C, second stage vulcanization
Temperature is 90 DEG C.
To the performance detection of sealing ring, Shao Er A type hardness tester is 70 degree, tensile strength 24.6MPa, and 300% stress at definite elongation is
8.0MPa polishes 1 hour under 20000 turns, and wear rate only has 12%, and high temperature resistant reaches 210 DEG C.
Embodiment 3
A kind of mixing rubber sealing ring, including base rubber, filler A and filler B are kneaded, the base rubber, filler A and
The weight ratio of filler B is 70:40:27；The base rubber is mixed by nitrile rubber, sandwich rubber and neoprene；It is described to fill out
Expect that B includes following component according to parts by weight: 35 parts of stalk fibre, 8 parts of nano-titanium dioxide, 3 parts of maleic acid grafting agent, silicon
6 parts of diatomaceous earth；The filler is by epoxidized soybean oil, activated zinc oxide, Universal carbon black, nanometer calcium carbonate, peroxide diisopropylbenzene (DIPB) and silicon
Micro mist mixes.
Wherein, the molar ratio of the base rubber kind nitrile rubber, sandwich rubber and neoprene is 8:3:4.
The preparation method of above-mentioned mixing rubber sealing ring, comprising the following steps: step 1, weigh each component；Step 2, by straw
Stalk fiber, nano-titanium dioxide, maleic acid grafting agent and diatomite mixing, put into calcining furnace after calcining, are transferred in ball mill
It is ground to the mixture A of 200-300 mesh；Step 3, sound of chopping wood nitrile rubber, sandwich rubber, neoprene and peroxide diisopropylbenzene (DIPB) are put into close
Mixing 3-5 minutes in mill, adds antioxidant, activated zinc oxide, nanometer calcium carbonate and mediate 3-8 minutes, discharging is cooled to
Room temperature obtains mixture B；Step 4, mixture B is put into open mill, adds mixture A, Universal carbon black, silicon powder and mixing
Object B stirs and is sufficiently kneaded, obtains rubber compound semi-finished product；Step 5, rubber compound semi-finished product vulcanizing treatment 2-4 minutes, are transferred to mold
In, pressing mold molding.
Wherein, vulcanizing treatment is divided into two stages in step 5, and first stage cure temperature is 180 DEG C, second stage vulcanization
Temperature is 100 DEG C.
To the performance detection of sealing ring, Shao Er A type hardness tester is 65 degree, tensile strength 22.5MPa, and 300% stress at definite elongation is
7.0MPa polishes 1 hour under 20000 turns, and wear rate only has 16%, and high temperature resistant reaches 198 DEG C.
Comparative example 1
Vulcanisation processing is changed to outside step progress, remaining is the same as embodiment 2.
To the performance detection of sealing ring, Shao Er A type hardness tester is 52 degree, tensile strength 23.6MPa, and 300% stress at definite elongation is
5.6MPa polishes 1 hour under 20000 turns, and wear rate only has 18%, and high temperature resistant reaches 150 DEG C.
It can be seen that the mixing rubber sealing ring corrosion resistance, good airproof performance and heat-resisting quantity in from the above, together
When, preparation method materials of the invention are simple, and preparation process is easy to operate, and preparation cost is lower.In addition, being used in preparation process
Two step vulcanizing treatments, so that material content obtains vulcanizing treatment, and sulfidation processes are mentioned using carrying out at a temperature of different
The high weatherability of material.
The foregoing is only a preferred embodiment of the present invention, the scope of protection of the present invention is not limited to this, it is any ripe
Know those skilled in the art within the technical scope of the present disclosure, the letter for the technical solution that can be become apparent to
Altered or equivalence replacement are fallen within the protection scope of the present invention.
Claims (6)
1. a kind of mixing rubber sealing ring, which is characterized in that be kneaded including base rubber, filler A and filler B, the base
The weight ratio of plinth rubber, filler A and filler B is 50-70:25-40:8-27；The base rubber by nitrile rubber, sandwich rubber and
Neoprene mixes；The filler B includes following component according to parts by weight: 20-35 parts of stalk fibre, nanometer titanium dioxide
2-8 parts of titanium, 1-3 parts of maleic acid grafting agent, 5-6 parts of diatomite；The filler by antioxidant, activated zinc oxide, Universal carbon black,
Nanometer calcium carbonate, peroxide diisopropylbenzene (DIPB) and silicon powder mix.
2. a kind of mixing rubber sealing ring according to claim 1, which is characterized in that the base rubber kind butyronitrile rubber
The molar ratio of glue, sandwich rubber and neoprene is 5-8:1-3:2-4.
3. a kind of mixing rubber sealing ring according to claim 1, which is characterized in that the filler B includes below by weight
Measure the component of number meter: 30 parts of stalk fibre, 6 parts of nano-titanium dioxide, 3 parts of maleic acid grafting agent, 6 parts of diatomite.
4. a kind of mixing rubber sealing ring according to claim 1, which is characterized in that the antioxidant is epoxy soybean
Oil.
5. the preparation method based on mixing rubber sealing ring described in claim 1, which comprises the following steps: step
Rapid 1, weigh each component；Step 2, stalk fibre, nano-titanium dioxide, maleic acid grafting agent and diatomite are mixed, investment is forged
It burns after being calcined in furnace, is transferred to the mixture A for being ground to 200-300 mesh in ball mill；Step 3, by sound of chopping wood nitrile rubber, sandwich rubber,
Mixing 3-5 minutes in neoprene and peroxide diisopropylbenzene (DIPB) investment mixer, antioxidant, activated zinc oxide, nano-sized carbon are added
Sour calcium is mediated 3-8 minutes, and discharging is cooled to room temperature to obtain mixture B；Step 4, mixture B is put into open mill, is added mixed
Object A, Universal carbon black, silicon powder and mixture B are closed, stir and is sufficiently kneaded, rubber compound semi-finished product are obtained；Step 5, rubber compound half at
It product vulcanizing treatment 2-4 minutes, is transferred in mold, pressing mold molding.
6. a kind of preparation method of mixing rubber sealing ring according to claim 5, which is characterized in that vulcanize in step 5
Processing is divided into two stages, and first stage cure temperature is 120-180 DEG C, and second stage curing temperature is 80-100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283732.0A CN109369989A (en) | 2018-10-31 | 2018-10-31 | A kind of mixing rubber sealing ring and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283732.0A CN109369989A (en) | 2018-10-31 | 2018-10-31 | A kind of mixing rubber sealing ring and preparation method thereof |
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| CN109369989A true CN109369989A (en) | 2019-02-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963665A (en) * | 1974-09-25 | 1976-06-15 | Sun Oil Company Of Pennsylvania | Novel conveyor belts for transporting tar sands |
| CN104592607A (en) * | 2015-01-30 | 2015-05-06 | 柳州市颖航汽配有限公司 | Anti-fatigue and antioxidant rubber material for sealing automobile hydraulic system and preparation method of anti-fatigue and antioxidant rubber material |
| CN106810731A (en) * | 2017-01-13 | 2017-06-09 | 安徽斯瑞尔阀门有限公司 | A kind of gate valve rod rubber sealing ring sizing material and preparation method thereof |
| CN108641146A (en) * | 2018-04-04 | 2018-10-12 | 史国民 | A kind of oil resistant rubber sealing member material and preparation method thereof |
-
2018
- 2018-10-31 CN CN201811283732.0A patent/CN109369989A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963665A (en) * | 1974-09-25 | 1976-06-15 | Sun Oil Company Of Pennsylvania | Novel conveyor belts for transporting tar sands |
| CN104592607A (en) * | 2015-01-30 | 2015-05-06 | 柳州市颖航汽配有限公司 | Anti-fatigue and antioxidant rubber material for sealing automobile hydraulic system and preparation method of anti-fatigue and antioxidant rubber material |
| CN106810731A (en) * | 2017-01-13 | 2017-06-09 | 安徽斯瑞尔阀门有限公司 | A kind of gate valve rod rubber sealing ring sizing material and preparation method thereof |
| CN108641146A (en) * | 2018-04-04 | 2018-10-12 | 史国民 | A kind of oil resistant rubber sealing member material and preparation method thereof |
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Application publication date: 20190222 |