CN110218455A - A kind of low compression set rubber roller silicon rubber and preparation method thereof - Google Patents
A kind of low compression set rubber roller silicon rubber and preparation method thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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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
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
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- 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
- 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
- C08K2003/267—Magnesium 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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
A kind of low compression set rubber roller silicon rubber and preparation method thereof, each component include: 100 parts of silicon rubber, 20-70 parts of white carbon black, 15-50 parts of filler, 1-3 parts of antistructurizing agent, 2-6 parts of heat-resistant agent, 0.1-1 parts of coupling agent and 0.1-1 parts of release agent according to amount number proportion.In the present invention, rubber roller silicon rubber quality is stablized, and possesses excellent ageing-resistant performance, mechanical property, physical property and chemical property, using effect is good.Simultaneously, rubber roller silicon rubber preparation method is simple, technique is convenient, strong operability, quality are stablized, and practical, solve the problems, such as that the resistance to temperature difference of existing rubber roller silicon rubber, compression set are high, the modes such as silicon rubber collocation, powder selection and processing are carried out it is multiple modified, in the case where meeting high-intensitive, Splitting, the features such as compression set is small, aging conservation rate is high.
Description
Technical field
The present invention relates to rubber roller fields more particularly to a kind of low compression set rubber roller silicon rubber and preparation method thereof.
Background technique
Rubber roller is usually the material cores such as metal, the rubber-coated and manufactured roll product in outside.The rubber material of outside cladding
Material is different, and rubber roller characteristic is also different, and purposes is also different.
Rubber roller can be divided into natural rubber roller, butyl rubber roller, butyronitrile rubber roller, neoprene rubber roller, the third rubber roller of second, fluorubber by material
Roller, polyurethane rubber roller and silicone rubber roll and carbon fiber roller etc..Wherein, silica gel roller has good high temperature resistant, high pressure resistant, resistance to
Ozone, chemical inertness and the non-adhesiveness to plastics, are processed to high temperature and hot sticky product.
In recent years, silicone rubber roll dosage is increasing, but because of domestic technique weak, related fields technological accumulation is not
Foot, silica gel rubber roller always exist the defects of service life is short, product stability is poor.It is analyzed, causes the main original of disadvantages described above
Cause is the poor heat resistance of rubber roller silicon rubber, and compression set is poor.
Therefore, how to solve the problems, such as that the resistance to temperature difference of existing rubber roller silicon rubber, compression set are high, be to need what is solved to ask
Topic.
Summary of the invention
(1) goal of the invention
To solve technical problem present in background technique, the present invention proposes a kind of low compression set rubber roller silicon rubber
And preparation method thereof, solve the problems, such as that the resistance to temperature difference of existing rubber roller silicon rubber, compression set are high；The present invention takes silicon rubber
Match, the modes such as powder selection and processing carry out multiple modified, in the case where meeting high-intensitive, Splitting, compression set is small, old
Change the features such as conservation rate is high.
(2) technical solution
To solve the above problems, each component is according to amount the present invention provides a kind of low compression set rubber roller silicon rubber
Number proportion includes: 100 parts of silicon rubber, 20-70 parts of white carbon black, 15-50 parts of filler, 1-3 parts of antistructurizing agent, heat-resistant agent
2-6 parts, 0.1-1 parts of coupling agent and 0.1-1 parts of release agent.
Preferably, silicon rubber includes the methyl vinyl silicone rubber and 70- of 800,000 or more the molecular weight of 0-30phr
The methyl vinyl silicone rubber of 100phr molecular weight 50-70 ten thousand.
Preferably, silicon rubber is ethenyl blocking silicon rubber；The molecular weight of ethenyl blocking silicon rubber is 80-100 ten thousand, second
Amount vinyl content is 0.03%-0.15%.
Preferably, silicon rubber is ethenyl blocking silicon rubber；The molecular weight 50-70 ten thousand of ethenyl blocking silicon rubber, second
Amount vinyl content is 0.16%-1.0%.
Preferably, silicon rubber includes composition A and composition B；Composition A is 75phr molecular weight 600,000, contents of ethylene
0.22% raw rubber；Composition B is the raw rubber of 25phr molecular weight 900,000, contents of ethylene 0.04%；
Alternatively, silicon rubber includes composition A, composition B and composition C；Composition A is 65phr molecular weight 600,000, ethylene
The raw rubber of base content 0.16%；Composition B is the raw rubber of 20phr molecular weight 800,000, contents of ethylene 0.03%；Composition C is
The raw rubber of 15phr molecular weight 600,000, contents of ethylene 1.0%.
Preferably, white carbon black is precipitated silica, and white carbon black handled by different type silane coupling agent it is hydrophobic
Type white carbon black；The specific surface area of white carbon black is 180m2/ g or more.
Preferably, filler is light magnesium oxide, magnesium carbonate, calcium carbonate, ultrafine quartz powder, diatomite and treated silicon
One of micro mist is a variety of；
Antistructurizing agent is hydroxy silicon oil, methoxyl group silicone oil, triethanolamine borate, vinyl silicone oil or containing hydrogen silicone oil
One of or it is a variety of；
Heat-resistant agent is one of rice titanium dioxide, nano aluminium oxide or rare earth composite heat resistance agent or a variety of；
Release agent is stearate, boric acid or and one of borate compound or a variety of.
The present invention, according to above-mentioned low compression set rubber roller silicon rubber, it is also proposed that a kind of to contract forever about above-mentioned low pressure
The preparation method of deformation rubber roller silicon rubber long, comprising the following steps:
S1: the selection and collocation of raw rubber；
S2: the selection and processing of white carbon black；
S3: source fillings processing；
S4: the refining and processing of rubber compound；Wherein, the refining of rubber compound includes the mill and mixing of fluorubber and silicon rubber
The kneading of glue；
In rubber compound kneading process, raw rubber, white carbon black, coupling agent, antistructurizing agent, filler and demoulding are successively put into
Agent；Wherein, coupling agent treatment processing and high-temperature calcination processing are carried out before filler investment；
The treatment process of rubber compound includes high-temperature process and vacuumize process and subsequent back mixing process；
S5: filtering；
S6: finished product packing.
Preferably, the heat treatment temperature of rubber compound is 140-180 DEG C, and heat treatment time 30-180min, vacuum degree is negative
Press 0.04- negative pressure 0.1MPa.
Preferably, in S5, when filtering, strainer mesh number is 150-200 mesh, and strainer is arranged 1 layer or 2 layers.
Above-mentioned technical proposal of the invention has following beneficial technical effect:
In the present invention, rubber roller silicon rubber quality is stablized, and 180 DEG C of * 22H compression sets possess excellent less than 10%
Ageing-resistant performance, strength retention, elongation at break conservation rate, tearing conservation rate are all larger than after 230 DEG C of * 72H agings
In 60%；Rubber roller silicon rubber possesses excellent mechanical property, and tensile strength is greater than 6MPa, stretches rate and is greater than 200%, tearing strength
Greater than 12kN/mm.Rubber roller silicon rubber has excellent physical property and chemical property, and using effect is good.
In the present invention, rubber roller silicon rubber preparation method is simple, and technique is convenient, strong operability, and quality is stablized, and practicability
By force, solve the problems, such as that the resistance to temperature difference of existing rubber roller silicon rubber, compression set are high, to silicon rubber collocation, powder selection and processing
Etc. modes carry out it is multiple modified, in the case where meeting high-intensitive, Splitting, the features such as compression set is small, aging conservation rate is high.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment, to this
Invention is further described.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the invention.This
Outside, in the following description, descriptions of well-known structures and technologies are omitted, so as not to unnecessarily obscure the concept of the present invention.
A kind of low compression set rubber roller silicon rubber proposed by the present invention and preparation method thereof, each component is according to amount number
Proportion includes: 100 parts of silicon rubber, 20-70 parts of white carbon black, 15-50 parts of filler, 1-3 parts of antistructurizing agent, heat-resistant agent 2-6
Part, 0.1-1 parts of coupling agent and 0.1-1 parts of release agent.
In the present invention, rubber roller silicon rubber quality is stablized, and 180 DEG C of * 22H compression sets possess excellent less than 10%
Ageing-resistant performance, strength retention, elongation at break conservation rate, tearing conservation rate are all larger than after 230 DEG C of * 72H agings
In 60%；Rubber roller silicon rubber possesses excellent mechanical property, and tensile strength is greater than 6MPa, stretches rate and is greater than 200%, tearing strength
Greater than 12kN/mm.Rubber roller silicon rubber has excellent physical property and chemical property, and using effect is good.
In an alternative embodiment, silicon rubber includes the methyl ethylene silicon of 800,000 or more the molecular weight of 0-30phr
The methyl vinyl silicone rubber of rubber and 70-100phr molecular weight 50-70 ten thousand.
In an alternative embodiment, silicon rubber is ethenyl blocking silicon rubber；The molecule of ethenyl blocking silicon rubber
Amount is 80-100 ten thousand, contents of ethylene 0.03%-0.15%.
In an alternative embodiment, silicon rubber is ethenyl blocking silicon rubber；The molecule of ethenyl blocking silicon rubber
Measure 50-70 ten thousand, contents of ethylene 0.16%-1.0%.
In an alternative embodiment, silicon rubber includes composition A and composition B；
Composition A is the raw rubber of 75phr molecular weight 600,000, contents of ethylene 0.22%；Composition B is 25phr molecular weight
900000, the raw rubber of contents of ethylene 0.04%；
Alternatively, silicon rubber includes composition A, composition B and composition C；
Composition A is the raw rubber of 65phr molecular weight 600,000, contents of ethylene 0.16%；Composition B is 20phr molecular weight
800000, the raw rubber of contents of ethylene 0.03%；Composition C is the raw rubber of 15phr molecular weight 600,000, contents of ethylene 1.0%.
It should be noted that the ingredient of silicon rubber is of crucial importance, guarantee that the service performance of rubber roller silicon rubber reaches best.
In an alternative embodiment, white carbon black is precipitated silica, and white carbon black is even by different type silane
Join the Hydrophobic White carbon black of agent processing；The specific surface area of white carbon black is 180m2/ g or more.White carbon black using effect is good, substitution
Carbon black carries out reinforcement, meets the needs of white or translucent product, white carbon black adhesion strength with super strength, tear-proof and resistance to simultaneously
Hot anti-aging property, to improve performance and chemical property in the room of resistance oil silicone rubber.
In an alternative embodiment, filler is light magnesium oxide, magnesium carbonate, calcium carbonate, ultrafine quartz powder, diatom
Soil and treated one of silicon powder or a variety of；Filler is large specific surface area and resistance to high temperature resistant, is able to ascend rubber compound
Oil resistance.
Antistructurizing agent is hydroxy silicon oil, methoxyl group silicone oil, triethanolamine borate, vinyl silicone oil or containing hydrogen silicone oil
One of or it is a variety of；
Heat-resistant agent is one of rice titanium dioxide, nano aluminium oxide or rare earth composite heat resistance agent or a variety of, in life
The heat resistance for producing and promoting silicon rubber in use process.
Release agent is stearate, boric acid or and one of borate compound or a variety of.
In the present invention, according to above-mentioned low compression set rubber roller silicon rubber, it is also proposed that a kind of to contract about above-mentioned low pressure
The preparation method of permanent deformation rubber roller silicon rubber, comprising the following steps:
S1: the selection and collocation of raw rubber；
S2: the selection and processing of white carbon black；
S3: source fillings processing；
S4: the refining and processing of rubber compound；Wherein, the refining of rubber compound includes the mill and mixing of fluorubber and silicon rubber
The kneading of glue；
In rubber compound kneading process, raw rubber, white carbon black, coupling agent, antistructurizing agent, filler and demoulding are successively put into
Agent；Wherein, coupling agent treatment processing and high-temperature calcination processing are carried out before filler investment；
The treatment process of rubber compound includes high-temperature process and vacuumize process and subsequent back mixing process；
S5: filtering；
S6: finished product packing.
In an alternative embodiment, the heat treatment temperature of rubber compound is 140-180 DEG C, heat treatment time 30-
180min, vacuum degree are negative pressure 0.04- negative pressure 0.1MPa, guarantee that reaction condition reaches best, improve product quality.
In an alternative embodiment, in S5, when filtering, strainer mesh number is 150-200 mesh, and strainer is arranged 1 layer or 2
Layer guarantees filter effect.
In the present invention, rubber roller silicon rubber preparation method is simple, and technique is convenient, strong operability, and quality is stablized, and practicability
By force, solve the problems, such as that the resistance to temperature difference of existing rubber roller silicon rubber, compression set are high, to silicon rubber collocation, powder selection and processing
Etc. modes carry out it is multiple modified, in the case where meeting high-intensitive, Splitting, the features such as compression set is small, aging conservation rate is high.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (10)
1. a kind of low compression set rubber roller silicon rubber, which is characterized in that each component includes: silicon rubber according to amount number proportion
100 parts, 20-70 parts of white carbon black, 15-50 parts of filler, 1-3 parts of antistructurizing agent, 2-6 parts of heat-resistant agent, 0.1-1 parts of coupling agent
With 0.1-1 parts of release agent.
2. low compression set rubber roller silicon rubber according to claim 1, which is characterized in that silicon rubber includes 0-
The methyl vinyl silicone rubber of 800,000 or more the molecular weight of 30phr and the ethylene methacrylic of 70-100phr molecular weight 50-70 ten thousand
Base silicon rubber.
3. low compression set rubber roller silicon rubber according to claim 1, which is characterized in that silicon rubber is vinyl envelope
Hold silicon rubber；The molecular weight of ethenyl blocking silicon rubber is 80-100 ten thousand, contents of ethylene 0.03%-0.15%.
4. low compression set rubber roller silicon rubber according to claim 1, which is characterized in that silicon rubber is vinyl envelope
Hold silicon rubber；The molecular weight 50-70 ten thousand of ethenyl blocking silicon rubber, contents of ethylene 0.16%-1.0%.
5. low compression set rubber roller silicon rubber according to claim 1, which is characterized in that silicon rubber includes composition
A and composition B；
Composition A is the raw rubber of 75phr molecular weight 600,000, contents of ethylene 0.22%；Composition B be 25phr molecular weight 900,000,
The raw rubber of contents of ethylene 0.04%；
Alternatively, silicon rubber includes composition A, composition B and composition C；
Composition A is the raw rubber of 65phr molecular weight 600,000, contents of ethylene 0.16%；Composition B be 20phr molecular weight 800,000,
The raw rubber of contents of ethylene 0.03%；Composition C is the raw rubber of 15phr molecular weight 600,000, contents of ethylene 1.0%.
6. low compression set rubber roller silicon rubber according to claim 1 and preparation method thereof, which is characterized in that hard charcoal
Black is precipitated silica, and the Hydrophobic White carbon black that white carbon black is handled by different type silane coupling agent；The ratio of white carbon black
Surface area is 180m2/ g or more.
7. low compression set rubber roller silicon rubber according to claim 1, which is characterized in that filler is lightweight oxidation
Magnesium, magnesium carbonate, calcium carbonate, ultrafine quartz powder, diatomite and treated one of silicon powder or a variety of；
Antistructurizing agent is in hydroxy silicon oil, methoxyl group silicone oil, triethanolamine borate, vinyl silicone oil or containing hydrogen silicone oil
It is one or more；
Heat-resistant agent is one of rice titanium dioxide, nano aluminium oxide or rare earth composite heat resistance agent or a variety of；
Release agent is stearate, boric acid or and one of borate compound or a variety of.
8. low compression set rubber roller silicon rubber according to claim 1-7, it is also proposed that one kind is about above-mentioned
The preparation method of low compression set rubber roller silicon rubber, which comprises the following steps:
S1: the selection and collocation of raw rubber；
S2: the selection and processing of white carbon black；
S3: source fillings processing；
S4: the refining and processing of rubber compound；Wherein, the refining of rubber compound includes the mill and rubber compound of fluorubber and silicon rubber
It mediates；
In rubber compound kneading process, raw rubber, white carbon black, coupling agent, antistructurizing agent, filler and release agent are successively put into；
Wherein, coupling agent treatment processing and high-temperature calcination processing are carried out before filler investment；
The treatment process of rubber compound includes high-temperature process and vacuumize process and subsequent back mixing process；
S5: filtering；
S6: finished product packing.
9. the preparation method of low compression set rubber roller silicon rubber according to claim 8, which is characterized in that rubber compound
Heat treatment temperature be 140-180 DEG C, heat treatment time 30-180min, vacuum degree be negative pressure 0.04- negative pressure 0.1MPa.
10. the preparation method of low compression set rubber roller silicon rubber according to claim 8, which is characterized in that in S5
In, when filtering, strainer mesh number is 150-200 mesh, and strainer is arranged 1 layer or 2 layers.
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| CN110894419A (en) * | 2019-12-05 | 2020-03-20 | 东莞市源岭硅胶科技有限公司 | Flame-retardant silica gel and preparation method thereof |
| CN110922763A (en) * | 2019-12-03 | 2020-03-27 | 江西蓝星星火有机硅有限公司 | High-temperature-resistant low-compression-set self-bleeding oil rubber compound and preparation method thereof |
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| CN110922763A (en) * | 2019-12-03 | 2020-03-27 | 江西蓝星星火有机硅有限公司 | High-temperature-resistant low-compression-set self-bleeding oil rubber compound and preparation method thereof |
| CN110922763B (en) * | 2019-12-03 | 2022-05-17 | 江西蓝星星火有机硅有限公司 | High-temperature-resistant low-compression-set self-bleeding oil rubber compound and preparation method thereof |
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Application publication date: 20190910 |