CN110172251A - A kind of resistance oil silicone rubber and preparation method thereof - Google Patents
A kind of resistance oil silicone rubber and preparation method thereof Download PDFInfo
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- CN110172251A CN110172251A CN201910499788.8A CN201910499788A CN110172251A CN 110172251 A CN110172251 A CN 110172251A CN 201910499788 A CN201910499788 A CN 201910499788A CN 110172251 A CN110172251 A CN 110172251A
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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
- 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
- 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
- C08L2205/03—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
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Abstract
A kind of resistance oil silicone rubber and preparation method thereof, component include: 70-80 parts of silicon rubber, 10-20 parts of fluorubber, 3-8 parts of polytetrafluoroethylene (PTFE), 40-50 parts of white carbon black, 10-30 parts of filler, 3-10 parts of antistructurizing agent and 2-6 parts of heat-resistant agent according to proportion by weight.In the present invention: resistance oil silicone rubber increases tensile strength and elongation, drop low compression set and promotion oil resistant, heat resistance, and quality is stablized, and practical, preparation is convenient, and strong operability, cost is relatively low, solves the problems, such as that existing silicon rubber oil resistivity is poor.
Description
Technical field
The present invention relates to silicone rubber arts more particularly to a kind of resistance oil silicone rubber and preparation method thereof.
Background technique
Silicon rubber has the characteristics that high-low temperature resistant, resistance to ultraviolet, radiation resistance, weather-proof, hydrophobic, fire retardant, in aerospace, military
With civilian increasing fast, and become national economy in important and essential novel high polymer material.Wherein, aerospace,
Certain applications of the industries such as auto industry, electric, petrochemical industry are harsh to the use environment of rubber material, usually need
It to work in the place of high temperature, organic oil, silicon rubber is also because the short slab of oil resistant is difficult to reach its requirement.
In order to meet the development and demand of related industries, the excellent novel rubber of a kind of high and low temperature resistance, oil resistivity is developed
Glue material uses meaning with very actual.
Study at present successful fluorine silicone rubber, eyeball silicon rubber both maintained the heat resistance of silicon rubber, cold resistance, weatherability,
A series of excellent performances such as low compression deformation, resilience, electrical characteristic, release property, the oil resistant being provided simultaneously with, solvent resistant
Property, it can satisfy the requirement of certain special occasions, but be extremely limited its application since it is expensive.
Summary of the invention
(1) goal of the invention
To solve technical problem present in background technique, the present invention proposes a kind of resistance oil silicone rubber and preparation method thereof,
Silicon rubber is carried out multiple modified, silicon rubber often possesses oil resistant, solvent resistance, solves asking for existing silicon rubber oil resistivity difference
Topic；Meanwhile preparation process is less using fluorubber, polytetrafluoroethylene (PTFE), mainly uses precipitated silica, low cost filler, tool
There is apparent cost advantage.
(2) technical solution
To solve the above problems, component includes: silicon rubber according to proportion by weight the present invention provides a kind of resistance oil silicone rubber
70-80 parts of glue, 10-20 parts of fluorubber, 3-8 parts of polytetrafluoroethylene (PTFE), 40-50 parts of white carbon black, 10-30 parts of filler, structuring control
3-10 parts and heat-resistant agent 2-6 parts of preparation.
Preferably, silicon rubber is the methyl vinyl silicone rubber of molecular weight 50-70 ten thousand；Wherein, contents of ethylene 0.03-
0.08% or contents of ethylene be 0.03-0.15%.
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 one of fine quartz powder, diatomite, mica powder, wollastonite or kaolin or a variety of.
Preferably, filler is one of fine quartz powder, diatomite, mica powder, wollastonite or kaolin or a variety of.
Preferably, antistructurizing agent includes fluorine-containing auxiliary agent and non-fluorine-containing auxiliary agent；Wherein, fluorine-containing auxiliary agent is that vinyl is fluorine-containing
One of silicone oil, methyl fluorine containing silicone oil or terminal hydroxy group flucride siloxane are a variety of；Non- fluorine-containing auxiliary agent is hydroxy silicon oil, methoxyl group
One of silicone oil, dimethicone or methyl phenyl silicone oil are a variety of.
Preferably, heat-resistant agent is in nano-cerium oxide, nano magnesia, the agent of rare earth composite heat resistance or fibrous silicate
It is one or more.
Preferably, fluorubber is the common fluorine-containing rubber in market.
Preferably, polytetrafluoroethylene (PTFE) is the common polytetrafluorethylepowder powder in market.
In the present invention, according to above-mentioned resistance oil silicone rubber, it is also proposed that a kind of preparation method about above-mentioned resistance oil silicone rubber,
The preparation method of resistance oil silicone rubber the following steps are included:
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；
S5: filtering；
S6: finished product packing.
Preferably, fluorubber and silicon rubber ratio are 1:1；The mill of fluorubber and silicon rubber, comprising the following steps:
S101: fluorubber being beaten in open mill soft, and suitable fluorine containing silicone oil is added in the process；Soften to fluorubber
Packet roller can divide 3-5 addition silicon rubber later, be rubber compound A after being mixed thoroughly；
S102: remaining raw rubber in rubber compound A and raw material is added in kneader, the hard charcoal handled well is sequentially added
Black, antistructurizing agent, filler and heat-resistant agent are mediated uniformly, obtain rubber compound B；
S103: kneader heating continues until opening vacuumize process after glue B actual temperature to be mixed reaches 130 DEG C
80 minutes, vacuum degree control was controlled in negative pressure 0.06- negative pressure 0.08MPa, kneader actual temperature at 160 DEG C or less.
In the present invention: resistance oil silicone rubber increases tensile strength and elongation, drop low compression set and promotion oil resistant, heat resistance
Can, quality is stablized, and practical, preparation is convenient, and strong operability, cost is relatively low, solves the problems, such as that existing silicon rubber oil resistivity is poor.
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 resistance oil silicone rubber proposed by the present invention, component include: 70-80 parts of silicon rubber, fluorine rubber according to proportion by weight
10-20 parts of glue, 3-8 parts of polytetrafluoroethylene (PTFE), 40-50 parts of white carbon black, 10-30 parts of filler, 3-10 parts of antistructurizing agent and resistance to
2-6 parts of thermit powder.
In the present invention, resistance oil silicone rubber increases tensile strength and elongation, drop low compression set and promotion oil resistant, heat resistance
Can, quality is stablized, and cost is relatively low, and practical；GB/T1690-2010 test environment in, the present invention can with and also oil resistant
Haveing excellent performance the △ V in ASTM1# standard oil is 2%-5% (150 DEG C × 72h), and △ V is 20%- in ASTM3# standard oil
25% (150 DEG C × 24), can replace resistance to factice in the market.
In an alternative embodiment, silicon rubber is the methyl vinyl silicone rubber of molecular weight 50-70 ten thousand；Wherein, second
Amount vinyl content is 0.03-0.08% or contents of ethylene is 0.03-0.15%.
It should be noted that contents of ethylene is that 0.03~0.08% silicon rubber is conducive to increase tensile strength and elongation
Rate, wherein contents of ethylene is advantageously reduced higher than 0.15~0.35% compresses permanently and is promoted oil resistant, heat resistance
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 in fine quartz powder, diatomite, mica powder, wollastonite or kaolin
It is one or more.Filler is large specific surface area and resistance to high temperature resistant, is able to ascend the oil resistance of rubber compound.
In an alternative embodiment, antistructurizing agent includes fluorine-containing auxiliary agent and non-fluorine-containing auxiliary agent；Wherein, fluorine-containing to help
Agent is one of vinyl fluorine containing silicone oil, methyl fluorine containing silicone oil or terminal hydroxy group flucride siloxane or a variety of；Non- fluorine-containing auxiliary agent is
One of hydroxy silicon oil, methoxyl group silicone oil, dimethicone or methyl phenyl silicone oil are a variety of.
Further, fluorine-containing auxiliary agent is 3-8 parts, and non-fluorine-containing auxiliary agent is 1-4 parts.
It should be noted that fluorine-containing auxiliary agent has the compatibility and structure for promoting silicon rubber, fluorubber and polytetrafluoroethylene (PTFE)
Change control action；Non- fluorine-containing auxiliary agent mainly plays structuring control action.
In an alternative embodiment, heat-resistant agent is nano-cerium oxide, nano magnesia, the agent of rare earth composite heat resistance or fibre
One of shape silicate or a variety of is tieed up, for promoting the heat resistance of silicon rubber in the production and use process.
In an alternative embodiment, fluorubber is the common fluorine-containing rubber in market.
In an alternative embodiment, polytetrafluoroethylene (PTFE) is the common polytetrafluorethylepowder powder in market.
It should be noted that the common easy acquisition of raw material, at low cost, using effect is good.
The present invention, according to above-mentioned resistance oil silicone rubber, it is also proposed that a kind of preparation method about above-mentioned resistance oil silicone rubber, it is resistance to
The preparation method of oily silicon rubber the following steps are included:
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；
S5: filtering；
S6: finished product packing.
In an alternative embodiment, fluorubber and silicon rubber ratio are 1:1；The mill of fluorubber and silicon rubber, packet
Include following steps:
S101: fluorubber being beaten in open mill soft, and suitable fluorine containing silicone oil is added in the process；Soften to fluorubber
Packet roller can divide 3-5 addition silicon rubber later, be rubber compound A after being mixed thoroughly；
S102: remaining raw rubber in rubber compound A and raw material is added in kneader, the hard charcoal handled well is sequentially added
Black, antistructurizing agent, filler and heat-resistant agent are mediated uniformly, obtain rubber compound B；
S103: kneader heating continues until opening vacuumize process after glue B actual temperature to be mixed reaches 130 DEG C
80 minutes, vacuum degree control was controlled in negative pressure 0.06- negative pressure 0.08MPa, kneader actual temperature at 160 DEG C or less.
In the present invention, resistance oil silicone rubber preparation is convenient, and strong operability, quality is stablized, and cost is relatively low, and service performance is high, solution
The problem of certainly existing silicon rubber oil resistivity difference.
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 resistance oil silicone rubber, which is characterized in that component includes: 70-80 parts of silicon rubber, fluorubber according to proportion by weight
10-20 parts, 3-8 parts of polytetrafluoroethylene (PTFE), 40-50 parts of white carbon black, 10-30 parts of filler, 3-10 parts of antistructurizing agent and heat-resisting
2-6 parts of agent.
2. resistance oil silicone rubber according to claim 1, which is characterized in that silicon rubber is the methyl second of molecular weight 50-70 ten thousand
Alkenyl silicon rubber；Wherein, contents of ethylene 0.03-0.08% or contents of ethylene are 0.03-0.15%.
3. resistance oil silicone rubber according to claim 1, which is characterized in that white carbon black is precipitated silica, and white carbon black
The Hydrophobic White carbon black handled by different type silane coupling agent；The specific surface area of white carbon black is 180m2/ g or more.
4. resistance oil silicone rubber according to claim 1, which is characterized in that filler is fine quartz powder, diatomite, mica
One of powder, wollastonite or kaolin are a variety of.
5. resistance oil silicone rubber according to claim 1, which is characterized in that antistructurizing agent includes fluorine-containing auxiliary agent and non-contains
Fluorine auxiliary agent；Wherein, fluorine-containing auxiliary agent be one of vinyl fluorine containing silicone oil, methyl fluorine containing silicone oil or terminal hydroxy group flucride siloxane or
It is a variety of；Non- fluorine-containing auxiliary agent is one of hydroxy silicon oil, methoxyl group silicone oil, dimethicone or methyl phenyl silicone oil or a variety of.
6. resistance oil silicone rubber according to claim 1, which is characterized in that heat-resistant agent be nano-cerium oxide, nano magnesia,
One of the agent of rare earth composite heat resistance or fibrous silicate are a variety of.
7. resistance oil silicone rubber according to claim 1, which is characterized in that fluorubber is the common fluorine-containing rubber in market.
8. resistance oil silicone rubber according to claim 1, which is characterized in that polytetrafluoroethylene (PTFE) is the common polytetrafluoroethyl-ne in market
Alkene powder.
9. resistance oil silicone rubber according to claim 1-8, it is also proposed that a kind of system about above-mentioned resistance oil silicone rubber
Preparation Method, which is characterized in that the preparation method of resistance oil silicone rubber the following steps are included:
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；
S5: filtering；
S6: finished product packing.
10. the preparation method of resistance oil silicone rubber according to claim 9, which is characterized in that fluorubber and silicon rubber ratio
For 1:1；The mill of fluorubber and silicon rubber, comprising the following steps:
S101: fluorubber being beaten in open mill soft, and suitable fluorine containing silicone oil is added in the process；Soften packet roller to fluorubber
3-5 addition silicon rubber can be divided later, be rubber compound A after being mixed thoroughly；
S102: remaining raw rubber in rubber compound A and raw material is added in kneader, sequentially adds the white carbon black handled well, knot
Structure controlling agent, filler and heat-resistant agent are mediated uniformly, obtain rubber compound B；
S103: kneader heating, until opening vacuumize process after glue B actual temperature to be mixed reaches 130 DEG C, continuing 80 points
Clock, vacuum degree control are controlled in negative pressure 0.06- negative pressure 0.08MPa, kneader actual temperature at 160 DEG C or less.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117257A (en) * | 2019-12-30 | 2020-05-08 | 广东聚合科技股份有限公司 | Silicon rubber for automobile turbocharger tube and preparation method thereof |
| CN111286198A (en) * | 2020-03-05 | 2020-06-16 | 东莞市南炬高分子材料有限公司 | Solvent-resistant heat-resistant melt adhesive silicone rubber |
| CN111875972A (en) * | 2020-09-15 | 2020-11-03 | 沅陵县成瑞祥粉体材料科技有限公司 | Oil-resistant silicone rubber |
| CN112795197A (en) * | 2020-12-31 | 2021-05-14 | 广州市白云化工实业有限公司 | Methyl vinyl silicone rubber and preparation method thereof |
| CN113308116A (en) * | 2021-06-04 | 2021-08-27 | 江苏泓相密封件科技有限公司 | Rubber sealing ring and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111117257A (en) * | 2019-12-30 | 2020-05-08 | 广东聚合科技股份有限公司 | Silicon rubber for automobile turbocharger tube and preparation method thereof |
| CN111286198A (en) * | 2020-03-05 | 2020-06-16 | 东莞市南炬高分子材料有限公司 | Solvent-resistant heat-resistant melt adhesive silicone rubber |
| CN111875972A (en) * | 2020-09-15 | 2020-11-03 | 沅陵县成瑞祥粉体材料科技有限公司 | Oil-resistant silicone rubber |
| CN112795197A (en) * | 2020-12-31 | 2021-05-14 | 广州市白云化工实业有限公司 | Methyl vinyl silicone rubber and preparation method thereof |
| CN113308116A (en) * | 2021-06-04 | 2021-08-27 | 江苏泓相密封件科技有限公司 | Rubber sealing ring and preparation method thereof |
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