CN107513366A - A kind of oil resistant fluid sealant and preparation method thereof - Google Patents
A kind of oil resistant fluid sealant and preparation method thereof Download PDFInfo
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- CN107513366A CN107513366A CN201710810107.6A CN201710810107A CN107513366A CN 107513366 A CN107513366 A CN 107513366A CN 201710810107 A CN201710810107 A CN 201710810107A CN 107513366 A CN107513366 A CN 107513366A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
- C09J183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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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
- C08K2003/265—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
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of single-component room temperature vulcanized organosilicon sealant technology, specifically a kind of dealcoholized type oil resistant fluid sealant and preparation method thereof.Its recipe ingredient is measured by following parts by weight：50 100 parts of the dimethyl silicone polymer of terminal methyl group dimethoxy silica, 50 100 parts of calcium carbonate, 5 15 parts of gas-phase silica, 5 10 parts of silicone oil plasticizer, 5 15 parts of crosslinking agent, 0.5 7.5 parts of coupling agent, 0.1 5 parts of catalyst.The advantage of the invention is that：Due to selecting rational component formula, not only so that obtained fluid sealant smell is very low, to metal protection very little, and on the basis of fluid sealant properties are not changed, make its oil resistivity very high, in addition, its methodological science is reasonable, so that preparation process is simple, manufactured product cementability is strong, and storage period is stable.
Description
Technical field
The present invention relates to a kind of single-component room temperature vulcanized organosilicon sealant technology, specifically a kind of dealcoholized type oil resistant
Fluid sealant and preparation method thereof.
Background technology
Fluid sealant has excellent anti-weathering aging, UV stable, high-low temperature resistant, in harsh climate environment
The features such as elasticity can be kept, do not tear and be not cracked, it is widely used in every field, it is especially close in automotive field, fuel tank etc.
Envelope requires that oil resistivity is high, and traditional silicon rubber is made that very big improvement in oil resistivity, but smell is big, and cementability is not
Enough, the reason such as be corrosive to metal limits application of the silicon rubber in fields such as automobiles, therefore, is improving silicon rubber oil resistivity
On the basis of, improve some of the above shortcoming tool and be of great significance.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of smell is low, cementability is strong, small to metal protection and can
Ensure oil resistant fluid sealant of fluid sealant properties and preparation method thereof.
In order to solve the above-mentioned technical problem, oil resistant fluid sealant of the invention, it is characterised in that：Its recipe ingredient is by following heavy
Measure number metering：Dimethyl silicone polymer 50-100 parts of terminal methyl group dimethoxy silica, calcium carbonate 50-100 parts, gas phase are white
Carbon black 5-15 parts, silicone oil plasticizer 5-10 parts, crosslinking agent 5-15 parts, coupling agent 0.5-7.5 parts, catalyst 0.1-5 parts.
The dimethyl silicone polymer of the terminal methyl group dimethoxy silica, structural formula
(viscosity is 0.5-200Pas at n=750-2000,25 DEG C).
The calcium carbonate is the precipitated calcium carbonate crossed through fatty acid treatment.
The gas-phase silica that the gas-phase silica is handled for surface through HMDS, specific surface area 100-
300m2/g。
The silicone oil plasticizer is the dimethyl silicone polymer of terminal methyl group, and viscosity is 0.5-20Pas at 25 DEG C.
The crosslinking agent is in MTMS, vinyltrimethoxy silane or phenyltrimethoxysila,e
It is at least one.
The coupling agent is gamma-aminopropyl-triethoxy-silane, β-aminoethyl-γ-aminopropyltrimethoxysilane, double
At least one of (γ-trimethoxysilylpropyl) amine, glycidol ether propyl trimethoxy silicane.
The catalyst is the tert-butyl ester compound of metatitanic acid four.
A kind of preparation method of above-mentioned oil resistant fluid sealant, comprises the following steps：
A) by dimethyl silicone polymer 50-100 parts, calcium carbonate 50-100 parts, gas phase of terminal methyl group dimethoxy silica
White carbon 5-15 parts, dimethyl silicone polymer 5-10 parts, which are added to be stirred under vacuum in kneader, is made rubber master batch；
B) crosslinking agent 5-15 parts, coupling agent 0.5-7.5 parts, catalyst 0.1-5 parts are added in rubber master batch again, in planet stirring
It is stirred under vacuum in machine, vacuum 0.06-0.09MPa, 50 revs/min of mixing speed, stirs 2.5-3h, it is close that RTV-1 oil resistants are made
Sealing.
The advantage of the invention is that：Due to selecting rational component formula, not only cause obtained fluid sealant smell very
It is low, to metal protection very little, and on the basis of fluid sealant properties are not changed, make its oil resistivity very high, in addition,
Its methodological science is reasonable so that preparation process is simple, and manufactured product cementability is strong, and storage period is stable.
Embodiment
Oil resistant fluid sealant of the present invention and preparation method thereof is further elaborated with reference to embodiment.
Embodiment one：
The oil resistant fluid sealant of the present embodiment, is prepared using formula as below and preparation method thereof, by terminal methyl group diformazan
5 parts of 5 parts of 50 parts of 50 parts of dimethyl silicone polymer, calcium carbonate, gas-phase silica, the dimethyl silicone polymer of epoxide silica is being mediated
It is stirred under vacuum in machine and rubber master batch is made, then by 5 parts of MTMS, 0.5 part of gamma-aminopropyl-triethoxy-silane, metatitanic acid
Four 0.1 part of tert-butyl ester compounds are added in rubber master batch, are stirred in planetary mixer, vacuum 0.06-0.09MPa, stirring speed
50 revs/min of degree, 2.5-3h is stirred, RTV-1 oil resistant fluid sealants are made.Properties of product test result sees attached list 1.Oil resistant test knot
Fruit is shown in Table 2.
Embodiment two：
The oil resistant fluid sealant of the present embodiment, is prepared using formula as below and preparation method thereof, by terminal methyl group diformazan
5 parts of 10 parts of 70 parts of 70 parts of dimethyl silicone polymer, calcium carbonate, gas-phase silica, the dimethyl silicone polymer of epoxide silica is being pinched
It is stirred under vacuum in conjunction machine and rubber master batch is made, then by 5 parts of MTMS, 2 parts of gamma-aminopropyl-triethoxy-silane, metatitanic acid
Four 0.5 part of tert-butyl ester compounds are added in rubber master batch, are stirred in planetary mixer, vacuum 0.06-0.09MPa, stirring speed
50 revs/min of degree, 2.5-3h is stirred, RTV-1 oil resistant fluid sealants are made.Properties of product test result sees attached list 1.Oil resistant test knot
Fruit is shown in Table 2.
Embodiment three：
The oil resistant fluid sealant of the present embodiment, is prepared using formula as below and preparation method thereof, by terminal methyl group diformazan
10 parts of 10 parts of 85 parts of 85 parts of dimethyl silicone polymer, calcium carbonate, gas-phase silica, the dimethyl silicone polymer of epoxide silica is being pinched
It is stirred under vacuum in conjunction machine and rubber master batch is made, then by 5 parts of MTMS, 5 parts of gamma-aminopropyl-triethoxy-silane, metatitanic acid
Four 3 parts of tert-butyl ester compounds are added in rubber master batch, are stirred in planetary mixer, vacuum 0.06-0.09MPa, mixing speed
50 revs/min, 2.5-3h is stirred, RTV-1 oil resistant fluid sealants are made.Properties of product test result sees attached list 1.Oil resistant test result
It is shown in Table 2.
Example IV：
The oil resistant fluid sealant of the present embodiment, is prepared using formula as below and preparation method thereof, by terminal methyl group diformazan
10 parts of 15 parts of 100 parts of 100 parts of dimethyl silicone polymer, calcium carbonate, gas-phase silica, the dimethyl silicone polymer of epoxide silica exist
In kneader be stirred under vacuum be made rubber master batch, then by 15 parts of MTMS, 7.5 parts of gamma-aminopropyl-triethoxy-silane,
5 parts of four tert-butyl ester compound of metatitanic acid is added in rubber master batch, is stirred in planetary mixer, vacuum 0.06-0.09MPa, stirring
50 revs/min of speed, 2.5-3h is stirred, RTV-1 oil resistant fluid sealants are made.Properties of product test result sees attached list 1.Oil resistant is tested
It the results are shown in Table 2.
The test result of table 1
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Surface drying time (min) | 8 | 7 | 6 | 4 |
| Tensile strength (MPa) | 2.14 | 2.21 | 2.31 | 2.44 |
| Elongation at break (%) | 540 | 530 | 555 | 565 |
| Hardness (Shore A) | 27 | 29 | 24 | 31 |
| Shear strength (MPa) | 2.45 | 2.47 | 2.39 | 2.51 |
The test result of table 2
Claims (9)
- A kind of 1. oil resistant fluid sealant, it is characterised in that：Its recipe ingredient is measured by following parts by weight：Terminal methyl group dimethoxy Dimethyl silicone polymer 50-100 parts of silica, calcium carbonate 50-100 parts, gas-phase silica 5-15 parts, silicone oil plasticizer 5-10 Part, crosslinking agent 5-15 parts, coupling agent 0.5-7.5 parts, catalyst 0.1-5 parts.
- 2. oil resistant fluid sealant according to claim 1, it is characterised in that：Poly- the two of the terminal methyl group dimethoxy silica Methylsiloxane, structural formula(viscosity is 0.5- at n=750-2000,25 DEG C 200Pa·s)。
- 3. oil resistant fluid sealant according to claim 1, it is characterised in that：The calcium carbonate is light to be crossed through fatty acid treatment Matter calcium carbonate.
- 4. RTV-1 oil resistants fluid sealant according to claim 1, it is characterised in that：The gas-phase silica is surface six The gas-phase silica of methyl disilazane processing, specific surface area 100-300m2/g。
- 5. RTV-1 oil resistants fluid sealant according to claim 1, it is characterised in that：The silicone oil plasticizer is terminal methyl group Dimethyl silicone polymer, viscosity is 0.5-20Pas at 25 DEG C.
- 6. RTV-1 oil resistants fluid sealant according to claim 1, it is characterised in that：The crosslinking agent is methyl trimethoxy epoxide At least one of silane, vinyltrimethoxy silane or phenyltrimethoxysila,e.
- 7. RTV-1 oil resistants fluid sealant according to claim 1, it is characterised in that：The coupling agent is the second of γ-aminopropyl three TMOS, β-aminoethyl-γ-aminopropyltrimethoxysilane, double (γ-trimethoxysilylpropyl) amine, glycidol At least one of ether propyl trimethoxy silicane.
- 8. RTV-1 oil resistants fluid sealant according to claim 1, it is characterised in that：The catalyst is the tert-butyl ester of metatitanic acid four Compound.
- 9. a kind of preparation method of the oil resistant fluid sealant as described in one of claim 1-8, it is characterised in that comprise the following steps：A) by dimethyl silicone polymer 50-100 parts, calcium carbonate 50-100 parts, gas phase hard charcoal of terminal methyl group dimethoxy silica Black 5-15 parts, dimethyl silicone polymer 5-10 parts, which are added to be stirred under vacuum in kneader, is made rubber master batch；B) crosslinking agent 5-15 parts, coupling agent 0.5-7.5 parts, catalyst 0.1-5 parts are added in rubber master batch again, in planetary mixer It is stirred under vacuum, vacuum 0.06-0.09MPa, 50 revs/min of mixing speed, stirs 2.5-3h, RTV-1 oil resistant fluid sealants are made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710810107.6A CN107513366A (en) | 2017-09-11 | 2017-09-11 | A kind of oil resistant fluid sealant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710810107.6A CN107513366A (en) | 2017-09-11 | 2017-09-11 | A kind of oil resistant fluid sealant and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161204A (en) * | 2018-08-20 | 2019-01-08 | 镇江创达新材料科技有限公司 | A kind of preparation method of oil resistant dealcoholized type one-component RTV silicon rubber |
| CN112210340A (en) * | 2020-11-06 | 2021-01-12 | 福建省昌德胶业科技有限公司 | Oil-resistant organosilicon sealant and preparation method thereof |
Citations (4)
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|---|---|---|---|---|
| CN101012364A (en) * | 2007-01-29 | 2007-08-08 | 成都硅宝科技实业有限责任公司 | Single-component room-temperature fast sulfidization dealcoholization type sealing rubber with silicone structure and preparing method thereof |
| CN103436217A (en) * | 2013-09-06 | 2013-12-11 | 江苏天辰硅材料有限公司 | Single-component dealcoholized oil-resistant silicone sealant and preparation method thereof |
| CN103602306A (en) * | 2013-09-06 | 2014-02-26 | 江苏天辰硅材料有限公司 | Single-component room-temperature sulfuration transparent dealcoholization-type mildew-resistant silicone sealant and preparation method thereof |
| CN107189753A (en) * | 2017-07-12 | 2017-09-22 | 山东大学 | A kind of de-oxime type oil resistant fluorine silicone sealant and preparation method thereof |
-
2017
- 2017-09-11 CN CN201710810107.6A patent/CN107513366A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012364A (en) * | 2007-01-29 | 2007-08-08 | 成都硅宝科技实业有限责任公司 | Single-component room-temperature fast sulfidization dealcoholization type sealing rubber with silicone structure and preparing method thereof |
| CN103436217A (en) * | 2013-09-06 | 2013-12-11 | 江苏天辰硅材料有限公司 | Single-component dealcoholized oil-resistant silicone sealant and preparation method thereof |
| CN103602306A (en) * | 2013-09-06 | 2014-02-26 | 江苏天辰硅材料有限公司 | Single-component room-temperature sulfuration transparent dealcoholization-type mildew-resistant silicone sealant and preparation method thereof |
| CN107189753A (en) * | 2017-07-12 | 2017-09-22 | 山东大学 | A kind of de-oxime type oil resistant fluorine silicone sealant and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161204A (en) * | 2018-08-20 | 2019-01-08 | 镇江创达新材料科技有限公司 | A kind of preparation method of oil resistant dealcoholized type one-component RTV silicon rubber |
| CN112210340A (en) * | 2020-11-06 | 2021-01-12 | 福建省昌德胶业科技有限公司 | Oil-resistant organosilicon sealant and preparation method thereof |
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