CN112210340A - Oil-resistant organosilicon sealant and preparation method thereof - Google Patents
Oil-resistant organosilicon sealant and preparation method thereof Download PDFInfo
- Publication number
- CN112210340A CN112210340A CN202011232534.9A CN202011232534A CN112210340A CN 112210340 A CN112210340 A CN 112210340A CN 202011232534 A CN202011232534 A CN 202011232534A CN 112210340 A CN112210340 A CN 112210340A
- Authority
- CN
- China
- Prior art keywords
- oil
- parts
- resistant
- silane
- stirring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000565 sealant Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 47
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000006229 carbon black Substances 0.000 claims abstract description 18
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 17
- 239000007822 coupling agent Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 13
- -1 polysiloxane Polymers 0.000 claims abstract description 12
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 10
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 10
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012974 tin catalyst Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 20
- 229910000077 silane Inorganic materials 0.000 claims description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 15
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- 229920002545 silicone oil Polymers 0.000 claims description 11
- 239000004590 silicone sealant Substances 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 8
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 8
- 239000004945 silicone rubber Substances 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 3
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 3
- 235000019241 carbon black Nutrition 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000003141 primary amines Chemical group 0.000 claims description 3
- 150000003335 secondary amines Chemical class 0.000 claims description 3
- 230000009974 thixotropic effect Effects 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 235000014692 zinc oxide Nutrition 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 230000032683 aging Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- TVJPBVNWVPUZBM-UHFFFAOYSA-N [diacetyloxy(methyl)silyl] acetate Chemical compound CC(=O)O[Si](C)(OC(C)=O)OC(C)=O TVJPBVNWVPUZBM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 150000002923 oximes Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- INFDPOAKFNIJBF-UHFFFAOYSA-N paraquat Chemical compound C1=C[N+](C)=CC=C1C1=CC=[N+](C)C=C1 INFDPOAKFNIJBF-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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
- C08L2205/02—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
The invention relates to the technical field of adhesives, and provides an oil-resistant organosilicon sealant and a preparation method thereof, wherein the oil-resistant organosilicon sealant comprises the following raw materials in parts by mass: 100-150 parts of alpha, omega-dihydroxy polysiloxane (107 silicon rubber), 10-20 parts of ketoxime cross-linking agent, 1-3 parts of aminosilane coupling agent, 50-200 parts of filler, 0.1-0.3 part of tin catalyst, 10-50 parts of oil-resistant additive and 2-10 parts of white carbon black. The invention solves the problems of high cost, poor high temperature resistance and the like of the conventional oil-resistant organosilicon sealant.
Description
Technical Field
The invention relates to the technical field of adhesives, and particularly relates to an oil-resistant organosilicon sealant and a preparation method thereof.
Background
The silicone rubber sealant is widely applied to the industries of automobiles, buildings, petrochemical industry, machine manufacturing and the like. In the automotive industry, silicone sealants are used in large quantities for forming sealing gaskets in situ, and are commonly used for sealing engines, rockers, timing chain covers, oil filter covers, bearing caps, valve covers, coolant systems, and the like. The sealing ring for the automobile engine has very strict requirements, and not only has the requirements of high temperature resistance and oil resistance, but also has low compression set.
The organosilicon sealant takes hydroxyl-terminated polysiloxane as a basic polymer, and other auxiliary agents are added at the same time. The organosilicon sealant not only has weather resistance, heat resistance, cold resistance and adhesiveness, but also has the characteristics of low price, convenient operation and the like.
The sealant with good oil resistance and low compression set can be prepared by taking 107 silicon resin as a main body and introducing low-viscosity dimethyl silicone oil.
Patent CN111154454A proposes a preparation method of oil-resistant organosilicon sealant, but the material price is expensive; CN110885666A increases oil resistance by adding a filler such as kaolin, but tends to deteriorate the stability of silicone rubber.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides the oil-resistant organosilicon sealant which is single-component, good in oil resistance, high-temperature resistant, low in manufacturing cost and suitable for engines and other objects with high requirements on oil resistance and temperature resistance, and the preparation method thereof.
In order to solve the technical problem, the invention adopts the following scheme: an oil-resistant organosilicon sealant comprises the following raw material components in parts by mass,
100 portions of alpha, omega-dihydroxy polysiloxane (107 silicone rubber) 150
10-20 parts of ketoxime cross-linking agent
50-200 parts of filler
0.1 to 0.3 portion of tin catalyst
1-3 parts of amino silane coupling agent
10-50 parts of oil-resistant additive
2-10 parts of white carbon black.
Further, the alpha, omega-dihydroxy polysiloxane (107 silicon rubber) is alpha, omega-dihydroxy polysiloxane, and the fluid viscosity is one or a mixture of 5000-.
Further, the ketoxime cross-linking agent is one or a mixture of methyl tributyl ketoxime silane, vinyl tributyl ketoxime silane, phenyl tributyroxime silane, tetrabutoxime silane and methyl triacetoxy silane.
Further, the filler is one or more of calcium carbonate, silica micropowder, zinc oxide, carbon black, titanium dioxide and white carbon black.
Further, the organic tin catalyst is one or a mixture of a plurality of types of dibutyltin bisacetylacetonate, dibutyltin dilaurate and dibutyltin diacetate.
Furthermore, the aminosilane coupling agent is a primary amine or secondary amine coupling agent and comprises one or more of gamma-aminopropyltrimethoxysilane (KH-540), gamma-aminopropyltriethoxysilane (KH-550), N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH-792) and the like.
Further, the oil-resistant additive is low-viscosity dimethyl silicone oil, and the fluid viscosity is 5-30 cps.
The method for preparing the oil-resistant organosilicon sealant comprises the following process steps:
(1) adding 107 silicon rubber and a filler into a power mixer according to the amount, stirring for 20min, heating to 120 ℃, vacuumizing and stirring for 3 hours;
(2) naturally cooling to room temperature, adding the cross-linking agent, and stirring in vacuum for 20 min;
(3) adding white carbon black, and stirring for 20min in vacuum;
(4) adding a coupling agent, a catalyst and an oil-resistant additive, and stirring for 20min in vacuum to obtain the uniform, fine and thixotropic single-component oil-resistant organosilicon sealant.
By adopting the technical scheme, the invention has the beneficial effects that: the oil resistance of the silicone sealant is greatly improved by the dimethyl silicone oil with specific viscosity, the original heat resistance is kept, the change of related mechanical properties is small, other different fillers can be added into the formula, and the silicone sealant can have other properties so as to achieve the purpose of improving the oil resistance.
Detailed Description
The invention will now be further described with reference to specific embodiments. Raw material name and production company:
107 silicon rubber Jiangxi Lanxing starfire organosilicon Co Ltd
KH-550 coupling agent Nanjing Qiyu chemical technology Co., Ltd
R-974 white carbon black Evonik Degussa
Calcium carbonate Shanxi orchid Huaming nanometer Material Co Ltd
Zinc oxide Zhenjiang Baishui Chemicals Co Ltd
Superfine mineral powder of Minglong of Huzhou silica micropowder Ltd
New Material Ltd of New Material of New North Hubei Methyltris ketoximino silane
New Material Ltd of New Material of New North Hubei Tributanone oxime silane
Tetrabutanone oxime silane Hubei New Material Ltd
Dibutyl tin dilaurate Hubei New materials, Inc.
Example 1:
the preferable oil-resistant silicone sealant comprises the following components in percentage by mass:
107 silicone rubber (20000 cps) 100 parts
100 portions of calcium carbonate
KH-550 coupling agent 2 parts
5 portions of R-974 white carbon black
10 parts of methyl tributyl ketoxime silane
5 parts of tetrabutoximosilane
0.25 portion of dibutyltin dilaurate
30 portions of dimethyl silicone oil (10 cps)
Example 2
An oil-resistant organosilicon sealant comprises the following components in percentage by mass:
107 silicone rubber (20000 cps) 100 parts
65 portions of calcium carbonate
Silicon micropowder 35 parts
KH-550 coupling agent 2 parts
5 portions of R-974 white carbon black
10 parts of methyl tributyl ketoxime silane
5 parts of tetrabutoximosilane
0.25 portion of dibutyltin dilaurate
20 portions of dimethyl silicone oil (10 cps)
Example 3
An oil-resistant organosilicon sealant comprises the following components in percentage by mass:
107 parts of silicone rubber (80000 cps)
75 portions of calcium carbonate
25 portions of zinc oxide
KH-550 coupling agent 2 parts
5 portions of R-974 white carbon black
10 portions of phenyl tributyroximo silane
5 parts of tetrabutoximosilane
0.25 portion of dibutyltin dilaurate
10 parts of dimethyl silicone oil (10 cps)
Comparative example 1
107 silicone rubber (20000 cps) 100 parts
100 portions of calcium carbonate
KH-550 coupling agent 2 parts
5 portions of R-974 white carbon black
10 parts of methyl tributyl ketoxime silane
5 parts of tetrabutoximosilane
0.25 portion of dibutyltin dilaurate
30 portions of dimethyl silicone oil (350 cps)
The preparation method of the oil-resistant organosilicon sealant comprises the following steps: adding 107 silicon rubber and calcium carbonate into a power mixer according to the amount, stirring for 10min, heating to 120 ℃, vacuumizing and stirring for 3 hours, and naturally cooling to room temperature; adding cross-linking agent, and stirring under vacuum for 20 min; adding white carbon black, and stirring for 20min under vacuum; adding a coupling agent, an oil-resistant additive and a catalyst, and stirring for 20min in vacuum to obtain the uniform, fine and thixotropic oil-resistant organosilicon sealant.
Treating the glue in a polytetrafluoroethylene mold according to GB/T2941, and curing for 168 hours at the temperature of 23 +/-2 ℃, wherein the test method is as follows:
(1) and (3) oil resistance test: and (3) carrying out an engine oil resistance test on the material according to GB/T1690, wherein the soaking aging temperature is 125 ℃, and the aging time is 168 h.
(2) And (3) testing tensile stress strain performance: tensile stress strain testing was performed according to GB/T528.
(3) And (3) testing heat resistance: the material is subjected to a heat resistance test according to GB/T3512, and the aging temperature is 200 ℃, and the aging time is 168 h.
(4) And (3) testing the hardness of the sealant: and (4) carrying out a hardness test on the sealant according to GB/T531.2.
The results of the room temperature standing property test are shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Tensile strength Mpa | 2.52 | 2.75 | 2.81 | 2.55 |
| Elongation at break% | 456 | 430 | 418 | 460 |
| Hardness A | 30 | 37 | 42 | 32 |
The results of the oil resistance test on the relevant properties are shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Tensile strength Mpa | 2.41 | 2.50 | 2.54 | 1.87 |
| Elongation at break% | 537 | 475 | 440 | 613 |
| Hardness A | 28 | 34 | 38 | 21 |
The results of the heat resistance test-related performance test are shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Tensile strength Mpa | 2.65 | 2.82 | 2.87 | 2.0 |
| Elongation at break% | 390 | 371 | 345 | 410 |
| Hardness A | 33 | 41 | 47 | 35 |
As shown in the table, the oil resistance of the organosilicon sealant is greatly improved by the low-viscosity dimethyl silicone oil, the original heat resistance is kept, and the change of the related mechanical properties is small. Other different fillers can be added in the formula, so that the sealant has other properties.
The weight parts of the raw materials in the invention are preferably as follows: 100-150 parts of alpha, omega-dihydroxy polysiloxane (107 silicon rubber), 10-20 parts of ketoxime cross-linking agent, 1-3 parts of aminosilane coupling agent, 50-200 parts of filler, 0.1-0.3 part of tin catalyst, 10-50 parts of oil-resistant additive and 2-10 parts of white carbon black.
Wherein the alpha, omega-dihydroxy polysiloxane (107 silicon rubber) can also be alpha, omega-dihydroxy polysiloxane, and the fluid viscosity is 5000-; the ketoxime cross-linking agent can also be one or a mixture of methyl tributyl ketoxime silane, vinyl tributyroxime silane, phenyl tributyroxime silane, tetrabutoxime silane and methyl triacetoxy silane; the filler can also be one or more of calcium carbonate, silica micropowder, zinc oxide, carbon black, titanium dioxide and white carbon black; the organic tin catalyst can also be one or a mixture of a plurality of types of dibutyltin bisacetylacetonate, dibutyltin dilaurate and dibutyltin diacetate; the aminosilane coupling agent can also be a primary amine or secondary amine coupling agent, and comprises one or more of gamma-aminopropyltrimethoxysilane (KH-540), gamma-aminopropyltriethoxysilane (KH-550), N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH-792) and the like; the oil-resistant additive can also be one or a mixture of low-viscosity dimethyl silicone oil and fluid viscosity of 5-30 cps.
According to the invention, through the dimethyl silicone oil with specific viscosity, the oil resistance of the organosilicon sealant is greatly improved, the original heat resistance is kept, the change of related mechanical properties is small, other different fillers can be added into the formula, and the organosilicon sealant can have other properties so as to achieve the purpose of improving the oil resistance.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An oil-resistant organosilicon sealant is characterized in that: comprises the following raw material components in parts by mass,
100 portions of alpha, omega-dihydroxy polysiloxane (107 silicone rubber) 150
10-20 parts of ketoxime cross-linking agent
50-200 parts of filler
0.1 to 0.3 portion of tin catalyst
1-3 parts of amino silane coupling agent
10-50 parts of oil-resistant additive
2-10 parts of white carbon black.
2. The oil resistant silicone sealant according to claim 1, characterized in that: the alpha, omega-dihydroxy polysiloxane (107 silicon rubber) is alpha, omega-dihydroxy polysiloxane, and the fluid viscosity is one or a mixture of 5000-80000 cps.
3. The oil resistant silicone sealant according to claim 1, characterized in that: the ketoxime cross-linking agent is one or a mixture of methyl tributyl ketoxime silane, vinyl tributyroxime silane, phenyl tributyroxime silane, tetrabutoxime silane and methyl triacetone hydroxyxime silane.
4. The oil resistant silicone sealant according to claim 1, characterized in that: the filler is one or more of calcium carbonate, silica micropowder, zinc oxide, carbon black, titanium dioxide and white carbon black.
5. The oil resistant silicone sealant according to claim 1, characterized in that: the organic tin catalyst is one or a mixture of a plurality of types of dibutyltin bisacetylacetonate, dibutyltin dilaurate and dibutyltin diacetate.
6. The oil resistant silicone sealant according to claim 1, characterized in that: the aminosilane coupling agent is a primary amine or secondary amine coupling agent and comprises one or more of gamma-aminopropyltrimethoxysilane (KH-540), gamma-aminopropyltriethoxysilane (KH-550), N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH-792) and the like.
7. The oil resistant silicone sealant according to claim 1, characterized in that: the oil-resistant additive is low-viscosity dimethyl silicone oil, and the viscosity of the fluid is 5-30 cps.
8. A process for preparing an oil resistant silicone sealant according to any one of claims 1 to 7 wherein: the method comprises the following process steps:
(1) adding 107 silicon rubber and a filler into a power mixer according to the amount, stirring for 20min, heating to 120 ℃, vacuumizing and stirring for 3 hours;
(2) naturally cooling to room temperature, adding the cross-linking agent, and stirring in vacuum for 20 min;
(3) adding white carbon black, and stirring for 20min in vacuum;
(4) adding a coupling agent, a catalyst and an oil-resistant additive, and stirring for 20min in vacuum to obtain the uniform, fine and thixotropic single-component oil-resistant organosilicon sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011232534.9A CN112210340A (en) | 2020-11-06 | 2020-11-06 | Oil-resistant organosilicon sealant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011232534.9A CN112210340A (en) | 2020-11-06 | 2020-11-06 | Oil-resistant organosilicon sealant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112210340A true CN112210340A (en) | 2021-01-12 |
Family
ID=74058257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011232534.9A Pending CN112210340A (en) | 2020-11-06 | 2020-11-06 | Oil-resistant organosilicon sealant and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112210340A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584238A (en) * | 2022-11-28 | 2023-01-10 | 唐山三孚纳米材料有限公司 | Pure white sealant prepared from single-component room temperature vulcanized silicone rubber and preparation method thereof |
| CN115851221A (en) * | 2022-07-15 | 2023-03-28 | 杭州奥方科技有限公司 | Rapidly-formed UV (ultraviolet) curing silicon sealant and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333427A (en) * | 2007-06-30 | 2008-12-31 | 湖北回天胶业股份有限公司 | Adhesive monocomponent organosilicon sealant |
| CN102532907A (en) * | 2011-12-07 | 2012-07-04 | 北京天山新材料技术股份有限公司 | Preparation method of oil-resistant room temperature vulcanization deoximation silicon rubber |
| CN103013124A (en) * | 2012-12-31 | 2013-04-03 | 上海回天化工新材料有限公司 | High-curing-speed, high-storage-stability and humidity/heat-resistant de-oximed room temperature vulcanized silicone rubber for new energy and preparation method thereof |
| CN103834171A (en) * | 2014-02-26 | 2014-06-04 | 北京天山新材料技术股份有限公司 | Oil-resistant room-temperature vulcanized deoximated silicon rubber and preparation method thereof |
| CN104610907A (en) * | 2015-02-12 | 2015-05-13 | 北京天山新材料技术有限公司 | One-component deoximation type room-temperature vulcanized silicone rubber sealant and preparation method thereof |
| CN105907360A (en) * | 2016-06-29 | 2016-08-31 | 杭州之江有机硅化工有限公司 | Silicon rubber sealant and preparation method thereof |
| CN107513366A (en) * | 2017-09-11 | 2017-12-26 | 江苏天辰新材料股份有限公司 | A kind of oil resistant fluid sealant and preparation method thereof |
| CN109880580A (en) * | 2019-01-31 | 2019-06-14 | 无锡海特信成高分子科技有限公司 | A kind of resistance to alcohol, acid type room temperature vulcanized organosilicon sealant and preparation method thereof |
| CN110272713A (en) * | 2018-03-13 | 2019-09-24 | 佛山市南海祥盛建筑材料有限公司 | Silicone sealant and its preparation method and application |
-
2020
- 2020-11-06 CN CN202011232534.9A patent/CN112210340A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333427A (en) * | 2007-06-30 | 2008-12-31 | 湖北回天胶业股份有限公司 | Adhesive monocomponent organosilicon sealant |
| CN102532907A (en) * | 2011-12-07 | 2012-07-04 | 北京天山新材料技术股份有限公司 | Preparation method of oil-resistant room temperature vulcanization deoximation silicon rubber |
| CN103013124A (en) * | 2012-12-31 | 2013-04-03 | 上海回天化工新材料有限公司 | High-curing-speed, high-storage-stability and humidity/heat-resistant de-oximed room temperature vulcanized silicone rubber for new energy and preparation method thereof |
| CN103834171A (en) * | 2014-02-26 | 2014-06-04 | 北京天山新材料技术股份有限公司 | Oil-resistant room-temperature vulcanized deoximated silicon rubber and preparation method thereof |
| CN104610907A (en) * | 2015-02-12 | 2015-05-13 | 北京天山新材料技术有限公司 | One-component deoximation type room-temperature vulcanized silicone rubber sealant and preparation method thereof |
| CN105907360A (en) * | 2016-06-29 | 2016-08-31 | 杭州之江有机硅化工有限公司 | Silicon rubber sealant and preparation method thereof |
| CN107513366A (en) * | 2017-09-11 | 2017-12-26 | 江苏天辰新材料股份有限公司 | A kind of oil resistant fluid sealant and preparation method thereof |
| CN110272713A (en) * | 2018-03-13 | 2019-09-24 | 佛山市南海祥盛建筑材料有限公司 | Silicone sealant and its preparation method and application |
| CN109880580A (en) * | 2019-01-31 | 2019-06-14 | 无锡海特信成高分子科技有限公司 | A kind of resistance to alcohol, acid type room temperature vulcanized organosilicon sealant and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115851221A (en) * | 2022-07-15 | 2023-03-28 | 杭州奥方科技有限公司 | Rapidly-formed UV (ultraviolet) curing silicon sealant and preparation method thereof |
| CN115584238A (en) * | 2022-11-28 | 2023-01-10 | 唐山三孚纳米材料有限公司 | Pure white sealant prepared from single-component room temperature vulcanized silicone rubber and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101412835B (en) | Blend of fluorubber and silastic, and preparation thereof | |
| CN111534105B (en) | Anti-aging silicone rubber sealing material for high-speed rail sealing element and preparation method thereof | |
| CN112210340A (en) | Oil-resistant organosilicon sealant and preparation method thereof | |
| US6413354B1 (en) | Oil resistant silicones | |
| CN105199657A (en) | Polyurethane sealant and preparation method thereof | |
| CN115124974A (en) | Dealcoholized organosilicon sealant and preparation method thereof | |
| CN102093721A (en) | Single-component alcohol/ketoxime-removed room temperature vulcanizing silicone rubber and preparation method thereof | |
| CN110885657A (en) | Preparation method of single-component high-strength MS sealant | |
| CN105820790B (en) | A kind of acid-resistant and heat-resistant elastic adhesive and preparation method thereof | |
| CN112980375A (en) | Single-component silane modified polyether sealant and preparation method thereof | |
| CN110615990A (en) | Temperature-resistant acid-resistant fluorosilicone rubber elastomer material and preparation method and application thereof | |
| CN113956835A (en) | Organosilicon sealant for U-shaped heating pipe and preparation method thereof | |
| CN107936562B (en) | Non-corrosive ketoxime type room temperature curing silicone rubber and preparation method thereof | |
| CN111139022A (en) | Special silicon-containing adhesive for sealing with temperature resistance, oil resistance and solvent resistance and preparation method thereof | |
| CN110791198A (en) | Coating material and preparation method thereof | |
| CN111534124B (en) | High-temperature rubber-generating thermal protection material and preparation method thereof | |
| CN111471394A (en) | High-strength silicone waterproof coating for bridge deck and preparation process thereof | |
| CN111117261A (en) | High-temperature-resistant fluorine silicon rubber material | |
| CN110776748A (en) | Addition type fluorosilicone rubber and preparation method thereof | |
| CN116948276B (en) | Silicone rubber sealing ring and preparation method thereof | |
| CN112795194B (en) | Gear oil resistant single-component room temperature vulcanized silicone rubber and preparation method thereof | |
| CN112574374B (en) | Modified polyurethane high-temperature-resistant rubber and preparation method thereof | |
| CN104231636B (en) | A kind of method for improving silastic product compression set | |
| CN112625648B (en) | High-temperature-resistant oil bath room-temperature curing silicone rubber and preparation method thereof | |
| CN115141600B (en) | Neutral oil-resistant silicone sealant and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210112 |
|
| RJ01 | Rejection of invention patent application after publication |