CN106753200A - It is a kind of to base material not adhesion type silicone rubber sealant and preparation method thereof - Google Patents
It is a kind of to base material not adhesion type silicone rubber sealant and preparation method thereof Download PDFInfo
- Publication number
- CN106753200A CN106753200A CN201611129538.8A CN201611129538A CN106753200A CN 106753200 A CN106753200 A CN 106753200A CN 201611129538 A CN201611129538 A CN 201611129538A CN 106753200 A CN106753200 A CN 106753200A
- Authority
- CN
- China
- Prior art keywords
- silicone rubber
- rubber sealant
- weight portion
- mesh
- base material
- 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.)
- Granted
Links
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
- 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
-
- 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
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a kind of to base material not adhesion type silicone rubber sealant, it is prepared from by the raw material including following weight portion：The weight portion of α, ω dialkyl polydimethylsiloxane 100；The weight portion of white oil 5~40；The weight portion of silicon powder 50~150；The weight portion of cerium oxide 0~30；The weight portion of di-iron trioxide 0~50；The weight portion of titanium dioxide 0~20；The weight portion of white carbon 5~30；The weight portion of thickener 1~10；The weight portion of carbon black 0~10；The weight portion of mill base 0~10；The weight portion of crosslinking agent 5~15；The weight portion of catalyst 0.01~0.5.The materials such as metal (such as stainless steel, cold-rolled steel, aluminium, anodised aluminium), various plastics (PVC, ABS) are not bonded after the silicone rubber sealant solidification that the present invention is provided, it is easily peelable and with good oil resistivity.
Description
Technical field
The invention belongs to sealant technical field, and in particular to a kind of to base material not adhesion type silicone rubber sealant and its system
Preparation Method.
Background technology
In use, the binding site of each parts can often three leakages (oil leak, leak, gas leakage) to automobile engine occur
Phenomenon, not only wastes oil plant, pollution environment, and brings difficulty to maintenance, and produces economic loss.Tradition solves to start
The method of machine three leakages problem is mainly using preforming gasket seal, preforming gasket seal refer mainly to using specific material by
Parts are processed into size requirement according to drawing, are being installed on engine, mainly there is nonmetallic rubber sheet gasketing, asbestos rubber
Glue gasket, metallic gasket, cork sheet pad etc..But this pad is not high due to precision, tiny gap, hole etc. are difficult to
Sealing function is played, while also yielding, complex-shaped processing is also difficult, and waste of material is serious.Current this preforming pad
Piece is more and more replaced by in-place molding gasket seal, and in-place molding gasket seal is mainly using sealant sealing,
Elastomer is formed by sealant coating to the position for needing sealing, after sealant cures play sealing function.
The use of most sealant is at present silicone rubber sealant, this be primarily due to silicone rubber sealant have it is good
Weatherability, resistant of high or low temperature (- 60 DEG C -260 DEG C), electrical insulating property etc..But silicon rubber oil resistivity in itself is poor, silicone rubber seal
Agent must improve the oil resistivity of silicone rubber sealant by adding various resistance to oil packings when in use.Many patents are all to silicon rubber
The oil resistivity of glue sealant carried out research.Such as Japan, Unexamined Patent 8-269435.1996 and Japan, Unexamined Patent 9-
The 118826.1997 main oil resistivitys for improving silicon rubber as filler using calcium carbonate.US6413354 using white carbon, receive
Rice calcium carbonate and coarse whiting are filler, obtain a kind of silicone rubber sealant of oil resistant.US4847356, WO0027910 etc. also through
Add the silicone rubber sealant that various fillers have obtained oil resistant.But these sealants have good caking property to metal, though
Good sealing, oil-resistant effect are so served, but dismounting is difficult, it is impossible to the random dismounting and change as preforming pad.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of to base material not adhesion type silicone rubber sealant
And preparation method thereof, it is non-caked to base material, easily peelable after the silicone rubber sealant solidification that the present invention is provided, and with good
Oil resistivity and mechanical strength.
The invention provides a kind of to base material not adhesion type silicone rubber sealant, prepared by the raw material including following weight portion
Form：
Preferably, the α, the kinematic viscosity of alpha, omega-dihydroxy polydimethyl siloxane is 1000~80000mm2/s。
Preferably, the mesh number of the silicon powder is not less than 150 mesh；The mesh number of the cerium oxide is not less than 150 mesh；Described three
Aoxidize two iron mesh numbers and be not less than 150 mesh；The titanium dioxide is fumed nano grade titanium dioxide；The mesh number of the carbon black is not low
In 150 mesh.
Preferably, the white carbon is precipitated silica or fume colloidal silica.
Preferably, the thickener is selected from polyamide-based thickener.
Preferably, the crosslinking agent is selected from methyl tri acetylacetonate oximino silane, methyl tributanoximo silane, the butanone of phenyl three
One or more in oximino silane, vinyl tributyl ketoximyl silane and four butanone oximino silanes etc..
Preferably, the catalyst is selected from organotin catalysts.
Present invention also offers a kind of above-mentioned preparation method to base material not adhesion type silicone rubber sealant, including following step
Suddenly：
A) by α, alpha, omega-dihydroxy polydimethyl siloxane, white carbon, carbon black, silicon powder, di-iron trioxide, titanium dioxide,
After cerium oxide and mill base carry out Hybrid Heating stirring, vacuum dehydration is carried out, add thickener and mixed；
B white oil and crosslinking agent) are added, is stirred under vacuum；
C catalyst) is added, is stirred under vacuum, obtained to base material not adhesion type silicone rubber sealant.
Preferably, step A) in, 100~150 DEG C of the temperature of the heating stirring, the pressure of vacuum dehydration for -0.09~-
0.1MPa, the time of vacuum dehydration is 2~4 hours.
Preferably, step A) in, the time >=30min for adding thickener to be mixed, stirring is cooled to after terminating
≤70℃。
Compared with prior art, the invention provides a kind of to base material not adhesion type silicone rubber sealant, by including following
The raw material of weight portion is prepared from：α, the weight portion of alpha, omega-dihydroxy polydimethyl siloxane 100；The weight portion of white oil 5~40；Silicon is micro-
The weight portion of powder 50~150；The weight portion of cerium oxide 0~30；The weight portion of di-iron trioxide 0~50；The weight portion of titanium dioxide 0~20；
The weight portion of white carbon 5~30；The weight portion of thickener 1~10；The weight portion of carbon black 0~10；The weight portion of mill base 0~10；Crosslinking agent 5~
15 weight portions；The weight portion of catalyst 0.01~0.5.The present invention provide silicone rubber sealant solidification after to metal (such as stainless steel,
Cold-rolled steel, aluminium, anodised aluminium etc.), the material such as various plastics (PVC, ABS) be not bonded, it is easily peelable and with good resistance to
Oiliness.This sealant can be used for the assembling and maintenance of various vehicles, can be used for oil sump, gear-box, ring flange, vehicle bridge etc.
The sealing at position, it is also possible to be widely used in the sealing of the equipment such as various machineries, chemical industry, electronics.
Specific embodiment
The invention provides a kind of to base material not adhesion type silicone rubber sealant, prepared by the raw material including following weight portion
Form：
What the present invention was provided includes the α of 100 weight portions, alpha, omega-dihydroxy poly- two to the non-caked type silicone rubber sealant of base material
Methylsiloxane, wherein, the α, the kinematic viscosity of alpha, omega-dihydroxy polydimethyl siloxane is preferably 1000~80000mm2/
S, the present invention can be used alone a kind of α of viscosity, alpha, omega-dihydroxy polydimethyl silica, it is also possible to the α of several different viscosities,
The collocation of alpha, omega-dihydroxy polydimethyl silica is used.In some specific embodiments of the invention, the α, alpha, omega-dihydroxy poly- two
Methylsiloxane is 1000mm from kinematic viscosity2/s、1500mm2/s、20000mm2/s、80000mm2The α of/s, alpha, omega-dihydroxy
One or more in dimethyl silicone polymer.
The silicone rubber sealant that the present invention the is provided also white oil including 5~40 weight portions, preferably 10~30 mass parts, more
Preferably 15~25 mass parts.In the present invention, the white oil primarily serves plasticization, while sealant can be reduced further
With the cementability of base material.
The sealant that the present invention the is provided also silicon powder including 50~150 weight portions, preferably 70~110 weight portions, more
Preferably 90~110 weight portions.The mesh number of the silicon powder is not less than 150 mesh, preferably 500~2000 mesh.In the present invention,
The silicon powder primarily serves humidification, while also acting as the effect for improving sealant oil resistivity.
The sealant that the present invention the is provided also cerium oxide including 0~30 weight portion, preferably 5~25 mass parts, more preferably
It is 10~20 mass parts.The mesh number of the cerium oxide is not less than 150 mesh, preferably 500~1500 mesh.In the present invention, it is described
Cerium oxide primarily serves humidification, while also acting as the effect for improving sealant oil resistivity, and also is refractory agent, extends close
Envelope agent service life at high temperature.
The sealant that the present invention the is provided also di-iron trioxide including 0~50 weight portion, preferably 10~40 mass parts, more
Preferably 20~30 mass parts.The di-iron trioxide mesh number is not less than 150 mesh, preferably 500~2000 mesh.Three oxidation
Two iron primarily serve humidification, while also acting as the effect for improving sealant oil resistivity, and also are refractory agents, extension sealing
Agent service life at high temperature.
The sealant that the present invention the is provided also titanium dioxide including 0~20 weight portion, preferably 2~18 weight portions are more excellent
Elect 5~15 weight portions as.In the present invention, the titanium dioxide is preferably fumed nano grade titanium dioxide, the titanium dioxide
Titanium primarily serves humidification, while also acting as the effect for improving sealant oil resistivity, and also is refractory agent, extends sealant
Service life at high temperature, furthermore it is also possible to play the thixotropic effect of raising.
The sealant that the present invention the is provided also white carbon including 5~30 weight portions, preferably 10~25 mass parts, more preferably
It is 15~20 mass parts.The white carbon is preferably precipitated silica or fume colloidal silica.In the present invention, the hard charcoal
It is black to primarily serve humidification, while also acting as the effect for improving sealant oil resistivity, and may also operate as improving thixotropy
Effect.
The sealant that the present invention is provided the also carbon black including 0~10 weight portion, preferably 2~8 mass parts, more preferably 4
~6 mass parts.The mesh number of the carbon black is not less than 150 mesh, preferably 500~2000 mesh.In the present invention, the carbon black is main
Humidification is played, while the effect for improving sealant oil resistivity is also acted as, and also with mixing colours and improve thixotropic
Effect.
The sealant that the present invention the is provided also thickener including 1~10 weight portion, preferably 2~8 mass parts, more preferably
4~6 mass parts.In the present invention, the thickener is preferably polyamide-based thickener, more preferably polyamide modified castor oil
Thickener or polyamide wax thickener.
The sealant that the present invention is provided the also mill base including 0~10 weight portion, preferably 2~8 mass parts, more preferably 4
~6 mass parts.The mill base can be black slurry, silver color slurry, blue slurry, red slurry etc., and color can be adjusted as needed.
The sealant that the present invention the is provided also crosslinking agent including 5~15 weight portions, preferably 7~12 weight portions, more preferably
It is 9~11 weight portions.The crosslinking agent is selected from methyl tri acetylacetonate oximino silane, methyl tributanoximo silane, the butanone of phenyl three
One or more in oximino silane, vinyl tributyl ketoximyl silane and four butanone oximino silanes etc..
The present invention provide sealant also include 0.01~0.5 part by weight of catalyst, preferably 0.05~0.4 weight portion,
More preferably 0.1~0.3 mass parts.The catalyst is preferably organotin catalysts, more preferably dibutyl tin laurate,
Tin dilaurate dioctyl tin, two pungent certain herbaceous plants with big flowers acid stannous methides, dibutyltin diacetate, stannous octoate, stannous oxalate, two (dodecanes
Base sulphur) dibutyl tin, the tin of the bis- bay acyl-oxygen -1,1,3,3- tetrabutyls of 1,3- two, dibutyitin maleate and two acyl-oxygen heptane two
One or more in butyl tin.
Present invention also offers a kind of above-mentioned preparation method to base material not adhesion type silicone rubber sealant, including following step
Suddenly：
A) by α, alpha, omega-dihydroxy polydimethyl siloxane, white carbon, carbon black, silicon powder, di-iron trioxide, titanium dioxide,
After cerium oxide and mill base carry out Hybrid Heating stirring, vacuum dehydration is carried out, add thickener and mixed；
B white oil and crosslinking agent) are added, is stirred under vacuum；
C catalyst) is added, is stirred under vacuum, obtained to base material not adhesion type silicone rubber sealant.
The present invention first by α, alpha, omega-dihydroxy polydimethyl siloxane, white carbon, carbon black, silicon powder, di-iron trioxide,
Titanium dioxide, cerium oxide and mill base carry out Hybrid Heating stirring, wherein, the temperature of the heating stirring is preferably 100~150
DEG C, more preferably 110~140 DEG C.Then, vacuum dehydration is carried out to said mixture, the pressure of the vacuum dehydration is preferably-
0.09~-0.1MPa, the time of the vacuum dehydration is preferably 2~4 hours.
Then, thickener is added to be mixed；Wherein, the time of the mixing >=30min, preferably 30
~60min, stirring is cooled to≤70 DEG C, preferably 20~60 DEG C after terminating.
Then, white oil and crosslinking agent are added, is stirred under vacuum；The vacuum of the vacuum condition is preferred
It is -0.09~-0.1MPa.
Finally, catalyst is added, is stirred under vacuum, obtained to base material not adhesion type silicone rubber sealant.
The vacuum of the vacuum condition is preferably -0.09~-0.1MPa.
The invention provides a kind of silicone rubber sealant, this sealant does not only have good oil resistance, and solidification
Metal is not bonded afterwards, is easily peeled off, be particularly well-suited to the assembling and maintenance of the equipment such as various vehicles and machinery, chemical industry, electronics.
The silicone rubber sealant of the application adjusts the content of various components by adding said components, it is interacted, and finally makes
The existing good oil resistance of silicone rubber sealant, and with to base material not adhesive property.
For a further understanding of the present invention, with reference to embodiment the present invention is provided to base material not adhesion type silicon rubber
Sealant and preparation method thereof is illustrated, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
It is 1000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, silicon powder, fume colloidal silica,
Carbon black is stirred in being added to planet machine, while heated to 100 DEG C, the vacuum dehydration 4h under -0.096MPa adds thickener afterwards
Stirring 30min, is cooled to 60 DEG C, adds white oil and methyl tributanoximo silane, and two are stirring evenly and then adding under vacuum condition
Dibutyl tin laurate, stir discharging under vacuum.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 2.
The present embodiment silicone rubber sealant constituent content tables of data of table 1
The silicone rubber sealant performance data table of the present embodiment of table 2
Embodiment 2
It is 20000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, silicon powder, precipitation method hard charcoal
Black, carbon black is stirred in being added to planet machine, while heated to 110 DEG C, the vacuum dehydration 2h under -0.096MPa is added increase afterwards
Thick dose of stirring 30min, is cooled to 55 DEG C, adds white oil and methyl tri acetylacetonate oximino silane, methyl tributanoximo silane, ethene
Tin dilaurate dioctyl tin is stirring evenly and then adding under base tributanoximo silane, vacuum condition, stirs equal under vacuum
Even discharging.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 4.
The present embodiment silicone rubber sealant constituent content tables of data of table 3
The silicone rubber sealant performance data table of the present embodiment of table 4
Embodiment 3
It is 80000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, silicon powder, vapor phase method hard charcoal
Black, mill base etc. is stirred in being added to planet machine, while heated between 115 DEG C, the vacuum dehydration 3h under -0.098MPa, afterwards
Thickener stirring 45min is added, 55 DEG C are cooled to, white oil and methyl tributanoximo silane, vinyl tributanoximo is added
Two pungent certain herbaceous plants with big flowers acid stannous methides are stirring evenly and then adding under silane, vacuum condition, stir discharging under vacuum.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 6.
The present embodiment silicone rubber sealant constituent content tables of data of table 5
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 1500 mesh silicon powders | 90 |
| White oil | 40 |
| Specific surface area 150m2/ g fume colloidal silicas | 30 |
| Polyamide modified castor oil thickener | 1 |
| Silver color is starched | 5 |
| Methyl tributanoximo silane | 2 |
| Vinyl tributyl ketoximyl silane | 3 |
| Two pungent certain herbaceous plants with big flowers acid stannous methides | 0.1 |
The silicone rubber sealant performance data table of the present embodiment of table 6
Embodiment 4
It is 1500mm by kinematic viscosity2/ s and 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane is according to 1:1
Weight ratio, silicon powder, cerium oxide, fume colloidal silica and blue slurry etc. are stirred in being added to planet machine, while heated to 110
DEG C, the vacuum dehydration 3h under -0.098MPa adds thickener stirring 60min afterwards, is cooled to 50 DEG C, adds white oil and methyl
Tributanoximo silane, vinyl tributyl ketoximyl silane and four butanone oximino silanes, are stirring evenly and then adding under vacuum condition
Dibutyltin diacetate, stir discharging under vacuum.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 8.
The present embodiment silicone rubber sealant constituent content tables of data of table 7
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 1500 mesh silicon powders | 80 |
| 800 mesh cerium oxide | 20 |
| White oil | 40 |
| Specific surface area 300m2/ g fume colloidal silicas | 5 |
| Blueness slurry | 5 |
| Polyamide modified castor oil thickener | 10 |
| Methyl tributanoximo silane | 8 |
| Vinyl tributyl ketoximyl silane | 2 |
| Four butanone oximino silanes | 2 |
| Dibutyltin diacetate | 0.01 |
The silicone rubber sealant performance data table of the present embodiment of table 8
Embodiment 5
It is 1500mm by kinematic viscosity2/ s and 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane is according to 1:1
Weight ratio, silicon powder, cerium oxide, fume colloidal silica and silver color slurry are added in planet machine and stir, while heated to 120 DEG C it
Between, the vacuum dehydration 4h under -0.098MPa adds thickener stirring 50min afterwards, is cooled to 40 DEG C, adds white oil and methyl
Tributanoximo silane, vinyl tributyl ketoximyl silane and four butanone oximino silanes, are stirring evenly and then adding under vacuum condition
Dibutyl tin laurate, stir discharging under vacuum.
The present embodiment silicone rubber sealant constituent content tables of data of table 9
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 1000 mesh silicon powders | 80 |
| 1000 mesh cerium oxide | 10 |
| White oil | 15 |
| Specific surface area 200m2/ g fume colloidal silicas | 20 |
| Silver color is starched | 7 |
| Polyamide modified castor oil thickener | 3 |
| Methyl tributanoximo silane | 7 |
| Vinyl tributyl ketoximyl silane | 2 |
| Four butanone oximino silanes | 1 |
| Dibutyl tin laurate | 0.05 |
The silicone rubber sealant performance data table of the present embodiment of table 10
Embodiment 6
It is 20000mm by kinematic viscosity2/ s and 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane is according to 1:1
Weight ratio, silicon powder, precipitated silica, carbon black are stirred in being added to planet machine, while heated to 150 DEG C, in -0.099MPa
Lower vacuum dehydration 3h, adds thickener stirring 45min afterwards, is cooled to 20 DEG C, add white oil and methyl tributanoximo silane,
Vinyl tributyl ketoximyl silane and phenyl tributanoximo silane, are stirring evenly and then adding into maleic acid dibutyl under vacuum condition
Tin, stir discharging under vacuum.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 12.
The present embodiment silicone rubber sealant constituent content tables of data of table 11
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 1500 mesh silicon powders | 100 |
| White oil | 20 |
| Precipitated silica | 20 |
| 2000 mesh carbon blacks | 5 |
| Polyamide modified castor oil thickener | 2.5 |
| Methyl tributanoximo silane | 6 |
| Vinyl tributyl ketoximyl silane | 1 |
| Phenyl tributanoximo silane | 1 |
| Dibutyitin maleate | 0.2 |
The silicone rubber sealant performance data table of the present embodiment of table 12
Embodiment 7
It is 80000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, silicon powder, vapor phase method hard charcoal
Black, fumed titanium dioxide is stirred in being added to planet machine, while heated to 130 DEG C, the vacuum dehydration 2h under -0.09MPa, it
Thickener stirring 30min is added afterwards, 30 DEG C are cooled to, and adds white oil and methyl tributanoximo silane, the diacetylmonoxime of vinyl three
Dibutyl tin laurate is stirring evenly and then adding under base silane, vacuum condition, stir discharging under vacuum.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 14.
The present embodiment silicone rubber sealant constituent content tables of data of table 13
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 800 mesh silicon powders | 80 |
| Fumed titanium dioxide | 5 |
| White oil | 5 |
| Specific surface area 380m2/ g fume colloidal silicas | 6 |
| 500 mesh carbon blacks | 2 |
| Polyamide modified castor oil thickener | 2.5 |
| Methyl tributanoximo silane | 8 |
| Vinyl tributyl ketoximyl silane | 2 |
| Dibutyl tin laurate | 0.3 |
The silicone rubber sealant performance data table of the present embodiment of table 14
Embodiment 8
It is 80000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, silicon powder, vapor phase method hard charcoal
Black, fumed titanium dioxide is stirred in being added to planet machine, while heated to 110 DEG C, the vacuum dehydration 2h under -0.092MPa,
Thickener stirring 45min is added afterwards, 40 DEG C are cooled to, and adds white oil and methyl tributanoximo silane, the butanone of vinyl three
Oximino silane, four butanone oximino silanes, are stirring evenly and then adding into two acyl-oxygen heptane dibutyl tins, in vacuum condition under vacuum condition
Under stir discharging.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 16.
The present embodiment silicone rubber sealant constituent content tables of data of table 15
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 800 mesh silicon powders | 80 |
| Fumed titanium dioxide | 10 |
| White oil | 5 |
| Specific surface area 200m2/ g fume colloidal silicas | 5 |
| Polyamide wax thickener | 3 |
| Methyl tributanoximo silane | 6 |
| Vinyl tributyl ketoximyl silane | 2 |
| Four butanone oximino silanes | 2 |
| Two acyl-oxygen heptane dibutyl tins | 0.05 |
The silicone rubber sealant performance data table of the present embodiment of table 16
Embodiment 9
It is 20000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, silicon powder, vapor phase method titanium dioxide
Titanium, fume colloidal silica are stirred in being added to planet machine, while heated between 110 DEG C, the vacuum dehydration under -0.095MPa
3h, adds thickener stirring 60min afterwards, is cooled to 60 DEG C, adds white oil and methyl tributanoximo silane, the fourth of vinyl three
Ketoximinosilanes, four butanone oximino silanes, are stirring evenly and then adding into dibutyl tin laurate, in vacuum condition under vacuum condition
Under stir discharging.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 18.
The present embodiment silicone rubber sealant constituent content tables of data of table 17
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 2000 mesh silicon powders | 100 |
| Fumed titanium dioxide | 20 |
| Specific surface area 200m2/ g fume colloidal silicas | 5 |
| White oil | 10 |
| Polyamide wax thickener | 2 |
| Red slurry | 10 |
| Methyl tributanoximo silane | 5 |
| Vinyl tributyl ketoximyl silane | 1 |
| Four butanone oximino silanes | 2 |
| Dibutyl tin laurate | 0.1 |
The silicone rubber sealant performance data table of the present embodiment of table 18
Embodiment 10
It is 20000mm by kinematic viscosity2/ s and 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane is according to 1:1
Weight ratio, silicon powder, di-iron trioxide, precipitated silica etc. are stirred in being added to planet machine, while heated to 120 DEG C ,-
Vacuum dehydration 4h under 0.09MPa, adds thickener stirring 30min afterwards, is cooled to 55 DEG C, adds white oil and the diacetylmonoxime of methyl three
Dibutyl tin laurate is stirring evenly and then adding under base silane, vinyl tributyl ketoximyl silane, vacuum condition, in vacuum bar
Stir discharging under part.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 20.
The present embodiment silicone rubber sealant constituent content tables of data of table 19
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 800 mesh silicon powders | 90 |
| 2000 mesh di-iron trioxides | 30 |
| White oil | 12 |
| Specific surface area 200m2/ g precipitated silicas | 10 |
| Polyamide modified castor oil thickener | 3 |
| Methyl tributanoximo silane | 8 |
| Vinyl tributyl ketoximyl silane | 2 |
| Dibutyl tin laurate | 0.2 |
The silicone rubber sealant performance data table of the present embodiment of table 20
Embodiment 11
It is 20000mm by kinematic viscosity2/ s and 80000mm2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane is according to 1:1
Weight ratio, silicon powder, di-iron trioxide etc. are stirred in being added to planet machine, while heated between 110 DEG C, in -0.096MPa
Lower vacuum dehydration 2h, adds thickener stirring 45min afterwards, is cooled to 65 DEG C, add white oil and methyl tributanoximo silane,
Vinyl tributyl ketoximyl silane, four butanone oximino silanes, dibutyl tin laurate is stirring evenly and then adding under vacuum condition,
Stir discharging under vacuum.
To obtaining to base material, adhesion type silicone rubber sealant does not carry out performance measurement, the results are shown in Table 22.
The present embodiment silicone rubber sealant constituent content tables of data of table 21
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 1000 mesh silicon powders | 50 |
| 1000 mesh di-iron trioxides | 50 |
| White oil | 15 |
| Specific surface area 150m2/ g fume colloidal silicas | 15 |
| Polyamide modified castor oil thickener | 3 |
| Methyl tributanoximo silane | 6 |
| Vinyl tributyl ketoximyl silane | 2 |
| Four butanone oximino silanes | 2 |
| Dibutyl tin laurate | 0.1 |
The silicone rubber sealant performance data table of the present embodiment of table 22
Comparative example：
It is 20000mm by kinematic viscosity2The α of/s, alpha, omega-dihydroxy polydimethyl siloxane, 350mm2The dimethyl-silicon of/s
Oil, silicon powder, calcium carbonate etc. are stirred in being added to planet machine, while heated to 110 DEG C, the vacuum dehydration 2h under -0.096MPa,
60 DEG C are cooled to, methyl tributanoximo silane, vinyl tributyl ketoximyl silane and four butanone oximino silanes, vacuum bar are added
Dibutyl tin laurate is stirring evenly and then adding under part, stir discharging under vacuum.
Sealant to obtaining carries out performance measurement, the results are shown in Table 24.
The comparative example silicone rubber sealant constituent content tables of data of table 23
| Component | Consumption/number |
| α, alpha, omega-dihydroxy polydimethyl siloxane | 100 |
| 1000 mesh silicon powders | 40 |
| Fatty acid treatment nano-calcium carbonate | 110 |
| Dimethicone | 35 |
| Methyl tributanoximo silane | 6 |
| Vinyl tributyl ketoximyl silane | 2 |
| Four butanone oximino silanes | 2 |
| Dibutyl tin laurate | 0.1 |
The silicone rubber sealant performance data table of the present embodiment of table 24
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of to base material not adhesion type silicone rubber sealant, it is characterised in that prepared by the raw material including following weight portion and
Into：
2. silicone rubber sealant according to claim 1, it is characterised in that the α, alpha, omega-dihydroxy polydimethyl silica
The kinematic viscosity of alkane is 1000~80000mm2/s。
3. silicone rubber sealant according to claim 1, it is characterised in that the mesh number of the silicon powder is not less than 150 mesh；
The mesh number of the cerium oxide is not less than 150 mesh；The di-iron trioxide mesh number is not less than 150 mesh；The titanium dioxide is gas phase
Method Nano titanium dioxide；The mesh number of the carbon black is not less than 150 mesh.
4. silicone rubber sealant according to claim 1, it is characterised in that the white carbon is precipitated silica or gas
Phase method white carbon.
5. silicone rubber sealant according to claim 1, it is characterised in that the thickener is selected from polyamide-based thickening
Agent.
6. silicone rubber sealant according to claim 1, it is characterised in that the crosslinking agent is selected from methyl tri acetylacetonate oximido
Silane, methyl tributanoximo silane, phenyl tributanoximo silane, vinyl tributyl ketoximyl silane and four butanone oximido silicon
One or more in alkane etc..
7. silicone rubber sealant according to claim 1, it is characterised in that the catalyst is selected from organotin catalysts.
8. a kind of preparation method to base material not adhesion type silicone rubber sealant as described in claim 1~7 any one, its
It is characterised by, comprises the following steps：
A) by α, alpha, omega-dihydroxy polydimethyl siloxane, white carbon, carbon black, silicon powder, di-iron trioxide, titanium dioxide, oxidation
After cerium and mill base carry out Hybrid Heating stirring, vacuum dehydration is carried out, add thickener and mixed；
B white oil and crosslinking agent) are added, is stirred under vacuum；
C catalyst) is added, is stirred under vacuum, obtained to base material not adhesion type silicone rubber sealant.
9. preparation method according to claim 8, it is characterised in that step A) in, the temperature 100 of the heating stirring~
150 DEG C, the pressure of vacuum dehydration is -0.09~-0.1MPa, and the time of vacuum dehydration is 2~4 hours.
10. preparation method according to claim 8, it is characterised in that step A) in, add thickener to be mixed
Time >=30min, stirring terminate after be cooled to≤70 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129538.8A CN106753200B (en) | 2016-12-09 | 2016-12-09 | Non-adhesive silicone rubber sealant for base material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129538.8A CN106753200B (en) | 2016-12-09 | 2016-12-09 | Non-adhesive silicone rubber sealant for base material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106753200A true CN106753200A (en) | 2017-05-31 |
| CN106753200B CN106753200B (en) | 2020-11-17 |
Family
ID=58875739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611129538.8A Active CN106753200B (en) | 2016-12-09 | 2016-12-09 | Non-adhesive silicone rubber sealant for base material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106753200B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795194A (en) * | 2020-12-31 | 2021-05-14 | 湖北回天新材料股份有限公司 | Gear oil resistant single-component room temperature vulcanized silicone rubber and preparation method thereof |
| CN114058291A (en) * | 2021-11-17 | 2022-02-18 | 湖北兴发凌志新材料有限公司 | Silver flashing color paste for neutral transparent silicone sealant and preparation method thereof |
| CN116218363A (en) * | 2023-03-31 | 2023-06-06 | 无锡兴华衡辉科技有限公司 | Protective slurry and preparation method thereof, protective sleeve containing protective slurry and preparation method thereof and application of protective sleeve in laser welding of stainless steel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6413354B1 (en) * | 1998-06-17 | 2002-07-02 | Loctite Corporation | Oil resistant silicones |
| CN101724269B (en) * | 2008-10-22 | 2012-01-11 | 广东恒大新材料科技有限公司 | Easy-stripping type room temperature vulcanizing silicone rubber and preparation method thereof |
| CN102321450A (en) * | 2011-08-23 | 2012-01-18 | 杭州之江有机硅化工有限公司 | Solar energy photovoltaic assembly organosilicon sealant material and preparation method thereof |
| CN101333427B (en) * | 2007-06-30 | 2012-10-10 | 湖北回天胶业股份有限公司 | Adhesive monocomponent organosilicon sealant |
| CN103483831A (en) * | 2013-09-09 | 2014-01-01 | 无为县大江橡塑制品有限公司 | Solvent resistance type rubber formula |
| CN103497515A (en) * | 2013-09-09 | 2014-01-08 | 无为县大江橡塑制品有限公司 | Formula of flame-retardant rubber sheath |
| CN105131579A (en) * | 2015-09-21 | 2015-12-09 | 安徽徽宁电器仪表集团有限公司 | Oil-proof fireproof soft cable material for oil-immersed pump and preparation method of oil-proof fireproof soft cable material |
| 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 |
-
2016
- 2016-12-09 CN CN201611129538.8A patent/CN106753200B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6413354B1 (en) * | 1998-06-17 | 2002-07-02 | Loctite Corporation | Oil resistant silicones |
| CN101333427B (en) * | 2007-06-30 | 2012-10-10 | 湖北回天胶业股份有限公司 | Adhesive monocomponent organosilicon sealant |
| CN101724269B (en) * | 2008-10-22 | 2012-01-11 | 广东恒大新材料科技有限公司 | Easy-stripping type room temperature vulcanizing silicone rubber and preparation method thereof |
| CN102321450A (en) * | 2011-08-23 | 2012-01-18 | 杭州之江有机硅化工有限公司 | Solar energy photovoltaic assembly organosilicon sealant material and preparation method thereof |
| CN103483831A (en) * | 2013-09-09 | 2014-01-01 | 无为县大江橡塑制品有限公司 | Solvent resistance type rubber formula |
| CN103497515A (en) * | 2013-09-09 | 2014-01-08 | 无为县大江橡塑制品有限公司 | Formula of flame-retardant rubber sheath |
| CN105131579A (en) * | 2015-09-21 | 2015-12-09 | 安徽徽宁电器仪表集团有限公司 | Oil-proof fireproof soft cable material for oil-immersed pump and preparation method of oil-proof fireproof soft cable material |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 刘嘉 等: "《航空橡胶与密封材料》", 30 November 2011, 国防工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795194A (en) * | 2020-12-31 | 2021-05-14 | 湖北回天新材料股份有限公司 | Gear oil resistant single-component room temperature vulcanized silicone rubber and preparation method thereof |
| CN112795194B (en) * | 2020-12-31 | 2022-09-06 | 湖北回天新材料股份有限公司 | Gear oil resistant single-component room temperature vulcanized silicone rubber and preparation method thereof |
| CN114058291A (en) * | 2021-11-17 | 2022-02-18 | 湖北兴发凌志新材料有限公司 | Silver flashing color paste for neutral transparent silicone sealant and preparation method thereof |
| CN116218363A (en) * | 2023-03-31 | 2023-06-06 | 无锡兴华衡辉科技有限公司 | Protective slurry and preparation method thereof, protective sleeve containing protective slurry and preparation method thereof and application of protective sleeve in laser welding of stainless steel |
| CN116218363B (en) * | 2023-03-31 | 2024-03-08 | 无锡兴华衡辉科技有限公司 | Protective slurry and preparation method thereof, protective sleeve containing protective slurry and preparation method thereof and application of protective sleeve in laser welding of stainless steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106753200B (en) | 2020-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102093837B (en) | One-component high temperature-resistant gasket-free sealant and preparation method thereof | |
| CN112680180B (en) | Addition type silicone rubber with high bonding strength and preparation method thereof | |
| CN101638518B (en) | Room-temperature vulcanized silicone rubber resisting acid-gas corrosion and high temperature and preparation method thereof | |
| CN106590519B (en) | Condensed type bi-component silicone sealant and preparation method | |
| CN106753200A (en) | It is a kind of to base material not adhesion type silicone rubber sealant and preparation method thereof | |
| CN105907360B (en) | A kind of silicone rubber sealant and preparation method thereof | |
| CN103396759B (en) | A kind of desulfuration chimney inner wall anti-corrosive organic silicon adhesive and method for formulating thereof | |
| CN107189753A (en) | A kind of de-oxime type oil resistant fluorine silicone sealant and preparation method thereof | |
| CN103834353A (en) | High-strength single-component room temperature vulcanized silicone rubber | |
| CN101724377A (en) | High-strength condensed type double-component organosilicon acid-resisting sealant and preparation method thereof | |
| CN107163908A (en) | One kind is used for automobile lamp and assembles sealed two-component silicone rubber sealant and preparation method thereof | |
| CN103146339A (en) | Dealcoholization type cured organosilicone sealant and preparation method thereof | |
| CN114790335B (en) | Heat-resistant addition type liquid silicone rubber composition | |
| CN105238340A (en) | Mono-component transparent alcohol-type organic silicon sealing gum and preparation method of same | |
| CN110982480A (en) | Single-component flame-retardant high-temperature-resistant silicone sealant and preparation method thereof | |
| CN109880580A (en) | A kind of resistance to alcohol, acid type room temperature vulcanized organosilicon sealant and preparation method thereof | |
| CN105385408B (en) | Antifatigue, uvioresistant single-component dealcoholization-type silicone structure sealant and preparation method | |
| CN106633906A (en) | High-temperature-resistant deoximation single-ingredient room temperature vulcanized silicon rubber and preparation method thereof | |
| CN106497503A (en) | A kind of neutral alcohol type transparent silicone fluid sealant and preparation method thereof | |
| CN106833505A (en) | A kind of resistant to elevated temperatures single-component room temperature vulcanized silicone sealant and preparation method thereof | |
| CN112724924B (en) | Silicone structural adhesive for hollow glass and preparation method thereof | |
| CN116948587B (en) | Preparation and application of bi-component silane modified polyether sealant | |
| CN109852338A (en) | Fluorosilicone rubber composition, preparation method and the sealant and coating prepared by the composition | |
| CN113684003A (en) | Bi-component room temperature vulcanized silicone rubber composition | |
| CN103571196A (en) | Organopolysiloxane composition with room temperature solidification and automobile oil seal using the composition |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201030 Address after: 311203 Huang Jiahe, Shushan street, Xiaoshan District, Zhejiang, Hangzhou Applicant after: HANGZHOU ZHIJIANG SILICONE CHEMICALS Co.,Ltd. Applicant after: HANGZHOU ZHIJIANG SILICONE Co.,Ltd. Address before: 311203 Huang Jiahe, Shushan street, Xiaoshan District, Zhejiang, Hangzhou Applicant before: HANGZHOU ZHIJIANG SILICONE CHEMICALS Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |