CN108997758A - A kind of room curing silicon rubber and preparation method thereof - Google Patents
A kind of room curing silicon rubber and preparation method thereof Download PDFInfo
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- CN108997758A CN108997758A CN201810548130.7A CN201810548130A CN108997758A CN 108997758 A CN108997758 A CN 108997758A CN 201810548130 A CN201810548130 A CN 201810548130A CN 108997758 A CN108997758 A CN 108997758A
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- room temperature
- silicone rubber
- temperature cure
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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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
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of one component room temperature cure silicone rubber and preparation method thereof, which includes 100 parts of organopolysiloxane, 50 ~ 200 parts of calcium carbonate, 0 ~ 50 part of silica 1,5 ~ 30 parts of silane compound, 0.2 ~ 2 part of organo-tin compound, 0.1-10 parts of iron oxide compositions；It is fast that single part of room curing silicon rubber surface drying speed is made, elastomer mechanical strength with higher and caking property after solidification.
Description
Technical field
The present invention relates to technical field of polymer materials, and in particular to a kind of room curing silicon rubber and preparation method thereof.
Background technique
Silicon rubber refers to that main chain is alternately made of silicon and oxygen atom, and the rubber there are two organic group is usually connected on silicon atom
Glue.Since silicon rubber has excellent ageing-resistant performance, electrical insulating property and preferable mechanical strength, it is widely used in various rows
Industry is especially used as bonding glass and frame etc. in building trade and respectively bonds in kind of construction material, but traditional silicon rubber for building
It is slow with surface drying speed, the disadvantages of mechanical strength is small, and cohesive force is small.
Summary of the invention
In order to solve the problems in the existing technology, the present invention provides a kind of one component room temperature cure silicone rubber and its
Preparation method.
Technical proposal that the invention solves the above-mentioned problems are as follows: a kind of one component room temperature cure silicone rubber and preparation method thereof,
By weight include following component:
100 parts of organopolysiloxane polymers；
50 ~ 200 parts of calcium carbonate；
10 ~ 50 parts of silica；
5 ~ 30 silane compounds；
0.2 ~ 2 part of organo-tin compound；
Preferably, it be 1000 ~ 200000,25 DEG C of viscosity is the two of 1000 ~ 100000cps that the organopolysiloxane, which is molecular weight,
End is the polysiloxanes of capped silanol groups；
Preferably, the calcium carbonate is the calcium carbonate of stearic acid processing；
Preferably, it is 200m2/g, the gas phase dioxy that surface hexamethyldisilazane is handled that the silica, which is specific surface area,
SiClx；
Preferably, the silane compound is methyl tributanoximo silane and vinyl tributyl ketoximyl silane mixture (matter
Amount is than being 1:1), additive amount is 100 parts of polysiloxanes than 5 ~ 30 parts；
Preferably, the organo-tin compound is dibutyl tin dilaurate.
Preferably, the iron oxide is α-Fe2O3。
Its preparation process the following steps are included:
It is the two of 1000 ~ 100000cps that add molecular weight under anhydrous condition in a kettle, which be 1000 ~ 200000,25 DEG C of viscosity,
End is 100 parts of polysiloxanes of capped silanol groups, 50 ~ 200 parts of calcium carbonate, specific surface area 200m2/g of stearic acid processing, table
Handle 0 ~ 50 part of silica 1 of face hexamethyldisilazane, methyl tributanoximo silane and vinyl tributanoximo
5 ~ 30 parts of silane mixture (mass ratio 1:1), 0.2 ~ 2 part of dibutyl tin dilaurate, α-Fe2O3 0.3 part after mixing
It is smeared on mold at a thickness of 3mm and 6mm, is placed 7 days under the conditions of 25 DEG C of relative humidity are 50 constant temperature and humidity, it is final to make
Elastomer-forming.
The present invention have the utility model has the advantages that
Manufactured silicon rubber has faster surface drying speed, biggish mechanical strength and caking property through the invention.
Specific embodiment
Embodiment 1
It is the poly- of capped silanol groups that add molecular weight under anhydrous condition in a kettle, which be the both ends that 25 DEG C of viscosity are 8000cps,
100 parts of siloxanes, 90 parts of calcium carbonate of stearic acid processing, specific surface area 200m2/g, surface is handled with hexamethyldisilazane
20 parts of silica, methyl tributanoximo silane and 15 parts of vinyl tributyl ketoximyl silane mixture (mass ratio 1:1),
0.5 part of dibutyl tin dilaurate, α-Fe2O3 0.3 part is smeared on mold at a thickness of 3mm and 6mm, 25 after mixing
Is placed 7 days under the conditions of the constant temperature and humidity that DEG C relative humidity is 50, is finally made elastomer, and test surface drying time, tearing stretching
Intensity, hardness, ultimate tensile strength.
Embodiment 2
Add the polysiloxanes 100 that the both ends that 25 DEG C of viscosity are 20000cps are capped silanol groups under anhydrous condition in a kettle
Part, 130 parts of calcium carbonate, specific surface area 200m2/g of stearic acid processing, the silica that surface is handled with hexamethyldisilazane
20 parts, methyl tributanoximo silane and 15 parts of vinyl tributyl ketoximyl silane mixture (mass ratio 1:1), tin dilaurate
0.5 part of dibutyl tin, α-Fe2O3 0.3 part is smeared on mold after mixing at a thickness of 3mm and 6mm, relatively wet at 25 DEG C
Degree is finally made elastomer, and test surface drying time, tears tensile strength, firmly to place 7 days under the conditions of 50 constant temperature and humidity
Degree, ultimate tensile strength.
Comparative example 1
Add the polysiloxanes 100 that the both ends that 25 DEG C of viscosity are 50000cps are capped silanol groups under anhydrous condition in a kettle
Part, 130 parts of calcium carbonate, specific surface area 200m2/g of stearic acid processing, the silica that surface is handled with hexamethyldisilazane
15 parts, methyl tributanoximo silane and 5 parts of vinyl tributyl ketoximyl silane mixture (mass ratio 1:1), tin dilaurate
0.5 part of dibutyl tin, α-Fe2O3 0.3 part is smeared on mold after mixing at a thickness of 3mm and 6mm, relatively wet at 25 DEG C
Degree is finally made elastomer, and test surface drying time, tears tensile strength, firmly to place 7 days under the conditions of 50 constant temperature and humidity
Degree, ultimate tensile strength.
Test result is as follows:
| Project | Embodiment 1 | Embodiment 2 | Comparative example 1 |
| Tear tensile strength kgf/cm2 | 15 | 14 | 11 |
| Surface drying time min | 10 | 9 | 13 |
| Ultimate tensile strength % | 820 | 810 | 700 |
| Hardness A | 36 | 34 | 29 |
Above-mentioned test method is as follows:
1. tearing tensile strength test method is ASTM D412
2. hardness measuring method is ASTM D2240
3. surface drying time test method is ASTM C679
The above described is only a preferred embodiment of the present invention, be not that the invention has other forms of limitations, it is any ripe
Know the equivalent reality that professional and technical personnel was changed or be modified as equivalent variations possibly also with the technology contents of the disclosure above
Example is applied applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention to
Any simple modification, equivalent variations and remodeling, still fall within the protection scope of technical solution of the present invention made by upper embodiment.
Claims (8)
1. a kind of one component room temperature cure silicone rubber, which is characterized in that the one component room temperature cure silicone rubber include below at
Point:
100 parts of organopolysiloxane polymers；
50 ~ 200 parts of calcium carbonate；
10 ~ 50 parts of silica；
5 ~ 30 parts of silane compounds；
0.2 ~ 2 part of organo-tin compound；
0.1-10 parts of iron oxide.
2. a kind of one component room temperature cure silicone rubber, which is characterized in that preparation process includes:
Add 100 parts of organopolysiloxane polymer under anhydrous condition in a kettle, 50 ~ 200 parts of calcium carbonate, silica 10
~ 50 parts, 5 ~ 30 parts of silane compound, 0.2 ~ 2 part of organo-tin compound, 0.1-10 parts of iron oxide apply on mold after mixing
It smears into a thickness of 3mm and 6mm, is placed 7 days under the conditions of 25 DEG C of relative humidity are 50 constant temperature and humidity, be finally made elastomer.
3. one component room temperature cure silicone rubber according to claim 1, it is characterised in that: the capped silanol groups have
It is 1000 ~ 200000,25 DEG C of viscosity is 1000 ~ 100000cps that machine polysiloxanes, which is molecular weight, and structural formula is
Structural formula 1
Wherein R indicates methyl or phenyl, n=100 ~ 10000.
4. one component room temperature cure silicone rubber according to claim 1, it is characterised in that: the calcium carbonate is at stearic acid
The calcium carbonate of reason.
5. one component room temperature cure silicone rubber according to claim 1, it is characterised in that: the silica is specific surface
Product is 200m2/g, the fumed silica that surface is handled with hexamethyldisilazane.
6. one component room temperature cure silicone rubber according to claim 1, it is characterised in that: the silane compound is structure
Formula is 2,3 compound or its one kind；
Structural formula 2
Wherein R indicates that carbon number is 1 ~ 8 alkyl, and m indicates that 0 or 1, R1, R2 indicate that carbon number is 2 ~ 30 alkyl；
Structural formula 3
R3 indicates that carbon number is 1 ~ 6 vinyl, acrylic or epoxy group, and R4, R5 indicate that carbon number is 1 ~ 8 alkyl.
7. one component room temperature cure silicone rubber according to claim 1, it is characterised in that: the organo-tin compound is two
Dibutyl tin laurate, dibutyltin diacetate, tin octoate class organo-tin compound are one or more of.
8. one component room temperature cure silicone rubber according to claim 1, it is characterised in that: the iron oxide is α-Fe2O3,
γ-Fe2O3One of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548130.7A CN108997758A (en) | 2018-05-31 | 2018-05-31 | A kind of room curing silicon rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548130.7A CN108997758A (en) | 2018-05-31 | 2018-05-31 | A kind of room curing silicon rubber and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108997758A true CN108997758A (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810548130.7A Pending CN108997758A (en) | 2018-05-31 | 2018-05-31 | A kind of room curing silicon rubber and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN108997758A (en) |
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2018
- 2018-05-31 CN CN201810548130.7A patent/CN108997758A/en active Pending
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