Heat-vulcanized silicone rubber base coat binder and preparation method thereof
A heat-vulcanized silicone rubber and adhesive technology, which is applied in the direction of adhesives, non-polymer organic compound adhesives, non-polymer adhesive additives, etc., can solve the problem of affecting construction personnel and the environment, strong smell of benzene solvents, Hazards and other issues, to achieve stability and retrograde improvement, reduce bonding failure, and simplify the effect of the solvent system
Active Publication Date: 2021-10-22
CHINA BLUESTAR CHENGRAND CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Because the invention uses benzene solvent and polyisocyanate as components, both of them are harmful substances, and the benzene solvent has a strong smell, which has the disadvantage of affecting construction workers and the environment
Method used
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Examples
Experimental program
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Embodiment 1
[0024] This embodiment relates to a thermally vulcanized silicone rubber primer adhesive with high viscosity, good stability, low toxicity and high efficiency.
[0025] Configure the production process:
[0026] First, take 14.6g of tetrabutyl titanate and 5.5g of ethyl acetoacetate in a round-bottomed flask, mechanically stir at 80°C for 0.5h, place it at room temperature, add 80.0g of vinyltriethoxysilane, and mix well. That is, the thermally vulcanized silicone rubber primer is prepared.
Embodiment 2～5 and comparative example 1～2
[0028] Refer to the production process described in Example 1, carry out Examples 2-5 and Comparative Examples 1-2, the specific parameters are shown in Table 1 below, and prepare the primer.
[0029] Table 1
[0030]
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Abstract
The invention discloses a heat-vulcanized silicone rubber base coat binder and a preparation method thereof. The preparation method comprises the following steps: mixing 11-27 parts of titanate and 5.5-31 parts of ethyl acetoacetate at the temperature of 50-110 DEG C for 0.5-3 hours, adding 50-80 parts of vinyl silane at normal temperature, and uniformly mixing the components so as to obtain the heat-vulcanized silicone rubber base coat binder. The primer is mainly applied to bonding of heat-vulcanized silicone rubber or high-temperature silicone rubber and heterogeneous parts, and has good bonding performance; meanwhile, the highest bonding strength can reach 5.00 MPa, the adhesive can be stored in air for 14 h for a long time, and the adhesive is also a binding agent which is simple in component, good in stability and low in toxicity.
Description
technical field [0001] The invention relates to a thermally vulcanized silicone rubber primer and a preparation method thereof, in particular to a thermally vulcanized silicone rubber primer with low toxicity and good stability and a preparation method thereof, belonging to the technical field of silicone rubber. Background technique [0002] Silicone rubber is a special rubber material with silicon-oxygen bonds as the main chain of molecular structure, and silicon elements are linked to other chemical structures. It is generally formed by ring-opening polymerization of cyclic polysiloxane. Due to its unique chemical structure, silicone rubber has many special properties, such as weather resistance, physical and mechanical properties, and excellent high and low temperature properties. In the application process, rubber materials are usually used as parts of products, and together with other heterogeneous parts to form products. Due to the low surface free energy of silicone...
Claims
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IPC IPC(8): C09J183/07C09J11/06
CPCC09J4/00C09J183/04C09J11/06C08G77/20C08K5/10
Inventor 于向天李龙锐周远建
Owner CHINA BLUESTAR CHENGRAND CO LTD
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