Vinyl silane-172

Product name：vinyl silane

component：Vinyl tris (2-methoxyethoxy) silane

characteristic：

1. Vinyl reactivity
2. Improve the properties of composites
3. Improve the compatibility between inorganic fillers and polymers

Corresponding foreign brands:

Maitu Momentive: A-172
Dow Corning: z-6172
Shinyue, Japan: kbc-1003

Typical physical data

The following data is for reference only and should not be used directly for specification development

The following data is for reference only and should not be used directly for specification development

The detection method is the enterprise detection method

application：

1. Vinyl silane-172 is vinyl methoxyethoxysilane, and vinyl can participate in double bond addition reaction. At the same time, special alkoxy methoxy or ethoxysilane, which is more common, can show better hydrolytic stability during processing.
2. This product is widely used in the current halogen-free flame retardant cable material industry. It can significantly improve the dispersion effect of fillers, improve the flame retardancy of cable materials, and improve the oxygen index.
3. This product can be applied to the surface modification of inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide, which can improve the dispersion of fillers, increase the compatibility with polymerization, and improve the flame retardant effect. l
4. This product is used in the modified resin industry, which can introduce siloxane bonds and alkoxy groups into polymers through copolymerization or grafting. Silicon oxygen bond itself has good comprehensive properties, which can improve the toughness, weather resistance, water resistance and other properties of the polymer. l
5. This product can improve the adhesion of printing ink, glue and coating on glass, ceramic or metal surfaces. It is used as an additive in label adhesive to improve the adhesion of labels on the substrate.
6. This product improves the adhesion of silicone rubber on the surface of polyester or glass. This adhesion is particularly important in high temperature applications (such as transport tapes) and hot gas vent pipes (such as exhaust rubber pipes).

usage method：

When this product is used as an additive, the addition amount of silane is generally 0.5-3.0% of the formula amount, and the most appropriate amount needs to be determined through experiments. This product is especially suitable for applications where the environmental humidity is high.
Like other silanes, this product can be configured into an aqueous solution with a concentration of 0.1-1.0%. When preparing this aqueous solution, just add this product directly to deionized water with stirring, and continue stirring until the solution becomes clear and transparent. The surface of inorganic materials can be treated with silane aqueous solution by spraying, coating, impregnation, etc. Silane can also be directly mixed with filler under high shear without adding any solvent.
After the surface of the filler is treated with silane, it can be dried by natural air or for a short time at a temperature of 105 to 120 ℃ to complete the condensation of silanol groups on the surface and remove methanol and water. The best addition amount, use and drying conditions (such as time and temperature) for each application need to be obtained through experiments. This product will produce a small amount of low molecular alcohol in the reaction, so proper ventilation system should be considered for treatment in the production process.

Solubility：

This product is easy to hydrolyze and soluble in isopropanol, acetone, toluene, xylene, mineral oil and other organic solvents. Generally speaking, silane can be dissolved in many common organic solvents, but when using a specific solvent, the solubility and stability of silane in the solvent should be verified.

Volatile and effective components：

For silane, most methods to detect volatile and effective components by measuring the change of substance quality at the set temperature, such as gb/t 1725-2007, astm#d2369, etc., are not suitable
Used for the determination of silane. Because alkoxysilane has hydrolysis tendency in the detection process, some silane with high reaction activity is also hydrolyzed, accompanied by more other reaction tendencies. Once hydrolysis occurs, a large number of lower alcohols will be produced, which will affect the quality determination of low boiling point substances, making the test results seriously deviate from the actual situation. At present, gas or liquid chromatography is a relatively reliable method for the determination of volatile and effective organic silicon.

chemical property:

Vinyl reactivity

151,171,172,173,1706etc. are typical vinyl silanes, which have vinyl reactivity in the general sense. Vinyl can produce double bond addition reaction in the presence of peroxide or free radical initiator, accompanied by the generation of heat.

Alkoxy reactivity

Silane containing alkoxy group has typical chemical properties of alkoxy group. Alkoxysilane is prone to hydrolysis in aqueous environment to produce silanol structure.
Theoretically, the structure of silanol is prone to self condensation polymerization and has poor stability. However, silanol diluted to a certain concentration can have appropriate stability in polar solvents such as water or alcohol, and its stability is better in weak acidic systems.
The silanol structure can condense with hydroxyl groups on the surface of the substrate, and the remaining silanol bonds can condense with silanol bonds on other silane molecules or form hydrogen bonds. Through the combination of covalent bond and hydrogen bond, silane is attached to the surface of the substrate, thus playing the role of surface modification of the substrate. At the same time, other organic functional groups on silane molecules can also maintain the chemical activity of subsequent reactions.
This product is packed in 5L, 20L plastic barrels and 200L closed iron barrels. After this product is opened, dry nitrogen or other dry inert gases should be introduced into the container containing the remaining products to prevent gelation due to the intrusion of moisture in the air.
Store in the original unopened container under atmospheric pressure below 20 ℃
The shelf life of the product is 12 months from the date of production.

Service and sales matters:

The manual is only a brief introduction to the application of the product. Our application technology service department can provide application consultation and after-sales service. Customers should make a small test before using it.
The only guarantee of Changsha Zhongyi Chemical Co., Ltd. is that the products meet the sales specifications at the time of delivery. If Changsha Zhongyi Chemical Co., Ltd. violates the warranty, the only compensation you can get is limited to returning the purchase price or replacing any products that do not meet the warranty.
Changsha Zhongyi Chemical Co., Ltd. specially declares that it does not make any other express or implied warranty of applicability or merchantability for specific purposes.