Epoxy silane - 560

Product Name:epoxy silane

component：γ- Glycidyl ether oxypropyl trimethoxysilane

characteristic：

1. Epoxy reactivity
2. It shows good storage stability in the formula system
3. Excellent compatibility with various polymers and wide versatility
4. Improve the mechanical properties of composites
5. Improve the compatibility between inorganic fillers and polymers

Corresponding foreign brands

Maitu Momentive: a-187
Dow Corning: z-6040
Shinyue, Japan: kbm-403

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. This product is used in the treatment of glass fiber, which can improve the mechanical strength of glass fiber reinforced composites, and has a high strength retention rate in the wet state.
2. This product is especially suitable for the surface treatment of fillers in epoxy matrix composites, such as epoxy resin type integrated electronic materials and printed circuit boards, which can improve the dispersion of fillers in polymers and improve the mechanical and electrical properties of composites.
3. This product can improve the adhesion of various adhesives, such as two-component epoxy adhesive, acrylic adhesive, polyurethane adhesive and epoxy paint, with glass, metal and other substrates.
4. This product is used in the coating industry, which can significantly improve the adhesion of the paint film to hydroxyl containing substrates on the surfaces of glass, metal, etc., and its water and dirt resistance

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 the aqueous solution, it is recommended to use organic acids such as acetic acid to adjust the pH of pure water to 3.0-4.5, and then add silane to the acidified water with stirring, and continue stirring until the hydrolysis reaction is complete, forming a clear, transparent and homogeneous solution. Since the prepared silane aqueous solution is unstable and will gradually form silane oligomers, it is recommended that the prepared silane aqueous solution be used within 24 hours. If turbid precipitation occurs during storage, the performance of silane aqueous solution will be affected and cannot be used.
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:

Epoxy reactivity

560,561,1770,1771,7180etc. are typical epoxy silane, which has epoxy reaction activity in the general sense. The epoxy bond will open in the presence of acid, alkali, amine, chloride ion, etc., so before use, avoid product pollution.

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.

Packaging and storage：

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.
The shelf life of the product is 12 months from the date of production when it is stored in the original unopened container at atmospheric pressure below 20 ℃.

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.