Description
Molecular Formula: C6H16O3Si
Molecular Weight: 164.27
Structural Formula:
Specification:
Items
Specifications
Boiling Point
142°C(lit.)
Density
0.932g/mL at 25°C(lit.)
Vapor Pressure
0.15psi(20°C)
Refractive Index
n20/D1.391(lit.)
Flash Point
97°F
Specific Gravity
0.932
Water Solubility
Reacts with water
Hydrolysis Sensitivity
reacts slowly with moisture/water
Sensitivity
Moisture Sensitive
Stability
Stable, but reacts with moisture. Flammable. Incompatible with strong oxidizing agents, acids, alcohols, bases and water.
Items | Specifications |
Boiling Point | 142°C(lit.) |
Density | 0.932g/mL at 25°C(lit.) |
Vapor Pressure | 0.15psi(20°C) |
Refractive Index | n20/D1.391(lit.) |
Flash Point | 97°F |
Specific Gravity | 0.932 |
Water Solubility | Reacts with water |
Hydrolysis Sensitivity | reacts slowly with moisture/water |
Sensitivity | Moisture Sensitive |
Stability | Stable, but reacts with moisture. Flammable. Incompatible with strong oxidizing agents, acids, alcohols, bases and water. |
Function：
1. Coupling function, effectively improve the compatibility between inorganic and organic materials.
2. Hydrophobic function, after hydrolysis and condensation reaction, propyltrimethoxysilane can form a layer of silicone film with low surface energy on the surface of the material.
3. Its trimethoxysilane structure gives it high reactivity. Under appropriate conditions, it can react with a variety of compounds containing active hydrogen.
Application：
1. Propyltrimethoxysilane is widely used as a coupling agent in glass fiber reinforced thermoset and thermoplastic resins.
2. In mineral-filled plastics such as calcium carbonate and talc, it can improve the compatibility between the mineral filler and the plastic matrix.
3. It is used in the protective treatment of natural stone (such as marble and granite). It can also prevent stone from alkalization and discoloration due to long-term moisture erosion.
4. It can be used as waterproofing agent and durability enhancer for concrete.
5. In the manufacturing process of electronic circuit boards, propyltrimethoxysilane can be used in the moisture-proof treatment of circuit boards.
6. As an additive for electronic encapsulation materials, it can improve the interfacial bonding performance between encapsulation materials and chips, substrates and other components, and protect electronic components from the influence of the external environment.
7. Adding propyltrimethoxysilane to coatings can improve the adhesion, water resistance and weather resistance of coatings.
8. It is used to modify the adhesive and enhance the bonding performance of the adhesive to different materials.
