3-Ureidopropyltrimethoxysilane, with the CAS number 23843-64-3, is a versatile organosilane compound known for its various industrial applications. It is characterized by its molecular formula, C7H18N2O4Si, and has a molecular weight of approximately 222.31 g/mol.
Physical Properties
Appearance: It is typically a colorless to slightly pale yellow liquid.
Chemical Structure: The compound features a trimethoxysilyl group attached to a ureido group, which contributes to its reactivity and functionality in various applications.
Applications
3-Ureidopropyltrimethoxysilane is primarily used as:
Adhesion Promoter: It enhances the bonding strength between substrates, particularly those with hydroxyl groups, such as glass, metal oxides, and ceramics. This property makes it valuable in coatings, adhesives, and sealants.
Crosslinking Agent: In polymer and composite formulations, it facilitates the formation of covalent bonds between polymer chains and inorganic surfaces, improving mechanical properties, adhesion, and durability of composite materials.
Chemical Synthesis: It serves as a coupling agent in various chemical processes, enhancing the compatibility between organic and inorganic materials.
Market Availability
3-Ureidopropyltrimethoxysilane is available in different grades and can be sourced from various suppliers. It is often marketed under several synonyms, including 3-trimethoxysilylpropylurea and γ-Ureidopropyltrimethoxysilane.
In summary, 3-Ureidopropyltrimethoxysilane is a significant compound in the field of materials science, particularly for its role in improving adhesion and mechanical properties in various industrial applications.
| Common Name | 1-[3-(Trimethoxysilyl)propyl]urea | ||
|---|---|---|---|
| CAS Number | 23843-64-3 | Molecular Weight | 222.314 |
| Density | 1.1±0.1 g/cm3 | Boiling Point | 251.2±32.0 °C at 760 mmHg |
| Molecular Formula | C7H18N2O4Si | Melting Point | <-25ºC |
| MSDS | ChineseUSA | Flash Point | 105.7±25.1 °C |
| Symbol |   GHS05, GHS07 |
Signal Word | Danger |
As a metal surface rust inhibitor, it has special effects. When used to treat technical surfaces such as gold, silver, and copper, it can improve their corrosion resistance, oxidation resistance, and enhance their adhesion performance to polymer materials.
- This product is a novel silane coupling agent with reactivity. Urea groups can provide reactivity with various resins, while methoxy or ethoxy groups are prone to hydrolysis and crosslinking reactions.
- The product can significantly improve the adhesive strength and sand strength of cold core box casting resin, reduce resin dosage and gas generation while maintaining sand strength, improve casting quality, and reduce scrap rate.
- This product can be widely used as a reinforcing agent and crosslinking promoter in composite materials, paints, coatings, inks, adhesives, and sealing materials, to provide adhesive strength and improve the water resistance of products.
- Used in the synthesis of resins, it can effectively improve the moisture and temperature resistance of the synthesized resin.
