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3-Acryloxypropyl Trimethoxysilane: Properties, Applications, and Innovations

Silanes are versatile organic compounds that have been used in various industries for decades. Among the many types of silanes, 3-acryloxypropyl trimethoxysilane stands out as a highly functional and reactive silane that has found widespread use in coatings, adhesives, and composites. In this article, we will delve into the properties, applications, and innovations of 3-acryloxypropyl trimethoxysilane.

Properties

3-acryloxypropyl trimethoxysilane, also known as 3-(trimethoxysilyl)propyl acrylate, has a chemical formula of C12H22O5Si and a molecular weight of 282.38 g/mol. The compound is a clear, colorless liquid with a boiling point of 220-222°C and a density of 1.07 g/cm3 at 25°C. It is soluble in most organic solvents and reacts readily with water to form silanols and methanol.

One of the distinguishing properties of 3-acryloxypropyl trimethoxysilane is its acrylate functionality. This means that the compound has a reactive double bond (C=C) that can undergo free radical polymerization with other acrylate monomers to form crosslinked networks. This property makes 3-acryloxypropyl trimethoxysilane a valuable building block in the synthesis of various polymers and coatings.

Applications

The versatility of 3-acryloxypropyl trimethoxysilane stems from its ability to react with a wide range of substrates and functional groups. Some of the common applications of 3-acryloxypropyl trimethoxysilane include:

1. Coatings: 3-acryloxypropyl trimethoxysilane is used as a coupling agent and crosslinker in various coatings systems, including waterborne, solventborne, and UV-curable coatings. When added to the coating formulation, it can improve adhesion to various substrates, enhance scratch resistance, and impart hydrophobicity.

2. Adhesives: 3-acryloxypropyl trimethoxysilane is commonly used as a coupling agent and crosslinker in adhesives and sealants. It can improve the bonding strength between substrates, reduce shrinkage and stress during curing, and enhance the durability of the adhesive joint.

3. Composites: 3-acryloxypropyl trimethoxysilane is used as a coupling agent and compatibilizer in various composite systems, including glass fiber reinforced plastics (GFRP), carbon fiber reinforced plastics (CFRP), and natural fiber composites (NFC). It can improve the interfacial adhesion between the reinforcement and the matrix, enhance the mechanical properties, and reduce the water uptake and degradation of the composite.

Innovations

As a leading manufacturer and supplier of silanes and other specialty chemicals, INNO Specialty Chemicals is committed to developing new and innovative products that meet the evolving needs of the market. One of the recent innovations from INNO is the development of a series of self-crosslinking acrylic emulsions based on 3-acryloxypropyl trimethoxysilane.

These emulsions are designed to provide high-performance coatings with excellent adhesion, hardness, and chemical resistance. They are suitable for a wide range of substrates, including metal, plastic, wood, and concrete. The self-crosslinking mechanism eliminates the need for external crosslinkers, thus simplifying the formulation and reducing the environmental impact.

Another innovation from INNO is the development of a series of functionalized silanes based on 3-acryloxypropyl trimethoxysilane. These silanes have been modified with various functional groups, such as amino, epoxy, and carboxylic acid, to impart specific properties to the substrate or the coating. For example, the amino-functionalized silanes can improve the adhesion to polar substrates, while the epoxy-functionalized silanes can enhance the chemical resistance and toughness of the coating.

Conclusion

In summary, 3-acryloxypropyl trimethoxysilane is a highly functional and reactive silane that has found widespread use in coatings, adhesives, and composites. Its acrylate functionality makes it a valuable building block in the synthesis of various polymers and coatings. INNO Specialty Chemicals is a leading manufacturer and supplier of 3-acryloxypropyl trimethoxysilane and other specialty chemicals. Its recent innovations in self-crosslinking acrylic emulsions and functionalized silanes demonstrate its commitment to providing high-performance and sustainable solutions to the market.

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