3-(Trimethoxysilyl)propyl acetate CAS No:59004-18-1 C8H18O5Si

Main Applications

1.‌Coupling Agent/Adhesion Promoter‌: Used in composite materials such as epoxy resins, polyesters, polyurethanes, acrylic resins, and rubber to significantly improve the interfacial bond strength and mechanical properties between glass, metals, mineral fillers, and the resin matrix.

2.‌Ink and Coating Additives‌: Used in solvent-based inks and coatings to promote cross-linking and curing, and to enhance abrasion resistance, weather resistance, and adhesion to polar substrates.

3.‌Monomer Copolymerization and Crosslinking Agents‌: Contains an acetoxy group that can participate in radical copolymerization (e.g., with monomers such as acrylic acid, methacrylic acid, and vinyl acetate) to prepare moisture-curable silane-modified polymers for use in adhesive and sealant systems.

4.‌Surface Modification‌: Acts as a surface treatment agent for pigments and fillers, enhancing dispersion and compatibility with the organic phase.‌‌

Storage Conditions

1.‌Environmental Requirements‌: Store in a cool, dry, and well-ventilated area. Recommended temperature: 2–8°C or room temperature away from heat (specific to supplier specifications). Strictly protect from light.

2.‌Sealing and Moisture Protection‌: Must be stored in a strictly sealed container, as exposure to water or moisture can cause hydrolysis, producing acetic acid and methanol, which may lead to degradation or self-polymerization; avoid prolonged contact with air.

3.‌Precautions‌:‌ Strictly avoid contact with water, strong alkalis, and amine compounds; keep away from sources of fire and high temperatures; ensure the container lid is intact to prevent moisture ingress.

4.‌Stability Note‌: Relatively stable at room temperature when kept dry and sealed; once the container is opened and moisture enters, hydrolysis accelerates, so it is recommended to use it as soon as possible; the hydrolysis product is unstable and should not be stored for long periods.‌‌