Description

3-Aminopropyltris(Methoxyethoxyethoxy)Silane is a specialized organosilicon coupling agent featuring a reactive primary amine group and a hydrolyzable trialkoxysilane moiety. This bifunctional structure is critical for creating durable covalent bonds between inorganic substrates and organic polymers, significantly enhancing composite material performance. It is essential for manufacturers in the coatings, adhesives, sealants, and advanced materials sectors seeking to improve adhesion, mechanical strength, and long-term durability in demanding environments.

Application

• Adhesion Promoter: A key component in primers and coupling agents for coatings on glass, metals, and minerals, dramatically improving wet and dry adhesion.
• Surface Modification: Used to functionalize silica, glass fibers, and other inorganic fillers to enhance compatibility and dispersion within polymer matrices like epoxies, polyurethanes, and nylons.
• Crosslinking Agent: Serves as a co-monomer or crosslinker in silicone-based polymers and hybrid organic-inorganic systems to tailor network density and properties.
• Fiberglass & Composite Manufacturing: Applied as a sizing or finish on glass fibers to strengthen the fiber-resin interface in reinforced plastics (FRP), improving mechanical properties and moisture resistance.
• Nanomaterial Synthesis: Utilized in the surface functionalization of nanoparticles (e.g., silica, quantum dots) for stable dispersion in solvents and polymers for advanced electronic or optical applications.
• Waterborne System Stabilizer: Helps stabilize pigments and fillers in aqueous coating and adhesive formulations, preventing agglomeration and settling.

Basic Information

Product Name	3-Aminopropyltris(Methoxyethoxyethoxy)Silane
CAS No.	87794-64-7
Molecular Formula	C18H41NO9Si
Molecular Weight	443.61 g/mol
Synonyms	3-Aminopropyltri(2-(2-methoxyethoxy)ethoxy)silane; Silane A-1237; Amino silane coupling agent (PEG-modified); (3-Aminopropyl)tri[2-(2-methoxyethoxy)ethoxy]silane; Tris[2-(2-methoxyethoxy)ethoxy](3-aminopropyl)silane; 3-(Tri(2-(2-methoxyethoxy)ethoxy)silyl)propan-1-amine; Amino-PEG-silane; AMMEO-PEG3
EINECS	Contact for details

Quality Control

Our production of 3-Aminopropyltris(Methoxyethoxyethoxy)Silane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (by titration or NMR), identity confirmation (IR), and impurity profiling, to ensure consistency and high purity. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay	≥ 95.0%
Refractive Index (n20/D)	1.440 - 1.450
Density (g/mL, 25°C)	1.010 - 1.030
Amino Value	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.