Description

n-(2-Aminoethyl)-11-Aminoundecyltrimethoxysilane is a specialized bifunctional organosilane coupling agent featuring both primary amino and alkoxysilane groups on a long hydrocarbon chain. This unique molecular structure enables it to form robust covalent bonds between inorganic substrates and organic polymers, dramatically improving adhesion, mechanical strength, and durability in composite materials. It is essential for manufacturers in the advanced composites, coatings, adhesives, and sealants industries seeking to enhance the performance and longevity of their products.

Application

• Glass Fiber & Mineral Filler Treatment: As a coupling agent for glass fibers, silica, and other mineral fillers to improve their compatibility and bonding with epoxy, nylon, polyurethane, and other polymer matrices.
• Adhesive & Sealant Formulations: To significantly enhance the adhesion of epoxy, polyurethane, and acrylic-based adhesives and sealants to challenging substrates like metals, glass, and concrete.
• Surface Modification & Primers: Used to create reactive amino-functionalized surfaces on metals, glass, and ceramics, promoting superior paint, ink, and coating adhesion and corrosion resistance.
• Rubber & Tire Reinforcement: As a key additive in silica-filled rubber compounds (e.g., for "green tires") to reduce rolling resistance, improve wet grip, and enhance filler-polymer interaction.
• Advanced Composite Materials: Critical for manufacturing high-performance fiber-reinforced plastics (FRP) and carbon fiber composites used in aerospace, automotive, and wind energy applications.
• Waterborne Coating Systems: To improve the durability and adhesion of environmentally friendly water-based coatings on various industrial substrates.

Basic Information

Product Name	n-(2-Aminoethyl)-11-Aminoundecyltrimethoxysilane
CAS No.	121772-92-7
Molecular Formula	C₁₈H₄₂N₂O₃Si
Molecular Weight	362.63 g/mol
Synonyms	11-(2-Aminoethylamino)undecyltrimethoxysilane; N-[2-(11-Trimethoxysilylundecylamino)ethyl]ethylenediamine; Diaminosilane YDH-602; Aminoethylaminoundecyltrimethoxysilane; AEAPTMS; 3-(2-Aminoethylamino)propyltrimethoxysilane homologue; Dow Corning Z-6020 analog; Amino-functional silane coupling agent; Bis(amino) organosilane
EINECS	Contact for details

Quality Control

Our production of n-(2-Aminoethyl)-11-Aminoundecyltrimethoxysilane adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing, including assay (by titration or NMR), identity confirmation (IR), and impurity profiling, to ensure consistency and high purity. Certificates of Analysis (COA) detailing all specifications are provided with each shipment. We support compliance with relevant global regulatory frameworks, including REACH.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Silane Content)	≥ 95.0%
Amino Value	Contact for details
Refractive Index (n20D)	~1.450 - 1.455
Density (g/mL, 25°C)	~0.97 - 0.99
Moisture (Karl Fischer)	≤ 0.5%

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