Description

1,2-Ethanediamine,n-[(Trimethoxysilyl)Methyl]- is a bifunctional organosilane coupling agent containing both a primary amine and a trimethoxysilyl group. This dual functionality makes it a critical component for creating strong, durable bonds between inorganic materials and organic polymers. It is primarily used by manufacturers in the composites, adhesives, and coatings industries seeking to enhance material performance and longevity. Its unique structure allows it to act as a surface modifier and cross-linking agent.

Application

• Glass Fiber & Mineral-Filled Composites: As a coupling agent to improve the interfacial adhesion between glass fibers or mineral fillers and polymer matrices like epoxy, nylon, or polyurethane, resulting in enhanced mechanical strength and moisture resistance.
• Adhesives & Sealants: Used as an adhesion promoter and cross-linker in silicone, epoxy, and polyurethane-based formulations to improve bond strength to difficult substrates like glass, metals, and concrete.
• Surface Treatment & Primers: Applied as a surface modifier for metals, glass, and silica to improve the wettability and adhesion of subsequent coatings, paints, or inks.
• Rubber Reinforcement: Acts as a coupling agent in silica-filled rubber compounds (e.g., for tire treads) to reduce hysteresis and improve abrasion resistance.
• Resin Modification: Incorporated into epoxy and other thermoset resins to modify flexibility, toughness, and adhesion properties.
• Nanomaterial Functionalization: Used to functionalize nanoparticles (e.g., silica, carbon nanotubes) to facilitate their dispersion and integration into polymer systems.

Basic Information

Product Name	1,2-Ethanediamine,n-[(Trimethoxysilyl)Methyl]-
CAS No.	51980-40-6
Molecular Formula	C7H20N2O3Si
Molecular Weight	208.34 g/mol
Synonyms	N-[(Trimethoxysilyl)methyl]ethylenediamine; (Trimethoxysilylmethyl)ethylenediamine; N-(Trimethoxysilylmethyl)ethylenediamine; 2-[(Trimethoxysilyl)methyl]amino]ethylamine; Aminoethylaminopropyltrimethoxysilane (common industry name); AEPTMS; Silane AY 43-031; Dynasylan 1411; KH-792 (common trade name variant); γ-Aminopropyltrimethoxysilane derivative
EINECS	257-603-7

Quality Control

Our production of 1,2-Ethanediamine,n-[(Trimethoxysilyl)Methyl]- adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency and meets high-purity standards suitable for industrial applications. Certificates of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

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) to prevent degradation from moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 97.0%
Refractive Index (n20/D)	1.440 - 1.450
Density (g/mL, 25°C)	1.020 - 1.050

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