Description

3-(2-Aminoethylamino)Propyl-Dimethoxymethylsilane is a bifunctional organosilane coupling agent featuring both primary amine and alkoxysilane groups. This dual functionality makes it a critical component for creating strong, durable bonds between inorganic materials and organic polymers. It is essential for manufacturers in the composites, adhesives, and coatings industries seeking to enhance material performance, adhesion, and moisture resistance. The compound is supplied with the CAS number 3069-29-2.

Application

• Glass Fiber & Mineral-Filled Composites: Acts as a key coupling agent to improve the interfacial adhesion between glass fibers or mineral fillers and polymer matrices like epoxy, nylon, or polypropylene, significantly enhancing mechanical strength and durability.
• Adhesives & Sealants: Used as an adhesion promoter and crosslinker in epoxy, polyurethane, and silicone-based formulations to improve bond strength to difficult substrates like glass, metals, and painted surfaces.
• Surface Treatment & Primers: Applied as a surface modifier or in primer formulations for metals, glass, and minerals to improve the wettability and subsequent adhesion of paints, inks, and coatings.
• Rubber Reinforcement: Functions as a silane coupling agent in silica-filled rubber compounds (e.g., for tires), improving filler dispersion, reducing viscosity, and enhancing mechanical properties like tensile strength and abrasion resistance.
• Waterborne Systems: Serves as a crosslinking and stabilizing agent in water-based coatings and adhesives, improving water resistance and film integrity.
• Epoxy Curing & Modification: Can act as a curing agent or co-curing agent for epoxy resins, modifying flexibility and adhesion characteristics.

Basic Information

Product Name	3-(2-Aminoethylamino)Propyl-Dimethoxymethylsilane
CAS No.	3069-29-2
Molecular Formula	C8H22N2O2Si
Molecular Weight	206.36 g/mol
Synonyms	N-[3-(Dimethoxymethylsilyl)propyl]ethylenediamine; (3-(2-Aminoethylamino)propyl)methyldimethoxysilane; DAMO; Aminoethylaminopropylmethyldimethoxysilane; Methyldimethoxy[3-[(2-aminoethyl)amino]propyl]silane; 3-[(2-Aminoethyl)amino]propyl(methyl)dimethoxysilane; Silane, methyldimethoxy[3-[(2-aminoethyl)amino]propyl]-; N-(2-Aminoethyl)-3-aminopropylmethyldimethoxysilane
EINECS	221-306-1

Quality Control

Our production of 3-(2-Aminoethylamino)Propyl-Dimethoxymethylsilane adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including assay, purity, and identity confirmation, to ensure consistency and compliance with industry specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and quality assurance for our global B2B clients.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.4430 - 1.4470
Density (20°C)	0.970 - 0.990 g/mL

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