Description

Siloxanes And Silicones, Di-Me, Mono3-(2-Aminoethyl)Aminopropyldimethoxysilyloxy-Terminated is a specialized amino-functional siloxane oligomer, distinguished by its reactive primary amine and dimethoxysilyl terminal groups. This dual functionality makes it a highly effective coupling agent and adhesion promoter, bridging organic polymers with inorganic substrates. It is essential for formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance material compatibility, surface wetting, and long-term durability in demanding applications.

Application

• Adhesion Promoter: Significantly improves the bond strength of epoxy, polyurethane, and silicone-based adhesives and sealants to glass, metals, and mineral surfaces.
• Surface Modifier for Fillers: Used to treat silica, glass fibers, and other mineral fillers to improve dispersion in polymer matrices and enhance composite mechanical properties.
• Crosslinking Agent & Chain Extender: Functions as a reactive intermediate in the synthesis of modified silicones, polyamides, and other polymers, introducing amine functionality.
• Primer & Coupling Agent in Coatings: Enhances the adhesion and corrosion resistance of protective coatings on aluminum, steel, and other alloys.
• Fiber Sizing: Applied as a key component in sizing formulations for glass and carbon fibers to optimize the fiber-matrix interface in reinforced plastics.
• Release Coatings Modifier: Incorporated into silicone release coatings to modify surface energy and anchorage.

Basic Information

Item	Details
Product Name	Siloxanes And Silicones, Di-Me, Mono3-(2-Aminoethyl)Aminopropyldimethoxysilyloxy-Terminated
CAS No.	71750-81-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3-(2-Aminoethyl)aminopropylmethyl-dimethoxysilane terminated polydimethylsiloxane; Aminoethylaminopropylmethyl-dimethoxysiloxy terminated polydimethylsiloxane; Amino-functional polydimethylsiloxane, dimethoxy terminated; N-(2-Aminoethyl)-3-aminopropylmethyl-dimethoxysiloxy terminated PDMS; Diamino-functional siloxane oligomer; CAS 71750-81-7; Aminoalkyl silicone fluid; Aminosiloxane coupling agent
EINECS	Contact for details

Quality Control

Our production of Siloxanes And Silicones, Di-Me, Mono3-(2-Aminoethyl)Aminopropyldimethoxysilyloxy-Terminated adheres to a stringent quality management system. Every batch is analyzed to ensure consistent amine value, viscosity, and functional group content. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and key physical parameters is provided to guarantee the material meets your specific application requirements and supports your own quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent moisture absorption and hydrolysis of the methoxysilyl groups, which can affect performance. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (Amino Value)	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details
Refractive Index @ 25°C	Contact for details
Moisture (Karl Fischer)	< 0.5%

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