Description

Aminoethylaminopropylmethylsiloxane - Dimethylsiloxane Copolymer is a functionalized silicone copolymer featuring reactive aminoethylaminopropyl groups along a dimethylsiloxane backbone, offering a unique combination of silicone properties with amine functionality. This structure is critical for its role as a versatile coupling agent, surfactant, and modifier, enabling adhesion promotion and compatibility between dissimilar materials. It is essential for formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in personal care and textile processing, seeking to enhance performance through surface modification and crosslinking.

Application

• Adhesion Promoter: Used in primers and coatings to improve the bond between organic polymers (epoxies, polyurethanes) and inorganic substrates like glass, metals, and minerals.
• Surface Modifier: Imparts durable hydrophobicity, lubricity, and release properties to textiles, fibers, and fillers (e.g., silica, carbon black).
• Crosslinking Agent & Chain Extender: Functions as a reactive intermediate in the synthesis of modified silicones, polyurethanes, and epoxy resins, enhancing mechanical and thermal properties.
• Personal Care Ingredient: Acts as a conditioning agent and emulsifier in hair care and skincare formulations, providing softness and improved manageability.
• Filler Treatment Enhances the dispersion and compatibility of inorganic fillers within polymer matrices, improving composite strength and processing.
• Antifoam Component: Serves as a key ingredient in silicone-based antifoam and defoamer formulations for industrial processes.

Basic Information

Product Name	Aminoethylaminopropylmethylsiloxane - Dimethylsiloxane Copolymer
CAS No.	71750-79-3
Molecular Formula	Contact for details
Molecular Weight	Varies by grade and chain length
Synonyms	Amino-Functional Silicone Fluid; Aminopropylmethylsiloxane-Dimethylsiloxane Copolymer; N-(2-Aminoethyl)-3-aminopropylmethylsiloxane-dimethylsiloxane Copolymer; Aminoethylaminopropyl Modified Silicone; Bis-Amino Functional Silicone; Silicone Amine Copolymer; Poly[dimethylsiloxane-co-[3-[(2-aminoethyl)amino]propyl]methylsiloxane]; Dow Corning® 2-8566 (example trade name)
EINECS	Contact for details

Quality Control

Our Aminoethylaminopropylmethylsiloxane - Dimethylsiloxane Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of amine value, viscosity, and refractive index. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance 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). This product is hygroscopic (moisture-sensitive) and may react with atmospheric carbon dioxide; keep containers tightly sealed when not in use. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber viscous liquid
Identification (IR)	Conforms to structure
Amine Value (meq/g)	Contact for details
Viscosity @ 25°C (cSt)	Contact for details
Refractive Index @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details
Water Content	< 0.5%

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