I. Definition and Chemical Characteristics of Diamino Silicone Oil
Diamino silicone oil is an organosilicon compound based on a siloxane main chain, with two amino functional groups introduced at both ends or on the side chains of the molecular chain. Its core structure consists of a siloxane backbone and amino groups (-NH₂), a design that gives it unique chemical activity and functionality. At 25°C, its viscosity can reach 4500 mm²/s, and its density is approximately 0.972 g/cm³.  These stable physical parameters provide a reliable foundation for subsequent applications. The strong polarity and reactivity of the amino groups allow it to bind to substances such as fibers and proteins through electrostatic adsorption or hydrogen bonding, forming a strong, oriented adsorption layer, thereby significantly improving the surface properties of the material.

II. Core Functions and Application Scenarios of Diamino Silicone Oil
Textile Finishing Agent: As an important auxiliary agent in the textile industry, diamino silicone oil can impart a soft and smooth feel to fabrics at a concentration of 0.3%-1%. Its diamino structure effectively reduces yellowing caused by high-temperature processing, improving fabric quality. It also enhances the wrinkle resistance, elasticity, and tear strength of fabrics, making it suitable for high-end suits, wedding dresses, and other applications with stringent deformation requirements.
Hair Conditioning Agent: In the personal care industry, diamino silicone oil is a key ingredient in hair care products. The amino groups in its molecules can tightly bind to the protein groups exposed in damaged hair, filling in cuticle defects and making hair smoother and flatter, reducing frizz and split ends. In addition, it improves hair manageability, softness, and shine, making it an ideal choice for repairing permed and dyed hair.
Other Applications: Diamino silicone oil can also be used in fiber fillers, coating agents, instrument polishing agents, paper treatment agents, and many other fields, demonstrating its broad application potential.