Aminosilicone is an important compound widely used in textile softening finishing and other industrial fields. Based on different classification criteria, aminosilicone can be divided into various types. The following is a detailed introduction to the classification of aminosilicone:

1. Classification by Amine Type
   • Primary Amine Aminosilicone: Aminosilicone containing primary amine groups (-NH₂).
   • Secondary Amine Aminosilicone: Aminosilicone containing secondary amine groups (e.g., -NHCH₃).
   • Tertiary Amine Aminosilicone: Aminosilicone containing tertiary amine groups (e.g., -N(C₂H₅)₂).
   • Aromatic Amine Aminosilicone: Aminosilicone containing aromatic amine groups.
   • Quaternary Ammonium Salt Aminosilicone: Aminosilicone obtained through quaternization reactions, belonging to the quaternary ammonium salt class.
2. Classification by Amine Position in Polysiloxane Molecule
   • Single-End Aminosilicone: Aminosilicone with amine groups located at one end of the polysiloxane molecule.
   • Double-End Aminosilicone: Aminosilicone with amine groups located at both ends of the polysiloxane molecule.
   • Side-Chain Aminosilicone: Aminosilicone with amine groups located on the side chains of the polysiloxane molecule.
   • Copolymerized Aminosilicone: Aminosilicone with amine groups introduced as copolymerized monomers into the polysiloxane molecular chain.
   • Mixed Aminosilicone: Aminosilicone composed of different positions and types of amine groups mixed together.
3. Classification by End Group
   • Non-Reactive Aminosilicone: Aminosilicone with methyl end groups, suitable for processing cotton and silk fabrics.
   • Reactive Aminosilicone: Aminosilicone with hydroxyl or methoxy end groups, suitable for processing animal fibers.

Due to its unique structure and properties, aminosilicone is widely used in various fields such as textile softening finishing, resin modification, and coating additives. By understanding the classification of aminosilicone, one can better select and use this compound to meet the needs of different fields.

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